Saloniemi H, Roine K
Nord Vet Med. 1981 Jun-Aug;33(6-8):289-96.
The incidence of parturient paresis, nonparturient paresis, ketosis and tetany were examined from 283 herds (2,590 cows per year) over a period of eight years. These metabolic diseases made up 29.4% of the cases treated by veterinarians during the farm visits. Significant variation in annual incidences was found only in ketosis. The monthly variation in parturient paresis and ketosis differed highly significantly from the seasonal variation in calving. They were most frequent in March-April. Most of the tetany cases were diagnosed in May-June. The incidence of parturient paresis (0.095 cases per cow per year) and the incidence of ketosis (0.058) varied significantly between herds of different size. The incidence of nonparturient paresis (0.008) and tetany (0.002) did not vary significantly between herds of different size. The incidence of ketosis was significantly higher on farms with milk recording than on other farms. The type of cowshed did not affect the incidence of metabolic disease.
在八年时间里，对283个牛群（每年2590头奶牛）的产褥期麻痹、非产褥期麻痹、酮病和搐搦症的发病率进行了调查。这些代谢性疾病占兽医在农场出诊时所治疗病例的29.4%。仅在酮病方面发现年发病率有显著差异。产褥期麻痹和酮病的月度变化与产犊的季节变化有极显著差异。它们在3月至4月最为常见。大多数搐搦症病例在5月至6月被诊断出来。不同规模牛群中产褥期麻痹的发病率（每头奶牛每年0.095例）和酮病的发病率（0.058）有显著差异。不同规模牛群中非产褥期麻痹的发病率（0.008）和搐搦症的发病率（0.002）没有显著差异。有牛奶记录的农场中酮病的发病率显著高于其他农场。牛舍类型不影响代谢性疾病的发病率。
