The influences of the genes and feed on oleic acid ratio in adipose tissue of Japanese Black cattle
2016
Endo, A. (Fukui Prefectural Livestock Experiment Station (Japan)) | Taga, C. | Sasaki, K.
We examined the relationship between genotype of Steroyl-CoA Desaturase (SCD) gene and fatty acid composition of bovine intermuscular fat, from blood of 231 Japanese Black breeding cattle and intermuscular fat of 110 Japanese Black steers. The composition of fatty acid in feed and grain size were also analyzed and compared with 4 farms in Fukui. As for the genotype of SCD gene, the proportions of genotype AA, VA, VV breeding cattle were 57.1%, 40.7% and 2.2% respectively, and that of steers were 51.8%, 41.8% and 6.4% respectively. In addition, The percentages of oleic acid (C18:1) of steers in each genotype group were 55.1+-3.0% in AA, 52.1+-2.4%in VA and 49.1+-2.9%in VV. Regarding feed, the oleic acid and linoleic acid in feed had no relation with that in intermuscular fat, and size of corn did not affect to percentage of oleic acid in intermuscular fat. Therefore, it could be said that percentage of oleic acid could make higher by considering genotypes, and that there is other factor to influence fatty acid composition with regard to feeding management.
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