Goossens B, Osaer S, Kora S, Chandler K J, Petrie L, Thevasagayam J A, Woolhouse T, Anderson J
International Trypanotolerance Centre, Banjul, The Gambia.
Vet Rec. 1998 Mar 14;142(11):277-81. doi: 10.1136/vr.142.11.277.
An abattoir survey of sheep and goats was carried out in The Gambia for one year. A total of 1248 goats and 438 sheep, predominantly young females, were slaughtered and sampled. Sixty per cent of the females of both species were pregnant. There were no significant differences between the dressing percentages of different breeds and age groups. Sex and stage of pregnancy had a significant influence on carcase yields in both species. In goats the highest carcase yields were obtained during the early dry season. Most of the animals were clinically healthy and there were few pathological findings postmortem. In both species, there was a seasonal fluctuation of packed cell volume (PCV), with a minimum during the rains, and although the prevalence of trypanosomiasis was low it reduced the PCV. Faecal egg counts of Trichostrongylidae were highest during the rainy season and goats had higher faecal egg and coccidial oocyst counts than sheep. In sheep, a breed difference was observed for PCV and an age difference for egg excretion. The peak or higher rates of egg excretion occurred during the rains in both species. The immune status against peste des petits ruminants was significantly lower in goats (39 per cent) than in sheep (49.5 per cent). Antibodies against bluetongue virus were found in 62.6 per cent of goats and 55.8 per cent of sheep.
在冈比亚对绵羊和山羊进行了为期一年的屠宰场调查。共屠宰并采样了1248只山羊和438只绵羊，主要是年轻母羊。两个物种60%的母羊怀孕。不同品种和年龄组的屠宰率没有显著差异。性别和怀孕阶段对两个物种的胴体产量都有显著影响。在山羊中，旱季早期获得的胴体产量最高。大多数动物临床健康，死后病理发现很少。两个物种的红细胞压积（PCV）都有季节性波动，雨季时最低，虽然锥虫病的患病率较低，但它降低了PCV。毛圆科线虫的粪便虫卵计数在雨季最高，山羊的粪便虫卵和球虫卵囊计数高于绵羊。在绵羊中，观察到PCV存在品种差异，排蛋存在年龄差异。两个物种在雨季时排蛋率达到峰值或更高。山羊对小反刍兽疫的免疫状态（39%）明显低于绵羊（49.5%）。在62.6%的山羊和55.8%的绵羊中发现了抗蓝舌病病毒抗体。
