van Knapen F, Franchimont J H, van der Lugt G
Vet Q. 1982;4(3):101-5. doi: 10.1080/01652176.1982.9693848.
A serological survey on toxoplasmosis was carried out amongst horses, sheep, cattle, pigs and poultry in the Netherlands. Sera were obtained from slaughter animals and the results were compared with those of previous studies of this kind in the Netherlands. In horses and cattle the percentage of seropositive animals remained the same in the past 20 years. In sheep and particularly in pigs, however, a remarkable decline of seropositive animals was found. This is probably due to the age of the animals examined and a change in present day methods of farming. In poultry it was shown that only free scratching hens were seropositive in up to 30 per cent of the animals tested, whereas broilers and battery animals were seronegative. Since as yet no individual control measures in the slaughterhouse exist with regard to toxoplasmosis it is recommended to carry out periodic epizootiological surveys amongst farm animals to be able to follow trends of the infection.
在荷兰，针对马、羊、牛、猪和家禽开展了一项弓形虫病血清学调查。血清取自屠宰动物，并将结果与荷兰此前此类研究的结果进行了比较。在过去20年里，马和牛的血清阳性动物百分比保持不变。然而，在羊尤其是猪身上，血清阳性动物数量显著下降。这可能是由于所检测动物的年龄以及当今养殖方式的变化。在家禽方面，研究表明，只有自由觅食的母鸡在高达30%的检测动物中呈血清阳性，而肉鸡和笼养动物则呈血清阴性。由于目前在屠宰场尚无针对弓形虫病的个体控制措施，建议对农场动物定期开展动物流行病学调查，以便能够跟踪感染趋势。
