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Parameter estimates for reproductive and carcass traits in Nelore beef cattle
(2017-04-01)
The aim of this study was to estimate genetic parameters for scrotal circumference at 365 (SC365) and 450 (SC450) days of age, age at first calving (AFC), ribeye area (REA), backfat (BF) thickness, and rump fat (RF) ...
Non-synonymous mutations mapped to chromosome X associated with andrological and growth traits in beef cattle
(Biomed Central Ltd, 2015-05-15)
Background: Previous genome-wide association analyses identified QTL regions in the X chromosome for percentage of normal sperm and scrotal circumference in Brahman and Tropical Composite cattle. These traits are important ...
Alternative adjustment of scrotal circumference for growth traits in Nellore cattle
(Brazilian Journal of Animal Science, 2022)
Fatores de correção do perímetro escrotal para efeitos de idade e peso ao sobreano de tourinhos nelore
(1998-11-01)
The aim of the study was to estimate adjustment factors to be used in genetic selection programs. Measurement data of scrotal circumference Nellore breed bulls from different herds raised on Brazilian tropical pasture ...
Estimates of genetic parameters for visual scores and their correlation with production and reproductive traits in Brahman cattle
(Sociedade Brasileira de Zootecnia, 2012-06-01)
The objective of this study was to evaluate the association of visual scores of body structure, precocity and muscularity with production (body weight at 18 months and average daily gain) and reproductive (scrotal ...
Parâmetros genéticos e tendências genéticas para características reprodutivas e de crescimento testicular em bovinos guzerá
(2015-01-01)
This study aimed to estimate genetic parameters and genetic trends for reproductive traits and testicular growth in Guzerá cattle. Variance components were estimated through two-trait analyses using the restricted maximum ...
GENETIC PARAMETERS AND GENETIC TRENDS FOR TESTICULAR GROWTH AND REPRODUCTIVE TRAITS IN GUZERA CATTLE
(Univ Fed Rural Semi-arido-ufersa, 2015-01-01)
This study aimed to estimate genetic parameters and genetic trends for reproductive traits and testicular growth in Guzera cattle. Variance components were estimated through two-trait analyses using the restricted maximum ...
Fatores de correção do perímetro escrotal para efeitos de idade e peso ao sobreano de tourinhos nelore
(1998-11-01)
The aim of the study was to estimate adjustment factors to be used in genetic selection programs. Measurement data of scrotal circumference Nellore breed bulls from different herds raised on Brazilian tropical pasture ...