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Causes of calf mortality in peri-urban area of Nairobi, Kenya

机译：肯尼亚内罗毕近郊地区小牛死亡率的成因

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The study reported data from 507 post-mortem records in the Department of Pathology, Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Nairobi, Kenya. The records were from carcasses obtained from the peri-urban area of Nairobi during a 20-year period between 1990 and 2009. Approximately 80% (393/507) of the calf carcasses had their diagnosis made through post-mortem examination, while the rest (114/507) were inconclusive. Just less than half (48.3%) of the calf carcasses presented had their age specified by the owners compared to 51.7% whose age was not specified. For calf carcasses whose age was specified by the owners, those indicated as more than 3 months were one-and-a-half times as many as those below 3 months old. The proportion of female carcasses (53.8%, 273/507) presented for post-mortem were slightly higher than the male carcasses (46.2%, 234/507). Diseases or conditions of the respiratory system were the most common 17.7% (97/507) while gastrointestinal tract (GIT) was second and affected 16.1% (88/507) of the cases. Another small number, 3.3% (18/507), died from bloat giving the total cases associated with GIT as 19.4% (106/507). Severe calf malnutrition and septicaemia were the third most reported causes of calf mortality in similar proportions at 14.3% (78/507) and 14.4% (79/507), respectively. Other minor causes of calf mortality were tick-borne diseases 8.6% (47/507), helminthiasis and poisoning, 2.9% (16/507) and 1.8% (10/507), respectively.
机译：该研究报告了肯尼亚内罗毕大学兽医学院病理学，微生物学和寄生虫学系的507个死后记录的数据。记录来自1990年至2009年的20年期间从内罗毕近郊地区获得的尸体。大约80％（393/507）的小牛尸体是通过验尸后诊断的，其余（114/507）尚无定论。所展示的犊牛屠体中，只有不到一半（48.3％）由所有者指定年龄，而未指定年龄的为51.7％。对于所有者指定年龄的犊牛尸体，表示超过3个月的犊牛尸体是小于3个月大的犊牛的一半半。尸体验尸的女性尸体比例（53.8％，273/507）略高于男性尸体（46.2％，234/507）。呼吸系统疾病或状况是最常见的，占17.7％（97/507），而胃肠道（GIT）位居第二，受影响的病例是16.1％（88/507）。另有3.3％（18/507）的人死于膨胀，与GIT相关的总病例为19.4％（106/507）。严重的小腿营养不良和败血症是报告的小腿死亡率第三高的原因，比例相似，分别为14.3％（78/507）和14.4％（79/507）。小腿死亡率的其他次要原因是tick传播疾病，分别为8.6％（47/507），蠕虫病和中毒，分别为2.9％（16/507）和1.8％（10/507）。

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