Lakritz J, George L W, Moore J
Department of Veterinary Anatomy and Cell Biology, School of Veterinary Medicine, University of California, Davis 95616.
J Am Vet Med Assoc. 1993 Apr 15;202(8):1276-8.
Clinical signs that included lethargy, inappetence, diarrhea, and vomiting and that progressed to seizures were observed in 40 feeder pigs that were approximately 70 days old. The pigs were fed ground red wheat and whole milk and were housed in a barn that did not allow exposure to direct sunlight. Analysis of samples of feed obtained from the farm indicated inadequate quantities of calcium and phosphorus as well as a low ratio of these 2 nutrients. Serum and tissue concentrations of vitamin A were less than normal. Low serum calcium concentrations, high serum phosphorus concentrations, and high alkaline phosphatase and creatine kinase activities were compatible with low vitamin D concentrations.
在40头约70日龄的育肥猪中观察到临床症状，包括嗜睡、食欲不振、腹泻和呕吐，且病情发展为癫痫发作。这些猪喂食的是磨碎的红小麦和全脂牛奶，饲养在不允许阳光直射的畜舍中。对从该农场获取的饲料样本分析表明，钙和磷含量不足，且这两种营养素的比例较低。血清和组织中的维生素A浓度低于正常水平。血清钙浓度低、血清磷浓度高以及碱性磷酸酶和肌酸激酶活性高与维生素D浓度低相符。
