Effect of Slaughter Weight on Carcass Traits,Meat Quality,Amino Acids and Fatty Acids in Muscle of Jiangkou Luobo Pigs |
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| Authors: | YANG Zhong-cheng GONG Yu YANG Mao-lin LIAO Qiao-ping YANG Chang-ping WU Yu-ping PAN Dao-xing LIU Ruo-yu |
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| Institution: | 1. Guizhou Management Station of Livestock Genetic Resources, Guiyang 550001, China;
2. Science and Technology Bureau of Jiangkou County, Tongren 554400, China;
3. Animal Husbandry Bureau of Jiangkou County, Tongren 554400, China;
4. Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, College of Animal Sciences, Guizhou University, Guiyang 550025, China |
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| Abstract: | In order to study the effect of slaughter weight on carcass traits,meat quality,amino acids and fatty acids in muscle of Jiangkou Luobo pigs,36 Jiangkou Luobo pigs (6 pigs of 60,70,80,90,100 and 110 kg body weight,respectively) were selected to determine carcass quality,meat quality characteristics and nutritious component and analyze their changes with weight.The results showed that before the body weight reaching to 80 kg,the slaughter rate and loineye area were increased fast,the contents of various amino acids were increased obviously.And when the body weight was 80 kg,the fatty acids were rich,including oleic acid and linoleic acid.When the body weight was more than 90 kg,there were excessive fat deposition in porcine somatic and the content of lysine,valine,threonine and other essential amino acids were extremely significant or significant differences (P<0.05;P<0.01).Generally Jiangkou Luobo pigs with the 80 kg body weight had the better carcass traits and meat quality,rich and ideal amino acid and fatty acid composition in muscle,especially had the high content of essential amino acids and flavor amino acid,and suitable proportion of unsaturated fatty acid and saturated fatty acid.Therefore,the reasonable slaughter weight of Jiangkou Luobo pigs was about 80 kg. |
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| Keywords: | Jiangkou Luobo pigs carcass traits meat quality amino acid fatty acid |
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