不同类型音乐对奶牛泌乳及抗氧化性能的影响

摘要

试验旨在探讨莫扎特音乐、轻音乐、原创音乐对奶牛泌乳及抗氧化性能的影响.选用产奶量、年龄、胎次、泌乳期相近的荷斯坦泌乳牛64头,随机分成4组,即莫扎特音乐组、轻音乐组、原创音乐组及对照组,每组16头.试验组早、中、晚3次各播放音乐2 h,对照组无音乐播放.正试期当天起(0 d),每隔20 d测定单产奶量并采集血样1次,测定血液中总抗氧化能力(T-AOC)、超氧化物歧化酶(SOD)及谷胱甘肽过氧化物酶(GSH-Px)活性及丙二醛(MDA)含量.预试期7 d,正试期60 d.结果表明,试验第20天,轻音乐组、莫扎特音乐组奶牛产奶量均显著高于对照组(P<0.05),轻音乐组、莫扎特音乐组、原创音乐组奶牛血清中SOD含量均显著高于对照组(P<0.05),轻音乐组、莫扎特音乐组奶牛血清中MDA含量均显著低于对照组(P<0.05),轻音乐组、莫扎特音乐组奶牛血清中GSH-Px活性均显著高于对照组(P<0.05);试验0～60 d,轻音乐组、莫扎特音乐组奶牛血清中T-AOC水平均显著高于对照组(P<0.05).综上所述,轻音乐、莫扎特音乐均有提高奶牛泌乳量的作用趋势,原创音乐对奶牛泌乳性能无显著影响;轻音乐、莫扎特音乐、原创音乐均有提高奶牛机体抗氧化能力的趋势.%The aim of this trial was to discuss the effects of Mozart music,light music and original music on the lactation and antioxidant capacity of lactating cows.64 Holstein lactating cows with similar milk yield,age,parity and lactation period were enrolled and randomly divided into four groups (Mozart music,light music,original music and the control groups)with 16 cows in each group.Music was played 3 times at morning,afternoon,and evening per day in the three trial groups,with each time for 2 h,and no music played in the control group.From the beginning of trial period (0 day),milk yield per unit was measured and blood samples were collected for tes-ting total antioxidant capacity (T-AOC),the activities of superoxide dismutase (SOD),glutathi-one peroxidase (GSH-Px)and content of malondialdehyde (MDA)every 20 d.The preliminary trial period was 7 d,and the trial period was 60 d.The results showed as followed:On the 20th day,comparing with the control group,the milk yield of cows in light music and Mozart music groups were both significantly higher (P <0.05);The serum activities of SOD in 3 trial groups were all significantly higher (P <0.05);The serum contents of MDA in light music and Mozart music groups were both significantly lower (P < 0.05 );And the activities of GSH-Px in light music and Mozart music groups were both significantly higher (P <0.05).During the trial period from 0 to 60 d,the serum amount of T-AOC in light music and Mozart music groups were both significantly higher than that in the control group (P <0.05).In conclusion,light music and Mo-zart music had the tendency of increasing the milk yield of cows.Original music had shown no ob-vious effects on the cows'milk performance.Light music,Mozart music and original music had the tendency of improving antioxidant capacity of dairy cows.