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Aromatase gene and its effects on growth, reproductive and maternal ability traits in a multibreed sheep population from Brazil Genet. Mol. Biol.
Lôbo,Ana Maria Bezerra Oliveira; Lôbo,Raimundo Nonato Braga; Paiva,Samuel Rezende.
We determined the polymorphism C242T of the aromatase gene (Cyp19) and its allelic frequency, as well as the effect of the variants on productive and reproductive traits in 71 purebred Santa Inês sheep, 13 purebred Brazilian Somali sheep, nine purebred Poll Dorset sheep, and 18 crossbred 1/2 Dorper sheep. The animals were genotyped using the PCR-RFLP technique. The influence of the animal's genotype on its performance or on the performance of its lambs was analyzed by the least square method. Another factor assessed was the importance of the animal's genotype in analysis models for quantitative breeding value estimates, and whether there were differences among the averages of breeding values of animals with different genotypes for this gene. In the sample...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Body weight; Lambing interval; PCR-RFLP; Polymorphism; SNP; Litter weight.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000300010
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Reproductive performance of Santa Inês ewes fed protected fat diet. Repositório Alice
COSTA, R. L. D. da; FONTES, R. da S.; CUNHA, E. A. da; BUENO, M. S.; QUIRINO, C. R.; AFONSO, V. A. C.; OTERO, W. G.; SANTOS, L. E. dos; DIAS, A. J. B..
The objective of this work was to evaluate the reproductive performance of Santa Inês ewes fed a diet supplemented with protected fat. Intervals from lambing to first clinical estrus and to conception, conception rate, prolificacy, live weight and body condition were determined. After lambing, 60 ewes and their offsprings were weighted and randomly assigned to three treatments, based on age, body weight and number of born lambs. Treatments consisted of: control diet, or control diet plus 30 g of protected fat, from lambing to day 25 of post-lambing (Sup25), or to day 60 of post-lambing (Sup60). Out of 60 evaluated ewes, 93.3% returned to estrus, and 74.5% got pregnant, with 73.53% lambing rate and 196.5 days lambing interval. The average periods from...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Ovis aries; Conception rate; Estrus; Lambing interval; Nutrition.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/901803
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Reproductive performance of Santa Inês ewes fed protected fat diet PAB
Costa,Ricardo Lopes Dias da; Fontes,Reginaldo da Silva; Cunha,Eduardo Antonio da; Bueno,Mauro Sartori; Quirino,Celia Raquel; Afonso,Vivian Alves Costa; Otero,Walter Guimarães; Santos,Luis Eduardo dos; Dias,Ângelo José Burla.
The objective of this work was to evaluate the reproductive performance of Santa Inês ewes fed a diet supplemented with protected fat. Intervals from lambing to first clinical estrus and to conception, conception rate, prolificacy, live weight and body condition were determined. After lambing, 60 ewes and their offsprings were weighted and randomly assigned to three treatments, based on age, body weight and number of born lambs. Treatments consisted of: control diet, or control diet plus 30 g of protected fat, from lambing to day 25 of post-lambing (Sup25), or to day 60 of post-lambing (Sup60). Out of 60 evaluated ewes, 93.3% returned to estrus, and 74.5% got pregnant, with 73.53% lambing rate and 196.5 days lambing interval. The average periods from...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ovis aries; Conception rate; Estrus; Lambing interval; Nutrition.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000600013
Registros recuperados: 3
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