患腐蹄病奶牛的锌营养状况分析  

Zinc Nutritional Level in Foot-rotten Dairy Cows

作　　者：周华林[1] 吴立夫[2] 熊江林[1] 

机构地区：[1]湖北襄樊职业技术学院,襄樊441003 [2]贵州大学,贵阳550025

出　　处：《中国畜牧兽医》2010年第4期180-182,共3页China Animal Husbandry & Veterinary Medicine

摘　　要：选择临床健康、无蹄病奶牛8头和患腐蹄病奶牛16头,于清晨饲喂前采集样品(血液、乳、尿、粪、毛和蹄甲),将样品干法灰化前处理后用原子吸收分光光度计测定锌含量,同时采集有代表性饲料测定其锌含量。结果表明,与对照组相比,患腐蹄病奶牛血清和蹄甲锌含量极显著降低(P<0.01),而乳、尿、粪和毛锌含量无显著差异(P>0.05)。饲料分析的结果表明,患腐蹄病奶牛缺锌似与饲料无关。病牛处于缺锌状态,特别是患蹄蹄甲锌含量极显著降低,表明腐蹄病的发生和缺锌之间存在密切关系。8 clinical health dairy cows（control group）and 16 foot-rotten dairy cows were selected and were collected serum,milk,urine,feces,wool and hoof horn before feeding in the morning,the feedstuff were collected,too.The all collection were dried and then measured the zinc level by atomic absorption spectrophotometer.The result showed that the zinc levels in serum and hoof horn of the foot-rotten group significantly decreased（P〈0.01）,in comparison with the results in control group,but no significant difference was observed in milk,urine,excrement and wool（P〉0.05）.The analysis of zinc levels in diet indicated that the zinc deficiency in foot-rotten cows seemed no relevance with the diet.The zinc deficiency,especially zinc deficiency in hoof horn,implied the closely relationship between the occurrence of foot rot and zinc deficiency.

关 键 词：奶牛 腐蹄病 锌营养状况 

分 类 号：S857.16[农业科学—临床兽医学]