饮用磁化水对羔羊生长性能、消化代谢和屠宰性能的影响

Effects of Drinking Magnetized Water on the Growth Performance,Digestion Metabolism and Slaughter Performance of lamb

试验旨在研究饮用磁化水对羔羊生长、消化代谢和屠宰性能的影响.选择12只20日龄、平均体重（5.57±0.36）kg的断奶小尾寒羊公羔,随机分为对照组和试验组,每组6只.在自由采食相同日粮条件下,试验组饮用磁化水,对照组饮用普通水.在95～110（试验前期）和215～230日龄（试验后期）分别进行消化代谢试验,并在240日龄进行屠宰性能测定.结果表明,在试验前期,磁化水组羔羊的干物质自由采食量,干物质、有机物、粗蛋白质、纤维素、半纤维素、钙、磷的表观消化率较对照组分别提高25.5％ （P＞0.05）、15.2％（P＞0.05）、14.4％（P＜0.05）、13.5％ （P＜0.05）、66.3％ （P＜0.05）、52.3％ （P＞0.05）、16.4％ （P＜0.05）和1.3％（P＞0.05）;在试验后期,分别提高15.3％ （P＞0.05）、9.0％ （P＜0.05）、8.8％（P＜0.05）、7.7％（P＜0.05）、20.6％ （P＜0.05）、33.5％ （P＜0.05）、9.8％（P＜0.05）和14.5％（P＜0.05）.在20～240日龄期间,磁化水组羔羊平均日增重较对照组提高40.8％ （P＜0.01）.磁化水组羔羊的屠宰活体重、胴体重、胴体净肉率、胴体瘦肉重比对照组分别提高40.8％ （P＜0.01）、52.3％ （P＜0.01）、8.8％（P＜0.01）和66.2％ （P＜0.01）.综上所述,饮用磁化水可在一定程度上提高羔羊日粮表观消化率和日增重,改善羔羊的屠宰性能.

The experiment was conducted to study the effect of magnetized water on the growth performance,digestion metabolism and slaughter performance of lamb.12 weaned male lambs with average body weight of 5.57 kg±0.36 kg were selected and randomly divided into 2 groups,6 lambs in each group.2 groups were provided with the same basal diet while lambs in experiment group were given with magnetized water （MW）,and that in control group were given with normal water.The digestion metabolism experiments were carried out at 95-110 days and 215-230 days,respectively,and the slaughter performance of lamb was determined at 240 day to study the effects of drinking MW on the growth performance,digestion metabolism and slaughter performance of lamb.The results showed that in the earlier phase,comparing with control group,dry matter voluntary intake and the apparent digestibility of dry matter,organic matter,crude protein,cellulose,hemi-cellulose,calcium and phosphorous of lambs in MW group at 95-110 days were increased by 25.5％ （P＞0.05）,15.2％ （P＞0.05）,14.4％ （P＜0.05）,13.5％ （P＜0.05）,66.3％ （P＜ 0.05）,52.3％ （P＞0.05）,16.4％ （P＜0.05）and 1.3％ （P＞0.05）,respectively.In the later phase,that of MW group were increased by 15.3％ （P＞0.05）,9.0％ （P＜0.05）,8.8％ （P＜0.05）,7.7％ （P＜0.05）,20.6％ （P＜0.05）,33.5％ （P＜0.05）,9.8％ （P＜0.05） and 14.5％ （P＜0.05）,respectively.During 20-220 days,the average daily body weight gain of lambs in WM group was increased by 40.8 ％ （P＜0.01）and the live body weight,carcass weight,carcass net meat percentage,carcass lean weight were increased by 40.8％ （P＜0.01）,52.3％ （P＜0.01）,8.8％ （P＜0.01） and 66.2％ （P＜0.01）,respectively.In conclusion,the digestibility of nutrient and daily body weight gain of lamb could be increased and the slaughter performance of lamb be improved to a certain degree by drinking MW.