Giacoboni G I, Itoh K, Hirayama K, Takahashi E, Mitsuoka T
Department of Veterinary Public Health, Faculty of Agriculture, University of Tokyo, Japan.
J Vet Med Sci. 1993 Aug;55(4):555-9. doi: 10.1292/jvms.55.555.
To define the species of Campylobacter harboring in the intestine of calves and adult cattle and to examine their distribution among different age groups and farms, 34 calves and 60 adult cattle raised in 6 farms in 3 different areas were studied. Campylobacters were detected in the feces obtained from healthy calves (97.1%) less than 1-year-old but were much less frequently found in adult cattle (46.7%). Young calves harbored more species of Campylobacter than adult cattle. The isolation rate of campylobacters in adult cattle differed depending upon the farms examined. C. jejuni, C. hyointestinalis and C. fetus subsp. fetus were isolated from 61.8, 26.5, and 26.5% of calves, respectively. However, these 3 species were detected at the lower rates of 11.7 to 15.0% in adult cattle. C. coli, C. lari, C. fetus subsp. venerialis, C. fecalis, and other Campylobacter spp. were also detected in a few calves and adults. These results indicate that campylobacter colonization in the intestine is very common in young calves but not in adult cattle.
为确定寄居于犊牛和成年牛肠道中的弯曲杆菌种类，并研究其在不同年龄组和农场间的分布情况，我们对来自3个不同地区6个农场的34头犊牛和60头成年牛进行了研究。在小于1岁的健康犊牛粪便中检测到弯曲杆菌（检出率为97.1%），但在成年牛中检出率则低得多（46.7%）。犊牛携带的弯曲杆菌种类比成年牛更多。成年牛中弯曲杆菌的分离率因所检测的农场不同而有所差异。空肠弯曲杆菌、猪肠弯曲杆菌和胎儿弯曲杆菌胎儿亚种分别从61.8%、26.5%和26.5%的犊牛中分离得到。然而，在成年牛中这3种弯曲杆菌的检出率较低，为11.7%至15.0%。在少数犊牛和成年牛中还检测到了大肠弯曲杆菌、海鸥弯曲杆菌、胎儿弯曲杆菌性病亚种、粪便弯曲杆菌及其他弯曲杆菌属菌种。这些结果表明，弯曲杆菌在犊牛肠道中的定植非常普遍，但在成年牛中则不然。
