牛至草粉对肉鸭生长性能、抗氧化、肉品质及经济效益的影响

文章旨在评估日粮添加牛至草粉对1～42 d肉鸭生长性能、抗氧化和肉品质的影响.试验选择1日龄、平均体重为(48.63±0.06)g的商品肉鸭560只,随机分为4组,每组5个重复,每个重复26只.对照组肉鸭饲喂基础日粮,处理1组肉鸭饲喂基础日粮+50 mg/kg抗菌肽,处理2组和处理3组分别饲喂基础日粮+20和40 mg...

Effects of oregano on growth performance,antioxidation,meat quality and economic value of meat duck

The aim of this study was to evaluate the effects of the addition of oregano to the diet on growth performance,antioxidant activity and meat quality of 1~42 d meat ducks.A total of 560 commercial meat ducks of aged 1 d with an average weight of(48.63±0.06)g were randomly divided into 4 groups with 5 replicates in each group and 26 in each replicate.In the control group,the meat ducks were fed the basic diet,in the treatment group,the meat ducks were fed the basic diet+50 mg/kg antimicrobial peptide,in the treatment group 2 and the treatment group 3 were fed the basic diet+20 and 40 mg/kg oregano,respectively.Results:Compared with the control group,the weight of meat ducks in the 20 mg/kg oregano group on day 42 was significantly increased by 7.23%(P<0.05),and the feed reward of meat ducks in the group on day 1~42 was significantly increased by 14.81%(P<0.05).Compared with the control group,muscle glutathione peroxidase activity in the 20 and 40 mg/kg oregano group was significantly increased by 23.08%and 23.93%,respectively(P<0.05).The content of muscle malondialdehyde in the antibacterial peptide group and the 20 mg/kg oregano group was significantly reduced by 47.49%and 52.36%,respectively,compared with the control group(P<0.05).The serum malondialdehyde content in the control group was the highest,and the malondialdehyde content in the 20 mg/kg Oregano group was the lowest,and the serum malondialdehyde content in the control group was significantly increased by 87.53%,156.96%and 78.07%,respectively,compared with that in the treatment group(P<0.05).Compared with the control group,the muscle cooking loss in the treatment group was significantly reduced by 35.86%,41.73%and 39.95%,respectively(P<0.05),and the muscle thiobarbituric acid value in the 20 and 40 mg/kg oregano group was significantly reduced by 11.76%and 14.71%(P<0.05).Conclusion:Under the conditions of this experiment,the effect of dietary oregano on meat ducks was consistent with that of antimicrobial peptides,in which 20 mg/kg of oregano could significantly improve the feed return of meat ducks at 1~42 days,improve the antioxidant performance of muscle and serum,and reduce the loss of muscle cooking.