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Effects of yellow rice wine lees on growth performance,nutrient digestibility and serum biochemical index of finishing pigs

Zhou Ying;Gu Linying;Hu Huijuan;  
A study was conducted to determine the effects of feeding amount of yellow rice wine lees(YRWL)on the growth performance,nutrient digestibility and serum biochemical index of finishing pigs.A total of 72 health pigs(Duroc× Landrace×Yorkshire)with an average initial body weight of 53 kg were randomly allocated to 3 groups by weight and sex. Each group included 3 pens(replicates)of 8 pigs each.Pigs in the control group were fed the corn-soybean meal diet.In the test group 1 and 2,partial soybean meal of the control diet were replaced by YRWL,accounting 14% and 18% of the diet, on the basis of isonitrogenous,isocaloric and amino acid balance.The feeding test lasted for 79 days after 7 days of adaptation period.The results showed that:(1)there were no significant differences of growth performance among groups(P 0.05),but pigs fed the diet containing 14% YRWL had a better performance;(2)compared with the control group,the apparent crude protein(CP) digestibility of test group 1 and test group 2 decreased by 2.83%(P 0.05)and 4.99%(P 0.05),respectively.In addition,there were no significant effect on apparent ether extract(EE),Ash,crude fiber(CF),Ca,P digestibility(P 0.05);(3)there were no significant differences on serum TP,ALB,GLU,Ca,TP,BUN contents,or ALP, GOT,GPT activities,or IgG,IgM,IgA levels among groups(P 0.05).In summary,YRWL had a high feeding value;14% YRWL-based diet had no negative effect on growth performance,feed gain ratio,serum biochemical parameters and immunity of finishing pigs.
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