Effects of Medium-short Chain Fatty Acid Esters on Growth Performance,Meat Quality and Blood Biochemical Indexes of Cherry Valley Meat Duck
The purpose of this experiment was to investigate the effects of medium-short chain fatty acid triglyceride supple-mentation on growth performance,muscle quality and blood biochemical indexes of Cherry Valley meat duck.A total of 324 male Cherry Valley meat ducks were randomly divided into 3 groups with 6 replicates per group and 18 ducks per replicate.The con-trol group was fed basal diet,and the experimental groups were fed the basal diet supplemented with 500 mg/kg and 2 000 mg/kg acid Suanru S(containing 12%tributyrin and 40%glycerol monolaurate),respectively.The experiment period was 42 days.The results showed that dietary medium-short chain fatty acid esters had no significant effect on the growth performance of the ducks(P>0.05).Medium-short chain fatty acid esters had an increasing trend on breast muscle index of ducks(0.05≤P<0.10),and di-etary supplementation of 500 mg/kg medium-short chain fatty acid esters significantly increased the cross-sectional area of breast muscle fiber of ducks(P<0.05).In addition,dietary supplementation of 500 mg/kg and 2 000 mg/kg medium-short chain fatty acid esters significantly increased the redness value of ducks 45 min after slaughter(P<0.05),significantly increased the plasma lactate dehydrogenase activity of ducks(P<0.01),but significantly decreased the total protein(P<0.05)and corticosterone content(P<0.05).In conclusion,dietary supplementation of 500 mg/kg tributyrin and laurate monoglyceride could promote the muscle fiber cross-sectional area,improve the breast muscle redness after slaughter,reduce the blood corticosterone level,and had no adverse effects on growth performance of cherry Valley duck.
万方数据
维普
