Deciphering autosomal and X-linked genetic effects of early growth traits in Murciano-Granadina goats via a multivariate animal model.

ABSTRACT: This study aimed to quantify autosomal and sex-linked genetic parameters for early growth traits in the Murciano-Granadina goat breed. Data were collected from a commercial dairy herd in Ghaleh-Ganj, southern Iran. A total of 19,582 records for birth weight (BWT) and 9157 records for weaning weight (WWT) were analyzed, covering animals born between 2016 and 2023, descended from 460 bucks and 5382 does. Live weight measurements were used to calculate preweaning growth rate (PWGR), preweaning Kleiber ratio (PWKR), and preweaning growth efficiency (PWGE). Environmental effects were evaluated using aov package in R, and the optimal multivariate model was constructed by combining the best-fitting univariate models for each trait. Genetic parameters were estimated using this optimal multi

SUBMITTER: Ehsaninia J 

PROVIDER: S-EPMC12756649 | biostudies-literature | 2026 Mar

REPOSITORIES: biostudies-literature