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| Registros recuperados: 79 | |
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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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| SILVA, L. O. C. da; MARTIN NIETO, L.; ROSA, A. do N.. |
| O Centro Nacional de Pesquisa de Gado de Corte, da Empresa Brasileira de Pesquisa Agropecuária - Embrapa Gado de Corte - vem promovendo esforços no sentido de contribuir para o melhoramento genético da bovinocultura desde o início de sua implantação em Campo Grande, MS, em 1977. Na linha de seleção, destacam-se as atividades relacionadas com as avaliações genéticas que permitiram a Embrapa Gado de Corte, em parceria com a Associação Brasileira dos Criadores de Zebu, ter sido pioneira no lançamento de sumários de touros, no Brasil, trabalho que vem sendo realizado desde 1984. Delineado em 1990 e posto em execução a partir de 1992, o Programa de Avaliação de Touros Jovens veio agregar mais eficiência à avaliação nacional e somar resultados a várias outras... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Bovino de corte; Zebuíno; Avaliação; Evaluation; Brasil.; Melhoramento Genético Animal; Touro.; Animal breeding; Beef cattle; Bulls; Steers; Zebu.. |
| Ano: 2003 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325622 |
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| Pires,A.V.; Lopes,P.S.; Guimarães,S.E.F.; Guimarães,C.T.; Gomide,L.A.M.; Benevenuto Júnior,A.A.; Carmo,F.M.S.. |
| The current study was carried out to perform QTL mapping on swine chromosome 6 (SSC6) associated to meat quality traits. The F2 population was produced by outbreed crossing using two native Brazilian breed Piau boars and 18 commercial sows. A total of 557 F2 animals were genotyped for 13 microsatellite markers. The traits evaluated on the F2 population were: pH measured 45 minutes and 24 hours post mortem (pH 45, pH24, respectively), drip loss (DL), cooking loss (CL), total loss (TL), intramuscular fat content (IMF), objective tenderness (OT), lightness (L), redness (A), yellowness (B), hue angle (h) and chrome (c). Data were analyzed by multiple regression developed for analysis of outbreed line crosses, using the QTL Express Software. Significant QTL... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: QTL; Outbreed cross; Genetic; Molecular marker; Animal breeding. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000500006 |
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| FERRA, J. de C.; SERENO, J. R. B.. |
| ABSTRACT: The aim of this review is to show and illustrate an way clear and objective of the aspects involved in the artificial insemination in sheep. In this species the potential is great, therefore it is early in its productive and reproductive aspects, with eminence to the short interval between generations. In the program of artificial insemination (AI) the evaluation of the reproductive male is important and testicle, scrotal sac, penis and prepuce must be observed, and still, good libido, masculine aspects and espermograma inside of the normality standards. Some forms of collection and semen manipulation are described. The females must be selected by weight and age, or when reach 65% a 70% of adult weight, and that form reaches the sexual maturity.... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Melhoramento Genético Animal; Ovino; Reprodução Animal.; Artificial insemination; Animal reproduction; Animal breeding; Sheep.. |
| Ano: 2006 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570019 |
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| Registros recuperados: 79 | |
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