Informamos que as validações de submissão estarão suspensas de 20/12/2019 a 05/01/2020, devido ao recesso de final de ano
Now showing items 1-8 of 8
Effect of lactation length adjustment procedures on genetic parameter estimates for buffalo milk yield
(Genetics and Molecular Biology, 2011-01-01) [Artigo]
The objectives of this study were to estimate the genetic parameters for milk yield unadjusted and adjusted for days in milk and, subsequently, to assess the influence of adjusting for days in milk on sire rank. Complete ...
Genetic and environmental factors affecting ultrasound measures of longissimus muscle area and backfat thickness in Nelore cattle
(Livestock Science, 2008-09-01) [Artigo]
The aim of the present study was to evaluate the genetic and environmental factors affecting records of longissimus muscle area (LMA) and back fat thickness (BF) obtained between the 12th and 13th ribs, and rump fat thickness ...
Genetic associations between carcass traits measured by real-time ultrasound and scrotal circumference and growth traits in Nelore cattle
(Journal of Animal Science, 2010-01-01) [Artigo]
The aim of the present study was to evaluate the genetic correlations among real-time ultrasound carcass, BW, and scrotal circumference (SC) traits in Nelore cattle. Carcass traits, measured by real-time ultrasound of the ...
Genetic parameters for milk, fat and protein yields in Murrah buffaloes (Bubalus bubalis Artiodactyla, Bovidae)
(Genetics and Molecular Biology, 2010-01-01) [Artigo]
The objective of the present study was to estimate genetic parameters for test-day milk, fat and protein yields and 305-day-yields in Murrah buffaloes. 4,757 complete lactations of Murrah buffaloes were analyzed. Co-variance ...
Genotype by environment interaction for birth and weaning weights of composite beef cattle in different regions of Brazil
(Livestock Science, 2012-11-01) [Artigo]
The objectives of the present study were to characterize and define homogenous production environments of composite beef cattle in Brazil in terms of climatic and geographic variables using multivariate exploratory techniques ...
Models for genetic evaluation of Nelore cattle mature body weight
(Journal of Animal Science, 2008-11-01) [Artigo]
Records of 18,770 Nelore animals, born from 1975 to 2002, in 8 herds participating in the Nelore Cattle Breeding Program, were analyzed to estimate genetic parameters for mature BW. The mature BW were analyzed as a single ...
Selection for higher body weight in Nelore cattle is effective in achieving an increase of longissimus muscle area without reducing subcutaneous fat thickness
(Revista Brasileira de Zootecnia, 2012-06-01) [Artigo]
The objectives of this study were to estimate heritabilities and genetic and phenotypic correlations between carcass traits measured by ultrasound and other economically important traits generally used as selection criteria ...
Test-day milk yield as a selection criterion for dairy buffaloes (Bubalus bubalis Artiodactyla, Bovidae)
(Genetics and Molecular Biology, 2008-01-01) [Artigo]
Due to the great demand for buffalo milk by-products the interest in technical-scientific information about this species is increasing. Our objective was to propose selection criteria for milk yield in buffaloes based on ...