China Animal Husbandry and Veterinary Medicine ›› 2019, Vol. 46 ›› Issue (10): 2890-2901.doi: 10.16431/j.cnki.1671-7236.2019.10.010

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Evaluation of Muscle Amino Acids Composition of Chinese Indigenous Pig Breeds Based on FAO Pattern

FANG Chen1,2, ZHAO Xiaoqi1, YANG Fan1, ZOU Fuqiang1, YANG Minghua1, ZHAO Yanguang2, ZHAO Sumei1   

  1. 1. Key Laboratory of Animal Nutrition and Feed, Yunnan Agricultural University, Kunming 650201, China;
    2. Yunnan Animal Science and Veterinary Institute, Kunming 650224, China
  • Received:2019-01-28 Online:2019-10-20 Published:2019-10-21

Abstract: In-depth investigating of the muscle amino acid composition of Chinese indigenous pig breeds was conducive to improving pork quality and nutritional value,and promoting the protection,development and utilization of excellent pig species resources.Based on the studies of 15 Chinese indigenous pig breeds (Shengxian Spotted pig,Xiangxi Black pig,Tibetan pig,Rongchang Suckling pig,Diannan Small ear pig,Qinghai Bamei pig,Dulu pig,Huainan pig,Yimeng Black pig,Juema pig,Gansu White pig,Jiangquhai pig,Jiangxiang pig,Northeastern pig and Songliao Black pig),the 16 amino acid contents and taste amino acid contents of pig muscles were compared and 8 essential amino acids were evaluated by Food Organization of the United Nations (FAO) model,and factor analysis and systematic cluster analysis of 16 amino acid composition indicators were conducted.The results showed that the contents of essential amino acid,taste amino acid and total amino acid of Shengxian Spotted pig pork were the highest,which were 48.28,68.82 and 125.93 g/100 g,respectively,and its amino acid pattern was the closest to FAO amino acid pattern,and the essential amino acid content was much higher than the ideal protein content proposed by FAO.The top 4 principal components obtained by principal component analysis account for 89.499% of all mutations.The UPGMA clustering map based on principal component values classified 15 local pig breeds into 9 categories.In conclusion,this study indicated that there were significant differences in the amino acid composition and relative content of pork in Chinese indigenous pig breeds,among them,the meat flavor of Shengxian Spotted pig had higher nutritional value.

Key words: FAO model; indigenous pig breeds; amino acid content; amino acid score; ideal protein; factor analysis

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