Effects of jasmine residue on nutrient apparent digestibility,growth performance,slaughter performance,meat quality,and serum biochemical indicators of Longlin black goats

LÜ Lingyan; HU Xiangyun; LIU Mingjun; GU Guocai; WANG Yanling; WEI Mingsong; LIU Qingyou; WANG Xianwei

doi:10.13557/j.cnki.issn1002-2813.2025.03.003

Abstract：The experiment aims to explore the effects of replacing part of the feed with jasmine residue on the apparent digestibility,growth performance,slaughter performance,meat quality,and serum biochemical indicators of Longlin black goats.A total of 30 four-month-old Longlin black goats with body weight of(11.00±1.50)kg were selected for the experiment and randomly divided into an experimental group and a control group.Each group had 15 replicates,with one black goat per replicate.The experimental group was fed with 12％jasmine residue as a substitute for some of the basic feed,while the control group was only fed with basic feed.The pre trial period was five days and the formal trial lasted for 90 days.The results showed that the apparent digestibility of crude fiber and acid detergent fiber in experimental group were significantly increased by 5.58％,9.18％compared with control group(P＜0.05),while the apparent digestibility of crude protein was significantly decreased by 7.14％compared with control group(P＜0.05).The final weight,total weight gain,average daily gain,and average daily feed intake of experimental group were significantly increased by 10.89％,14.01％,13.68％,12.80％compared with control group(P＜0.05),and the ratio of feed to gain was significantly decreased by 1.96％compared with control group(P＜0.05).The live weight before slaughter,carcass weight,net meat weight,bone weight,slaughter rate,and net meat rate of experimental group were significantly increased by 10.17％,17.20％,16.89％,9.81％,6.33％,8.06％compared with control group,respectively(P＜0.05).Compared with the control group,the marbling score and cooked meat percentage of experimental group were significantly increased by 4.56％,3.69％(P＜0.05),respectively,and the shear force was significantly decreased by 7.16％(P＜0.05).The concentrations of essential amino acids,umami amino acids,total amino acids,α-linolenic acid,DHA,polyunsaturated fatty acids,and n-3 polyunsaturated fatty acids in experimental group were significantly increased by 14.90％,7.85％,5.76％,11.89％,3.41％,9.80％,34.16％compared with control group,respectively(P＜0.05).The concentrations of alanine aminotransferase,albumin,triglyceride,and calcium in experimental group were significantly increased by 14.91％,3.37％,38.23％,10.89％compared with control group(P＜0.05),respectively,while the total cholesterol content was significantly decreased by 23.69％compared with control group(P＜0.05).The results show that using 12％jasmine residue in the diet instead of the basal diet can improve nutrient apparent digestibility,growth performance,slaughter performance,meat quality and serum biochemical indicators of Longlin black goats.