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| Evaluation of Meat Production Performance and Carcass Quality of Five Hybrid Beef Cattle Breeds in Yunnan |
| YANG Kai, GAO Yue’e, HUANG Bizhi, WANG Ankui*, ZHANG Jicai, CHEN Yanmei |
| Yunnan Academe of Grassland and Animal Science, Kunming 650212, China |
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Abstract In this study, the first generation (F1) male offspring of Simmental × Yunnan yellow cattle, Shorthorn × Yunnan yellow cattle, Angus × Yunnan yellow cattle and Yunling × Yunnan yellow cattle and male Yunling cattle (n = 3 each) fattened for 120 days under the same feeding condition to 17 months of age were selected for slaughter performance test and carcass quality evaluation. The results showed that the dressing percentages of Yunling cattle, Yunling × Yunnan yellow cattle, Angus × Yunnan yellow cattle, Shorthorn × Yunnan yellow cattle and Simmental × Yunnan yellow cattle were 60.60%, 61.04%, 62.02%, 61.79% and 61.66%, respectively, the net meat percentages were 47.63%, 47.66%, 50.21%, 48.30% and 48.35%, respectively, and the carcass meat percentages were 75.62%, 74.30%, 80.93%, 76.88% and 76.48%, respectively. There was no significant difference in dressing percentage among all breeds. The net meat percentage of Angus × Yunnan yellow cattle was the highest, which was significantly higher than that of Yunling cattle and Yunling × Yunnan yellow cattle (P < 0.05), but not significantly different from Shorthorn or Simmental × Yunnan yellow cattle. Likewise, there was no significant difference in net meat percentage among the other four breeds. The carcass fat percentage of Angus × Yunnan yellow cattle was significantly lower than that of all other breeds, and the carcass bone percentage was significantly lower than that of Yunling × Yunnan yellow cattle, Shorthorn × Yunnan yellow cattle and Simmental × Yunnan yellow cattle (P < 0.05), but not significantly different from that of Yunling cattle. The proportion of superfine meat was the highest in Simmental × Yunnan yellow cattle and the lowest in Yunling × Yunnan yellow cattle; the proportion of high-grade meat was the highest in Shorthorn × Yunnan yellow cattle and the lowest in Angus × Yunnan yellow cattle; the proportion of highquality meat was the highest in Simmental × Yunnan yellow cattle and the lowest in Yunling × Yunnan yellow cattle.
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2022, Vol. 36 
