Effects of arborvitae seeds on growth performance,slaughter performance,serum biochemical indexes,and nutritional composition of meat in Lüliang black goats

WANG Gaifang; WANG Yanlin

doi:10.13557/j.cnki.issn1002-2813.2026.01.005

Abstract：This experiment aimed to investigate the effects of substituting basal diet with different proportions of arborvitae seeds on the growth performance and meat quality of Lüliang black goats.A total of 120 Lüliang black goats(half male and half female)in the fattening period with an initial body weight of(30.00±2.20)kg were selected and randomly divided into four groups,with three replicates per group and 10 goats per replicate.The control group was fed a basal diet,while the substitution groups replaced the basal diet with equal amounts of 10％(group A),20％(group B),and 30％(group C)of arborvitae seeds,respectively.The pre-test period was seven days,and the formal test period was 30 days.The results showed that compared with the control group,group B achieved the highest final weight and average daily gain(ADG).The average daily feed intake(ADFI)and feed-to-gain ratio(F/G)were significantly reduced in substitution groups(P＜0.05).The carcass weight,carcass fat content(GR value),backfat thickness,and eye muscle area were significantly increased in the substitution groups(P＜0.05).Serum total protein(TP)and albumin(ALB)levels were significantly increased in the substitution groups(P＜0.05),while alanine aminotransferase(ALT)and aspartate aminotransferase(AST)activities,as well as urea nitrogen(BUN)and total cholesterol(TC)levels were significantly decreased(P＜0.05).Energy and cholesterol levels in the substitution groups were reduced,while protein and various mineral elements(sodium,calcium,iron,zinc,selenium)levels were increased.Iron and zinc levels differed significantly among substitution groups(P＜0.05).There was no significant differences in isoleucine,threonine,and methionine concentrations among groups(P＞0.05).Serine,valine,tyrosine,and glutamic acid levels were significantly increased in groups B and C(P＜0.05).Glycine,alanine,and lysine levels were significantly increased in the substitution groups(P＜0.05),while aspartic acid,histidine,leucine,and phenylalanine levels were significantly decreased(P＜0.05).The study shows that under the condition of replacing 20％of the basal diet with arborvitae seeds,the growth performance,slaughter performance and meat quality of Lüliang black goats can be improved.