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| Effect of Growth-Period Nutrition on the Beef Quality of Different Locations along longissimus dorsi of Fattening Wannan Cattle |
| ZHANG Xinglong;YANG Yongzai;WANG Changshui;CAO Binghai |
| State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University,
Beijing 100193, China |
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Abstract The objective of this study was to find the most practical nutrition program for producing high-quality beef by studying how growth-period nutrition affected the beef quality of the highrib, ribeye and striploin segments of the longissimus dorsi muscles of fattening Wannan cattle. Thirty 7-month-old castrated Wannan cattle of similar weights were randomly and equally divided into five groups that were provided a feed concentrate at 1.9；, 1.6；, 1.3；, 1.0； and 0.7；of their body weight for twenty-four months and designated as G1.9, G1.6, G1.3, G1.0 and G0.7, respectively. The fattening period was three months and the feeding program was same. The results showed that the growth-period nutritional level and the feeding program of group G1.0, in which the concentrate was supplied at 1.0； of the body weight, had the best beef quality in the highrib, ribeye and striploin of fattening Wannan cattle and that there was a strong consistency among three beef samples, Wannan cattle had the potential of producing marbling even snowflake beef.
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2014, Vol. 28 
