Effects of Perilla Seed Extract on Intramuscular Fat Deposition in Fattening Cattle

ZHANG Haibo

doi:10.3969/j.issn.1006-267x.2019.04.049

Chinese Journal of Animal Nutrition >

2019 , Vol. 31 >Issue 4: 1897 - 1903

DOI: https://doi.org/10.3969/j.issn.1006-267x.2019.04.049

Molecular Nutrition

Effects of Perilla Seed Extract on Intramuscular Fat Deposition in Fattening Cattle

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College of Life Science and Environmental Resource, Yichun University, Yichun 336000, China

Received date: 2018-09-21

Online published: 2019-04-16

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Abstract

This experiment was conducted to study the effects of perilla seed extract on the growth performance, slaughter performance, meat quality and intramuscular fat (IMF) deposition related gene expression in fattening cattle. Twenty fattening cattle (Simmental cattle×local yellow cattle) were randomly divided into 2 groups with 10 heads per group. The cattle in control group were fed a basal diet, and those in experimental group were fed the basal diet supplemented with 0.03% perilla seed extract (DM basis), that was 0.04‰ perilla seed extract active ingredient (DM basis). The test was 120 days. The results showed as follows:1) compared with the control group, diet supplemented with perilla seed extract had no significant effects on initial weight, final weight, average daily gain, average daily dry matter intake, feed/gain, carcass weight, net meat weight, slaughter rate, carcass meat production rate, longissimus dorsi muscle pH and longissimus dorsi muscle water holding capacity (P>0.05). 2) Compared with the control group, diet supplemented with perilla seed extract significantly increased the longissimus dorsi muscle IMF content (P<0.05), and significantly reduced the longissimus dorsi muscle shear force (P<0.05). 3) Compared with the control group, diet supplemented with perilla seed extract significantly increased the activities of fatty acid synthetase (FAS) and acetyl coenzyme A carboxylase (ACC) in longissimus dorsi muscle of fattening cattle (P<0.05), and significantly decreased the activities of hormone sensitive lipase (HSL) and carnitine transferase 1 (CPT-1) (P<0.05). 4) Compared with the control group, diet supplemented with perilla seed extract significantly increased the relative expression levels of sterol regulator element binding protein-1 (SREBP-1), FAS, ACC and peroxidase activation receptor gamma (PPARγ) genes in longissimus dorsi muscle of fattening cattle (P<0.05), and significantly decreased the relative expression levels of HSL and CPT-1 genes (P<0.05). In conclusion, diet supplemented with perilla seed extract can up-regulate the expression of fatty acid synthesis-related genes (SREBP-1, FAS, ACC and PPARγ) and down-regulate the expression of fatty acid decomposition related genes (HSL and CPT-1) in longissimus dorsi muscle of fattening cattle, so as to increase the activities of fatty acid synthesis key enzymes (FAS and ACC) and decrease the activities of fatty acid decomposition key enzymes (HSL and CPT-1) to promote IMF deposition.

Key words： fattening cattle; perilla seed extract; intramuscular fat; gene expression

Cite this article

ZHANG Haibo . Effects of Perilla Seed Extract on Intramuscular Fat Deposition in Fattening Cattle[J]. Chinese Journal of Animal Nutrition, 2019 , 31(4) : 1897 -1903 . DOI: 10.3969/j.issn.1006-267x.2019.04.049

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