Дисертації з теми "Technology in sheep production"
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Kumalo, Molefi Petrus. "Characterization of sheep and goat production systems amongst small-scale farmers in the Southern Free State." Thesis, Bloemfontein : Central University of Technology, Free State, 2014. http://hdl.handle.net/11462/266.
Повний текст джерелаVos, 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.
Повний текст джерелаThe 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 were then exposed to different levels of supplemented light at 145 lux (16h, 24h and normal photoperiod). The animals were fed ad libitum with pellets containing 9.5 MJ ME/kg DM and 12% CP in open pens. The animals were weighed every 7 days while ultrasound scanning of the EMA and the BFT was done at the beginning and the end of the 35 day trial. The ADG, FCR and feed intake (FI) were calculated at the end of the trial. Linear body measurements including shoulder height, body length and heart girth were taken at day 1 and day 35 respectively. All the animals were slaughtered at the end of the trail. The carcasses were then weighed, graded and the FT was measured with a caliper. The final results of the study showed that no significant differences between the three treatment groups (consisting of wethers and rams) in terms of body measurements, ultrasound scanning ADG and FCR could be detected. However, a significant difference was found between the wethers and the rams in the whole trial for ADG. The ADG of the rams exposed to 16 hours of supplemented light was significantly better than the normal photoperiod and the 24 hour light supplementation group.
Tománek, Jiří. "Výroba součásti "Táhlo zadní"." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228385.
Повний текст джерелаNääs, Julia, and Michaela Martinez. "Svensk ull i textilproduktion. : En studie om vilka för- och nackdelar svenska textilföretag stött på i produktion med svensk ull." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-23502.
Повний текст джерелаThe majority of the wool produced by Swedish sheep has been discarded or burned for several years. At the same time, Swedish textile companies import tons of wool for millions of swedish crowns each year. This problem was brought to attention a few years ago and a number of Swedish companies have since started to produce products from the Swedish wool. In this qualitative study, an investigation was conducted to compile the pros and cons of producing textile products in Swedish wool. Semi-structured interviews have been conducted with ten different companies that are currently working with the material. The results of the study show that the biggest problem with wool production in Sweden is the lack of an organized infrastructure in purchasing and production. The advantage of producing textile products in Swedish wool is that it is a material with good properties for several applications. It is a sustainable choice of material as the wool is otherwise wasted. The proximity to the material also facilitates the control of the entire value chain being managed in an ethical and sustainable way.
Muzikant, Miroslav. "Výroba součásti z plechu - "Vanečka"." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229404.
Повний текст джерелаGlorieux, Emile. "Constructive cooperative coevolution for optimising interacting production stations." Licentiate thesis, Högskolan Väst, Avd för automationssystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-7685.
Повний текст джерелаChadwick, 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.
Повний текст джерелаFannon-Osborne, Amy Gail. "Hair Sheep Production in Temperate, Deciduous Appalachian Silvopastures." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/76825.
Повний текст джерелаMaster of Science
Campbell, Angus John Dugald. "The effect of time of shearing on wool production and management of a spring-lambing merino flock /." Connect to thesis, 2006. http://eprints.unimelb.edu.au/archive/00003254.
Повний текст джерелаSaatchi, 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.
Повний текст джерелаRorrer, Rebecca Kathleen. "Veterinary Therapeutic and Biologic Agents in Virginia Sheep Production." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/34574.
Повний текст джерелаMaster of Science
Moss, Angela R. "The effect of diet composition on methane production by sheep." Thesis, University of Nottingham, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243640.
Повний текст джерелаStevenson, Anne Graham. "Some effects of trichostrongylidosis on metabolism and production of sheep." Thesis, University of Glasgow, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292577.
Повний текст джерелаWard, Samantha. "The welfare and production implications of fostering methods in sheep." Thesis, University of Northampton, 2013. http://nectar.northampton.ac.uk/7050/.
Повний текст джерелаWeaver, Andrew Ryan. "Evaluation of terminal sire breeds for hair sheep production systems." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/80300.
Повний текст джерелаMaster of Science
Sweeny, Joshua. "Associations between worm egg count and production in Dorper sheep." Thesis, Sweeny, Joshua (2008) Associations between worm egg count and production in Dorper sheep. Honours thesis, Murdoch University, 2008. https://researchrepository.murdoch.edu.au/id/eprint/13509/.
Повний текст джерелаRude, Mark Edward. "Estimating spotted knapweed intake of sheep using NIRS technology." Thesis, Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/rude/RudeM0810.pdf.
Повний текст джерелаTadros, Kamal I. "Effects of Grazing Intensity by Sheep on the Production of Atiplex nummularia and Sheep Live Weight in Jordan." DigitalCommons@USU, 1987. https://digitalcommons.usu.edu/etd/3585.
Повний текст джерелаTuke, Amanda. "Grass production and sheep grazing on the island of Hirta, Scotland." Thesis, Imperial College London, 2001. http://hdl.handle.net/10044/1/11938.
Повний текст джерелаBeard, Andrew J. "Regulation of pituitary gonadotrophin production by inhibin in cattle and sheep." Thesis, University of Reading, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277110.
Повний текст джерелаLuo, Qiu Jiang. "IGF-1 production by primary cultured hepatocytes from rats and sheep." Thesis, University of Aberdeen, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314610.
Повний текст джерелаSart, Sarula. "Temperament and milk quality in sheep and cattle." University of Western Australia. School of Animal Biology, 2005. http://theses.library.uwa.edu.au/adt-WU2006.0030.
Повний текст джерелаCameron, 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.
Повний текст джерелаJin, Songqing. "Production technology and technology production : the economics of crop breeding in China /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.
Повний текст джерелаClaasen, Claasen. "The effect of agricultural production system on the meat quality of Dorper lambs." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/19896.
Повний текст джерелаENGLISH ABSTRACT: The aim of this study was to investigate the effect of South African production system (feedlot {FL-} or free-range {FR-}) and gender (ewes, rams or castrates) on growth and carcass characteristics of Dorper sheep. Male lambs (castrates and rams) grew twice as fast as ewes (P<0.05) under FL-conditions while much smaller differences were observed between gender groups in FR-lambs. FL-lambs produced heavier carcasses (P=0.0003) with higher dressing percentages (P<0.05) and greater carcass fatness levels (P<0.052) than FR- lambs. No differences attributable to production system were found on meat tenderness (as indicated by Warner Bratzler shear force strength) and on the intramuscular lipid concentration. In contrast, sensory evaluation results suggested that meat from FL-lambs was juicier and more tender than meat from FR-lambs. The sensory panel could not distinguish between FL and FR meat as far as the attributes of aroma and flavour were concerned. Cholesterol results indicated that for intermuscular fat, higher cholesterol levels were observed for FL-lambs than for FR-lambs. The level of palmitic acid (C16:0) was significantly higher (P=0.0375) in the Longissimus dorsi (LD) muscles of FL-lambs. For intramuscular fat from the Biceps femoris (BF) muscle, g-linolenic acid (C18:3n-6) was higher (P<0.0001) in FL- lambs. Results for intramuscular BF further indicated that ram lambs had the highest (P=0.0019) palmitic acid (C16:0) and sum of TUFA (P=0.0014), castrates had the highest (P=0.0260) α-linolenic acid (C18:3n-3) and g-linolenic acid (C18:3n-6), while ewe lambs had the highest (P=0.0014) SFA concentrations. Linoleic acid (C18:2n-6c) was significantly higher (P=0.0067) in the subcutaneous fat of FL-lambs while FR-lambs had more linolenic acid (C18:3n-3). For the kidney fat, FR-feeding increased (P < 0.05) stearic (C18:0), linolelaidic (C18:2n-6t), α-linolenic (C18:3n-3) and homo-g-linolenic acid (C20:3n-6) percentages. Conversely, linoleic acid (C18:2n-6c) was increased (P=0.0372) by FL-feeding. For the intermuscular fat, FR-lambs had higher linolenic acid (C18:3n-3) and SFA (P=0.0113 and P=0.0341) compared to FL-lambs. On the other hand, the sum of TUFA for the intermuscular fat was higher (P=0.0341) in FL-lambs compared to FR-lambs. Results from the study imply that the consumer may not necessarily be able to discern between meat from FR- or FL-lambs, although they may possibly discriminate against the increase in visible fatness of FL-lambs. No clear advantage of production system in terms of human health could be demonstrated as far as the proximate chemical composition and the fatty acid composition of the meat was concerned. The faster growth and the associated shorter production cycle of FL-lambs could be an advantage under certain production systems. However, it needs to be weighed against the cost of concentrate feeding and the preference consumers are likely to develop for lamb produced in natural environments.
AFRIKAANSE OPSOMMING: Die doel van die studie was om Suid Afrikaanse produksiestelsel (voerkraal {VK-} of veld {VD}) en geslag (ooie, hamels of ramme) op die groeivermoë en karkaseienskappe van die Dorperskape te bepaal. Manlike lammers (ramme and hamels) het twee keer vinniger (P<0.05) as ooilammers onder VK-toestande gegroei, terwyl kleiner verskille tussen geslagsgroepe by VD-diere waargeneem is. VK-lammers het swaarder karkasse (P=0.0003), hoër uitslagpersentasies (P<0.05) en meer karkas vet (P<0.052) as VD -lammers vertoon. Geen verskille as gevolg van produksiestelsel is op die sagtheid van vleis (soos aangedui deur Warner-Bratzler skeurkragwaardes) en die binnespierse vetinhoud gevind nie. Daarenteen het sensoriese analises aangedui dat vleis van VK-lammers sappiger en sagter as vleis van VD- lammers was. Die sensoriese paneel kon nie verskille aangaande die aroma en geur van vleis tussen VK- en VD-vleis onderskei nie. Cholesterolvlakke was hoër vir VK-lammers as by VD-lammers. Die vlak van palmitiese suur (C16:0) was hoër (P=0.0375) in die Longissimus dorsi (LD) spier van VK-lammers. Vir binnespierse vet van die Biceps femoris (BF) spier was g-linoleniese suur (C18:3n-6) hoër (P<0.0001) in VK-lammers. Resultate vir binnespierse vet van die BF spier het verder bewys dat ramlammers die hoogste (P=0.0019) palmitiese suur (C16:0) and totale onversadigde vetsure (P = 0.0014) getoon het, hamels die hoogste (P=0.0260) α-linoleniese suur (C18:3n-3) en g-linolenese suur (C18:3n-6) getoon het terwyl ooilammers die hoogste (P=0.0014) versadigde vetsuurvlakke getoon het. Linoliese suur (C18:2n-6c) was hoër (P=0.0067) in die onderhuidse vet van VK-lammers terwyl VD-lammers meer linoliese suur (C18:3n-3) gehad het. Resultate vir niervet het getoon dat VD-voeding die persentasies van steariese (C18:0), linoleladiese (C18:2n-6t), α-linoleniese (C18:3n-3) and homo-g-linoleniese suur (C20:3n-6) verhoog (P<0.05) het relatief tot VK-voeding. Linoliese suur (C18:2n-6c) is deur VK-voeding verhoog (P=0.0372). Vir intermuskulêre vet het VD-lammers hoër linoleniese suur (C18:3n-3) en versadigde vetsure (P=0.0113 en P=0.0341) as VK-lammers gehad. Die totale onversadigde vetsure vir tussenspiere vet was hoër (P=0.0341) in VK-lammers in vergelyking met VD-lammers. Resultate van hierdie studie dui daarop dat verbruikers nie noodwendig tussen vleis van VD- en VK-lammers sal onderskei nie, alhoewel hulle dalk teen die sigbaar vetter vleis van VK-lammers kan diskrimineer. Geen definitiewe voordeel in terme van menslike gesondheid kon op grond van die chemiese samestelling van die vleis bevestig word nie. Vinniger groei van VK-lammers, en die korter produksiesiklus wat daarmee verband hou, mag onder sekere produksie stelsels ʼn voordeel wees. Die voordeel moet teen die hoër koste van VK-voeding en die voorkeur van verbruikers vir lam produksie in natuurlike omgewing opgeweeg word.
Gulbenkian, Marcos. "The potentials for improvement of traditional sheep cheese production systems in Portugal." Thesis, University of Reading, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333431.
Повний текст джерелаNeto, Jaime Martins de Sousa. "Characterization of sheep and goat farming production systems in the brazilian northeasth." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16345.
Повний текст джерелаThe research aims to characterize this the creation of small ruminants in northeastern Brazil. To this end, initially we aimed to analyze the importance of cluster analysis for characterization of small ruminant production systems, using as a methodological tool to literature. Thus, it was observed that the cluster analysis methodology to characterize the animal production systems, is a technique used worldwide to identify the successful cases, advantageous aspects and obstacles in order to support programs that facilitate the leverage of farming. Subsequently, based on data collected from field research through interviews with 224 farmers in four northeastern states, it used the cluster analysis technique called cluster analysis, aimed specifically identify the homogeneous groups and check leveraging factors and restrictors groups in relation to the general characteristics of the producer and his property, the composition of herds, the socioeconomic aspects of producer and practices related to reproductive management, food and health. Thus, five homogeneous groups have been identified (or clusters) of small ruminant producers in northeastern Brazil. Group I represents 25% of the producers examined, where farms have little area, however, high stocking density, highlighting the presence of cattle more quantitative in that group, characterized as "small farms focused on milk production ". Group II contains 20% of analyzed producers, with the quantitative smaller herds among the groups, lower adoption of management practices and a higher frequency of exclusive breeders of goats and sheep, being defined as "small flocks not technified". Group III is the largest group, comprising 28% of respondents creators, where the goat herd significantly exceeds the sheep flock, being named as "traditional goat farmers". Group IV absorbs 16% of the most experienced producers, with the largest areas of observed properties, showing also a larger quantity of animals and a higher percentage of adoption of management practices, which are defined as "large farms technicality". Group V covers 11% of the youngest producers, the lowest group analyzed where mixed farms of sheep, goats and cattle are most frequent, representing 33% of producers in that group, named "emerging mixed farms." There was generally an increase in all groups regarding the feeding management used by Northeastern producers caused by the promotion of the development of the rural sector policies. They identified some obstacles to be overcome, especially with regard to reproductive health and herd management.
A pesquisa realizada neste pretendeu caracterizar a criaÃÃo de pequenos ruminantes na RegiÃo Nordeste do Brasil. Para tanto, inicialmente, teve como objetivo analisar a importÃncia da anÃlise de clusters para caracterizaÃÃo de sistemas de produÃÃo de pequenos ruminantes, utilizando-se como ferramenta metodolÃgica a pesquisa bibliogrÃfica. Dessa forma, observou- se que a metodologia de anÃlise de clusters, visando à caracterizaÃÃo dos sistemas de produÃÃo animal, à uma tÃcnica utilizada no mundo todo, visando identificar os casos exitosos, aspectos vantajosos e impedimentos, de forma a subsidiar aÃÃes que propiciem a alavancagem da atividade agropecuÃria. Posteriormente, a partir de dados coletados de uma pesquisa de campo, por meio de entrevistas com 224 produtores de quatro estados nordestinos, utilizou-se a tÃcnica de anÃlise de agrupamento denominada de anÃlise de clusters, visando, especificamente, identificar os grupos homogÃneos existentes e verificar os fatores alavancadores e restritores dos grupos em relaÃÃo Ãs caracterÃsticas gerais do produtor e de sua propriedade, à composiÃÃo dos rebanhos, aos aspectos socioeconÃmicos dos produtores e Ãs prÃticas relativas ao manejo reprodutivo, alimentar e sanitÃrio. Dessa forma, foram identificados cinco grupos homogÃneos (ou clusters) de produtores de pequenos ruminantes na RegiÃo Nordeste do Brasil. O grupo I representa 25% dos produtores analisados, onde as fazendas tÃm pouca Ãrea, no entanto, elevada densidade animal, destacando-se a presenÃa do rebanho bovino com maior quantitativo nesse agrupamento, caracterizando-se como âpequenas fazendas centradas na produÃÃo de leiteâ. O grupo II contÃm 20% dos produtores analisados, apresentando os menores quantitativos de rebanhos dentre os grupos, menor adoÃÃo de prÃticas de manejo e a maior frequÃncia de criatÃrios exclusivos de caprinos e ovinos, sendo definido como âpequenos rebanhos nÃo tecnificadosâ. O grupo III à o maior grupo, contendo 28% dos criadores entrevistados, onde o rebanho caprino supera sensivelmente o rebanho ovino, sendo nomeado como âcaprinocultores tradicionaisâ. O grupo IV absorve 16% dos produtores mais experientes, com as maiores Ãreas de propriedades observadas, apresentando, tambÃm, um maior quantitativo de animais e um maior percentual de adoÃÃo de prÃticas de manejo, sendo definidos como âgrandes fazendas tecnificadasâ. O grupo V abrange 11% dos produtores mais jovens, sendo o menor grupo analisado, onde os criatÃrios mistos de ovinos, caprinos e bovinos sÃo de maior frequÃncia, representando 33% dos produtores desse grupo, nomeado de âcriatÃrios mistos emergentesâ. Verificou-se, em geral, uma evoluÃÃo em todos os grupos no tocante ao manejo alimentar utilizado pelos produtores nordestinos, provocada por polÃticas de promoÃÃo do desenvolvimento do setor rural. Identificaram-se alguns entraves a serem superados, em especial no tocante ao manejo reprodutivo e sanitÃrio dos rebanhos.
Seymour, Deborah. "The Antibody Production by Swine in Response to Sheep Red Blood Cells." TopSCHOLAR®, 1985. https://digitalcommons.wku.edu/theses/2847.
Повний текст джерелаMidwood, Andrew J. "Application of the doubly labelled water technique for measuring CO2 production in sheep." Thesis, University of Aberdeen, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277286.
Повний текст джерелаKassem, Riad. "Reproduction in the Awassi ewe particular reference to increasing efficiency under semi-arid conditions." Thesis, Bangor University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328270.
Повний текст джерелаRichmond, Susan Emily. "Assessing the welfare of extensively managed sheep : an evaluation of animal-based welfare indicators." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/28677.
Повний текст джерелаColombo, Luca. "Technology adoption with production externalities." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=973252863.
Повний текст джерелаLudemann, M. R. "Development of an experimental approach to measure vitamin B12 production and absorption in sheep." Lincoln University, 2009. http://hdl.handle.net/10182/1424.
Повний текст джерелаTanner, Jonathan Christian. "Cut-and-carry feeding indigenous forage for sheep and manure-compost production on Java." Thesis, University of Reading, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262639.
Повний текст джерелаMuttukrishna, Shanthi. "In vitro effects of ovarian peptides and steroids on pituitary gonadotrophin production in sheep." Thesis, University of Reading, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315435.
Повний текст джерелаYaqoob, Muhammad. "Comparison of three terminal sire breeds for lamb production under upland grassland conditions in the North East of England." Thesis, University of Newcastle Upon Tyne, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313239.
Повний текст джерелаPereira, Igor Daniell Costa. "Economic values for production traits of Morada Nova meat sheep in a pasture based production system in semi-arid Brazil." Universidade Federal do CearÃ, 2010. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16343.
Повний текст джерелаThe economic values for traits of a meet sheep production system were calculated using Morada Nova hair sheep, raised under the conditions of native pasture in the Brazilian semi-arid region, as model. These economic weights were estimated using the equation of profit, profit = revenue â costs, after increase by one unit and 1% for each trait, evaluated on the average of the others. Whereas 1% increase in the trait, the economic values for lambing percentage (LP), litter size (LS), lambs mortality (LM), yearling mortality (YM), ewes and rams mortality (AM), female slaughter weight (FSW), male slaughter weight (MSW), ewe adult weight (EAW), ram adult weight (RW), carcass yield (CY), number of lambings per year (NLY), age at first lambing (AFL) and number of anthelminthic doses used per year (AC) were 1,439, 1,439, -0,254, -0,110, -0,054, 0,487, 0,767, -0,172, 0,005, 1,523, 1,439, -0,258 and -0,025, respectively, expressed in Brazilian currency (R$) per ewe per year. The traits that showed greater economic importance were CY, NLY, LP and LS. The traits that showed lower economic values were: RW, AC and AM. The production system with Morada Nova sheep grazing native âcaatingaâ pasture in Brazilian Northeast, exclusively for meat production, is profitable when taking into account all costs of production, including that of family labour. Carcass yield was shown to be an important selection objective. As it is expressed when the animal is slaughtered, further studies need to be carried out with this population to aid in the choice of appropriate selection criteria for the improvement of this trait.
Os valores econÃmicos para caracterÃsticas de produÃÃo de carne de ovinos foram calculados considerando-se como modelo o sistema de produÃÃo com a raÃa Morada Nova, criada sob as condiÃÃes de pastagem nativa do semi-Ãrido brasileiro. Os ponderadores econÃmicos foram estimados utilizando a equaÃÃo de lucro, lucro = receita - custos, para aumento de uma unidade e de 1 % em cada caracterÃstica, avaliada no valor mÃdio das demais. Com o aumento de 1% nas caracterÃsticas (R$ por ovelha ano) os valores econÃmicos para fertilidade ao parto (FP), prolificidade (PRO), mortalidade de cordeiros (MC), mortalidade de borregos (MB), mortalidade de ovelhas e carneiros (MA), peso de fÃmeas ao abate (PAF), peso de machos ao abate (PAM), peso maduro das matrizes (PM), peso dos reprodutores (PR), nÃmero de partos/ano (NPA), idade ao primeiro parto (IPP), rendimento de carcaÃa (RC) e nÃmero de tratamentos parasitÃrios/ano (TP) foram 1,439, 1,439, -0,254, -0,110, -0,054, 0,487, 0,767, -0,172, 0,005, 1,523, 1,439, -0,258 e -0,025, respectivamente. As caracterÃsticas que apresentaram maior importÃncia econÃmica foram RC, NPA, FP e PRO. As caracterÃsticas que apresentaram menor peso econÃmico foram: PR, TP e MA. O sistema de produÃÃo com ovinos Morados Nova em pastagem nativa (caatinga) no Nordeste brasileiro, exclusivamente para a produÃÃo de carne, Ã rentÃvel quando se toma em conta todos os custos de produÃÃo, incluindo o de mÃo de obra familiar. O rendimento de carcaÃa foi mostrado a ser um objetivo importante seleÃÃo. Como ela se expressa quando o animal for abatido, estudos adicionais necessitam de ser realizadas com esta populaÃÃo para ajudar na escolha adequada de critÃrios de seleÃÃo para a melhoria desta caracterÃstica.
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Повний текст джерелаDissertation (MMedVet)--University of Pretoria, 2010.
Production Animal Studies
unrestricted
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