Effects of Different Feeding Methods on the Quality of Jiangcheng Beef

HE Shichun;CHENG Yue;LI Qing;ZHANG Huanfang;XU Zhenghong;WU Dongwang;HU Chenglong;YANG Shuli;MAO Huaming;Faculty of Animal Science and Technology,Yunnan Agricultural University;Yunnan Key Laboratory of Animal Nutrition and Feed;Jiangcheng County Animal Husbandry Workstation;

Jiangcheng beef;;feeding method;;meat quality;;nutrient content

The aim was to study the effects of different feeding methods on the quality of Jiangcheng beef,and obtain the best meat quality of Jiangcheng beef.24 Jiangcheng beef aged about 2.5 years old and in good health were selected,including 9 bulls and 15 cows,which were randomly divided into 3 groups according to sex,8 in each group(3 bulls and 5 cows).The first and second groups were fed in house.On the basis of free feeding of whole plant corn silage,each cow was fed with concentrate supplement 2 kg(concentrate supplement group) and concentrate 1 kg(concentrate group) per day.The third group was fed on artificial grassland(grazing group).After 90 days of feeding,4 beefs were selected from concentrate supplement and concentrated groups,6 beefs were selected from grazing group,half male and half female,a total of 14 slaughtering experiments were carried out to determine the meat quality of Jiangcheng beef.The results showed that different feeding methods had a certain effect on the quality of Jiangcheng beef.After feeding concentrate supplement and concentrated feed,there were significant differences in water loss rate,shear force,crude fat and crude protein among concentrate supplement,concentrated and grazing groups(P<0.05),but there were no significant differences among other components(P>0.05).However,the beef quality of concentrate supplement and concentrate groups were better than that of grazing group,such as eye muscle area,backfat thickness,marbling pattern,and so on.Different feeding methods had a certain effect on the quality of Jiangcheng beef.After supplementing concentrate supplement and concentrate,the concentrate supplement and concentrate groups were better than grazing group in meat quality.The results showed that the meat quality of Jiangcheng beef could be improved by supplementing concentrate supplement and concentrate in the process of feeding,and the development of meat performance had a good prospect.The results of this study provided a theoretical basis for reasonable feeding and improving meat quality of Jiangcheng beef.