Based on the Lo et al. (1997) model, this study points out differences in the genetic determinism between mule duck parental lines. Most overfeeding ability traits and fatty liver or muscle quality traits are more heritable
in the common line than in the Muscovy line. Thus, except for meat and liver color which have similar heritabilities
on common and Muscovy lines, traits related to fattening (fatty liver weight, liver lipid content,
PM skin and subcutaneous fat weight, abdominal fat weight), to muscle development (PM muscle weight,
thigh and shank weight, and carcass weight) and above all to BW have heritability values from 2 to 4 times
greater on the common line than on the Muscovy line.
Based on the Lo et al. (1997) model, this study points out differences in the genetic determinism between mule duck parental lines. Most overfeeding ability traits and fatty liver or muscle quality traits are more heritable
in the common line than in the Muscovy line. Thus, except for meat and liver color which have similar heritabilities
on common and Muscovy lines, traits related to fattening (fatty liver weight, liver lipid content,
PM skin and subcutaneous fat weight, abdominal fat weight), to muscle development (PM muscle weight,
thigh and shank weight, and carcass weight) and above all to BW have heritability values from 2 to 4 times
greater on the common line than on the Muscovy line.
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