Martín-Gómez S, González-Paniello R, Pereira-Bueno J, Ortega-Mora L M
Dpto. Patología Animal (Sanidad Animal), Facultad de Veterinaria, Universidad de León, Spain.
Vet Parasitol. 1998 Feb 28;75(2-3):265-8. doi: 10.1016/s0304-4017(97)00189-1.
The purpose of this study was to investigate the prevalence of Tritrichomonas foetus infection in beef bulls in north-western Spain. The study area comprised of 350 herds (5909 cows and 102 bulls) managed under extensive or semi-extensive systems where natural mating alone or alternated with artificial insemination are used. The targets of this survey were bulls of 1 year of age or older. Preputial smegma samples were taken from 70 bulls (68.6% of bull population) servicing a total of 184 herds (52.6%) and 4136 cows (69.9%). Data collected at sampling included farm location, herd size, age, breed, private or communal bull and previous infertility problems in the herd. The percentage of infected bulls was 2.9% (2 of 70). Age of infected bulls was 5 and 7 years and both were of the local breed, Asturiana de los Valles. These results confirm the presence of T. foetus infection in Spain and the necessity to include this disease in the differential diagnosis of reproductive failure in rangeland grazing cattle.
本研究的目的是调查西班牙西北部肉用公牛胎儿三毛滴虫感染的流行情况。研究区域包括350个牛群（5909头母牛和102头公牛），这些牛群采用粗放或半粗放养殖系统，仅采用自然交配或自然交配与人工授精交替使用的方式。本次调查的对象是1岁及以上的公牛。从70头公牛（占公牛总数的68.6%）采集包皮垢样本，这些公牛服务于总共184个牛群（占52.6%）和4136头母牛（占69.9%）。采样时收集的数据包括农场位置、牛群规模、年龄、品种、公牛是私有还是公有以及牛群先前的不育问题。感染公牛的比例为2.9%（70头中有2头）。感染公牛的年龄分别为5岁和7岁，均为当地品种阿斯图里亚纳山谷牛。这些结果证实了西班牙存在胎儿三毛滴虫感染，以及有必要将这种疾病纳入牧区放牧牛繁殖失败的鉴别诊断中。
