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Dissertations / Theses on the topic 'Sheep – Feeds'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Hosking, Brenton John. "Evaluation of nutrient intake and digestion in grazing sheep receiving supplements : thesis submitted for the degree of Doctor of Philosophy." Title page, summary and contents only, 1987. http://web4.library.adelaide.edu.au/theses/09PH/09phh826.pdf.

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Includes bibliographical references (leaves 290-309) Investigates aspects of the intake and utilization of barley grain and grain legume supplements by sheep fed low quality pasture hay and when grazing mature summer pastures.

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2

Nolte, Joubert van Eeden. "An evaluation of degradable protein and nonprotein nitrogen on intake and digestion by Dohne merino sheep fed wheat straw." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51597.

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Thesis (MSc)--Stellenbosch University, 2000.<br>ENGLISH ABSTRACT: South Africa, like many other developing countries throughout the world, has a rapidly growing human population, resulting in a consequent increased demand for food. Ironically, this increased food supply has to be produced on a smaller area of available agricultural land, which means that agricultural production processes have to become more efficient. Furthermore, the majority of the people in these countries are unschooled and poverty is a common phenomenon. Therefore, animal scientists are faced with the challenge and t

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3

Long, Amanda Marie. "Impacts of Flax on Female and Male Reproductive Traits When Supplemented Prior to Breeding in Sheep." Thesis, North Dakota State University, 2018. https://hdl.handle.net/10365/29877.

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Two experiments determined the effects of flaxseed supplementation on reproductive parameters in sheep. In experiment one, 240 multiparous Rambouillet ewes were assigned to one of two treatments: basal ration alone or basal ration with a Flaxlic® Sheep Tub offered over 35 days. Serum was collected weekly for progesterone (P4). Flaxseed supplementation did not improve progesterone concentration or reproductive parameters (P ≥ 0.26). In experiment two, 120 Rambouillet ram lambs were assigned to one of two treatments: basal ration alone or basal ration with a Flaxlic® Sheep Tub offered over 112 d

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4

Mey, Mahamat. "WEIGHT CHANGE, INTAKE AND DIGESTION OF ALFALFA HAY AND WHEAT STRAW BY KARAKUL, RAMBOUILLET AND ST. CROIX." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275269.

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5

Mavimbela, David Thele. "The nutritional value of broiler litter as a feed source for sheep during periods of feed shortage." Thesis, Pretoria : [s.n.], 1999. http://upetd.up.ac.za/thesis/available/etd-12152006-153846.

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6

Zhang, Runhou 1963. "Manipulating fatty acids in sheep milk." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102236.

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Four studies were conducted to investigate some factors affecting milk fatty acid composition of dairy ewes. The first study was performed to determine the influence of freezing temperatures and storage time on ovine milk composition and cheese making. The other three experiments were conducted to examine the effects of dietary added fats with different profiles of fatty acids from canola, sunflower and flaxseeds on animal performance, nutrient utilization, milk yield and cheese making. The main emphasis was on fatty acid composition, particularly CLA and Omega-3 fatty acids, in milk and chees

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7

Baah, John. "Effect of particle size distribution in the reticulo-rumen, omasum and abomasum of sheep on voluntary intake and digestibility of forages." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/28887.

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This study was designed to provide information on some of the factors affecting voluntary consumption and digestibility of forages by sheep. A wet sieving procedure was used to determine particle size distribution in the reticulo-rumen, omasum and abomasum of sheep fed 100 % prebloom alfalfa or 100 % second-cut Altai wild ryegrass hays or mixtures of these with tall wheatgrass or Altai wild ryegrass straws. The study also compared second-cut Altai wild ryegrass and prebloom alfalfa as components in an all forage diet for sheep. Each diet was fed ad libitum to eight Romanov x Western whiteface

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8

Aucamp, Barend Bernadus. "Byvoeding van skape op aangeplante weiding in 'n mediterreense klimaat." Thesis, Port Elizabeth Technikon, 2001. http://hdl.handle.net/10948/44.

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Tydens embrio ontwikkeling groei weefsel deur selvermeedering, maar soos wat soogdiere volwassendheid nader vind groei net plaas deur sel vergroting. Volwassenheid word beskou as wanneer spiergroei ‘n maksimum bereik. Groei sluit die neerlegging van vet in, maar spiermassa is van primêre belang. Die groeikurwe (Fig 1) waarin massatoename teenoor ouderdom vergelyk word, volg ‘n sigmoidale kurwe (Owens et al, 1993). Onder ideale toestande is die groeitempo van lammers relatief konstant van kort na geboorte totdat die helfte van volwassemassa bereik word, waarna dit geleidelik afneem tot volwasse

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9

Wegeler, Claudia. "Transport von HCO₃⁻ am isolierten Psalterepithel des Schafes : Charakterisierung und Einfluss der Fütterung." Berlin mbv, 2007. http://d-nb.info/988716968/04.

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Zugl.: Berlin, Freie Univ., Diss., 2007<br>"The aim of this work was to characterize the HCO₃⁻ Transport of the omasum and to look for possible alterations after the change from hay to concentrate feeding."

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10

Ilse, Breanne Rose. "Effects of Linseed Meal on Growth and Reproductive Performance in Ruminants." Thesis, North Dakota State University, 2011. https://hdl.handle.net/10365/28744.

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Linseed meal (LSM) was fed to ovariectomized ewes exposed to estradiol 17-? (E2) implants over time, and LSM was supplemented to beef cows during late gestation and early lactation to evaluate the estrogenic potential of the phytoestrogen secoisolariciresinol diglycoside (SDG) found in LSM. Forty-eight ovariectomized ewes were fed a diet containing 12.5% LSM for 0, 1, 7, or 14 d and implanted with estradiol-17? (E2) for 0, 6, or 24 h before tissue collection. Uterine cellular proliferation, vascularity, and the expression of the angiogenic factors and their receptors were recorded.

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11

Visagie, Willem. "The digestibility and degradability of feeds and protein sources in Dohne merino sheep and boer goats." Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5303.

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Thesis (MScAgric (Animal Sciences))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: The objective of this study was to evaluate Dohne Merino sheep and Boer goats in terms of the degradable parameters of a high-fibre diet, a low-fibre diet and two vegetable protein sources commonly used in South Africa. Differences between species were evaluated following the potential differences within species. The feedstuffs used were those for the following diets: low-fibre diet (LF); high-fibre diet (HF); sunflower meal (SFM) oilcake; and soybean meal (SBM) oilcake. In the first trial, the dig

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12

Takagi, Hiroshi. "Effects of manipulating dietary cation-anion balance on calcium metabolism in sheep." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75683.

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Experiments were conducted to investigate the effect of reducing dietary anion-cation balance (AC-balance), defined as meq $ sp circ$(Sodium + Potassium)-(Chloride + Sulfur) S, on calcium (Ca) metabolism. Reducing the dietary AC-balance from +314 to $-22$ (meq kg$ sp{-1}$ dry matter (DM)) did not affect plasma Ca level but reduced Ca retention mainly due to a 10-fold increase in urinary Ca excretion with similar rate of apparent absorption. It also decreased urine pH and titratable acidity. The response to induced hypocalcemia created by the infusion of 4.6% EDTA solution revealed that reducin

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13

Morgart, John R., Paul R. Krausman, William H. Brown, and Frank M. Whiting. "Chemical Analysis of Mountain Sheep Forage in the Virgin Mountains, Arizona." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/310778.

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14

Smith, David Richard. "MOVEMENTS, HABITAT USE, AND FORAGE USE OF REINTRODUCED DESERT BIGHORN SHEEP." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275272.

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15

Forster, Lance Allen. "Nutritional value of flat pea hay fed to sheep at different levels." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43855.

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<p>Two experiments were conducted with sheep to determine the nutritional value of 'Lathco' flatpea (Lathyrus sylvestris) hay. In experiment 1, a finishing trial was conducted with 50 group fed crossbred lambs (25 ewes and 25 wethers) fed diets consisting of 70% chopped forage and 30% ground corn grain for 70 d. Five pens of five wethers and five pens of five ewes were selffed diets in which the forage consisted of 100:0, 75:25, 50:50, 25:75, and 0:100 proportions of alfalfa (Medicago sativa L.) and flatpea hay. Feed efficiencies decreased linearly (P<.05) as flatpea increased in the diet. Lin

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16

Ayangbile, Gbemiga A. "Methods of preserving and enhancing fermentation and nutritional value of caged layer waste-wheat straw silages fed to sheep." Thesis, Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/64564.

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Three experiments were conducted with fresh caged layer waste collected within 24 h after excretion. The waste was stored uncovered for 42 d in polyethylene lined 210 liter metal drums. In the first experiment, waste was treated with no additive, 1 and 1.5% formaldehyde, 1.5 and 2% sodium metabisulfite and 1. 5 and 2% propionic/formic acid (1: 1, w/w). In the second experiment, the additives used were: none, 1% formaldehyde, 1.5% sodium metabisulfite, 1.5% propionic/formic (1: 1, w/w), 10% dry sugar cane molasses and 10% dry molasses plus 2% sodium chloride (salt). In this experiment, the wast

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17

Mazaika, Rosemary 1964. "Desert bighorn sheep and nutritional carrying capacity in Pusch Ridge Wilderness, Arizona." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/276964.

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The number of desert bighorn sheep (Ovis canadensis mexicana) in Pusch Ridge Wilderness (PRW), Santa Catalina Mountains, Arizona has declined to between 50 and 100 animals. Sheep have restricted movements to the southwest corner of PRW. I developed a model based on nitrogen (N) content of forage and forage quantity to measure seasonal changes in nutritional carrying capacity of sheep use areas in PRW. Forage based estimates of animals numbers were greater for April to September than for October to March. My study suggests that forage is not limiting desert bighorn sheep in PRW and illustrates

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18

Terblanche, Stefan. "An economic analysis of an intensive sheep production system on cultivated pastures in South Africa, incorporating creep feeding- and accelerated breeding practices." Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/d1020939.

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The South African sheep industry has experienced an increase in the price of meat and wool over the past several years. This has led to an interest in intensification of sheep production off planted pastures. Due to this phenomenon an economic viability study was done on the intensification of sheep production on cultivated pastures under irrigation. When intensifying sheep production, certain management practices need to be incorporated in order to enhance the output obtained per hectare and to overcome the higher input cost of production. Management practices that could be included are creep

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19

Roux, Francis Augustus. "The influence of the composition of mixed Karoo vegetation on the grazing habits of Merino and Dorper wethers." Thesis, Rhodes University, 1994. http://hdl.handle.net/10962/d1003792.

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The primary objective of this research project was to determine whether area-selective grazing, by Dorper and Merino wethers, took place in small grazing camps as governed by differences in vegetal cover. The main research techniques employed were the descending-point method for the determination of botanical composition, sub-division of the camps into gridblocks to trace sheep movement in relation to vegetation patterning, fistulated animals to determine diet selection, the electronic theodolite for micro-topography, and few minor techniques. The result have shown that area- patch- and specie

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20

Nottle, Mark Brenton. "Short-term nutrition and its effect on ovulation in the ewe." Title page, table of contents and summary only, 1988. http://web4.library.adelaide.edu.au/theses/09PH/09phn921.pdf.

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21

Valizadeh, Reza. "Summer nutrition of sheep based on residues of annual crops and medic pastures." Title page, contents and abstract only, 1994. http://web4.library.adelaide.edu.au/theses/09PH/09phv172.pdf.

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22

JÃnior, Gerardo Alves Fernandes. "Desempenho produtivo e qualidade da carne de ovinos terminados em pastagem irrigada no semiÃrido nordestino." Universidade Federal do CearÃ, 2010. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=5996.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>O objetivo desse estudo foi avaliar o desempenho produtivo e a qualidade da carne de animais das raÃas Santa InÃs (SI), Somalis Brasileira (SO) e Morada Nova (MN), e de mestiÃos Â Dorper x Â Morada Nova (F1), terminados em pastagem cultivada irrigada. Foi realizada estaÃÃo de monta simultÃnea para as raÃas SI, SO e MN, sendo que metade das fÃmeas da raÃa Morada Nova foi cruzada com reprodutores da raÃa Dorper. Na fase de cria, matrizes e crias permaneceram em pastagem nativa. ApÃs o desmame, treze cordeiros da raÃa Santa

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23

Maywald, Dionne Lee. "Palatability variation between the sex phenotypes of bladder saltbush (Atriplex vesicaria)." Title page, contents and summary only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phm474.pdf.

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Bibliography: leaves 105-121. This study reports the first thorough investigation of palatability variation in Atriplex vesicaria Heward ex Benth. (bladder saltbush). Intensive small-plot dietary trials, supported by a paddock dietary experiment, cross-fence comparisons and cafeteria trials, showed that sheep preferentially grazed female saltbushes over male and bisexual ones. Sheep avoided male saltbushes due to a chemical deterrent, and used visual (male flower spike) and olfactory cues to detect male plants. The effect of this selective grazing was to reduce the size and reproductive outpu

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24

Zylka, Christine A. "Composition and nutrient utilization by sheep of ensiled tall fescue with different levels of endophyte infection." Thesis, Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/52098.

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Low and high endophyte infected stockpiled tall fescue was harvested, chopped and ensiled in 210 liter metal drums, double lined with polyethylene bags. Endophyte infection averaged 4 and 70%, respectively, for the low- and high-endophyte fescue. A metabolism trial was conducted with 24 wethers fed diets consisting of 100% low-endophyte fescue silage, 50% low-endophyte and 50% high-endophyte fescue silage, and 100% high-endophyte fescue silage. Chopped alfalfa hay was used as a control forage. Single samples were analyzed, so statistical treatment of chemical composition was not possible. Howe

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25

Jurgens, Andre Hendrik. "Feedlot performance and essential amino acid growth requirements of Dorper lambs." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52846.

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Thesis (MScAgric)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: The Dorper is numerically the second most abundent of all the sheep breeds in South Africa. It is the most numerous sheep breed in the dry arid areas of South Africa which make out a very big portion of the natural grazing in South Africa. In this study the feedlot performance was specifically investigated since so little research has been done in this regard. In the first study (Chapter 1), the production efficiency, body components and commercial yield of 13 Dorper and 12 Merino lambs were investigated. A pellet

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26

GOMAA, RAAFAT MAHMOUD MOHAMED 518237, and RAAFAT MAHMOUD MOHAMED GOMAA. "Possibility of treating agricultural byproducts by exogenous enzymes and anearobic bacteria to produce ruminant feeds." Tesis de maestría, Ain Shams University, 2012. http://hdl.handle.net/20.500.11799/68377.

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The objectives of this study were to verify the potential benefits of growing green barley on anaerobic enzyme (ZAD) treated rice straw. In addition, the work intended to investigate the effect of this treatment on digestibility parameters in Ossimi sheep. A complete random design was used to distribute twelve mature male of Ossimi sheep (45.0 +0.5 Kg wt.) on the following treatments: Rice straw with grown barley (RSGB) without either ZAD or orange pulp (control, T1), RSGB plus ZAD (T2), RSGB plus orange pulp (T3) and RSGB + ZAD + orange pulp (T4). The obtained results could be summarized as f

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27

Sanon, Hadja Oumou. "The importance of some Sahelian browse species as feed for goats /." Uppsala : Dept. of Animal Nutrition and Management, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/200784.pdf.

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28

Thomas, Dean Timothy. "Selective grazing by sheep to improve the control of weeds of crops." University of Western Australia. School of Animal Biology, 2006. http://theses.library.uwa.edu.au/adt-WU2006.0041.

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[Truncated abstract] With the rapid development of multiple herbicide resistant weeds in crops, it is likely that an important role now exists for new grazing management strategies in farming systems to provide an integrated approach to weed management. In this thesis we examined the general hypothesis that sowing a legume of low preference by sheep relative to the target weeds of crops would improve the control of those weeds in a grazed pasture. To test this general hypothesis, legumes of low preference by Merino sheep were identified and a series of experiments conducted to determine the ef

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29

Shariff, Mohammed Azamatulla. "Kinetics of selenium metabolism in the ewe and fetal lamb." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/27528.

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To investigate the whole body metabolism of selenium (Se), isotope kinetic studies were undertaken in which indwelling catheters were implanted in the jugular veins of pregnant and nonpregnant ewes as well as the inferior vena cava and saphenous veins of 110-120 day (d) old ovine fetuses. A single injection of ⁷⁵Se-sodium selenite was administered and blood samples were obtained at various times. A 5 d Se balance trial, which commenced on the day of tracer experiment, was also undertaken. The plasma ⁷⁵Se specific activity data were used for determining the kinetic parameters of Se met

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30

Robinson, Julie A. "The effects of dietary molybdenum and sulfur on serum copper concentrations, growth and reproductive function in lambs." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/31319.

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Feeds often contain molybdenum (Mo) and sulfur (S) in excess of recommended allowances for adequate copper (Cu) absorption by ruminant livestock. Two randomized-block experiments were conducted using lambs given a cereal-based diet (90% of dry matter (DM) intake), containing 8 mg Cu, 0.7 mg Mo and 2.1g S per kg DM, that was either unsupplemented or supplemented with ammonium molybdate or sodium sulfate alone or in combination, to determine the effects of Mo, S and Mo+S on growth, hematology, serum Cu and Mo concentrations and reproductive function. Short term intake (4 weeks) by rams, aged 18

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31

Beukes, Johannes Arnoldus. "Maize silage based diets for feedlot finishing of Merino lambs." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/79970.

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Thesis (MScAgric)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: The aim of the study was to determine the effect of increasing levels of Maize silage in finishing diets for Merino lambs on their feed intake, production performance, feed conversion ratio, digestibility and meat quality. Concerns exist regarding the intake of high moisture and fibre containing silage in sheep due to the physical fill effect thereof. To determine the efficiency of silage as feed ingredient for sheep, maize was cut at 27% dry matter (DM), compacted into 220 litre plastic drums, sealed and left to ferment fo

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32

Fernandes, Júnior Gerardo Alves. "Desempenho produtivo e qualidade da carne de ovinos terminados em pastagem irrigada no semiárido nordestino." reponame:Repositório Institucional da UFC, 2010. http://www.repositorio.ufc.br/handle/riufc/17110.

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FERNANDES JÚNIOR, Gerardo Alves. Desempenho produtivo e qualidade da carne de ovinos terminados em pastagem irrigada no semiárido nordestino. 2010. 87 f. Dissertação (Mestrado em zootecnia)- Universidade Federal do Ceará, Fortaleza-CE, 2010.<br>Submitted by Elineudson Ribeiro (elineudsonr@gmail.com) on 2016-05-13T18:46:23Z No. of bitstreams: 1 2010_dis_gafernandesjunior.pdf: 1244136 bytes, checksum: 8d570a30db598d3adf231f29275da039 (MD5)<br>Approved for entry into archive by José Jairo Viana de Sousa (jairo@ufc.br) on 2016-05-27T19:56:43Z (GMT) No. of bitstreams: 1 2010_dis_gafernandesjunior.p

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Mayberry, Dianne. "Getting into the guts of a salty problem : poor animal production from saltbush pastures is due to inefficient rumen fermentation." University of Western Australia. School of Animal Biology, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0071.

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The main hypothesis tested in this thesis was that poor animal production from saltbush pastures is due to the negative effects of high sodium chloride (NaCl) and potassium chloride (KCl) on the ruminal environment, and subsequent effects on microbial populations and products of rumen fermentation. This main hypothesis was tested in two experiments. In the first experiment (Chapter Four) the effects of saltbush and a formulated high-salt diet on the ruminal environment and microbial populations were measured over 24-hours following feeding. Feeding both the saltbush and high-salt diet increase

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Kirk, David J. "Effects of feeding lasalocid and monensin upon mineral status of steers, and partial absorption and renal handling of minerals in sheep." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54218.

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Studies were conducted to determine the effects of feeding lasalocid and monensin upon mineral status of ruminants, changes in digestive and renal physiology which bring about altered mineral status, and the effects of dietary K upon the actions of ionophores. Two 84-d grazing trials were conducted with steers fed no ionophore, 200 mg lasalocid, or 150 mg monensin. Monensin tended to increase gain of steers, but lasalocid had no effect. Feeding supplemental lasalocid and monensin altered Ca, P, Mg, Na, K, Cu, Fe and Zn status of grazing steers, but effects were not consistent. Twenty-four cr

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35

Liu, Hung-Jyh. "Volatile fatty acid and formic acid metabolism in sheep : a thesis submitted to the University of Adelaide in fulfilment of the requirements for the degree of Master of Agricultural Science." Title page, contents and summary only, 1990. http://web4.library.adelaide.edu.au/theses/09A/09al783.pdf.

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Includes bibliographical references (leaves 59-79) Examines the metabolism of volatile fatty acid and formic acid in fed sheep. Develops a method for analysing and qualifying volatile fatty acids with special reference to formic acid in biological fluids by High-Performance Liquid Chromatography.

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36

Baker, Scott M. "Evaluation of quickstand bermudagrass fertilized with two rates of nitrogen and grazed by sheep at different stocking rates in a temperate environment." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-11242009-020230/.

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37

Brundyn, Laetitia. "The utilization and supplementation to stubble lands for South African mutton Merino ewes." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/53186.

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Thesis (MScAgric)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: An experiment was conducted to determine the effect of the frequency of supplementary feeding on the production of South African Mutton Merino (SAMM) ewes grazing wheat stubble. One hundred and sixty ewes were randomly divided into two groups that consisted of four groups each. Eight camps were grazed for 138 days during which lambing occurred. Four groups of 25 ewes each grazed a 17 ha camp at a stocking density of 5.8 ewes/ha and four groups of 15 ewes each grazed a 12 ha camp at a stocking density of 5.0 ewes/ha

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38

Paterson, Lyn J., and University of Lethbridge Faculty of Arts and Science. "The effect of dietary manipulation on the content and positional distribution of fatty acids including conjugated linoleic acid in the tissues of sheep." Thesis, Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2000, 2000. http://hdl.handle.net/10133/121.

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Conjugated linoleic acid (CLA) is produced in the rumen by isomerization of linoleic acid and has been shown to be anticarcinogenic. The objective of this study was to determine the effects of feeding dietary CLA to pre-ruminant lambs or linoleic acid-rich safflower oil to weaned ruminating lambs. Fat content, CLA content and fatty acid (FA) composition of diaphragm, leg, rib, subcutaneous (SC) adipose and liver tissues were determined. The triacylglycerol (TAG) fractions of the total lipid (TL) from the diaphragm, rib and SC adipose tissues were analyzed for FA composition and FA positional d

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VITTI, DORINHA M. S. S. "Avaliacao da disponibilidade biologica do fosforo dos fosfatos bicalcico, Patos de Minas, Tapira e Finos de Tapira para ovinos pela tecnica de diluicao." reponame:Repositório Institucional do IPEN, 1989. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10215.

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Made available in DSpace on 2014-10-09T12:36:06Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:59:23Z (GMT). No. of bitstreams: 1 11278.pdf: 1430649 bytes, checksum: a436d2f134f4223026499c63265f2730 (MD5)<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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Lopes, Keny Samejima Mascarenhas [UNESP]. "Desempenho, qualidade de carcaça e da carne de cordeiros alimentados com dietas contendo silagens de milho consorciadas ou não com capins tropicais." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/123196.

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Made available in DSpace on 2015-05-14T16:53:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-11-03Bitstream added on 2015-05-14T16:59:26Z : No. of bitstreams: 1 000824683.pdf: 382992 bytes, checksum: 43c73d520f995e05fb7f807db6fed0c3 (MD5)<br>O trabalho de pesquisa foi realizado com o objetivo de avaliar se há alteração no consumo, desempenho, comportamento ingestivo, digestibilidade, bem como a avaliação econômica do sistema, a qualidade da carne e característica de carcaça, dos cordeiros alimentados com dietas com silagens de milho advindas de cultivo exclusivo do milho e dos cons

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Lopes, Keny Samejima Mascarenhas. "Desempenho, qualidade de carcaça e da carne de cordeiros alimentados com dietas contendo silagens de milho consorciadas ou não com capins tropicais /." Ilha Solteira, 2014. http://hdl.handle.net/11449/123196.

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Orientador: Rafael Silvio Bonilha Pinheiro<br>Co-orientador: Marcelo Andreotti<br>Banca: Viviane Corrêa Santos<br>Banca: Cristiano Magalhães Pariz<br>Resumo: O trabalho de pesquisa foi realizado com o objetivo de avaliar se há alteração no consumo, desempenho, comportamento ingestivo, digestibilidade, bem como a avaliação econômica do sistema, a qualidade da carne e característica de carcaça, dos cordeiros alimentados com dietas com silagens de milho advindas de cultivo exclusivo do milho e dos consórcios com Urochloa brizantha cv. Xaraés ou com Panicum maximum cv. Tanzânia produzidas em siste

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Gore, Mitchell Taylor. "Invitro protein synthesis and degradation and cathepsin D activity in the muscles of selenium-vitamin E deficient sheep." Thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/45729.

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Invitro synthesis and degradation capabilities and the cathepsin D activity of the skeletal muscles of experimentally induced Selenium-Vitamin E deficient lambs were investigated. Twenty-one Dorset x Coopworth x Suffolk lambs were blocked by weight and assigned to one of the following treatments: 1) a basal diet of 85% whole shelled corn and 15% mixed grass hay plus a mineral supplement that was low in Se and E (-Se-E), 2) the basal diet and deficient mineral mixture as fed in treatment 1 with the addition of a casein encapsulated fat supplement (-Se-E+fat), 3) the basal diet plus a mineral mi

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Buttrey, Sherri A. "Effect of sulfur fertilization on yield and chemical composition of corn forage and utilization of corn silage by sheep." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/104299.

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Vos, Pieter Johannes Andreas. "The effect of supplementary light on the productive performmance of dorper lambs fed intensively." Thesis, Bloemfontein : Central University of Technology, Free State, 2010. http://hdl.handle.net/11462/25.

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Thesis (M. Tech.) - Central University of Technology, Free State, 2010<br>The objective of this research study was to quantify the differences in average daily gain (ADG), back fat thickness (BFT), eye muscle area (EMA), fat thickness (FT) on different body parts, the feed conversion ratio (FCR) and body dimensions (by means of body measurements) of Dorper lambs exposed to supplemented light. For this study 120 Dorper lambs (115 ± 10 days old) weighing (29.76 ± 5.01kg) were used. The lambs were randomly divided into three homogeneous groups (20 castrated and 20 intact males). The three groups

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Mapiliyao, Luke. "Sheep production practices, flock dynamics, body condition and weight variation in two ecologically different resource-poor communal farming systems." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/340.

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The objective of this study was to determine sheep production practices, constraints, flock dynamics, body condition and weight variation in two ecologically different resource-poor communal farming systems of the Eastern Cape Province of South Africa. Mean sheep flock sizes per household were not significantly different between the two ecologically different areas (villages); Gaga (19.0±3.10) and Sompondo (18.3±3.10). Shortage of feed, disease and parasite were reported the most important constraints across the two villages. In both villages, sheep housing was poorly constructed using acacia

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Le, Roux Marize. "Specialized creep feeding for lambs to optimize performance." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17974.

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Thesis (MScAgric)--Stellenbosch University, 2011.<br>ENGLISH ABSTRACT: The following study is to determine if a creep feed balanced for limiting essential amino acids (EAA) at a certain non structural carbohydrate (NSC) level will elicit greater responses than lambs reared on a commercial creep feed. Lysine, Threonine, Methionine, Isoleucine, Phenylalanine and Leucine were determined as the limiting amino acids for nursing lambs. These amino acids were incorporated into the creep feed treatments CF1 and CF2 representing 157 g CP/kg, 477 g NSC/kg and 179 g CP/kg, 508 g NSC/kg, respectivel

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Rira, Moufida. "Les tanins hydrolysables et condensés : une piste pour la réduction de la production du méthane entérique par les ruminants en mileu tropical Intake, total-tract digestibility and methane emissions of Texel and Blackbelly sheep fed C4 and C3 grasses tested simultaneously in a temperate and a tropical area Ruminal methanogens and bacteria populations in sheep are modified by a tropical environment Potential of tannin-rich plants, Leucaena Leucocephala, Glyricidia sepium and Manihot esculenta, to reduce enteric methane emissions in sheep Potential of tannin-rich plants, Leucaena Leucocephala, Glyricidia sepium and Manihot esculenta, to reduce enteric methane emissions in sheep Potential of tannin-rich plants for modulating rumen microbes and ruminal fermentation in sheep Methanogenic potential of tropical feeds rich in hydrolyzable tannins." Thesis, Université Clermont Auvergne‎ (2017-2020), 2019. http://www.theses.fr/2019CLFAC065.

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En zone tropicale, la production de lait et de viande par les ruminants est limitée par une faible disponibilité et une qualité médiocre des fourrages. A ces contraintes alimentaires s’ajoute l’impact environnemental lié en particulier aux émissions de méthane entérique par les ruminants. L’objectif de cette thèse était de comparer la production de méthane en milieu tempéré et en milieu tropical, puis de valoriser des fourrages tropicaux connus pour leur richesse en tanins dont les propriétés anti-méthanogènes sont reconnues, et qui peuvent réduire l’impact environnemental sans compromettre la

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Hadjigeorgiou, Ioannis E. "Selection of roughage diets by sheep and goats." Thesis, University of Aberdeen, 1996. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU083688.

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The objective of the present work was to elucidate some of the possible choice determinants involved in diet selection by sheep and goats. The first experiment investigated the ingestive and digestive responses of these two species to a range of forage chemical composition attributes (i.e. nitrogen and fibre content). Forage DM intake was positively associated with their nutritive quality. Goats had higher voluntary DM intakes (P<0.05) and lower apparent digestibility coefficients (P<0.001) for any given forage than sheep, but the intake of digestible DM was similar for the two species. When f

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Alvarenga, Amanda Botelho. "Feed efficiency traits in Santa Inês sheep under genomic approaches." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/11/11139/tde-20032018-160145/.

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The selection on genetic values predicted from markers could substantially increase the rate of genetic gain in animals by increasing accuracy of prediction and reducing generation interval, especially for difficult to measure traits, such as feed efficiency. Feed efficiency is the most important trait in animal production due to its impacts on cost of production and environmental factors. Many metrics measure the feed efficiency, such as ratio of gain to feed (FER), the ratio of feed to gain (FCR) and residual feed intake (RFI). Nevertheless, in ovine, no study with the aim of understand the

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Chadwick, Megan. "Fetal programming of sheep for production on saltbush." University of Western Australia. School of Animal Biology, 2009. http://theses.library.uwa.edu.au/adt-WU2010.0033.

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[Truncated abstract] Saltbush is one of the few types of forage that will grow on salt affected land but, sheep struggle to maintain weight when grazing saltbush mainly because of its high salt content. Therefore, a strategy to improve salt tolerance of sheep would be beneficial to the profitable use of revegetated saline land. This could be done by manipulating the dietary salt load of pregnant or lactating ewes which could 'program', or permanently alter the physiology of their offspring to allow them to cope better with a high-salt diet as adults. When rat dams consume a high amount of salt

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