A5007110105- Genetic and phenotypic traits in livestock
- Animal Nutrition and Physiology
- Genetics and Plant Breeding
- Livestock Management and Performance Improvement
- Livestock and Poultry Management
Universidade Federal de Mato Grosso
2022-2024
The aim of this study was to estimate the best covariance function structure, by means Legendre polynomials using random regression models (RRM) describe genetic variability weight growth trajectory quails and parameters. Body records animals at 7, 14, 21, 28, 35, 42 days age were used. orders fit gradually increased in from 3 6 for comparison between Akaike information criteria included fixed effects contemporary group, coefficient on polynomial, coefficients direct additive genetic,...
Our aim was to evaluate the use and application of different nonlinear mixed models, as well compare them with approach in fixed for describing growth curve meat-type quails according gender. A total 15,002 15,408 records males females were used, respectively. The body weights regressed on age animals using models (Brody; Gompertz; Logistic, Morgan-Mercer-Flodin, Richards Von Bertalanffy). All model parameters considered fixed, whereas related asymptotic weight maturity rate fitted random...
No melhoramento animal em programas de avaliação genética, comumente ao longo do tempo, são acrescentados novos critérios seletivos relacionados à expressão carcaça, desempenho reprodutivo e econômico. Nesse sentido, características relacionadas produtivo fáceis mensurar com boas respostas seleção. Atualmente, a precocidade sexual é um critério amplamente utilizado como essencial para intensificação sistemas produção, porém, maioria dessas características, observam-se baixas estimativas...