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Journal articles on the topic 'Sheep – Feeds'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Smolders, E. A. A., A. Steg, and V. A. Hindle. "Organic matter digestibility in horses and its prediction." Netherlands Journal of Agricultural Science 38, no. 3B (September 1, 1990): 435–47. http://dx.doi.org/10.18174/njas.v38i3b.16569.

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Organic matter (OM) digestibility of 53 feeds was estimated in horses, sheep and in vitro using rumen fluid. Feeds tested were: roughages (grass hay, fresh grass, wilted grass silage, forage maize and artificially dried roughage), compound feeds and compound feed ingredients including cereals. Technical merits of the chosen procedure for digestibility trials with horses are discussed. Horse digestibility data for forages were consistently lower than sheep data, with a variable fibre level effect. For compound feeds and compound feed ingredients horse digestibility was about comparable to sheep

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2

Cooper, S. D. B., I. Kyrizakis, and J. V. Nolan. "Diet selection in sheep: The role of the rumen environment in the selection of a diet from two feeds that differ in their energy density." British Journal of Nutrition 74, no. 1 (July 1995): 39–54. http://dx.doi.org/10.1079/bjn19950105.

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The effect of the energy density (ED) of feeds offered as a choice on the diet selection of sheep, and the relationship between the rumen environment and the diet selected from feeds of different ED were investigated in two experiments. In the first experiment two feeds, L and H, and their mixture M (3:1 w/w) were formulated. All feeds had similar calculated metabolizable protein: metabolizable energy (ME) ratios, but differed in ED (7·4, 8·1 and 10·1 MJ ME$sol;kg fresh feed for L, M and H respectively). The feeds were offered ad lib. either singly or in paired choices (L/M, L/H and M/H; n6 pe

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3

Chaudhry, Abdul Shakoor, and Ruba A. I. Mohamed. "Using fistulated sheep to compare in sacco and in vitro rumen degradation of selected feeds." Animal Production Science 51, no. 11 (2011): 1015. http://dx.doi.org/10.1071/an10273.

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Despite its beneficial role in almost all feed evaluation systems, the in sacco method is inconsistent and labour intensive in estimating the degradation of ruminant feeds. This study compared a rumen fluid-based in vitro method with the in sacco method to estimate degradation of 12 feeds comprising six concentrates and six grasses representing three fields during two seasons of winter and spring. Three feed groups (n = 4) were formed by using two grasses (one per season) and two concentrates. These feeds were incubated alongside blanks, in duplicate, for various hours either in sacco in three

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4

Kyriazakis, I., and J. D. Oldham. "Diet selection in sheep: the ability of growing lambs to select a diet that meets their crude protein (nitrogen × 6.25) requirements." British Journal of Nutrition 69, no. 3 (May 1993): 617–29. http://dx.doi.org/10.1079/bjn19930064.

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To test the proposition that sheep are able to select a diet that meets their crude protein (N × 6.25; CP) requirements, feeds L, A, B, C and H with the same energy content (11 MJ metabolizable energy/kg feed) but different CP contents (78, 109, 141, 172 and 235 g CP/kg fresh feed respectively) were formulated. In addition, feed U, which was feed L plus 21.4 g urea/kg (CP content 132 g/kg), was also made. The feeds were offered ad lib. either singly (n 4 per treatment) or as a choice between feed H and another feed (pairs LH, AH, BH, CH and UH; n 9 per feed pair) to individually penned Suffolk

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5

Pedernera, Mariana, Alejandra Vulliez, and Juan J. Villalba. "PSV-23 The influence of prior experience on dietary diversity in sheep." Journal of Animal Science 98, Supplement_4 (November 3, 2020): 217–18. http://dx.doi.org/10.1093/jas/skaa278.401.

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Abstract The objective of this study was to explore the influence of prior dietary experiences on intake and selection of novel feeds by lambs. Twenty lambs housed in individual pens were assigned to two groups (10lambs/group): Negative (NE) and Positive (PE) Experiences, in a split-plot design. Lambs were offered a nutritive novel feed followed by intra-ruminal infusions of lithium chloride-LiCl (150 mg/kg BW), a toxicant that causes food aversions (NE), or vehicle (water; PE). The feed was offered daily and infusions were delivered only when intake was ≥50g, when the protocol was repeated wi

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6

Lawrence, K. "Use of monensin sodium in sheep feeds." Veterinary Record 133, no. 20 (November 13, 1993): 508. http://dx.doi.org/10.1136/vr.133.20.508.

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7

Odoi, F. N. A., and E. Owen. "Offering barley straw to lambs near weaning as a means of increasing their subsequent readiness to eat straw." Proceedings of the British Society of Animal Production (1972) 1992 (March 1992): 169. http://dx.doi.org/10.1017/s0308229600022790.

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Sheep housed after grazing and offered straw as a feed show reluctance to eat for several days. Evidence exists to indicate that eating habits can be manipulated through a learning process, especially if manipulation occurs pre-weaning. Australian research by Arnold and Mailer (1977) with unpalatable pastures, and Green, Elwin, Mottershead, Keogh and Lynch (1984) with whole cereal grain, showed that sheep exposed to these feeds early in life were more willing to accept the feeds later in life than others not exposed.The present experiment investigated whether this observation was applicable to

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8

Kyriazakis, I., J. D. Oldham, R. L. Coop, and F. Jackson. "The effect of subclinical intestinal nematode infection on the diet seletion of growing sheep." British Journal of Nutrition 72, no. 5 (November 1994): 665–77. http://dx.doi.org/10.1079/bjn19940070.

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To test the hypothesis that subclinical gastrointestinal parasitism, associated with an impairment in N digestion and metabolism and a reduction in the voluntary feed intake (VFI), could affect the diet selection of sheep given a choice between two feeds that differed in their crude protein (CP) content, twenty-four Texel ×Scottish Blackface ewe lambs growing from 28 to 48 kg live weight (LWT) were given a daily dose of 2500 larvae of the intestinal nematode Trichostrongylus colubriformis; twenty-four similar lambs were used as uninfected controls. Six infected and six control lambs were given

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9

Hou, X. Z., D. H. Anderson, A. W. Illius, G. C. Emmans, and J. D. Oldham. "Long-term patterns of food selection in sheep growing towards maturity." Proceedings of the British Society of Animal Production (1972) 1989 (March 1989): 107. http://dx.doi.org/10.1017/s0308229600010989.

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Previous work at the Edinburgh School of Agriculture has suggested that sheep, like pigs, can select amongst foods which differ in protein:energy content according to their protein needs. The proportion of high protein feed which was selected by young sheep gradually diminished as the animals grew towards maturity over a period of measurement of 10 weeks (Cropper, 1988). The experiment reported here was designed to test this idea further by allowing sheep, initially differing in age and weight, to select between a high and low protein food (both available ad libitum) throughout their growth to

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10

McDonald, CL, JB Rowe, and SP Gittins. "Feeds and feeding methods for assembly of sheep before export." Australian Journal of Experimental Agriculture 34, no. 5 (1994): 589. http://dx.doi.org/10.1071/ea9940589.

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Sheep are assembled in Australian feedlots before export and given time to adapt to the pelleted diet they will receive on board ship. In Western Australia, lupins are normally included in the diet at levels up to 30% as a source of digestible energy which is low in starch. It is also common to feed hay during assembly. We examine the use of pellets based on barley and containing either lupins or virginiamycin to overcome problems of acidosis, and the importance of hay during assembly. There were 9 dietary treatments each with 3 pens of 30 sheep. The study was conducted over 8 days simulating

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11

Moss, Angela, and D. I. Givens. "Effect of feed type on methane produced by sheep." Proceedings of the British Society of Animal Production (1972) 1990 (March 1990): 28. http://dx.doi.org/10.1017/s0308229600018109.

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The loss of digestible energy from ruminant feeds as methane gas is often assumed to be about 0.08 of gross energy (GE) intake. This represents a significant loss of feed energy and recently concern has been expressed about the importance of methane as a gas which contributes to global warming. As methane is a gaseous loss, its measurement requires specialised equipment. Therefore the metabolisable energy (ME) content of many feedstuffs is estimated using a predicted methane energy loss.

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12

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.

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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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13

Emmans, G. C., M. R. Cropper, W. S. Dingwall, H. Brown, J. D. Oldham, and J. I. Harland. "Efficiencies of use of the metabolisable energy from feeds based on barley or sugar beet feed in immature sheep." Proceedings of the British Society of Animal Production (1972) 1989 (March 1989): 60. http://dx.doi.org/10.1017/s0308229600010539.

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The ARC (1980) energy system sees growth in the single dimension of energy retention (ER) which increases, with diminishing marginal efficiency, as ME intake increases. The quantitative relationship between ME intake and ER is predicted from q, the proportion of the gross energy which is metabolisable. An experiment on growing sheep on controlled feeding of different feeds was carried out to provide data suitable for testing ARC (1980) and other energy systems.Scottish Blackface wether sheep in single pens, entered the experiment at 25 kg liveweight (LW), when 11 were slaughtered. The remainde

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14

Bailes, K. L., J. W. Piltz, and D. M. McNeill. "In vivo digestibility of a range of silages in cattle compared with sheep." Animal Production Science 60, no. 5 (2020): 635. http://dx.doi.org/10.1071/an19178.

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Context Ensuring accuracy of feed testing is becoming increasingly important as livestock industries seek to maximise efficiency of producing animal products to meet world requirements. Aim Twenty-four silages were fed to sheep and cattle to test the validity of using sheep-derived digestibility estimates for cattle. Method The silages tested included temperate and subtropical forages, and differed in level of maturity and weed contamination at harvest: several of the forage crops were grown with irrigation. In vivo comparisons were made for digestibility of dry matter (DMD), organic matter (O

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15

Mahgoub, Osman, Isam T.Kadim, Hamza A. Babiker, and Mohammed N. Al-Kindi. "The Influence of Diets Containing Phenols and Condensed Tannins on Protein Picture, Clinical Profile and Rumen Characteristics in Omani Sheep." Sultan Qaboos University Journal for Science [SQUJS] 19, no. 2 (February 1, 2015): 8. http://dx.doi.org/10.24200/squjs.vol19iss2pp8-16.

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A study was carried out to investigate the effects of feeding low quality non-conventional feeds (NCF) containing phenols and condensed tannins on health and performance characteristics in Omani sheep. Twelve Omani sheep were fed one of two base roughages, urea-treated palm frond (UTPF) or Rhodesgrass hay, (RGH) plus a commercial concentrate for 63 days. Haematological, serum biochemical and urine analyses were used to assess sheep health. Serum protein fractions were measured using electrophoresis. Urea-treated palm frond contained higher levels of polyphenols and condensed tannins and fiber

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16

Melese, Gashu, Tamir Berhan, and Urge Mengistu. "Effect of Supplementation with Non-Conventional Feeds on Feed Intake and Body Weight Change of Washera Sheep Fed Urea Treated Finger Millet Straw." Greener Journal of Agricultural Sciences 4, no. 2 (March 15, 2014): 067–74. http://dx.doi.org/10.15580/gjas.2014.2.1202131003.

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17

Pepeta, Bulelani Nangamso, Mehluli Moyo, Abubeker Hassen, and Ignatius Verla Nsahlai. "Stocking Rate Has No Confounding Effect on the Use of Internal and Inert Markers to Predict Botanical Composition, Diet Quality, Degradability and Passage Rate Kinetics in Sheep." Animals 10, no. 12 (November 27, 2020): 2232. http://dx.doi.org/10.3390/ani10122232.

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This study investigated if there is any confounding effect of stocking rate on the use of internal markers to determine and predict the dietary ingredient composition, dry matter intake (DMI) and digestibility of diets consumed by sheep. Fifteen sheep were randomly allocated to stocking rate treatments of one (SR1), two (SR2), four (SR4) and eight (SR8) sheep per pen (space allowance: 31.04 m2, 15.52 m2, 7.76 m2 and 3.88 m2 per sheep, respectively) and fed ad libitum maize stover, sorghum stover and veld hay by supplying 110% of previous day’s intake. Sheep were rotated across the treatments i

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18

AKINLADE, J., J. A. OLANITE, and M. A. BAMIKOLE. "DRY MATTER DEGRADATION CHA RACTERISTICS OF RICE STOVER WITH DIFFERENT PROPORTIONS OF Ficus capensis OR Alchornea cordifolia IN RUMEN FISTULATED SHEEP, GOATS OR CATTLE." Nigerian Journal of Animal Production 28, no. 2 (January 4, 2021): 174–81. http://dx.doi.org/10.51791/njap.v28i2.1902.

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Rumen dry matter degradation characteristics (soluble fraction, degradable fraction, rate of degradation and effective degradability) of leaves of two browse species (Alchornea cordifolia, Ficus capensis) and rice stover and their varying proportions (10, 20 or 30% of each browse: crop residue mixture) were evaluated in rumen fistulated West African Dwarf sheep and goats and Bunaji cattle. The forages differed (P<0.05) in soluble fraction (a) rate of degradation (c) and effective degradability (ED) but did not differ in the degradable fraction (b). Rice stover bad the highest rate of degrad

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19

Jarzynowska, Anna, and Ewa Peter. "The effect of adding herbs to the winter diet on the fatty acid profile of the lipid fraction of sheep milk." Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego 13, no. 4 (December 28, 2017): 43–54. http://dx.doi.org/10.5604/01.3001.0013.5201.

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The study was carried out on bulk milk samples collected at two-week intervals during the winter (February-April) and individually from ewes at the end of the experiment. The milk was obtained from ewes of the coloured variety of Polish Merino, housed indoors and fed conserved bulky feeds and a mixture of concentrate feeds. Three diet groups were established: group I – control (without the addition of herbs to the concentrate feed) and groups II and III, in which an herbal mixture was added to the concentrate feed in the amount of 10 and 20 g/sheep/day, respectively. The effect of the herb sup

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20

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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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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21

Jarzynowska, Anna, and Ewa Peter. "The influence of the addition of herbs to the winter diet of sheep on the yield of bundz rennet cheese and its nutritional value." Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego 14, no. 1 (March 29, 2018): 39–51. http://dx.doi.org/10.5604/01.3001.0013.5196.

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The study was carried out on samples of raw sheep milk and bundz rennet cheese produced from it. The milk was obtained from ewes of the coloured variety of Polish Merino, from February to April, housed indoors and fed with preserved bulky feed and a mixture of concentrate feeds. Three groups were formed for the experiment: group I – control, fed without the addition of herbs to the concentrate feed, and groups II and III, in which an herb mixture was added to the concentrate feed in the amount of 10 and 20 g/sheep/day, respectively. Six experimental batches of bundz rennet cheese were made fro

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22

Paya, H., A. Taghizadeh, H. Janmohamadi, and G. A. Moghadam. "The relationship between in vitro and in situ dry matter disappearance of some Iranian feedstuffs in sheep." Proceedings of the British Society of Animal Science 2007 (April 2007): 210. http://dx.doi.org/10.1017/s175275620002113x.

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Ration formulation systems require information on nutrient requirements of the animal and reliable values for rumen degradable and undegradable fractions of feed ingredients. The in situ nylon-bag technique is widely used to characterize the disappearance of feeds from the rumen (Woods et al., 2002). The objective of this study was determining of relationship between in vitro and in situ dry matter disappearance.

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Abreha, Hagos H., Getachew Animut, Aklilu Hailemichael, Dawit G. Tedla, and Fsahatsion H. Baragabr. "Effect of Commercial and Non-conventional Feeds, Leaves of Indigenous and Improved Multipurpose Tree Supplementation on Feed Intake, Digestibility and Growth Performance of Sheep." Open Agriculture Journal 13, no. 1 (December 31, 2019): 207–14. http://dx.doi.org/10.2174/1874331501913010207.

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Background: Acute shortage of feed and very poor quality of the available feeds during the dry season are the prime limiting factors for increasing the production and productivity of small ruminants in most agroecological zones of Ethiopia. Thus, the study evaluated the effect of concentrate mixture of wheat bran and Sesame seed cake (T1), Atella (T2), Faidherbia albida (T3) and Sesbania sesban leaves (T4) on feed intake, digestibility, body weight change and economical profitability of local sheep. Methods: Twenty-four yearling intact local male sheep with mean Initial Body Weight (IBW) of 18

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24

AL-Shami, Salah, I. Ap Dewi, and H. Omed. "Effects of supplementary feed and competition with Cambridge ewes on the browsing behaviour of Welsh Mountain sheep." Proceedings of the British Society of Animal Science 1998 (1998): 100. http://dx.doi.org/10.1017/s0308229600033134.

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Trees and shrubs play an important role in increasing feed supplies to animal production in many tropical systems. These feeds sources can be browsed directly by animals or can be cut and carried (Ivory, 1989). Understanding the behaviour of domestic animals is an important tool in improving their management and production (Malechek and Provenza, 1983). An experiment was conducted to examine the effect of between-breed competition on the browsing behaviour of Welsh Mountain sheep, with alternative sources of supplementary feed using Cambridge ewes as the competing breed.

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25

Cropper, M. R., D. P. Poppi, and A. M. Nicol. "Growth of lambs given different allowances of digestible crude protein and metabolisable energy." Proceedings of the British Society of Animal Production (1972) 1992 (March 1992): 174. http://dx.doi.org/10.1017/s0308229600022844.

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In a market where high levels of fat on lamb carcases are not favoured, the supposition that a lamb, given adequate feeding, will grow protein preferentially to gaining lipid, holds interest. However, this idea runs counter to the evidence that body composition is not manipulable in sheep. Therefore, an experiment was undertaken to implement extreme treatments of protein and energy supply to determine to what extent the contrasting views on body composition changes in growing lambs are justified.Seventy-two Coopworth ram lambs (mean liveweight, (LW) 30.4, s.d. 1.1 kg) were given one of the thr

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Kyriazakis, I., and J. D. Oldham. "The ability of growing sheep to select a diet that meets their protein requirements." Proceedings of the British Society of Animal Production (1972) 1992 (March 1992): 23. http://dx.doi.org/10.1017/s0308229600021474.

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Whilst our previous work (Hou et al, 1991) has shown that sheep will make structured selections amongst pairs of feeds offered as a choice, we have not been able to relate these selections to the animals requirements as estimated by relative performance as single feeds. Also the nature of crude protein in diets offered as a choice has not been used as a variable.The objective of the experiment was to develop the proposition that growing sheep, when given a choice between a suitable pair of foods, will select a diet that meets their protein requirements by using pairs of foods to be given as a

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27

Ilian, M. A., M. A. Razzaque, and A. J. Salman. "Unconventional feeds for sheep: Some aspects of rumen and blood biochemistry." Biological Wastes 24, no. 3 (January 1988): 187–97. http://dx.doi.org/10.1016/0269-7483(88)90061-4.

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28

Thomas, Dean T., Allan J. Rintoul, and David G. Masters. "Increasing dietary sodium chloride increases wool growth but decreases in vivo organic matter digestibility in sheep across a range of diets." Australian Journal of Agricultural Research 58, no. 11 (2007): 1023. http://dx.doi.org/10.1071/ar07032.

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For 8 weeks, 64 Merino wethers, 18 months of age, were individually penned and offered 1 of 16 treatment feeds (n = 4). The 16 feeds were formulated to contain levels of added sodium chloride (0, 7, 14, 21%) and levels of organic matter digestibility (55, 62, 69, 76%), in a 4 × 4 factorial design. The treatment feeds were offered ad libitum for 7 weeks and at maintenance for the final week. Clean wool growth, corrected for digestible organic matter intake, increased by 16, 18 and 27% as added sodium chloride was increased (7, 14, and 21%). The increase in wool growth was similar for diets at a

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29

Ahmed, S., MRH Rakib, and MA Hemayet. "Effect of Total Mixed Ration Based Complete Pellet Feed on the Performances of Stall Fed Native Sheep." SAARC Journal of Agriculture 18, no. 2 (January 4, 2021): 157–66. http://dx.doi.org/10.3329/sja.v18i2.51116.

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A complete pellet feed was developed using 40 % roughage (Rice straw) and 60 % concentrate (Rice polish 50 %, Maize crush 16 %, Soybean meal 20 %, Molasses 10 %, Salt 2 %, DCP 1 %, Vitaminmineral premix 0.5 %, Pellet binder 0.5 %) for commercial sheep production under stall feeding system. To know the effect of complete pellet feed on animal performances, both on-station and on-farm trials were conducted in growing sheep. The results of the experiment demonstrated that in the traditional system of rearing; only 22.42 g daily weight gain was observed. While, feeding of complete pellet feed achi

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ARMOUR, JENNIFER, and BURTON W. BLAIS. "Cloth-Based Hybridization Array System for the Detection and Identification of Ruminant Species in Animal Feed." Journal of Food Protection 69, no. 2 (February 1, 2006): 453–58. http://dx.doi.org/10.4315/0362-028x-69.2.453.

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A cloth-based hybridization array system for the detection and identification of material derived from several ruminant species (cattle, sheep, goat, elk, and deer) in animal feeds has been developed. Primers targeting conserved mitochondrial DNA sequences amplified ruminant DNA in a universal PCR, and the digoxigenin-labeled amplicons were hybridized with an array of species-specific oligonucleotide capture probes on a polyester cloth support. The hybridized amplicons were detected on the cloth by sequential reactions with antidigoxigenin antibody–peroxidase conjugate and chromogenic substrat

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Woods, V. B., A. P. Moloney, F. P. O'Mara, F. Mulligan, and M. J. Kenny. "The effect of animal species and level of consumption by cattle on in vivo digestibility of concentrate ingredients." Proceedings of the British Society of Animal Science 1998 (1998): 77. http://dx.doi.org/10.1017/s0308229600032906.

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It has been suggested that cattle have a greater ability to digest fibrous feeds and a lower ability to digest non-fibrous feeds than sheep (Mc Donald et al., 1995). This statement applies mainly to forages and few direct comparisons have been conducted using concentrate ingredients. The digestibility of concentrate ingredients may be influenced by the level of consumption since an increase in intake of a complete diet resulted in a decrease in digestibility (El Khidir and Vestergaard Thomsen, 1983). The aims of this study were (a) to determine the effect of level of consumption by cattle and

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32

MURPHY, JOHANNA, JENNIFER ARMOUR, and BURTON W. BLAIS. "Cloth-Based Hybridization Array System for Expanded Identification of the Animal Species Origin of Derived Materials in Feeds." Journal of Food Protection 70, no. 12 (December 1, 2007): 2900–2905. http://dx.doi.org/10.4315/0362-028x-70.12.2900.

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A cloth-based hybridization array system (CHAS) previously developed for the detection of animal species for which prohibited materials have been specified (cattle, sheep, goat, elk, and deer) has been expanded to include the detection of animal species for which there are no prohibitions (pig and horse) in Canadian and American animal feeds. Animal species were identified by amplification of mitochondrial DNA sequences by PCR and subsequent hybridization of the amplicons with an array of species-specific oligonucleotide capture probes immobilized on a polyester cloth support, followed by an i

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33

Jones, R. J., J. H. F. Meyer, F. M. Bechaz, M. A. Stoltz, B. Palmer, and G. van der Merwe. "Comparison of rumen fluid from South African game species and from sheep to digest tanniniferous browse." Australian Journal of Agricultural Research 52, no. 4 (2001): 453. http://dx.doi.org/10.1071/ar00107.

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The hypothesis that South African game animals that use browse containing condensed tannins (CT) could have rumen microbial populations better able to ferment tanniniferous forages was explored. Rumen fluid (RF) from a range of browsing ruminants was used to ferment tanniniferous forages in vitro and the results were compared with the values obtained with rumen fluid from sheep. Leaves of the shrub legumes Leucaena leucocephala, L. pallida, L. trichandra, Calliandra calothyrsus,Gliricidia sepium, and Acacia boliviana were used as substrates. In vitro digestibility of dry matter (IVDMD) and nit

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Hurst, D., D. L. Romney, and A. H. Murray. "Evaluation of the potential of short term intake rate (STIR) to predict effects of chop length on in vivo parameters in sheep." Proceedings of the British Society of Animal Science 1999 (1999): 105. http://dx.doi.org/10.1017/s175275620000260x.

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Parameters from in vitro gas production and in situ degradability are often used to predict digestibility and intake in vivo. However, these methods use dried ground feed samples and cannot be expected to estimate the effect of changes in physical form or particle size. Previous work (Romney and Gill 1998) has indicated that short term intake rate (STIR) values showed potential to rank a variety of feeds in terms of their ad libitum dry matter intake, rate of passage and digestibility. Since STIR values are determined on feeds “as offered” it is likely they will reflect the effects of physical

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35

Sein, T., and J. R. Todd. "Investigations into the use of indicator methods of estimating the digestibilities of feeds by ruminant animals." Journal of Agricultural Science 110, no. 2 (April 1988): 315–20. http://dx.doi.org/10.1017/s002185960008134x.

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SummaryThis paper describes a comparison of acid insoluble ash (AIA) and acid detergent lignin (ADL) ratio techniques for estimating digestibility with the conventional total collection method using sheep fed a range of feeds. In only two of 17 digestibility trials were the results obtained by AIA ratio techniques significantly different from those obtained by the total collection method. In the case of ADL no significant differences occurred between the results obtained by the ratio technique and total collection method.In a trial using sheep in metabolism cages the AIA and ADL contents of fa

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Pent, Gabe J. "192 Towards Year-Round Grazing in the Southeastern U.S." Journal of Animal Science 98, Supplement_2 (November 1, 2020): 67. http://dx.doi.org/10.1093/jas/skz397.153.

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Abstract Winter feeds costs for small ruminants exceeds 50% of the total cost of most small ruminant production systems in the Southeastern U.S. Keeping these feed costs low is one of the most effective and time-tested ways to improve farm profitability. While maintaining an appropriate stocking rate will be critical for sustaining long-term farm productivity, a suite of other management practices is available to assist in this objective. Installing appropriate fence and watering system infrastructure for managing grazing will be critical for improving harvest efficiency and stockpiling forage

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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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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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Whitelaw, FG, JS Milne, ER Orskov, R. Stansfield, and MF Franklin. "Urea metabolism in sheep given conventional feeds or nourished by intragastric infusion." Experimental Physiology 75, no. 2 (March 1, 1990): 239–54. http://dx.doi.org/10.1113/expphysiol.1990.sp003398.

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Ilian, M. A., M. A. Razzaque, and A. J. Salman. "Unconventional feeds for sheep: Effects on performance and meat quality and composition." Biological Wastes 24, no. 2 (January 1988): 115–25. http://dx.doi.org/10.1016/0269-7483(88)90054-7.

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Sarker, AK, MR Amin, MA Hossain, MS Ali, and MA Hashem. "Present Status of Organic Sheep Production in Ramgoti Upazila of Lakshmipur District." Journal of Environmental Science and Natural Resources 10, no. 2 (November 29, 2018): 95–103. http://dx.doi.org/10.3329/jesnr.v10i2.39018.

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The experiment was conducted to investigate the present status and potentialities of organic sheep production in Lakshmipur district of Bangladesh. Data were collected through an interview schedule personally from 30 respondents in 3 villages of Ramgoti Upazila who were involved in sheep production. Parameter studied were origin, feeds and fodder, breeding, health care, living condition of livestock and factors related to organic sheep production. All sheep was indigenous. 60 per cent farmers used roadside grass and 40% cultivated and roadside grass. Most of the farmers used mixed feed which w

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Debele, Selamawit, and Matiwos Habta. "Sheep and goat production practice in agroforestry systems of Gedio Zone, Ethiopia." International Journal of Environment 4, no. 2 (June 3, 2015): 296–307. http://dx.doi.org/10.3126/ije.v4i2.12658.

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The study was conducted to describe sheep and goat production practice in three Agro-ecological Woredas of Gedio zone, southern Ethiopia. A set of semi-structured questionnaire was used to collect information from 120 sheep and goat owners based on single-visit-interviews. 32.6% of them participate in crop production, 56.5% of them involved in both animal and crop production and 5% of them involved in crop production, animal production and off farm activity. Sheep flock in the study sites were significantly different; and were 5.63, 6.97 and 3.4 in Wenago, Dilla and Kochera sites, respectively

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Warmington, B. G., G. F. Wilson, and T. N. Barry. "Voluntary intake and digestion of ryegrass straw by llama × guanaco crossbreds and sheep." Journal of Agricultural Science 113, no. 1 (August 1989): 87–91. http://dx.doi.org/10.1017/s0021859600084653.

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SUMMARYThe voluntary feed and water intakes of five llama × guanaco crossbreds (New World camelids) and five sheep, and their abilities to digest various feed components and to utilize nitrogen, were compared using a diet of threshed ryegrass straw in New Zealand in 1987.The camelids ate more than the sheep, but intakes were similar relative to metabolic live weight (mean 37·6 g dry matter/kg W0·75 per day). They drank 0·62 times as much water as sheep per kg W0·75, and 0·57 times as much per g DM intake (P < 0·05). Mean apparent digestibilities of dry matter (47.7%), energy (41·6%) and cel

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Vipond, J. E., G. Horgan, and D. Anderson. "Estimation of food intake in sheep by blood assay for lithium content following ingestion of lithium labelled food." Proceedings of the British Society of Animal Science 1995 (March 1995): 16. http://dx.doi.org/10.1017/s0308229600027860.

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Current rationing systems for sheep and cattle aim to balance a deficit in a basal roughage diet by giving group-fed animals a fixed amount of supplementary food. Assumptions are made that both the intake of basal diet and supplementary feed are average values. Coefficients of variation in individual intake of supplementary feeds of 16-36% have however been observed (Foot and Russel, 1973; Foot et al, 1973) and this variation may be larger (67-107%) where supplements are available as feed blocks (Kendall et al, 1983; Ducker et al, 1981).Recent work on the selection of feed ingredients by sheep

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NSAHLAI, I. V., N. N. UMUNNA, and P. O. OSUJI. "Complementarity of bird-resistant and non-bird-resistant varieties of sorghum stover with cottonseed cake and noug (Guizotia abyssinica) cake when fed to sheep." Journal of Agricultural Science 130, no. 2 (March 1998): 229–39. http://dx.doi.org/10.1017/s0021859697005182.

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A study was conducted to examine whether oilseed cakes (cottonseed cake (CSC) or noug (Guizotia abyssinica) cake (NSC)) are complementary to the bird-resistant (BR) and non-bird-resistant (NBR) varieties of sorghum stover and whether sheep select against morphological fractions containing high concentrations of tannins or proanthocyanidins (PA). Either 24 (growth study) or 16 (metabolism study) Ethiopian Menz sheep were used in a randomized complete block design to study the interaction of variety of sorghum stover with type of oilseed cake on feed selection, intake, digestibility, microbial p

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Hogan, JP, PM Kennedy, CS McSweeney, and AC Schlink. "Quantitative studies of the digestion of tropical and temperate forages by sheep." Australian Journal of Experimental Agriculture 29, no. 3 (1989): 333. http://dx.doi.org/10.1071/ea9890333.

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Studies of the digestion by sheep of tropical grasses Digitaria decumbens and Setaria sphacelata and the temperate grass Lolium perenne grown at 27.5�S. latitude plus a clover Trifolium resupinatum grown in southern Australia are reported. There were no major differences between forages in the site of organic matter digestion, in protein flow from the stomach, in concentrations or proportions of rumen volatile fatty acids and in chewing behaviour between these data and the values generally reported for temperate forages of similar chemical composition and digestibility. However rumen ammonia c

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Ruzic-Muslic, D., M. P. Petrovic, and Z. Bijelic. "Undegradable protein: Important factor in balancing of diets for fattening lambs." Biotehnologija u stocarstvu 27, no. 3 (2011): 473–84. http://dx.doi.org/10.2298/bah1103473r.

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Although sheep breeding in our country mainly had extensive character, there is still room for implementation of the new concept of expression of nutritional value of proteins, primarily in fattening of lambs. For the purpose of maximum use of the genetic potential of high-yielding meat/fattening sheep breeds, share of undegradable protein in diet must be taken into consideration, since high protein requirements of such animals cannot be satisfied by microbial protein synthesis from usual protein and energy sources. Therefore, in contemporary, science based systems for assessment of protein va

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Epifanova, I., and V. Epimakhov. "Intake mercury lead and arsenic with feeds and their accumulation (bioconcentration) in cattle and sheep organism." Bulletin of Science and Practice 5, no. 3 (March 15, 2019): 173–86. http://dx.doi.org/10.33619/2414-2948/40/23.

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When managing livestock in technologically polluted areas to assess and prevent the negative impact of feed on farm animals, to obtain products that meet sanitary and hygienic safety requirements, it is important to monitor constantly the levels of pollution by main ecotoxicants in all parts of the trophic chain soil — feed — animal body — livestock production. If acceptance contamination levels are higher than it is required, it is necessary to take measures for contaminants decreasing in final livestock products. A review of the study of intake mercury, lead and arsenic with feeds in cattle

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Jarzynowska, Anna, and Ewa Peter. "The influence of the addition of herbs to the summer diet of sheep on the yield of bundz rennet cheese and its nutritional value." Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego 14, no. 2 (June 28, 2018): 37–48. http://dx.doi.org/10.5604/01.3001.0013.5141.

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The study was carried out on samples of raw sheep milk and bundz rennet cheese produced from it. The milk was obtained from ewes of the Koluda prolific dairy breed, from June to August. The sheep were housed indoors and fed with alfalfa green forage and a mixture of concentrate feeds. Three groups were formed for the experiment: group I – control, fed without the addition of herbs to the concentrate feed, and groups II and III, in which an herb mixture was added to the concentrate feed in the amount of 10 and 20 g/sheep/day, respectively. Six experimental batches of bundz rennet cheese were ma

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Bagamaev, Bagama, Eduard Gorchakov, Natalia Fedota, Nikolai Gvozdetsky, Nadegda Taranuha, and Natalia Kolomysova. "The balanced diet during the stall period as sheep dermatitis preventing factor." E3S Web of Conferences 164 (2020): 06036. http://dx.doi.org/10.1051/e3sconf/202016406036.

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The intensity and direction of the living organism’s metabolic processes determine the growth rate, development, nutrients synthesis, as well as the reproductive body function and the biosynthesis of proteins, fats and carbohydrates in the form of feedstuff and raw materials. The higher animals’ productivity, the more intensive are metabolic processes. The living bodies’ metabolism proceeds with a certain speed and at the same time contrariwise, but with accurate coherence and interaction due to the participation of “life regulators”, enzymes, which represent the specific proteins, the activit

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Cropper, M., M. D. Lloyd, and G. C. Emmans. "Nutritional manipulation of lamb growth and its effect on body composition and carcase quality." Proceedings of the British Society of Animal Production (1972) 1986 (March 1986): 71. http://dx.doi.org/10.1017/s0308229600015804.

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The growth rate and body composition of lambs depend on their rate of feed intake and the composition of the feed given. The purpose of the experiment described here was to test predictions of the growth and composition of lambs given feeds of two protein contents at three levels of feeding.73 Scottish Blackface wethers were abruptly weaned at 49 days of age and an average live weight (LW) of 18 (sd 2.2) kg. Six, chosen to cover the range in initial liveweight, were killed and those remaining were put into individual pens and fed in one of six ways. Two feeds with 140g CP/kg fresh weight (FW),

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