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Genetic analysis on accumulated productivity and calving intervals in Nelore cattle
(2015)
The aim of this study was to estimate genetic parameters for accumulated productivity (ACP), first calving interval (CI1), second calving interval (CI2), and mean calving interval (MCI) in Nelore beef cattle. The ACP trait ...
Genetic parameters for performance and carcass traits in a paternal 1 lineage of broiler
(2020-01-01)
The objective of this study was to estimate variance components for performance and carcass traits in a paternal broiler line. The (co)variance components were estimated by the restricted maximum likelihood method applied ...
Genetic parameters for post-weaning visual scores and reproductive traits in Suffolk sheep
(2018-01-01)
The aim of this study was to estimate the coefficients of heritability and genetic correlations among visual scores (conformation, CPW; precocity, PPW; musculature, MPW ) and reproductive traits: age at first lambing (AFL) ...
Genetic and environmental effects on scores of conformation, precocity and muscling in long yearling Nellore cattle
(2015-01-01)
The visual scores for conformation (C), precocity (P) and muscle (M) are used to indirectly assess traits related to termination and carcass composition. This study analyzes how age of dam at calving (AC), long yearling ...
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) ...
Estimativas de parâmetros genéticos para características morfométricas em cavalos Quarto de Milha de Corrida
(2014)
With highlighted sprint ability, the racing line is important segment within the Quarter Horses breed, with huge impact on agribusiness. Theseanimals have noted morphological differences when compared to other lines within ...
Genetic parameters for rank of the Santa inês sheep in agricultural fairs using bayesian procedures
(2016-11-02)
The aim of this study was to estimate the genetic parameters for the ability of a sheep to rank among the top three in its age category (ABI3) and for its total score (TS) on the judgement championships held in different ...
Genetic parameter estimates and principal component analysis on performance and carcass traits of a terminal pig sire line
(Taylor &francis As, 2014-07-03)
This study aimed to estimate genetic parameters for five traits related to performance and carcass in a terminal pig sire line using multitrait (MUV) and reduced rank animal models, and to analyze the relationship between ...
Effects of genotype x environment interaction on the estimation of genetic parameters and gains in Nile tilapia
(Springer, 2020)
Nile tilapia (Oreochromis niloticus) is the major fish species produced in Brazil, a country with a vast territory and great climate diversity. This study assessed the effects of the genotype x environment interaction on ...
Quantitative genetic variation for resistance to the parasite Ichthyophthirius multifiliis in the Neotropical fish tambaqui (Colossoma macropomum)
(2020-07-01)
Tambaqui (Colossoma macropomum) is the main native fish produced in continental aquaculture from South America. However, its production has been negatively affected by significant economic losses due to frequent outbreaks ...