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Heritability and genetics correlations for body weight in escargots

Freitas, Felipe André Oliveira; Carrara, Eula Regina; Ladeira, Giovanni; Lourenço, Matheus; Leôncio, Thamires; Miranda, Claudiana; César, Fernanda Larissa; Gaya, Leila de Genova.
Acta sci., Anim. sci; 45: e58130, 2023. tab
Artigo em Inglês | VETINDEX | ID: biblio-1413152


The objective of this study was to estimate genetic parameters for body weight at 60 (P60), 90 (P90), and 120 (P120) days of age in escargotsof the subspecies Cornu aspersum maximum, evaluating the influence of fixed and covariable effects on these traits. The data used were collected from escargotskept in a total confinement system. The significant fixed effects and covariates for these traits were tested in a general linear model by the F-test, considering a level of significance of 5%. Both the fixed effects of box and birth year and the quadratic effect of age of weighing as a covariate were significant (p < 0.05) for P60, P90, and P120. The Restricted Maximum Likelihood (REML) methodology was used to estimate (co)variance components and genetic parameters. High heritability for P60, P90, and P120 (0.38, 0.55 and 0.78, respectively) and high genetic correlations (0.58 to 0.77) among the traits were observed. The genetic parameterscan be used as a basis for studies and practical applications to increase zootechnical indexes in this population.(AU)
Biblioteca responsável: BR68.1