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 nutrient contents of highrib, ribeye and striploin segments of the longissimus dorsi muscles of fattening Wannan cattle. Thirty 7-month-old and castrated Wannan cattle of similar weights were randomly and equally divided into five groups that were provided a feed concentrate at 1.9% (G1.9), 1.6% (G1.6), 1.3% (G1.3), 1.0% (G1.0 ) and 0.7% (G0.7) of their body weight for twenty-four months 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, for which the concentrate was supplied at 1.0% of the body weight, was most conducive to fat deposition and protein synthesis, and had the higher contents of fat and protein, lower moisture in the highrib, ribeye and striploin of fattening Wannan cattle, and there was a strong consistency among three beef samples. Wannan cattle could produce marbling even snowflake beef according to the national standard of beef grading.
张兴隆,杨永在,王长水,曹兵海. 育成期日粮营养对育肥皖南牛背最长肌部位肉常规营养物质含量的影响[J]. 肉类研究, 2015, 29(3): 11-14.
ZHANG Xinglong, YANG Yongzai, WANG Changshui, CAO Binghai. Effect of Growth-Period Nutrition on the Proximate Nutrient Contents of Different Locations along longissimus dorsi of Fattening Wannan Cattle. Meat Research, 2015, 29(3): 11-14.