饮用磁处理水对小尾寒羊母羊消化代谢的影响

Effects of the Magnetic-treated Water on Digestion and Metabolism of Small Tail Han Ewes

给5只平均体重（45.1±9.2）kg的2-3岁龄空怀小尾寒羊母羊喂含粗料66％的日粮，采用自身对照设计，在试验期喂给磁处理水，以研究磁处理水对绵羊消化代谢的影响。结果表明，对照期绵羊的干物质采食量、有机物、粗蛋白、纤维素、半纤维索、钙、磷的消化率分别为（1370.2±132.2）g／a，（64.32±4.87）％，（71.80±3.96）％，（66.20±6.08）％，（55.96±6.73）％，（13.00±2.77）％，（20.42±5.57）％，饮用磁处理水后分别增加了17.3g／d，4.4％，5.0％,4.8％，3.8％，0.6％和2.8％。对照期绵羊有机物、粗蛋白、纤维素、半纤维素、钙、磷的消化量分别为（799.61±74.25），（119.98±10.44），（411.10±34.22），（130.28±10.91），（1.10±0.14），（0.80±0.16）g／d，饮用磁处理水后分别增加了22．6％，31．1％，-3.1％，16．1％，23．6％和25．0％。对照期绵羊体增重、氮、钙和磷保留垲分别为（185．0±264．3），（10．14±1．62），（0．82±0．11）和（0．77±0．14）g／d，饮用磁处理水后分别增加54．0％，27．3％，20．7％和24．7％。本研究表明饮用磁处理水可提高绵羊采食量，增加氮、钙和磷保留和体增重，但对消化率无显著影响。

Abstract： Five 2-3-year-old non-pregnant Small Tail Han Ewes,（45.1±9.2） kg of average body weight, fed with diet composed of 66% of maize straw and 34% of concentrate,were treated with self-contrast experiment design. Animals in treatment 1 （control） were given water and in treatment 2 the magnetic-treated water （MTW） was supplied to study the effect of MTW on digestion and metabolism of sheep. There- suits showed that the DM intake and the apparent digestibility of OM,CP,cellulose,semi-eellulose,Ca and P by animals in treatment 1 were （1 370.2±132.2） g/d, （64.32±4.87）%,（71.80±3.96）%,（66.20±6.08） %, （55.96±6.73） %,（13.00±2.77） %,（20.42±5.57）% respectively. When MTW was given, they were increased by 17.3%,4.4%,5.0%,-4.8%,3.8%,0.60% and 2.8% respectively. When sheep were given water, the amount of the digestible OM,CP, cellulose, semi-cellulose, Ca and P of the diet was （799.61±74.25）,（119. 98±10. 44）, （411.10±34.22）,（130.28±10. 91）,（1.10±0.14）,（0.80±0.16） g/d respectively,and when MTW was fed,they were increased by 22.6% ,31.1%,-3.1% ,16.1%, 23.6＆ and 25.0% respectively. When sheep were given water,the average body weight gain and the retention of N,Ca and P was （185.0±264.3）,（10.14±1.62）,（0.82±0.11） and （0.77±0.14） g/d respec-tively, however, when MTW was fed, they were increased by 54.0% ,27.3%,20.7% and 24.7% respec-tively. The present study showed that MTW could increase the intake and the retention of N, Ca, Pand body weight gain, but had no significant effect on the digestibility of nutrients.