麦洼牦牛冷季补饲试验研究

目的]为了提高麦洼牦牛冷季成活率.方法]在红原县的三个示范户中开展麦洼牦牛冷季补饲试验.补饲时间为2008年1～4月份,比较全群全期补饲青干草+精料模式与当地的传统的"少量补饲"模式的效果.试验牦牛分为1.5岁育成牛、6～8岁经产的空怀带犊母牛和6～8岁的经产怀孕母牛.分析的指标包括体重,体尺及死亡率.结果]表明,尽管除了部分体尺指标外,大部分体重体尺指标均表现了"掉膘",但试验组育成牛与空怀母牛相对于对照组在体重上减少较少(P ＜0.05),试验组牛只的越冬死亡率及怀孕牛的初生流产、死亡率均比对照组明显降低.结论]说明冷季补饲是十分必要的.

Research on a Supplement Feeding System for Grazing Yak in Cold Season

The effects of Cool-season supplementary feeding with hay and concentrate and the traditional little-supplementary feeding on 1.5 year old,6 to 8 year old pregnant and non-pregnant Maiwa yaks were compared in three family-hold farms in Hongyuan County from January to April of 2008.Weight,body size and mortality were recorded.The results showed that despite some indicators of body size,body size weight most of the indicators showed a fat loss,but the loss in the tested group Heifer and non-pregnant cows was ...