Interacción genotipo-ambiente para caracteres de calidad de la carne y de crecimiento en P. vannamei
2024
Chagour, Meriem
This study selected flesh composition, texture, and morphological traits in comparison to growth traits to investigate their additive genetic variation and their genetic and phenotypic correlations across different environments (high salinity and high density 'ASIN' versus low salinity and low density 'BASIN') in Penaeus vannamei, at harvest size. Flesh composition was assessed using NIR technology, while morphology was analyzed using electronic Coriolis foot. The average total length was 14.31 cm, and the weight was 24.93 g. Heritability estimates ranged from low to moderate (0.02 to 0.41) for growth traits, flesh composition, and morphological traits. Genetic correlations were positive and high among growth traits, negative and high between moisture versus lipids content, negative and low for proteins versus moisture and lipids content, and high for morphological traits. GxE interaction estimations for the same families in ASIN and BASIN environments indicated minimal interaction.
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