营养水平对PRKAG3基因表达量及对肉质影响的研究

ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2008, Vol. 39 ›› Issue (8): 1056-1061.

• 动物营养 • Previous Articles Next Articles

Effect of Nutritional Level on PRKAG3 Gene Expression and Pork Quality

LI Meng-yun^1,2，YU Bing¹，ZHANG Ke-ying¹，CHEN Dai-wen¹

1.Institute of Animal Nutrition, Sichuan Agricultural University, Ya’an 625014, China；2.Zhengzhou College of Animal Husbandry and Engineering, Zhengzhou 450011, China

Received:1900-01-01 Revised:1900-01-01 Online:2008-08-24 Published:2008-08-24
Contact: CHEN Dai-wen

Abstract

Abstract: 12 DLY pigs(70 kg) were randomly divided into two groups with diets of high (DE 13.81 MJ/kg, CP 14%) and low (DE 12.55 MJ/kg, CP 11%) nutritional level,respectively. All pigs were slaughtered when their weight are about 100 kg, and determined PRKAG3 gene expression, carcass characteristics and meat quality traits. The results showed that low nutritional level increased PRKAG3 gene expression(P>0.05).High nutritional level increased dressing percentage, lean percentage, loin muscle area, a, b and L values（P>0.05）, but drip loss was significantly lower than that of low nutritional level(P<0.05). PRKAG3 gene expression was positive relative to lean percentage, loin muscle area, a value, b value and drip loss（P>005）, but significantly negative relation to pH2(P<0.05). These results suggested that nutritional level influenced PRKAG3 gene expression and so influenced meat quality.

Key words: pigs, nutritional level, PRKAG3 gene, gene expression, meat quality

LI Meng-yun;YU Bing;ZHANG Ke-ying;CHEN Dai-wen. Effect of Nutritional Level on PRKAG3 Gene Expression and Pork Quality[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2008, 39(8): 1056-1061.

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Effect of Nutritional Level on PRKAG3 Gene Expression and Pork Quality

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