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Готові списки джерел за темами / Ewes Feeding and feeds / Статті в журналах

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Статті в журналах з теми "Ewes Feeding and feeds"

Автор: Grafiati

Опубліковано: 4 червня 2021

Оновлено: 28 січня 2023

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1

Chapple, D. G., K. P. A. Wheeler, G. Perrott, and M. Witt. "Comparison of sugar beet feeds and distillers grains as supplements for early lambing ewes fed straw-based and big-bale silage diets." Proceedings of the British Society of Animal Science 1999 (1999): 126. http://dx.doi.org/10.1017/s1752756200002817.

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Анотація:

Feeding lowland sheep on straw-based systems during pregnancy (Davies and Chapple 1995) has shown that ewe and lamb performance can be satisfactory, providing adequate compound supplementation was fed. Whole barley and soya bean meal has been the standard ration. Experiments with March-lambing ewes (Chapple et al., 1997) has shown that feeds based on molassed sugar beet feed and maize distillers dark grains can replace a barley/soya supplement. The objective of this work was to evaluate the effects on ewe and lamb performance of feeding sugar beet feeds with higher levels of distillers grains

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2

Chapple, D. G., K. P. A. Wheeler, and G. Perrott. "Evaluation of sugar beet feeds and maize distiller's dark grains as supplements for pregnant ewes fed straw-based diets." Proceedings of the British Society of Animal Science 1998 (1998): 102. http://dx.doi.org/10.1017/s1752756200597543.

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Анотація:

The feeding of lowland sheep on straw-based systems during pregnancy was developed at ADAS Rosemaund during the last decade (Davies and Chappie 1995). Results showed that ewe and lamb performance were satisfactory, providing adequate compound supplementation was fed. Whole barley and soya bean meal has been the standard ration, but feeds based on high protein molassed sugar beet feed (Probeet Trident Feed) and maize distiller's dark grains could improve palatability and be easier to feed. The objective of this work was to evaluate the effects on ewe and lamb performance of feeding sugar beet f

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3

Chapple, D. G., K. P. A. Wheeler, and G. Perrott. "Evaluation of sugar beet feeds and maize distiller's dark grains as supplements for pregnant ewes fed straw-based diets." Proceedings of the British Society of Animal Science 1998 (1998): 102. http://dx.doi.org/10.1017/s0308229600033158.

Повний текст джерела

Анотація:

The feeding of lowland sheep on straw-based systems during pregnancy was developed at ADAS Rosemaund during the last decade (Davies and Chappie 1995). Results showed that ewe and lamb performance were satisfactory, providing adequate compound supplementation was fed. Whole barley and soya bean meal has been the standard ration, but feeds based on high protein molassed sugar beet feed (Probeet Trident Feed) and maize distiller's dark grains could improve palatability and be easier to feed. The objective of this work was to evaluate the effects on ewe and lamb performance of feeding sugar beet f

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4

Chapple, D. G., K. P. A. Wheeler, and S. P. Marsh. "A comparison of feed blocks or compound supplementary feeding systems for twin-bearing ewes during pregnancy and lactation." Proceedings of the British Society of Animal Science 1996 (March 1996): 176. http://dx.doi.org/10.1017/s1752756200593715.

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Анотація:

The feeding of ewes in late pregnancy is critically important because this is a period of high foetal growth rate. Feed blocks have been used to replace compound feeds in both hill and upland flocks but there is limited information available on block-feeding to lowland flocks.To evaluate the replacement of trough-feeding with self-help feed blocks, for housed ewes fed good quality grass silage during late pregnancy, and to lactating ewes at grass.

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5

Chapple, D. G., K. P. A. Wheeler, and S. P. Marsh. "A comparison of feed blocks or compound supplementary feeding systems for twin-bearing ewes during pregnancy and lactation." Proceedings of the British Society of Animal Science 1996 (March 1996): 176. http://dx.doi.org/10.1017/s0308229600031421.

Повний текст джерела

Анотація:

The feeding of ewes in late pregnancy is critically important because this is a period of high foetal growth rate. Feed blocks have been used to replace compound feeds in both hill and upland flocks but there is limited information available on block-feeding to lowland flocks.To evaluate the replacement of trough-feeding with self-help feed blocks, for housed ewes fed good quality grass silage during late pregnancy, and to lactating ewes at grass.

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6

Chapple, D. G., K. P. A. Wheeler, G. Perrott, and M. Witt. "Simple mixes of molassed sugar beet feed and distillers grains for lactating ewes." Proceedings of the British Society of Animal Science 2000 (2000): 78. http://dx.doi.org/10.1017/s175275620000079x.

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Анотація:

Feeding of lowland sheep on straw-based systems during pregnancy and in early lactation has shown that ewe and lamb performance can be satisfactory, providing adequate compound supplementation is fed (Davies and Chapple, 1995). Whole barley and soya bean meal has been the standard ration. However, soya bean meal is imported and not fully traceable. Experiments with January- and March-lambing ewes have shown that traceable, homeproduced feeds based on equal quantities of molassed sugar beet feed and either maize or barley distillers grains can replace a barley/soya supplement when fed with stra

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7

Chapple, D. G., K. P. A. Wheeler, M. W. Witt, and W. E. Blackburn. "Evaluation of an ensiled mix of moist sugar beet feed (pressed pulp) plus maize distillers dark grains as a supplement for twin-bearing March-lambing ewes fed straw-based diets." Proceedings of the British Society of Animal Science 2003 (2003): 98. http://dx.doi.org/10.1017/s1752756200012576.

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Анотація:

Feeding lowland sheep on straw-based systems during pregnancy is practised on many livestock/arable farms. Simple mixes of molassed sugar beet feed and distillers dark grains have been cost effective supplements for March-lambing ewes fed straw and produced satisfactory ewe and lamb performance (Chappleet al., 1998 and 2001). An ensiled mix of pressed sugar beet pulp and dried maize distillers grains (Praize, Trident Feeds) has been fed as the sole diet for finishing lambs (Pattinsonet al., 2001) but there is little information on feeding Praize to pregnant ewes. The objective of this study wa

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8

Chapple, D. G., K. P. A. Wheeler, G. Perrott, and M. Witt. "Simple mixes of molassed sugar beet feed, field beans and distillers grains for pregnant March-lambing ewes." Proceedings of the British Society of Animal Science 2001 (2001): 118. http://dx.doi.org/10.1017/s1752756200005007.

Повний текст джерела

Анотація:

Feeding of lowland sheep on straw-based systems during pregnancy and in early lactation has shown that ewe and lamb performance can be satisfactory, providing adequate compound supplementation is fed (Davies and Chapple, 1995). Whole barley and soya bean meal has been the standard ration. However, soya bean meal is imported and may not be fully traceable. Maize or barley distillers fed with beans could provide traceable protein to replace soya bean meal in sheep diets. Experiments with housed early-lambing ewes and ewes suckling twin lambs at grass have shown that traceable feeds, based on mol

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9

Stanford, K., G. L. Wallins, B. M. Lees, and H. H. Mündel. "Feeding value of immature safflower forage for dry ewes." Canadian Journal of Animal Science 81, no. 2 (June 1, 2001): 289–92. http://dx.doi.org/10.4141/a00-090.

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Анотація:

An in situ study compared mature, frost-damaged safflower to full-bloom safflower and mid-bloom alfalfa-grass hay, with the full-bloom safflower and alfalfa-grass hay also used in a ewe (n = 40) feeding study. Feed refusals were higher (P < 0.05) for ewes fed the safflower, but feed conversion efficiency was improved (P < 0.05) for the safflower-fed sheep. Ewes were bred shortly after the 9-wk feeding trial and the proportion of ewes lambing was higher (P < 0.05) in the safflower-fed ewes. Sheep were able to utilise the safflower forage as thorough chewing of spines likely prevented m

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10

Johns, C., J. Johns, and D. R. Stevens. "Increasing lamb survival and lamb weaning weight through feeding high fecundity crossbred sheep." NZGA: Research and Practice Series 16 (January 1, 2016): 323–28. http://dx.doi.org/10.33584/rps.16.2016.3244.

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The monitoring of a high fecundity ewe flock in the Te Anau basin demonstrates the process of improved feeding to improve lamb survival and growth to weaning. Feed budgeting was changed from traditional to tailored feed requirements based on measured ewe liveweight with wastage of 15% factored in. Feed allocation was changed from monthly to weekly increases during late pregnancy, and set stocking was delayed until the planned start of lambing. This increased late pregnancy feed allocation from 99 kg DM/ewe to 128 and 144 kg DM/ewe for twin and triplet bearing ewes, respectively. Ewe body condi

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11

Waterhouse, A., and S. P. Marsh. "Effect of supplementation method on grazing behaviour of hill ewes." Proceedings of the British Society of Animal Science 1999 (1999): 131. http://dx.doi.org/10.1017/s1752756200002866.

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Анотація:

Supplementary feeding of hill ewes during pregnancy is an important aspect of sheep management. Two broad groups of feed are given. Firstly, there is feed offered on a restricted basis, daily. Secondly, there are feeds offered on an ad libitum basis, of which feedblocks are the most important form for hill ewes. Some studies have shown interaction between feedblock intake and social behaviour but little is known about foraging behaviour.The study used three, 3 ha (50m x 600m) paddocks side by side, rising steeply from 280 to 490 metres above sea level on a semi-natural acid grassland hill past

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12

Ford, Hunter, Massimo Bionaz, Serkan Ates, Joe Klopfenstein, Daniella Hasan, Gracia Puerto Hernandez, Julia VanDerZanden, Magdalena Ibarra, Caitlynn Dougherty, and Samantha Heney. "63 Effect of Chicory Silage and Se-yeast on Peripartum Ewes: Performance Data." Journal of Animal Science 99, Supplement_3 (October 8, 2021): 34. http://dx.doi.org/10.1093/jas/skab235.059.

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Анотація:

Abstract The objective of this study was to test the possibility of improving the performance of peripartum ewes by feeding a combination of chicory silage and Se-yeast. Approximately four weeks prior to lambing, 36 pregnant Polypay ewes were moved into single pens and randomly assigned to one of four groups to be fed either grass or chicory silage and supplemented or not with 3.6 mg Se/day (DiaMune, Diamond V). Daily dry matter intake (DMI), water intake, body weight gain of lambs and body weight changes of the ewes, milk yield using a weigh-suckle-weigh system, and milk components were recor

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13

Flaherty, Kara, Branden J. Campbell, and Alejandro E. Relling. "240 Evaluating the Effect of Hay, Fed Ad-Libitum or Controlled, or Soybean Hulls During Gestation on Body Weight and Dry Matter Intake of the Ewe and Body Weight on the Offspring Until Weaning." Journal of Animal Science 100, Supplement_2 (April 12, 2022): 125. http://dx.doi.org/10.1093/jas/skac064.213.

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Abstract The objective of this experiment was to evaluate the effect of feeding different types and amount of fiber during gestation on ewe body weight (BW) and dry matter intake (DMI), and lamb BW at birth and weaning (60 d of age). Ninety Dorset × Hampshire ewes were blocked by BW and within each block randomly assigned to 1 of 3 treatments (10 ewes/pen; 3 pens/treatment): ad-libitum hay (CONT), limit-fed hay (LH), and soybean hulls (SH). The concentrate roughage ratio for the LH and SH diets was 1:3. From d 0 (28 d post mating) to d 63, LH and SH ewes were fed using slick bunk management. E

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14

Merrell, B. G., and S. P. Marsh. "Effects on ewe and lamb performance of supplementing housed twin bearing/rearing crossbred ewes with self-help feed-blocks and liquid feed during late pregnancy and early lactation." Proceedings of the British Society of Animal Production (1972) 1994 (March 1994): 205. http://dx.doi.org/10.1017/s0308229600027495.

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Анотація:

Twin-bearing crossbred ewes may be supplemented for a total period of up to 12 weeks during late pregnancy and early lactation, with feeding costs in some systems accounting for approximately 0.45 of variable costs. A less expensive mean of supplementing ewes over this period would be one practical way of reducing a major variable cost. Self-help feed-blocks have been successfully fed to hill ewes for many years and there is increasing evidence that a self-help feed-block system has applications within the more productive crossbred flocks. An experiment was undertaken which determined the effe

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15

Sarvinda, Diahanvika Tri, Sigit Bintara, I. Gede Suparta Budisatria, Kustantinah Kustantinah, and Endang Baliarti. "The Effect of Flushing Premating with Spirulina Platensis Supplementation on Ewes Postpartum Estrus." Buletin Peternakan 46, no. 1 (February 27, 2022): 31. http://dx.doi.org/10.21059/buletinpeternak.v46i1.67523.

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Анотація:

Lactating ewes require high nutrients for basic life requirements and milk production. If not fulfilled, it can have an impact on Negative Energy Balance (NEB) that reduces body weight, Body Condition Score (BCS), and extend the appearance of Postpartum Estrus (PPE). Premating flushing feed is an effort to improve ewe nutrients by adding high nutrition for preparation before mating so that after lambing and suckling, the ewe immediately estrus. This research aimed to evaluate the performance of ewes through premating flushing feeding. The research was conducted at Mendo Galak Farm, Sleman, Yog

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16

Pattinson, S. E., A. Locke, and C. M. Minter. "Grainbeet as a feed for ewes in late pregnancy." Proceedings of the British Society of Animal Science 1998 (1998): 101. http://dx.doi.org/10.1017/s1752756200597531.

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Анотація:

Within early lambing systems, there is a heavy reliance on concentrate feeding in late pregnancy. Therefore, the possibility of replacing conventional dietary ingredients (e.g. barley, fishmeal) with cheaper by-products, such as sugar beet pulp and brewers grains, is of particular interest. Pelleted distillers barley grains fed with molassed sugar beet nuts have been shown to be a suitable feed for pregnant ewes (Merrell and Hyslop, 1994). However, some health problems have been noted when feeding malt distillers wet grains (Vipond and Lewis, 1993). The objective of this trial was to investiga

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17

Pattinson, S. E., A. Locke, and C. M. Minter. "Grainbeet as a feed for ewes in late pregnancy." Proceedings of the British Society of Animal Science 1998 (1998): 101. http://dx.doi.org/10.1017/s0308229600033146.

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Анотація:

Within early lambing systems, there is a heavy reliance on concentrate feeding in late pregnancy. Therefore, the possibility of replacing conventional dietary ingredients (e.g. barley, fishmeal) with cheaper by-products, such as sugar beet pulp and brewers grains, is of particular interest. Pelleted distillers barley grains fed with molassed sugar beet nuts have been shown to be a suitable feed for pregnant ewes (Merrell and Hyslop, 1994). However, some health problems have been noted when feeding malt distillers wet grains (Vipond and Lewis, 1993). The objective of this trial was to investiga

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18

Luque, A., T. N. Barry, W. C. McNabb, P. D. Kemp, and M. F. McDonald. "The effect of grazing Lotus corniculatus during late summer - autumn on reproductive efficiency and wool production in ewes." Australian Journal of Agricultural Research 51, no. 3 (2000): 385. http://dx.doi.org/10.1071/ar99078.

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Анотація:

A grazing experiment was conducted at Massey University (Palmerston North, New Zealand) over 80 days in the late summer–autumn of 1998 (9 February–29 April). Reproductive performance and wool growth of ewes grazing on Lotus corniculatus (birdsfoot trefoil) were compared with those of ewes grazing perennial ryegrass–white clover pasture. A rotational grazing system with 210 mixed-age dry ewes (59.80.9 kg/ewe) was used, with 80 ewes grazing pasture [1 g of condensed tannin (CT) per kg dry matter (DM)] and 130 ewes grazing L. corniculatus (24 g CT/kg DM). Half of the ewes grazing L. corniculatus

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19

Walkom, S. F., F. D. Brien, M. L. Hebart, and W. S. Pitchford. "The impact of selecting for increased ewe fat level on reproduction and its potential to reduce supplementary feeding in a commercial composite flock." Animal Production Science 56, no. 4 (2016): 698. http://dx.doi.org/10.1071/an14579.

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In southern Australian grazing systems, energy availability typically exceeds energy requirements. Grazing systems are likely to have higher profitability if ewes can utilise this relatively cheap feed by gaining more condition (muscle and fat) and then mobilising it when feed is expensive. The present paper focusses on the importance of genetic merit for fat on the lifetime productivity of the ewe within a commercial operation. The analysis was carried out on a maternal composite stud flock in Holbrook, New South Wales. Ultrasound fat and muscle depth were measured on 2796 ewes as lambs at po

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20

THOMAS, V. M., E. AYERS, K. HANFORD, and R. KOTT. "INFLUENCE OF LASALOCID ON THE PRODUCTION OF GESTATING EWES IN AN EXTENSIVE GRAZING SYSTEM." Canadian Journal of Animal Science 68, no. 2 (June 1, 1988): 439–44. http://dx.doi.org/10.4141/cjas88-049.

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A winter feeding trial was conducted to evaluate the influence of lasalocid (L) on the production of gestating ewes in an extensive grazing system. Six hundred and sixty ewes were randomized within age and breed and allotted to feed supplements (0.23 kg head−1 d−1) containing either no L (C) or L at 308 mg kg−1 and fed for 84 d during gestation. Ewe weight change within periods (three, 28-d periods) was similar (P > 0.10) with the exception of period 2 where L-supplemented ewes tended to gain more (P < 0.10) weight than C ewes. Total ewe weight change during the wintering period and year

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21

Brand, T. S., F. Franck, A. Durand, and J. Coetzee. "Use of varying combinations of energy and protein sources as supplementary feed for lambing ewes grazing cereal stubble." Australian Journal of Experimental Agriculture 37, no. 1 (1997): 1. http://dx.doi.org/10.1071/ea95168.

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Summary. Three feeding trials compared production of lambing ewes grazing stubbles and fed different combinations of energy and protein supplements as loose licks. Each experiment had 2 treatments in a 2 x 2 factorial design. Experiment 1 compared urea (12.5 g/ewe. day) with fish meal (100 g/ewe. day) when fed with molasses (100 g/ewe. day) for 38 days during late pregnancy. Fish meal increased liveweight gain (from 2.0 to 5.7 kg) and wool growth (20%) but urea had no effect. In experiment 2, urea (12.5 g/ewe. day) was fed in combination with molasses (200 g/ewe. day) or barley meal (200 g/ewe

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22

Brown, D. C., and E. M. Thomas. "The effect of providing a creep feed with or without a coccidiostat to march born lambs kept at high stocking rates." Proceedings of the British Society of Animal Production (1972) 1992 (March 1992): 162. http://dx.doi.org/10.1017/s0308229600022728.

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Feeding straw as the only roughage to housed ewes during the winter is gaining in popularity. This practice requires new grazing techniques because silage aftermaths might not be available in the summer to reduce stocking rates as grazing demands increase. It has been shown that set stocking ewes at either 22 or 30 ewes/ha and feeding a creep feed to the lambs ensured that all lambs were sold by August and gross margins/ha were increased (Brown, 1986). However, at these high stocking rates coccidiosis was a problem.222 Mule ewes with their Suffolk or Polled Dorset cross lambs were divided into

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23

Petit, H. V. "Production of ewes rearing twin or triplet lambs fed grass silage with a commercial concentrate or a mixture of beet pulp and soybean meal." Canadian Journal of Animal Science 77, no. 1 (March 1, 1997): 87–93. http://dx.doi.org/10.4141/a96-028.

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Forty multiparous Outaouais ewes were used to investigate the effects of number of suckling lambs (2 versus 3) and type of feed supplement in grass silage-based diets on ewe and lamb performance. Treatments were arranged in a 2 × 2 factorial design. Isonitrogenous and isoenergetic supplements were either a mixture of beet pulp and soybean meal (BP) or a commercial concentrate (CO). Dietary treatments continued from 28 d prepartum until 42 d postpartum. Milk yield was measured weekly. Dietary treatments and number of suckling lambs had no effect (P > 0.10) on DM intake. Feeding BP resulted i

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24

Kiełtyka-Kurc, Agata, Joanna Rydel-Gigauri, and Marcin T. Górecki. "Circadian Activity of Dairy Ewes Kept Indoors / Aktywność dobowa maciorek mlecznych utrzymywanych w chowie alkierzowym." Annals of Animal Science 13, no. 1 (January 1, 2013): 55–62. http://dx.doi.org/10.2478/v10220-012-0058-7.

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Abstract The aim of this study was to characterize the activity of Polish Milk Sheep 05 ewes housed in the indoor system. One group of 28 animals was observed. The observations lasted 227 hours and were conducted during day and night. The activity of each ewe was recorded every 10 minutes. The observed sheep rested for most of the day. Their activity increased at dawn, during milking (and feeding) and after green forage was provided in the afternoon. The time of feeding was mostly dependent on human activities. Rumination always occurred after the feed was offered. Sheep mainly slept lying dow

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25

Tillquist, Nicole M., Amanda S. Reiter, Mia Y. Kawaida, Brandon I. Smith, Sarah A. Reed, Steven A. Zinn, and Kristen E. Govoni. "PSIII-24 Poor gestational nutrition impacts sheep offspring growth but not feed efficiency." Journal of Animal Science 99, Supplement_3 (October 8, 2021): 311. http://dx.doi.org/10.1093/jas/skab235.571.

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Abstract The objective was to determine the effects of poor maternal nutrition during gestation on growth and feed efficiency of offspring. We hypothesized that body weights (BW) would decrease and residual feed intake (RFI) would increase (reduced feed efficiency) in offspring of restricted- and over-fed ewes. Forty-six multiparous Dorset ewes pregnant with twins were fed 100%, 60% or 140% of NRC requirements from d 30 of gestation until parturition. Offspring are referred to as CON (n = 10 ewes; 12 rams), RES (n = 13 ewes; 21 rams), and OVER (n = 16 ewes; 13 rams), respectively. Lamb BW were

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26

Hills, J., I. Kyriazakis, J. V. Nolan, G. N. Hinch, and E. Thomson. "Conditioned feeding responses in sheep to flavoured foods associated with sulphur doses." Proceedings of the British Society of Animal Science 1998 (1998): 26. http://dx.doi.org/10.1017/s1752756200596781.

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Анотація:

The development by ruminants of strong conditioned flavour aversions (CFAs) to foods associated with the administration of LiCl (an artificial toxin) has demonstrated their potential to avoid feeds that cause negative postingestive consequences (Provenza, 1995). Weaker CFAs are formed when they ingest foods with the detrimental secondary plant compound, oxalic acid (Kyriazakis et al. 1997). Moreover, animals may exhibit conditioned preferences (CFPs) for foods supplying appropriate amounts of nutrients such as nitrogen (Provenza, 1995). In this study we tested whether a continuum exists in the

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27

Hills, J., I. Kyriazakis, J. V. Nolan, G. N. Hinch, and E. Thomson. "Conditioned feeding responses in sheep to flavoured foods associated with sulphur doses." Proceedings of the British Society of Animal Science 1998 (1998): 26. http://dx.doi.org/10.1017/s0308229600032396.

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Анотація:

The development by ruminants of strong conditioned flavour aversions (CFAs) to foods associated with the administration of LiCl (an artificial toxin) has demonstrated their potential to avoid feeds that cause negative postingestive consequences (Provenza, 1995). Weaker CFAs are formed when they ingest foods with the detrimental secondary plant compound, oxalic acid (Kyriazakis et al. 1997). Moreover, animals may exhibit conditioned preferences (CFPs) for foods supplying appropriate amounts of nutrients such as nitrogen (Provenza, 1995). In this study we tested whether a continuum exists in the

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28

Holst, PJ. "Supplementary feeding of oat grain or lucerne hay to crossbred ewes at lambing." Australian Journal of Experimental Agriculture 27, no. 2 (1987): 211. http://dx.doi.org/10.1071/ea9870211.

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Border Leicester x Merino ewes (body condition score 2.6-3.0) grazing short pastures were given feed supplements during lambing, to examine effects on lamb survival. Supplementary feeding of poor quality lucerne hay, good quality lucerne hay or oaten grain, each given ad libitum, began 3 days prior to the start of the 4-week lambing period and continued to the end of lambing. One third of the ewes had twins. Lamb marking percentage for the unsupplemented treatment was 108.5% compared with 109.9, 118.1 and 111.7% for the poor quality lucerne hay, good quality lucerne hay and oaten grain treatme

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29

Chiy, P. C., and C. J. C. Phillips. "Organic and inorganic nutrient utilization by ewes zero-grazed on pastures of varying sodium levels." Proceedings of the British Society of Animal Science 1995 (March 1995): 62. http://dx.doi.org/10.1017/s1752756200590590.

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Efficient nutrient utilization by livestock is a function of adequate intake of a given nutrient, its unimpaired release from the ingested feed and optimal availability to, absorption by, and retention in animals. Optimization of these functions to fulfil livestock physiological requirements is not often achieved under normal feeding conditions. A nutrient imbalance, especially of minerals, can initiate the onset of clinical disease such as parturient paresis and hypomagnesaemia. An additional difficulty of improper nutrient balance arises in diet formulation, since the addition of one nutrien

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30

Chiy, P. C., and C. J. C. Phillips. "Organic and inorganic nutrient utilization by ewes zero-grazed on pastures of varying sodium levels." Proceedings of the British Society of Animal Science 1995 (March 1995): 62. http://dx.doi.org/10.1017/s0308229600028300.

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Анотація:

Efficient nutrient utilization by livestock is a function of adequate intake of a given nutrient, its unimpaired release from the ingested feed and optimal availability to, absorption by, and retention in animals. Optimization of these functions to fulfil livestock physiological requirements is not often achieved under normal feeding conditions. A nutrient imbalance, especially of minerals, can initiate the onset of clinical disease such as parturient paresis and hypomagnesaemia. An additional difficulty of improper nutrient balance arises in diet formulation, since the addition of one nutrien

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31

Speijers, M. H. M., M. D. Fraser, V. J. Theobald, R. Fychan, and W. Haresign. "The performance of twin-bearing ewes and their progeny when offered red clover, lucerne and grass silages during late pregnancy." Proceedings of the British Society of Animal Science 2001 (2001): 119. http://dx.doi.org/10.1017/s1752756200005019.

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Feeding conserved forage in the form of silage to pregnant ewes in winter is common practice in agricultural systems in the UK. However, silage as a sole feed in late pregnancy is unlikely to meet the nutritional requirements of ewes carrying twin lambs, and supplementary feeding is usually required. Evidence suggests forage legumes such as red clover and lucerne offer great scope for improving the supply of protein to ruminants (Frame et al., 1998), and feeding silage prepared from these crops could potentially reduce the need for protein supplements. The aim of this experiment was to compare

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32

Wylie, A. R. G., and D. M. B. Chestnutt. "The effect of silage quality and frequency of feeding of supplementary concentrates on serum metabolite and insulin-like growth factor 1 (igf-1) concentrations in the late pregnant ewe." Proceedings of the British Society of Animal Production (1972) 1992 (March 1992): 25. http://dx.doi.org/10.1017/s0308229600021498.

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Concentrates for pregnant ewes are often increased incrementally during the last 6-8 weeks to as much as 50% of dry matter intake. Commonly, they are given as a single daily feed. Increasing the number of meals in which a concentrate allowance is given to cattle minimises diurnal fluctuation in ruminal activity with beneficial effects on dry matter intake (DMI).The current study was undertaken to determine if more frequent feeding of concentrates to ewes in late pregnancy affects levels of nutritionally-dependent serum IGF-1 and serum metabolites and to associate these with changes in ewe DMI

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33

Casao, A., G. A. María, and J. A. Abecia. "A preliminary study of the effects of organic farming on oocyte quality in ewe lambs." Zygote 25, no. 1 (December 7, 2016): 98–102. http://dx.doi.org/10.1017/s0967199416000393.

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SummaryThis study tested whether feeding Rasa Aragonesa ewes certified organic feed, from 15 days before mating until lamb weaning, improved oocyte quality and in vitro maturation (IVM) and fertilization (IVF) performances of the offspring. In a second experiment, ovaries from ewe lambs that were bred on an organic farm and were of the same breed were compared with those from conventionally bred animals. The number (± standard error of the mean) of healthy oocytes per ewe lamb did not differ significantly between organic (12.2 ± 3.3) and conventionally (13.6 ± 4.0) fed ewes. Ovaries from ewe l

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34

GONYOU, H. W., and A. R. COBB. "THE INFLUENCE OF TIME OF FEEDING ON THE TIME OF PARTURITION IN EWES." Canadian Journal of Animal Science 66, no. 3 (September 1, 1986): 569–74. http://dx.doi.org/10.4141/cjas86-063.

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Three trials, involving a total of 365 ewes, were conducted to determine the influence of the time when feed is available on the distribution of parturitions. In the initial trial, ewes were fed at either 0800, 1600 or 2400 h. Births were unevenly distributed throughout the day with 29% of parturitions occurring between 0400 and 0800 h (P < 0.01). The time of day when feed was available influenced the time of parturition (P < 0.01) with 64.9% of lambings occurring between 4 h prior to 8 h after feeding. In subsequent trials, feeding for 4 vs. 8 h, beginning in the morning, did not influe

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35

Bowen, M. K., P. M. Pepper, E. Patterson, I. McConnel, and D. J. Jordan. "Growth and carcass characteristics of cast-for-age Merino ewes fed sorghum-based feedlot diets." Australian Journal of Experimental Agriculture 47, no. 11 (2007): 1309. http://dx.doi.org/10.1071/ea06145.

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Grain feeding low bodyweight, cast-for-age (CFA) sheep from pastoral areas of eastern Australia at the end of the growing season can enable critical carcass weight grades to be achieved and thus yield better economic returns. The aim of this work was to compare growth and carcass characteristics for CFA Merino ewes consuming either simple diets based on whole sorghum grain or commercial feed pellets. The experiment also compared various sources of additional nitrogen (N) for inclusion in sorghum diets and evaluated several introductory regimes. Seventeen ewes were killed initially to provide b

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36

Salman, A. D. "Influence of feeding different types feed blocks as supplementary feed on the reproductive performance of Awassi ewes grazing cereal stubble." Iraqi Journal of Veterinary Medicine 29, no. 1 (June 30, 2005): 143–51. http://dx.doi.org/10.30539/iraqijvm.v29i1.882.

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This study was conducted to investigate the Influence of feeding different types feed blocks as supplementary feed on the reproductive performance of Awassi ewes grazing cereal stubble. These types were feed blocks enriched with cottonseed meal (CSM) or Brewers’ grain (BG) as sources undegradable protein (UDP). Ninety-six Awassi ewes (mean live weight 42.2 Kg), aged 3-4 years were allocated into three groups according to ewes live weight and body condition score.Group (C): Control (No Supplement) stubble grazing only.Group (FBC): FB enriched with CSM supplement plus stubble grazing.Group (FBB)

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37

Creed, J., T. G. McEvoy, J. J. Robinson, R. P. Aitken, R. M. Palmer, and I. Robertson. "The effect of pre-ovulatory nutrition on the subsequent development of superovulated sheep ova in an in vitro culture system." Proceedings of the British Society of Animal Production (1972) 1994 (March 1994): 82. http://dx.doi.org/10.1017/s0308229600026295.

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Superovulatory treatments for ewes are normally preceded by a period of priming. In a recent study involving two contrasting levels of feeding (0.6 versus 2.4 x maintenance), McEvoy et al (1993) observed that the higher level of feeding suppressed pre-ovulatory plasma progesterone concentrations and the subsequent early development and viability of fertilized ova. This finding suggests that there is a need to reconsider the recommendation, based on data for spontaneously-ovulating ewes, that ‘superovulated embryo donor ewes’ should be maintained on a high level of feeding during the period of

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38

Carty, J. D., P. J. Quinn, J. V. O'Doherty, J. J. Callan, B. Flynn, M. M. Muwalla, and T. F. Crosby. "A comparison of hay and silage with concentrates for twin bearing ewes." Proceedings of the British Society of Animal Science 1997 (1997): 180. http://dx.doi.org/10.1017/s1752756200596215.

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In Ireland, hay has been the traditional fodder offered to sheep during the winter period but the increasing tendency to house ewes before lambing has led to a substantial increase in the use of silage for this purpose. By-products are increasingly used as supplements to these forages, with little relative information available on their value. The objective of this experiment was to compare the effects of feeding grass silage and hay when supplemented with either barley, molassed sugar beet pulp or citrus pulp based concentrates to ewes in late pregnancy on feed intake, ewe weight and body con

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39

Schaub, Daniel, and Christian Posbergh. "PSI-5 Relationships of Feed Efficiency and Growth Estimated Breeding Values in Range Sheep." Journal of Animal Science 100, Supplement_4 (October 22, 2022): 23. http://dx.doi.org/10.1093/jas/skac313.033.

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Abstract United States sheep producers have selected range sheep for larger post-weaning weights through estimated breeding values (EBVs) for the past forty years. This has led to producers perceiving more feed being required than historical averages. Therefore, the objective of this study was to quantify the relationship between lamb growth estimated breeding values, feed intake, and feed efficiency. Eighty ewe lambs (40 Targhee and 40 Rambouillet) were weaned at four months of age and put onto a GrowsafeTM feeding system for a 42-day feeding trial with a 14-day adaption period. Ewe lambs wer

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40

Raeside, M. C., Z. N. Nie, M. Robertson, D. L. Partington, and R. Behrendt. "Plantain (Plantago lanceolata L.) and perennial ryegrass (Lolium perenne L.) as pregnancy and lactation feed for ewes joined at 8 months of age." Animal Production Science 54, no. 8 (2014): 1023. http://dx.doi.org/10.1071/an13205.

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Ewe nutrition during pregnancy and lactation is a key determinant of ewe and lamb performance. A paddock-scale field experiment in western Victoria, Australia, tested the hypothesis that grazing maiden ewes on plantain (Plantago lanceolata L.) from mid-pregnancy until lamb weaning (July 2010–January 2011) would increase ewe liveweight and condition score during this period, reduce worm egg counts, and increase lamb liveweights at birth, marking and weaning, relative to tetraploid perennial ryegrass (Lolium perenne L.), but that further increases would be achieved by offering a spatially arrang

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41

Bushara, Omer Mohammed, Salih Ahmed Babiker, Ikhlas Ahmed Nour, and Omer Mustafa Osman. "Birth Characteristics and Pre-Weaning Lamb Growth of Grazing Sudan Desert Ewes Supplemented in Different Reproductive Stages." European Journal of Agriculture and Food Sciences 3, no. 1 (February 23, 2021): 148–52. http://dx.doi.org/10.24018/ejfood.2021.3.1.189.

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This work was conducted to study effect of supplementary feeding at different reproductive stages on birth characteristics and pre weaning growth performance of lamb born to desert sheep (Hamari subtype) raised on natural range in West Kordofan State, Sudan. Ninety ewes of similar age and live weight were used in the study. Ewes were divided into three feeding group of 30 animals each. Group A was given concentrate supplement for one month before mating, one month during mating, and one month before lambing; group B was given the supplement for one month during mating and one month before lamb

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42

Bhatt, R. S., A. Sahoo, and S. A. Karim. "Replacement of mustard oil cake by urea in short-term strategic feeding of cull ewes to improve body condition and carcass traits." Animal Production Science 57, no. 5 (2017): 849. http://dx.doi.org/10.1071/an15178.

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Strategic short-term feeding of culled Malpura ewes (age >6 years, average liveweight 26.8 ± 0.96 kg) was aimed at improving their body condition and increase marketability of their carcass following slaughter. Randomly, 8 out of 40 ewes were slaughtered to study initial (Day 0) carcass traits and the remaining ewes were equally divided into two groups: mustard cake (Control) and urea. They were stall fed with ad libitum guar straw (Cyamopsis tetragonoloba) and concentrate mixture at 25 g/kg liveweight after 4 h of morning grazing in the pasture. The Control group was offered concentrate wi

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43

Cieslak, A., J. Kowalczyk, M. Czauderna, A. Potkanski, and M. Szumacher-Strabel. "Enhancing unsaturated fatty acids in ewe's milk by feeding rapeseed or linseed oil." Czech Journal of Animal Science 55, No. 1 (January 25, 2010): 496–504. http://dx.doi.org/10.17221/1704-cjas.

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The aim of our research was to evaluate whether rapeseed and linseed oils used as feed additives to ewe's diets allow to achieve the higher secretion of unsaturated fatty acids into milk with extended emphasis on the conjugated linoleic acid concentration. Two experiments were carried out on 6 lactating ewes in two independent 3 &times; 3 Latin square designs. In each feeding cycle the animals were subjected to one of the treatments: (1) without oil supplementation, (2) with 3.5% of rapeseed oil (RS) or linseed oil (LS), (3) with 7.0% of rapeseed oil or linseed oil. Feeding diets rich in m

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44

Cieslak, A., J. Kowalczyk, M. Czauderna, A. Potkanski, and M. Szumacher-Strabel. "Enhancing unsaturated fatty acids in ewe's milk by feeding rapeseed or linseed oil." Czech Journal of Animal Science 55, No. 11 (December 14, 2010): 496–504. http://dx.doi.org/10.17221/874-cjas.

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Анотація:

The aim of our research was to evaluate whether rapeseed and linseed oils used as feed additives to ewe's diets allow to achieve the higher secretion of unsaturated fatty acids into milk with extended emphasis on the conjugated linoleic acid concentration. Two experiments were carried out on 6 lactating ewes in two independent 3 &times; 3 Latin square designs. In each feeding cycle the animals were subjected to one of the treatments: (1) without oil supplementation, (2) with 3.5% of rapeseed oil (RS) or linseed oil (LS), (3) with 7.0% of rapeseed oil or linseed oil. Feeding diets rich in m

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45

Nakonechnyy, Y. V., and A. R. Demurova. "FEEDING LEVEL OF PREGNANT EWES AND ITS EFFECT ON THE MILK PRODUCTION OF TUSHINO SHEEP." Scientific Life 15, no. 6 (June 30, 2020): 872–78. http://dx.doi.org/10.35679/1991-9476-2020-15-6-872-878.

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Correction of feeding in the dry period is relevant, especially in the conditions of distant mountain keeping used to keep breeds in which metabolic processes are more intensive, and, accordingly, a greater amount of nutrients should be supplied with the feed. To establish the optimal amount of nutrients in the diets required for pregnant ewes, in the conditions of the distant mountain keeping of the North Caucasus in 2018, after the end of the breeding campaign, 120 ewes of the Tushino breed were selected, going to the third lambing. They were divided into 4 groups of 30 heads per each. The e

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46

Young, J. M., A. N. Thompson, M. Curnow, and C. M. Oldham. "Whole-farm profit and the optimum maternal liveweight profile of Merino ewe flocks lambing in winter and spring are influenced by the effects of ewe nutrition on the progeny's survival and lifetime wool production." Animal Production Science 51, no. 9 (2011): 821. http://dx.doi.org/10.1071/an10078.

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Profitability of sheep production systems in southern Australia is optimised at a stocking rate that provides adequate nutrition for breeding ewes and enables efficient utilisation of grown pasture and supplements. In this paper we used bio-economic modelling to develop optimum liveweight1 profiles for spring-lambing Merino ewes in different environments. The modelling included the impacts of the ewe liveweight profile on the production of the ewe and the survival and lifetime wool production of her progeny. Fifteen ewe liveweight profiles were analysed for each region to determine the profita

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47

Merrell, B. G., and J. J. Hyslop. "An evaluation of molassed sugar beet feed and distillers barley dark grains as concentrate supplements for out-wintered single-bearing hill ewes during late pregnancy." Proceedings of the British Society of Animal Production (1972) 1994 (March 1994): 206. http://dx.doi.org/10.1017/s0308229600027501.

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Supplementing hill ewes during late pregnancy with hay plus self-help feed-blocks is an established feeding system. However, there is considerable individual and seasonal variation in feed-block intake (Lippert and Milne, 1986) which can limit their effectiveness. This experiment evaluated an alternative system for supplementing hill ewes, during late pregnancy (6 weeks before lambing), based on molassed sugar beet feed (MSBF).One hundred and eighteen single-bearing Swaledale ewes were allocated to one of two treatments; 1. Control - supplemented with hay plus feed-blocks (HB), 2. Supplemented

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48

Ibrahim, Hadeel K. "Effect of Feeding Feed Blocks Enriched with Different Sources of Protein on the Performance of Awassi Ewes during Late Pregnancy, Suckling and Milking Stages." Iraqi Journal of Veterinary Medicine 32, no. 1 (June 30, 2008): 180–97. http://dx.doi.org/10.30539/iraqijvm.v32i1.778.

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Two experiments were conducted to investigate the effect of feeding feedblocks (FB) enriched with different sources of protein on the performance ofAwassi ewes during late pregnancy, suckling and milking stages. Experiment(1) was conducted to investigate the effect of feeding feed blocks enriched withdifferent sources of protein on the performance of Awassi ewes during latepregnancy. Eighty pregnant Awassi ewes (mean live weight 09.91±0.31 Kg),aged 3-5 years were allocated into four groups according to ewes’ live weight.First group (T1) fed ordinary high energy FB (OFB) + straw (ad-libitum). T

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49

Anderson, D., L. Anderson, D. J. Moot, and G. I. Ogle. "Integrating lucerne (Medicago sativa L.) into a high country merino system." Proceedings of the New Zealand Grassland Association 76 (January 1, 2014): 29–34. http://dx.doi.org/10.33584/jnzg.2014.76.2951.

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Abstract Farm systems in the dry sub-humid region of the Upper Waitaki predominantly graze merino ewes on extensive oversown and topdressed hill and high country. Smaller areas of flatter land are used to conserve winter forage crops, and grow supplementary feed and high quality pastures. The slow growth rate of merino lambs means they are traditionally retained on these improved pastures to finish in the following spring. In this system livestock demand peaks in the driest month of January and continues to be high through winter. Bog Roy is a farm that has changed this system and has establis

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50

Saul, Geoffrey, Gavin Kearney, and Dion Borg. "Pasture systems to improve productivity of sheep in south-western Victoria 2. Animal production from ewes and lambs." Animal Production Science 51, no. 11 (2011): 982. http://dx.doi.org/10.1071/an11010.

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Two pasture systems (Typical, Upgraded) were compared at five on-farm sites across south-western Victoria between 1990 and 1996. The Typical pasture treatment mimicked the pastures common in the region, with volunteer annual-based species fertilised with ~5 kg/ha.year phosphorus (P). The Upgraded pasture treatment was sown to phalaris, perennial ryegrass and subterranean clover using cultivars recommended for the particular area. Higher rates of fertiliser (13–25 kg/ha.year P) plus other nutrients were applied. Both pastures were set-stocked with breeding ewes. The stocking rate on the Typical

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