天祝种羊场产羔母羊舍卫生评定

本试验在甘肃天祝种羊场两幢产羔母羊舍(新舍与旧舍),进行了为期四个月(11—2月)的观测。并分别对舍内温度、湿度、风速、墙壁温度、畜床土壤温度的变化及舍内空气中二氧化碳和氨的含量,进行了比较分析。由于新建羊舍,注意了建筑材料、羊舍结构、形式和施工质量,所以在一般寒冷气候条件下,保温性能较好,表现出新舍的优越性。使当年羔羊成活率达到92%,繁殖成活率达到68.9%的好成绩。

The Sanitation Assessment of Dropping Ewe Barns in Tianzhu Sheep Stud

A sanitation study of two dropping ewe barns,a new one and a old one,was conducted for four months in winter (from November-February) in Tianzhu sheep stud. The air temperature,humidity,wind speed,bed soil temperature,wall face temperature and the content or CO_2 and NH_3 in air in the two barns were compared and analysed respectively.The results obtained showed that in general condition of bitterly cold the sanitation and warm- keeping situations of the new barn were much better than those of the old one because of its good quality of cons- truction materials,reasonabe design of framework and building pattern,In the year that this study was performed,the lamb survival rate and the survival rate of breeding from the new barn came to 92% and 68.9%,respectioely.