Comparison between the gas chromatography and the near-infrared spectrometry on the estimation of genetic parameter of the fatty acid composition of intermuscular fat from Japanese black cattle

Abstract

The data of fatty acid composition of intermuscular fat on the graded surface from 1,095 Japanese black cattle were collected both by the handheld fiber-optic near-infrared spectrometry (NIR method) and the gas chromatography (GC method). The phenotypic correlations of fatty acid composition between estimated by NIR method and GC method were high (0.76-0.81), and genetic correlations were also high (0.92-0.97). The heritability of fatty acid composition by GC method (0.64-0.71) was higher than NIR method (0.39-0.45). The predicted breeding values of paternal 121 sires about oleic, monounsaturated, and saturated fatty acid composition were highly correlated between GC method and NIR method.