Relevant bibliographies by topics / Sheep and sheep breeding

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Sheep and sheep breeding'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 February 2022

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Journal articles on the topic "Sheep and sheep breeding"

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Bahodirovich, Shayusupov Bobir, and Ruzibaev Nuraddin Rahimovich. "Biological Properties And Breeding Of Meat And Wool Sheep." American Journal of Agriculture and Biomedical Engineering 02, no. 09 (September 27, 2020): 71–76. http://dx.doi.org/10.37547/tajabe/volume02issue09-12.

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Walle, Desalegn Ayichew. "Dorper sheep cross breeding with Indigenous sheep breed in Ethiopia." Journal of Applied and Advanced Research 4, no. 1 (February 23, 2019): 36. http://dx.doi.org/10.21839/jaar.2019.v4i1.250.

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The objective of this review paper was to review dorper sheep cross breeding with indigenous sheep breed in Ethiopia. The paper reviewed and discussed the history of dorper breed introduction, research and development efforts in crossbreeding and their performance under on-station and on-farm management. Formal survey on farmers perception on Dorper cross sheep indicated that the crossbred dorper sheep have non selective feed behavior and excellent in meat production under farmer`s management. On other study showed that dorper sheep was not meet farmer interest in breeding sheep aspect because of black coat color. The performance of indigenous sheep and their crosses with Dorper varied as per the location, management, farming conditions and percentage of exotic blood level inheritance. Different research output by team of researchers on farm and on station performance evaluation of dorper indicated that crossbreds often outperformed their local contemporaries. Under on farm condition, body weight at different ages was significantly higher in 50% Dorper crosses as compared to their 25% and75% counter parts.On station birth weight of Dorper (3.39 3.8 kg) better than crossbreed (3.0 3.24 ± 0.04 kg) and local sheep (2.36 2.77 kg), respectively.While the mean weaning weight (14 16 kg) and yearling weight (26.95 32.43 ± 0.46 kg) of 50% Dorper crossbreed was better than indigenous sheep breeds. However, crossbred ewes and local sheep breeds did not differ in litter size. Dorper crosses with Afar under on station is not economically important due to lower weight in all aspects. Crossbreeding programs of dorper with indigenous sheep require strong research and development support from public service and non-governmental institutions for sustainable design, optimization, and implementation in clearly defined production environments.
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Owen, J. "Breeding for fecundity in sheep." Veterinary Record 123, no. 12 (September 17, 1988): 308–10. http://dx.doi.org/10.1136/vr.123.12.308.

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Dzitsiuk, V. V., and H. T. Tipilo. "CHROMOSOMAL ABNORMALITIES SHEEP." Animal Breeding and Genetics 53 (April 27, 2017): 209–14. http://dx.doi.org/10.31073/abg.53.28.

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Successful and creative plant-breeding work in a stock-raising is based on the estimation of genetic potential of separate breeds, herds and individuals, that is impossible without thorough genetic- populations knowledge. Knowledge of features of caryotype gives an opportunity objectively to estimate the breeds of animals taking into account their population-cytogenetic features, that assists more complete idea about the evolution of breeds. However such important agricultural object, as a domestic sheep, remains cytogenetic poorly studied, especially in a population-cytogenetic aspect.In literature different breeds have small information about frequency and spectrum of the inherited anomalies and populations of sheep. Most chromosomal and genic anomalies of sheep in general not research, although for practice of plant-breeding work necessary knowledge of reasons of their appearance. Caryotype of sheep is presented by 54 chromosomes, from them 26 pairs of autsom and one pair of sexual chromosomes (ХХ or ХУ). Three pairs of large metacentric and 23 pairs of acrocentric chromosomes of different size enter in the complement of autsom. For sheep as well as for other animals characteristic chromosomal polymorphism as a numerical varying of chromosomes in caryotype (aneuploidi and poliploidi), morphological aberations and associations of separate chromosomes. Chromosomal anomalies of sheep are reason of forming of nonviable gamet, that results in death of embryos on the early stages, and, as a result, to the considerable economic losses in economies. The facts of chromosomal aberation educed for sheep testify to the necessity of cytogenetic control of tribal animals, especially rams, with the aim of exposure of animals-transmitters of undesirable changes in caryotype and exception of them from a plant-breeding process.
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Alexander, A. W., G. Burgess, P. R. English, D. C. Macdonald, and O. MacPherson. "A sheep health survey of lowground purchasers of breeding sheep in grampian & the borders of scotland." Proceedings of the British Society of Animal Production (1972) 1991 (March 1991): 89. http://dx.doi.org/10.1017/s0308229600020390.

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The Highlands and Islands Development Board (HIDB) is developing a strategy for the production and marketing of high health breeding sheep. With HIDB support, farmers in the North of Scotland have formed a co-operative to produce and market high health status sheep. The co-op (the Highlands and Islands Sheep Health Association) has over 800 members with a total of 300,000 breeding ewes. Members' flocks are monitored by the Scottish Veterinary Investigation Service for Enzootic Abortion of Ewes (EAE) and for vaccination against the Clostridial Diseases and Pasteurella. To guide HIDB strategy a postal survey was undertaken of lowground breeding sheep purchasers in Grampian and Borders.The objectives were to determine, firstly, lowground breeding sheep purchasers' attitudes, opinions and practices when buying breeding sheep; secondly, their management of sheep health; thirdly, their experience of EAE, its prevention and control; and fourthly, their awareness of sheep health schemes and interest in purchasing high health status sheep.
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Valiev, Ayrat, and Dafik Khafizov. "The place of sheep breeding in the formation of meat resources and the development of the regional economy." Russian Journal of Management 9, no. 2 (August 31, 2021): 46–50. http://dx.doi.org/10.29039/2409-6024-2021-9-2-46-50.

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The economic importance of the sheep breeding industry in the development of the agrarian economy of Russia is due to the types of product assortment obtained in this industry for the formation of food security and for industry. The advantages of sheep breeding in the use of natural forage lands for sheep grazing in Russia are analyzed. The role of sheep products in the food supply of the country is revealed. The place of sheep breeding in the development of the economy of the regions, the level of specialization in the sheep breeding industry in the regions of the country is investigated, the expediency of expanding the regions of sheep keeping, increasing the efficiency of using the potential of the industry, the growth of economic indicators in agriculture, increasing the production of sheep products in rural farmsteads and farms is revealed, the role of consumer cooperation in the development of sheep breeding in small forms of management, increasing employment in rural areas is revealed.
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Kuzmin, V. N., T. E. Marinchenko, and A. P. Korolkova. "Sheep Breeding: State and Development Prospects." Machinery and Equipment for Rural Area, no. 12 (December 29, 2019): 2–8. http://dx.doi.org/10.33267/2072-9642-2019-12-2-8.

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Deykin, A. V., M. I. Selionova, A. Yu Krivoruchko, D. V. Kovalenko, and V. I. Truhachev. "Genetic markers in sheep meat breeding." Vavilov Journal of Genetics and Breeding 20, no. 5 (January 1, 2016): 576–83. http://dx.doi.org/10.18699/vj16.139.

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Robinson, TJ. "Controlled Sheep Breeding: Update 1980-1985." Australian Journal of Biological Sciences 41, no. 1 (1988): 1. http://dx.doi.org/10.1071/bi9880001.

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OMBAYEV, A. M. "KAZAKHSTAN – A POWERFUL SHEEP BREEDING REGION." Sheep, goats, woolen business, no. 4 (2020): 18–21. http://dx.doi.org/10.26897/2074-0840-2020-4-18-21.

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The article analyzes the current state of development of sheep breeding in Kazakhstan. It marks the location of the industry by regions and geographic zones of the country, as well as the number of breeding animals in the direction of productivity in the context of regions of the country.
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Dissertations / Theses on the topic "Sheep and sheep breeding"

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Alink, Frances. "Maternal and peri-ovulatory nutritional effects on the expression of the Inverdale (FecX1) fecundity gene in texel X Scottish hillbreed sheep." Thesis, Available from the University of Aberdeen Library and Historic Collections Digital Resources, 2009. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=25795.

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Borg, Randy Charles. "Developing Breeding Objectives for Targhee Sheep." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/9973.

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Breeding objectives were developed for Targhee sheep at different levels of prolificacy and triplet survival. Economic weights (EW) were derived for estimated breeding values (BV) from National Sheep Improvement Program genetic evaluations for 120 d weaning weight (WW), maternal milk (MM), yearling weight (YW), fleece weight (FW), fiber diameter (FD), staple length (SL), and prolificacy (PLC; lambs born/100 ewes lambing). A commercial flock was simulated, accounting for nonlinear relationships between performance and profit. Ewes were assumed mated to sires of specified BV and profit was derived from lifetime performance of lambs and replacement females from that lamb crop. Economic weights were determined as change in profit from use of sires with BV that were one additive standard deviation above the mean for each trait [1.98 kg for WW, 1.62 kg for MM, 2.90 kg for YW, 0..36 kg for FW, 0.99 microns for FD, 0.74 cm for SL, and 17.58 lambs/100 ewes for LC], while holding all other BV at breed average. Separate breeding objectives were derived for different ways of meeting increased nutrient needs (P = purchase hay, R = rent pasture, and L= limited flock size) and for different market lamb values (D = discounting lamb value for heavy weights, ND = no discount for heavy lambs). Based on replicated simulations, relative EW did not vary with prolificacy or triplet survival (P > 0.15) but were affected by feed costs and lamb market values (P < 0.01). Selection indexes were derived within and across simulated scenarios, and correlation (r) among indexes of > 0.90 indicated that an index could be used across multiple scenarios with little loss of selection efficiency. Indexes derived within feed cost scenarios (P, R, and L) and lamb value scenarios (D, ND) were strongly intercorrelated (r > 0.97). Correlations among average indexes for feed cost scenarios (0.97 for R and P, 0.70 for R and L; 0.85 for P and L) indicated that two feed cost scenarios could be used depending on whether winter forage was limited (L) or not (NL). The correlation between average indexes for these two scenarios was 0.78. Indexes were presented for combinations of feed cost and lamb value scenarios. Two indexes were suggested, representing the scenarios that apply to a large portion of Targhee producers. These indexes were for discounting heavy lambs with limited winter forage (D-L: 1.0 WW + 0.14 MM __ 0.76 YW + 1.22 FW __ 0.36 FD - 0.09 SL + 0.25 LC) and discounting heavy lambs with additional available forage (D-NL: 1.0 WW + 0.24 MM __ 0.34 YW + 1.65 FW __ 0.41 FD - 0.14 SL + 0.33 LC). For a standardized selection differential of one for the index, the expected changes in mean index value were $2.17 and $1.92 per ewe per generation for D-L and D-NL, respectively.
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Grobler, Hermanus Johannes Fourie. "Veldram performance testing of dorper rams in Namibia : performance testing, progency testing and factors influencing sale price of rams." Thesis, Nelson Mandela Metropolitan University, 2010. http://hdl.handle.net/10948/1545.

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The study aims to determine the contribution made by available ram growth- and breed standard parameters on the sale price of auctioned rams in Namibia. These findings serve as an indication of the importance ram buyers place on individual parameters in selecting rams for breeding purposes. It furthermore tries to establish whether scientific measurement for the estimation of ram breeding values takes precedence over subjective appraisal. The analysis of the 100 day and 270 day growth performance of the progeny of selected Veldram tested rams were used to evaluate the accuracy of the estimation of ram breeding values and may serve to validate the proper execution of these Veldram tests.
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Moore, Céline. "Genetic influence on predictability of reproductive potential of rams." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65523.

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Roden, Janet A. "Simulation studies of nucleus breeding systems for sheep improvement." Thesis, University of Aberdeen, 1993. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU053530.

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The genetic outcome of operating an open nucleus system (ONS) in a population of 1200 sheep divided into individual flocks, was investigatd using simulation techniques, and a comparison to alternative breeding systems was made. Selection was for best linear unbiased prediction of breeding value (EBV) for a trait measurable on individuals before selection. Migration of animals between flocks was based on the EBV. The results of stochastic simulations indicated that, compared to selection within closed flocks (CF), the annual genetic gain could be increased by 25 to 40 per cent if an ONS was operated. The variation in selection response, and the rate of inbreeding were also lower. Simulation results showed that approximately 25 per cent of nucleus sires should be selected from the base flocks. Initial genetic differences between flocks had a short term effect on genetic gain in the ONS. Screening the population to ensure that the nucleus flock was initially composed of the best ewes, also only had a short term effect. The advantage of an ONS over CF selection was effected by flock size but not intitial heritability. The use of dispersed nucleus system and a sire referencing scheme with selection of sires across flocks, was investigated. The outcome of these systems was very similar to the ONS. The higher rate of genetic gain achieved in the ONS, compared to CF selection, was attributed to higher genetic selection differentials and maintenance of genetic variation within flocks. These effects were included in a deterministic model of the ONS. The model described the simulated data well, although changes in genetic variance at the outset of the ONS were underestimated. Failure to account for finite population effects in previous studies has resulted in underestimation of the benefits of an open nucleus system in small populations.
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Todd, Darren Lindsay. "Implementation of genomic selection in UK beef and sheep breeding." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8766.

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Genomic selection (GS) has been adopted by the dairy cattle breeding industry and the opportunity exists to implement this technology in UK beef and sheep breeding. However, these sectors do not appear so readily predisposed to GS implementation. Following an introduction to GS in Chapter 1, Chapter 2 investigated the structure of the little-studied UK beef breeding sector. This provided estimates of key commercial and pedigree population parameters, for use in modelling genetic gain from GS. Terminal traits were found to be the dominant selection goals, with 85% of beef-sired commercial matings resulting in progeny being slaughtered at a prime age. Pedigree bulls disseminated the majority of genes in the sector via natural service. The correlation between the terminal selection index (TI) and the sale price of breeding bulls was moderate, suggesting a modest uptake of genetic technology in the sector. Chapter 3 estimated selection intensity for TI, generation interval and the dissemination rate of improved genes in the pedigree Limousin population. In order to predict the genetic gain achievable in using GS in beef and sheep breeding, Chapters 4 to 6 undertook deterministic selection index simulations, incorporating genomic information as correlated traits. In Chapter 4, GS was modelled for terminal beef traits, when incorporating carcass information and accounting for likely genotype by environment interaction. Using a training population of 2000 sires, this concept was predicted to offer 40% greater genetic gain than existing BLUP selection using pedigree phenotypes. Gene flow methodology projected the commercial value of this gain to offer a substantial return net of genotyping costs. Chapter 5 explored GS for maternal beef traits within the concept of a nucleus breeding scheme. Whilst greater genetic gain was predicted with GS than with conventional BLUP, the economic value of this gain was projected to be too low to justify such a scheme in the UK. Chapter 6 proposed a synergy between computer tomography (CT) phenotypes and GS in sheep breeding. Developing a genomic predictor from male selection candidates with CT phenotypes and conventional performance records was predicted to increase genetic gain by 55% over BLUP selection without CT traits. Introducing GBV contributed most of the accuracy in this scenario, suggesting that the existing performance recording structure in UK sheep breeding could in the future be replaced by GS using CT. In the general discussion, the potential for GS in other beef and sheep traits was considered in the light of the outcomes of these simulations. Given the lack of vertical integration in UK beef and sheep sectors, the drivers for implementation of GS are examined. Finally, the options for international cooperation and the possibilities offered by future genotyping technology are considered. It was concluded that implementation of GS incorporating beef carcass phenotypes was merited and could provide a platform for future GS implementation in other novel traits. Sheep GS with CT traits was considered a higher risk strategy, due to the lack of evidence for uptake of existing EBV technology.
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Rutherford, Sarah-Jayne. "Streptococcus dysgalactiae polyarthritis in lambs in England and Wales." Thesis, Royal Veterinary College (University of London), 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.572433.

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Saatchi, Mustafa. "Genetic parameters of production traits in Welsh mountain sheep." Thesis, Bangor University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263274.

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Cameron, Neil Donald. "Genetic improvement of lean meat production in terminal sire breeds of sheep." Thesis, University of Edinburgh, 1988. http://hdl.handle.net/1842/12147.

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Wigzell, Susan. "Physiological and nutritional factors affecting oestrous activity and pregnancy in the ewe, with emphasis on the role of melatonin." Thesis, University of Aberdeen, 1989. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU022758.

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In seven experiments carried out under natural-daylength conditions at 57oN, Scottish Blackface and Border Leicester x Scottish Blackface ewes of varying physiological states and nutritional regimes received daily at 1500 h an oral dose of either melatonin dissolved in water and alcohol or the vehicle alone. Throughout the experiments blood samples were collected thrice weekly for progesterone, prolactin and follicle stimulating hormone concentrations (FSH) and at 10 to 15 minute intervals for periods of up to 24 h for luteinizing hormone (LH). Ovulation rates were determined by laparoscopy. When given from the beginning of June and mid-March respectively melatonin advanced and reversed the breeding season, the reversal being as effective in ewes with an extended lactation as in those weaned early or those that had not bred in the previous year. Short-term treatment (30 days) with melatonin during mid-anoestrus not only failed to advance the breeding season but delayed it. Longer term treatment (60 to 90 days) produced transient oestrous cyclicity with ewes returning to anoestrus within one month after the end of treatment. For ewes on a low plane of nutrition melatonin increased ovulation rate at first behavioural oestrus and appeared to reduce embryo mortality. In all experiments melatonin suppressed plasma prolactin 10 to 15 days after the start of treatment with levels remaining low throughout the period of treatment except during late pregnancy. There was no evidence that melatonin promoted a progressive increase in the frequency of the pulsatile release of LH or had any stimulatory effect on FSH secretion in the first 6 weeks of treatment. It did however increase plasma progesterone concentrations in the post-oestrus period.
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Books on the topic "Sheep and sheep breeding"

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Long, Murray. Breeding stud sheep. Collingwood, Vic: Land Links, 2008.

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Dave, Brown. The modern shepherd. Ipswich: Farming Press, 1990.

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Fahmy, Mohamed H. Simplified principles for breeding sheep. Ottawa, Ont: Agriculture and Agri-Food Canada, 1994.

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Arkell, T. R. La sélection des sujets reproducteurs: Conseils auc débutants. Ottawa: Ministère de l'agriculture, 1997.

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Fahmy, M. H. DLS and Arcott sheep: New Canadian breeds. Ottawa, Ont: Agriculture Canada, 1993.

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Ireland, Department of Agriculture Food and Forestry. Pedigree sheep bred improvement programme: Performance results for lambs summer 1998. [Dublin]: Department of Agriculture, Food and Forestry, 1998.

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Sheep research, production & marketing in India. New Delhi, India: Inter-India Publications, 1988.

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Jones, Dewi A. Advancements in sheepbreeding and management, New Zealand, Holland, Belgium and France, 1994. Uckfield: NFST Secretariat, 1996.

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Zhili︠a︡kova, G. M. Nauchnoe obosnovanie priemov sovershenstvovanii︠a︡ ovet︠s︡ buri︠a︡tskogo tipa zabaĭkalʹskoĭ tonkorunnoĭ porody. Ulan-Ude: Buri︠a︡tskai︠a︡ gos. s.-kh. akademii︠a︡, 2006.

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Grozdanova, Elena. Dzhelepkeshanite v bŭlgarskite i sŭsednite im zemi prez XVI-XVIII vek: Po dokumenti ot nashi i chuzhdi arkhivi. Sofii͡a︡: Narodna biblioteka "Sv. Sv. Kiril i Metodiĭ", 1998.

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Book chapters on the topic "Sheep and sheep breeding"

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Simm, Geoff, Geoff Pollott, Raphael Mrode, Ross Houston, and Karen Marshall. "Sheep and goat breeding." In Genetic improvement of farmed animals, 319–65. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789241723.0319.

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Abstract This chapter highlights the application of genetic principles in sheep and goat breeding such as chromosome analysis, prediction of breeding values, and the use of the latest tools and technology in animal breeding.
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Kassem, R. "The Awassi Sheep Breeding Project in Syria." In Increasing Small Ruminant Productivity in Semi-arid Areas, 155–63. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-1317-2_12.

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Quirke, J. F., and J. P. Hanrahan. "Breed Differences in the Breeding Season in Sheep." In Endocrine Causes of Seasonal and Lactational Anestrus in Farm Animals, 29–43. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5026-9_5.

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Rege, J. E. O., Joel Ochieng, and Olivier Hanotte. "Livestock genetics and breeding." In The impact of the International Livestock Research Institute, 59–102. Wallingford: CABI, 2020. http://dx.doi.org/10.1079/9781789241853.0059.

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Abstract This chapter describes the contributions of the International Livestock Research Institute's (ILRI) to animal breeding. The specific topics include the genetic characterization and history of livestock, breeding technologies, genetic improvement of indigenous livestock, tools and methods for conducting breed surveys, classification of African livestock populations, molecular genetic characterization, the genetic history of cattle in Africa and linking livestock to human history, genetic history and geography of African sheep, genetic history and geography of African chickens, genetic history and geography of the African dromedary, establishment of a joint laboratory with CAAS in Beijing and expansion into Asia, ILRI's genetic characterization as a catalyst for international interest, genetics of trypanotolerance and genetics of resistance to gastrointestinal parasites.
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Shahidi, R., M. Cougnon, E. Struyf, C. Van Waes, M. C. Van Labeke, and D. Reheul. "Parameters Influencing Preference by Sheep in Soft Leaved Tall Fescue Genotypes." In Breeding in a World of Scarcity, 283–87. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28932-8_42.

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Goddard, I. G. H. "Sheep Breeding in Jordan and a Proposed Awassi Breed Improvement Programme." In Increasing Small Ruminant Productivity in Semi-arid Areas, 181–88. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-1317-2_15.

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Cougnon, M., J. Baert, and D. Reheul. "The Sense of Testing Sheep Preference in Tall Fescue Variety Evaluation." In Breeding Grasses and Protein Crops in the Era of Genomics, 78–82. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89578-9_14.

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Simm, G. "Current and Possible Future Application of In Vivo Assessment in Sheep Breeding Programmes." In Application of NMR Techniques on the Body Composition of Live Animals, 149–58. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-011-9705-2_13.

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Flores, M. Julia, and José A. Gámez. "Breeding Value Classification in Manchego Sheep: A Study of Attribute Selection and Construction." In Lecture Notes in Computer Science, 1338–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11552451_185.

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Carcangiu, V., M. C. Mura, G. M. Vacca, M. L. Dettori, M. Pazzola, S. Luridiana, and P. P. Bini. "Improvement of the reproductive efficiency for the development of the Sardinian sheep breeding." In New trends for innovation in the Mediterranean animal production, 82–85. Wageningen: Wageningen Academic Publishers, 2012. http://dx.doi.org/10.3920/978-90-8686-726-4_12.

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Conference papers on the topic "Sheep and sheep breeding"

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Ratnasari, Ina, and Dian Hakip nurdiansyah. "Feasibility Analysis of Breeding Sheep Garut." In 2016 Global Conference on Business, Management and Entrepreneurship. Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/gcbme-16.2016.21.

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Begembekov, K. N., A. A. Torekhanov, K. Z. Amanbaev, E. S. Akhanov, and E. B. Ospanov. "ECONOMIC EFFICIENCY OF BREEDING OF AKTOHAYSKY SHEEP IN SCAN FODDING CONDITIONS OF DESERT ZONES OF CENTRAL KAZAKHSTAN." In STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS Volume 2. DSTU-Print, 2020. http://dx.doi.org/10.23947/interagro.2020.2.516-520.

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The article presents the results of a study on the cost-effectiveness of breeding of Kazakh fat tail sheep, Edilbaev and Aktogay semi-coarse sheep in harsh climatic conditions, poor feed conditions with year-round grazing in the desert zone of Central Kazakhstan. It has been established that in this zone, the most profitable, both from the point of view of obtaining the highest, higher quality products, and economic efficiency, is the breeding of Aktogai populations of semi-coarse fat tail sheep.
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SKORYKH, Larisa, Vitaly GRINCHENKO, Michael AFANASYEV, and Nina KONIK. "THE INFLUENCE OF BIOPHYSICAL FACTORS ON PRODUCTIVITY AND BIOCHEMICAL COMPOSITION OF THE BLOOD OF SHEEPS." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.007.

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As the livestock industry, sheep breeding takes the third place in the world, this is one of the most extensive types of agriculture. Currently, the main attention in the sheep breeding is directed to increasing in meat productivity and improving the quality of products. The important technique that contributes to the increase and improvement of the quality of livestock production is the use of laser radiation. The article presents the results of research directed to studying of influence of low-intensity laser radiation on the organism of young sheep. The area of impact of laser radiation on the animal organism is defined. The positive influence of laser radiation on the growth and development of young sheep and their immune reactivity is established. The revealed regularity is confirmed by the bigger size of the live weight, increased energy of growth in all studied periods of ontogenetic development, the more developed factors of natural protection at the experimental animals. The effectiveness of the directed impact of laser puncture on the organism of young sheep has been proved to improve meat productivity and resistance. The developed method of laser puncture can be used to increase the meat productivity, safety and resistance of young sheep.
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Dondokova, E. B., L. A. Ishina, and V. A. Vershinina. "Improvement of Government Support System of Sheep Breeding in Zabaikalsky Krai." In International Conference on Policicies and Economics Measures for Agricultural Development (AgroDevEco 2020). Paris, France: Atlantis Press, 2020. http://dx.doi.org/10.2991/aebmr.k.200729.014.

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Stanciu, Mirela. "STUDY REGARDING THE SHEEP BREEDING IN ROMANIA, ACOORDING TO THE BIOECONOMIC AND ECOECONOMIC PRINCIPLES." In 13th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/be5.v2/s21.038.

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Matyukov, V. S., L. A. Kaneva, T. V. Tarabukina, and Ya A. Zharikov. "DEVELOPMENT OF SHEEP BREEDING IN THE FAR NORTH OF RUSSIA (INFORMATION AND ANALYTICAL REVIEW)." In TOPICAL ISSUES OF AGRICULTURAL DEVELOPMENT. Komi Republican Academy of Public Service and Management, 2021. http://dx.doi.org/10.19110/93206-022-34.

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Petrovic, Milun, Snezana Bogosavljevic-Boškovic, Simeon Rakonjac, Radojica Đokovic, Miloš Ži Petrovic, Vladimir Doskovic, and Biljana Veljkovic. "SISTEMI GAJENJA I PROIZVODNJE U ORGANSKOM OVČARSTVU I KOZARSTVU." In SAVETOVANJE o biotehnologiji sa međunarodnim učešćem. University of Kragujevac, Faculty of Agronomy, 2021. http://dx.doi.org/10.46793/sbt26.205p.

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Lamb production dominates in organic sheep production, while milk production is much less present and very rare. There are usually two basic systems of breeding in lamb production: fattening of lambs on pasture and combined fattening of lambs. In organic goat breeding, the most common is the organic production of milk and dairy products, primarily quality goat cheeses. The cultivation system is usually a combination of grazing (summer half of the year) and stable cultivation (winter half of the year). Such agriculture provides amortization of the negative effects of social development on the ecosphere and the human population as a whole.
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M. Saleh, Wafir, and Saad A. Hatif. "The Affect of Breeding Season of Iraqi Sheep in Relation to Number, Quality and Maturity Index of abattoir Ovarian Oocytes." In الملتقى العلمي الدولي المعاصر ‎‎‎للعلوم التربوية والاجتماعية والانسانية والادارية والطبيعية. شبكة المؤتمرات العربية, 2019. http://dx.doi.org/10.24897/acn.64.68.6014.

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Angstenberger, Vera. "Oh sheep!" In ACM SIGGRAPH 2012 Computer Animation Festival. New York, New York, USA: ACM Press, 2012. http://dx.doi.org/10.1145/2341836.2341878.

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Rosen, Dani. "Censor-sheep." In ACM SIGGRAPH 99 Electronic art and animation catalog. New York, New York, USA: ACM Press, 1999. http://dx.doi.org/10.1145/312379.312877.

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Reports on the topic "Sheep and sheep breeding"

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Morrical, Daniel G. Sheep Research Flock. Ames: Iowa State University, Digital Repository, 2003. http://dx.doi.org/10.31274/farmprogressreports-180814-633.

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Morrical, Daniel G., and L. James Secor. McNay Sheep Flock Production Parameters. Ames: Iowa State University, Digital Repository, 2006. http://dx.doi.org/10.31274/farmprogressreports-180814-585.

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Schommer, Timothy J., and Melanie M. Woolever. A review of disease related conflicts between domestic sheep and goats and bighorn sheep. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2008. http://dx.doi.org/10.2737/rmrs-gtr-209.

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Zhao, Xia, Suneel Onteru, Max F. Rothschild, and Dorian J. Garrick. Causative Gene Discovery for Sheep Inherited Disorders. Ames (Iowa): Iowa State University, January 2011. http://dx.doi.org/10.31274/ans_air-180814-678.

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Hogden, J., G. Papcun, I. Zlokarnik, and D. Nix. Analysis of wolves and sheep. Final report. Office of Scientific and Technical Information (OSTI), August 1997. http://dx.doi.org/10.2172/521574.

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Young, L., and C. Yde. Ural-tweed bighorn sheep wildlife mitigation project. Test accounts, June 1990. http://dx.doi.org/10.2172/6536405.

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Robbe-Austerman, Suelee, and Daniel G. Morrical. Johne’s Disease Status of the McNay Sheep Flock. Ames: Iowa State University, Digital Repository, 2006. http://dx.doi.org/10.31274/farmprogressreports-180814-2113.

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Hirsch, Dorothy. The Baldwin Sheep & Land Company, 1873-1910. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.7505.

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Yde, Chris A., Bob Summerfield, and Lewis Young. Ural-Tweed Bighorn Sheep Wildlife Mitigation Project, 1986 Annual Report. Office of Scientific and Technical Information (OSTI), February 1987. http://dx.doi.org/10.2172/901430.

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Christian Posbergh, Christian Posbergh. Making Moorit: Determining the Molecular Basis for Brown Colored Sheep. Experiment, July 2016. http://dx.doi.org/10.18258/7375.

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