›› 2019, Vol. 46 ›› Issue (7): 1935-1944.doi: 10.16431/j.cnki.1671-7236.2019.07.007

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Comparative Analysis of Body Size Indexes,Slaughter Performance, Meat Quality and Blood Indicators Between Yuxi Black Pigs and Queshan Black Pigs

WANG Mingyu1, ZHANG Chen1, XUE Yahui1, YE Jianwei1, HAN Xuelei1, QIAO Ruimin1, LI Xiuling1, LIU Xian2, WANG Xianwei2, WU Shengjun2, WANG Mingmin3, LI Xinjian1   

  1. 1. College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China;
    2. Henan Animal Husbandry General Station, Zhengzhou 450002, China;
    3. Luoyang Animal Husbandry Workstation, Luoyang 471000, China
  • Received:2018-11-05 Online:2019-07-20 Published:2019-07-22

Abstract:

To understand the slaughter performance and meat quality of Yuxi Black pigs,and compare these indexes with Henan indigenous Queshan Black pigs,eight Yuxi Black pigs (120.28 kg±6.96 kg) and eight Queshan Black pigs (117.80 kg±8.76 kg) under the same conditions were randomly selected to investigate the body size indexes,slaughter performance,meat quality and blood indicators according to related rules.The body size indexes (body height,body length,chest circumference and cannon circumference,etc.),slaughter performance (carcass weight,carcass length,skin rate,bone rate and slaughter rate,etc.),meat quality (meat color,marbling score,pH,intramuscular fat and crude ash,etc.),blood indicators (white blood cell count (WBC),red blood cell number (RBC),platelet number (PLT) and thrombocytocrit (PCT),etc.) and the amino acids content in muscle between Yuxi Black pigs and Queshan Black pigs were analyzed.The results showed that the body length,carcass length,skin rate and head weight of Yuxi Black pigs were significantly lower than that of Queshan Black pigs (P<0.05),whereas the backfat thickness,lean meat rate,spleen weight,heart weight and lion eye area of Yuxi Black pigs were extremely significantly or significantly higher than that of Queshan Black pigs (P<0.01;P<0.05).For the meat quality,the marbling score,pH45 min,pH24 h,and the contents of crude protein and crude ash of Yuxi Black pigs were significantly or extremely significantly lower than that of Queshan Black pigs (P<0.05;P<0.01),while the contents of moisture and phosphorus were significantly or extremely significantly higher than that of Queshan Black pigs (P<0.05;P<0.01).For the blood indicators,the PLT and PCT of Yuxi Black pigs were extremely significantly lower than that of Queshan Black pigs (P<0.01),but there was no significant difference of other blood indicators between Yuxi Black pigs and Queshan Black pigs (P>0.05).The contents of Arg,Val and His in Yuxi Black pigs were significantly or extremely significantly higher than that of Queshan Black pigs (P<0.05;P<0.01),and the content of Gly was extremely significantly lower than that of Queshan Black pigs (P<0.01).In conclusion,there was no significant difference in body size indexes,meat quality and blood indicators between Yuxi Black pigs and Queshan Black pigs,the slaughter performance of Yuxi Black pigs was slightly better than Queshan Black pigs,both of which could provide consumers with quality pork.

Key words: Yuxi Black pigs; Queshan Black pigs; body size index; slaughter performance; meat quality; blood indicator

CLC Number: