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| Registros recuperados: 79 | |
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| Ambo,Marcel; Campos,Raquel de Lello Rocha; Moura,Ana Sílvia Meira Tavares; Boschiero,Clarissa; Rosário,Millor Fernandes do; Ledur,Mônica Corrêa; Nones,Kátia; Coutinho,Luiz Lehmann. |
| A linkage map is essential not only for quantitative trait loci (QTL) mapping, but also for the organization and location of genes along the chromosomes. The present study is part of a project whose major objective is, besides from construction the linkage maps, the whole genome scan for mapping QTL for performance traits in the Brazilian experimental chicken population. Linkage maps of chicken chromosomes 6 to 8, 11 and 13 were constructed based on this population. The population was developed from two generations of crossbreeding between a broiler and a layer line. Fifty-one microsatellite markers were tested, from which 28 were informative: 4, 8, 7, 4 and 5 for chromosomes 6, 7, 8, 11 and 13, respectively. A SNP located in the leptin receptor gene was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gallus gallus; Quantitative trait loci (QTL); Genetic maps; Microsatellite markers; Animal breeding. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000500001 |
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| BARIONI, L. G.; BELTRAME, R. T.; VELOSO, R. F.; SAUERESSIG, M. G.. |
| This publication presents and evaluates two methods for ex-ante analysis of the optimum number of recipient females in embryo transfer programs. The first method is determinist, based on algebraic deduction, while the second is based on stochastic simulation using a Monte Carlo method for generating the number of embryos in each collection. The results show that the deterministic method sustainability overestimate the biologic efficiency of the embryo transfer program and underestimate, consequently, the cost per pregnancy (up to 9,1%). The superiority of the stochastic simulations was more pronounced when considering high variability in the number of embrios produced, reduced number of donnors ana low cost per recipient. |
| Tipo: Comunicado Técnico (INFOTECA-E) |
Palavras-chave: Bovinae; Animal embryos.; Bovino; Embrião Animal; Melhoramento Animal; Reprodução Animal.; Animal breeding; Reproduction.. |
| Ano: 2003 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568679 |
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| Blecha,Isabella Maiumi Zaidan; Sousa,Isadora Inácio; Ferreira,Anna Beatriz Robottom; Feijó,Gelson Luis Dias; Torres Júnior,Roberto Augusto de Almeida; Siqueira,Fabiane. |
| ABSTRACT The objectives of this study were to genotype single nucleotide polymorphisms (SNP) AF159246:g.2959A>G (CAST/DdeI) and AF248054.2:g.6545C>T (CAPN4751) in beef cattle by PCR-RFLP (Polymerase Chain Reaction - Restriction Fragment Length Polymorphism), using the restriction enzyme DdeI for both SNP, and describe the use of these genotyping methodologies for the first time. For the SNP located in the CAST gene, new primers were designed, and for the SNP of the CAPN1 gene, the same primers previously described in the literature were used. Bonsmara, Caracu, Senepol, Nelore, and Angus bulls were chosen from among the most used bulls in breeding programs according to their genealogy and the lowest possible degree of parentage between them to ensure... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal breeding; Marker-assisted selection; PCR-RFLP; SNP; Tenderness. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100311 |
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| CARNEIRO JUNIOR, J. M.; ASSIS, G. M. L. de. |
| A pecuária de corte é caracterizada pelas fases de cria, recria e engorda, que podem ser exploradas como sistemas de produção isolados ou combinados. A cria, período que compreende da cobertura até a desmama, é considerada a fase mais importante da vida dos bovinos, pois o bezerro precisa alcançar, no intervalo de 7 a 8 meses, de 25% a 50% do peso final de abate. Nessa fase, preconiza-se não só a qualidade dos bezerros, mas também a condição corporal e saúde das vacas, dos touros e das novilhas que irão substituir as vacas de descarte. O objetivo de quem investe na cria de bovinos de corte é obter de cada vaca do rebanho um bezerro pesado e saudável por ano. Para obtenção de bezerros de qualidade é necessário o investimento em três pilares essenciais: o... |
| Tipo: Artigo de divulgação na mídia (INFOTECA-E) |
Palavras-chave: Período de cria; Manejo sanitário; Ganado de carne; Cruce; Cruce de animales; Desempeño reproductivo; Época de apareamiento; Nutrición animal; Rentabilidad; Selección artificial.; Gado de corte; Eficiência reprodutiva; Nutrição animal; Rentabilidade; Melhoramento genético animal; Seleção; Cruzamento animal; Beef cattle; Reproductive performance; Animal nutrition; Profitability; Animal breeding; Artificial selection; Crossing; Breeding season.. |
| Ano: 2016 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1068959 |
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| Di Lorenzo,Piera; Lancioni,Hovirag; Ceccobelli,Simone; Curcio,Ludovica; Panella,Francesco; Lasagna,Emiliano. |
| Over the last 20 years, the two uniparentally inherited marker systems, namely mitochondrial DNA and Y chromosome have been widely employed to solve questions about origin and prehistorical range expansions, demographic processes, both in humans and domestic animals. The mtDNA and the Y chromosome, with their unique patterns of inheritance, continue to be extremely important source of information. These markers played significant roles in farm animals in the evaluation of the genetic variation within- and among-breed strains and lines and have widely applied in the fields of linkage mapping, paternity tests, prediction of breeding values in genome-assisted selection, analysis of genetic diversity within breeds detection of population admixture, assessment... |
| Tipo: Journal article |
Palavras-chave: Animal breeding; Bovine domestication; Cattle genetic diversity; Genetic resources; Genome-assisted selection; Inherited marker systems. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582016000500010 |
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| Registros recuperados: 79 | |
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