Effects of Closed-flock Reproduction on Carcass Performance, Meat Quality of Tibetan Pigs of Different Generations

doi:10.7668/hbnxb.2018.S1.010

Abstract

Abstract: In order to study the effects of closed-flock reproduction on carcass performance,meat quality of Tibetan pigs in different generations. Three generations of Tibetan pigs were slaughtered and their carcass and meat quality were measured. The results of principal component analysis and cluster analysis showed that the carcass performance of first-generation (F₁) Tibetan pigs was not different from fourth-generation (F₄) and fifth-generation (F₅). The pH and L value were not significant difference in different generations (P >0.05). However,F₁ had a higher cooked meat percentage (P <0.05),F₄ and F₅ had a better tenderness and toughness (P <0.05). There were significant differences in meat quality,amino acid structure and fatty acid structure between F₁ and F₄,F₅. The final analysis showed that the meat quality of Tibetan pigs changed after F₄ of closed-flock reproduction. Therefore,after long-term grazing,the carcass performance and meat quality of Tibetan pigs are relatively stable.

Key words: Tibetan pigs, Breed conservation, Closed-flock reproduction, Carcass, Meat quality

CLC Number:

S828

CHEN Ying, LIU Bin, LI Qiang, SHUAI Surong, TAN Ya, ZHANG Shunhua, ZHU Li. Effects of Closed-flock Reproduction on Carcass Performance, Meat Quality of Tibetan Pigs of Different Generations[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2018, 33(S1): 59-63. doi: 10.7668/hbnxb.2018.S1.010.

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