Kerr L A, Groce A W, Kersting K W
College of Veterinary Medicine, Mississippi State University, MS 39762.
J Am Vet Med Assoc. 1987 Sep 1;191(5):551-2.
Two calves developed a CNS syndrome characterized by hyperesthesia, tremors, and incoordination while nursing dams that had been feeding on ammoniated forage. To increase digestibility, intake, and nitrogen content, low-quality forages were ammoniated at a rate of 3% dry weight. However, a CNS syndrome of unknown cause has been observed in cows and calves nursing cows that have ingested ammoniated forage. Serum electrolytes, glucose, and blood differentials of the 2 calves in this report were normal. However, the older calf had high serum and CSF ammonia concentrations. Both calves, sedated with acepromazine and given thiamine injections, were clinically normal 12 hours later.
两头小牛出现了一种中枢神经系统综合征，其特征为感觉过敏、震颤和共济失调，而它们所哺乳的母牛一直在采食氨化饲料。为了提高消化率、采食量和氮含量，以干重3%的比例对低质量草料进行了氨化处理。然而，在采食了氨化饲料的母牛及其哺乳的小牛中，曾观察到一种病因不明的中枢神经系统综合征。本报告中这两头小牛的血清电解质、葡萄糖和血液分类计数均正常。然而，年龄较大的那头小牛血清和脑脊液中的氨浓度较高。两头小牛用乙酰丙嗪镇静并注射了硫胺素，12小时后临床症状恢复正常。
