Expressão gênica de IGF-I e GHR no fígado e no músculo do peito de codornas de corte suplementadas com diferentes níveis de metionina em duas gerações sucessivas [IGF-I and GHR
Foram avaliadas 250 codornas de corte na fase de postura dos 42 aos 126 dias em duas gerações sucessivas. O modelo animal levou em consideração os efeitos fixos de geração e os efeitos aleatórios aditivos e residuais, em uma análise unicaracterística. As características avaliadas foram peso da ave, produção e massa de ovos, consumo alimentar e conversão alimentar por massa e dúzia de ovos; peso do ovo, casca, clara e gema e cor da gema como características internas dos ovos e largura e comprimento dos ovos, gravidade específica e altura de albúmen,
This study aimed to establish criteria for eliminating redundant variables, to know the magnitude of the data relationship, and to provide information that helps researchers in the use of the technique to analyze and interpret production data and egg quality. The data used in this work was obtained from four successive generations of the quail lineage developed by the Department of Animal Science of the Federal University of Pelotas. The characteristics were measured from the 42nd day of age, when the egg production period began, until 126 days of production, obtaining three 28 day periods (cycles) in the four successive generations, totaling 545 females. Of the twelve original variables, only seven demonstrated potential to be maintained in future experiments, representing a 42% exclusion. The main philosophy of this study was the analysis of the studied variables and made possible the understanding of the relationship and the correlations.
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