Effects of different energy feed on growth performance,slaughter performance,meat traits,amino acid,and fatty acid content of Guizhou black goats
The purpose of this experiment was to investigate the effects of different energy feed on the growth performance,slaughter performance,meat traits,and amino acid and fatty acid content in muscle of Guizhou black goats.Forty-five 6-month-old Guizhou black goats with body weight of(21.12±1.25)kg were randomly divided into three groups,with three replicates in each group and five goats in each replicate.The corn group,barley group,and wheat group were fed with mixed diets with corn,barley,and wheat as main energy feed,respectively.The pre-test period was seven days,and the formal test period was 90 days.The results showed that the average daily gain of barley group was 180.56 g,which was significantly higher than the other two groups(P＜0.05),and the slaughter rate of corn group and barley group was significantly higher than that of wheat group(P＜0.05).The drip loss,cooked meat rate,and dry matter content of corn group were the highest,while the crude fat content of wheat group was the highest.Sixteen kinds of amino acids,including seven essential amino acids and nine non-essential amino acids,were detected in mutton of each experimental group.The content of non-essential amino acids in barley group and wheat group was significantly higher than that in corn group(P＜0.05).A total of 37 fatty acids were detected in each experimental group,including 17 saturated fatty acids,nine monounsaturated fatty acids,and 11 polyunsaturated fatty acids.The content of saturated fatty acids and monounsaturated fatty acids in wheat group was the highest,and the content of polyunsaturated fatty acids in barley group was significantly higher than that in corn group and wheat group(P＜0.05).The study indicates that barley can improve the growth performance,slaughter performance,and the meat quality is relatively good of Guizhou black goats,which can be used as the main energy feed.
Guizhou black goatgrowth performanceslaughter performancemeat traitsamino acidfatty acid
国家科技期刊平台
NSTL
万方数据
维普
