PSXII-2 Effect of TG5 (c.-422C>T) Polymorphism on Fatty Acid Composition of Muscle Tissue in Bull

Abstract Intensive fat deposition is accompanied by an increased synthesis of saturated and monounsaturated fatty acids, resulting in a decrease the proportion polyunsaturated acids muscle tissue. The TG5 (c.-422C >T) polymorphism associated with metabolism Bos Taurus. aim research was to study effect on acid composition tissue Hereford bulls. Polymorphism analyzed polymerase chain reaction (PCR) restriction fragment length (RFLP) methods. lipids determined gas-liquid chromatography “Kristall-4000 Lux” chromatograph (Russia). bulls were slaughtered at 15 months age. Two groups TG5CC TG5CT genotypes formed according results genotyping. total share SFA MUFA muscles genotype 71.2% exceeded indicators their peers 1.0%. These data consistent inter- intramuscular fat, as well subcutaneous adipose better quality terms essential content, which accounted for 29.8%. Bulls outperformed content palmitic 0.74% behenic 0.02% among palmitoleic 0.67% linoleic 1.07%, linolenic 0.15 % arachidonic 0.05% acids. maximum stearic (by 1.72%) oleic 0.72%) observed group genotype. greatest 0.08 units) ratio unsaturated indicated best Thus, intensity carriers had negative impact meat.