In order to study the effects of probiotic composite on the growth performance,meat quality and immune performance of beef cattle,the experiment was designed as a one-way randomized trial,and Thirty healthy Belgian Blue Cattle of 12 months of age and weighing(400±20.05)kg were selected as test animals.The straight animals were randomly divided into 3 groups,test group 1 was the control group,and test groups 2 and 3 were the experimental groups.Five replicates of three cows each were conducted,with all three groups fed a basal diet for concentrates;test groups 2 and 3 were additionally supplemented with 200 mg/kg and 400 mg/kg of probiotic complex in the basal diet,respectively.The results showed that the addition of 400 mg/kg of probiotic complex in group 3 significantly increased the growth performance,meat quality and immune performance of beef cattle(P＜0.05).The addition of 200 mg/kg of probiotic complex in the test 2 groups improved the growth performance,meat quality and immune performance of beef cattle,but the differences were not significant(P＞0.05).In conclusion,the addition of different levels of compound probiotics can effectively improve the growth performance,meat quality and immune performance of beef cattle.It is recommended to add 400 mg/kg of compound probiotics with lactic acid Enterococcus faecalis:Saccharomyces cerevisiae:Bacillus cerevisiae(2∶2∶1)and total viable bacterial count≥1.3×1011 CFU/g in beef cattle feeding process.
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