Ito A, Imai S, Ogimoto K
Veterinary Clinic Center, Yoron-cho Public Office, Kagoshima, Japan.
J Vet Med Sci. 1994 Aug;56(4):707-14. doi: 10.1292/jvms.56.707.
The composition of ciliate protozoa in the rumen of 30 Japanese beef black cattle (Bos taurus taurus) fed in Yoron Island, Kagoshima, was compared with that of 125 Holstein-Friesian cattle (Bos taurus taurus) fed in Hokkaido. Thirteen genera including 44 species with 32 formae detected from Japanese beef black cattle and 15 genera including 48 species with 25 formae from Holstein-Friesian cattle were identified. Thirty-six species with 19 formae were common to both hosts. A new species was recognized from Japanese beef black cattle and named Entodinium yunnense n. sp. This new species was classified into such four formae as yunnense n.f., spinonucleatum n.f., acutonucleatum n.f. and spinolobum n.f. A new forma of Entodinium bifidum having only one caudal spine was also recognized from Japanese beef black cattle and named monospinosum n.f. The average ciliate density in Japanese beef black cattle, 18.7 x 10(4)/ml, was lower than 40.3 x 10(4)/ml in Holstein-Friesian cattle. The average number of ciliate species per head in Japanese beef black cattle, 14.4 was also lower than 17.8 in Holstein-Friesian cattle. The average value of diversity index was 1.789 in Japanese beef black cattle and 1.718 in Holstein-Friesian cattle. Both incidence and composition ratio of Entodinium rectangulatum and E. ovinum were significantly higher in Japanese beef black cattle than in Holstein-Friesian cattle. On the other hand, Charonina ventriculi, E. caudatum, E. rostratum, E. parvum, E. bursa, Metadinium affine and Ostracodinium mammosum showed a reverse relation.
对在鹿儿岛县与论岛饲养的30头日本黑毛和牛（Bos taurus taurus）瘤胃中的纤毛虫原生动物组成，与在北海道饲养的125头荷斯坦-弗里生牛（Bos taurus taurus）瘤胃中的纤毛虫原生动物组成进行了比较。从日本黑毛和牛中鉴定出13个属，包括44个种和32个型，从荷斯坦-弗里生牛中鉴定出15个属，包括48个种和25个型。两个宿主共有36个种和19个型。从日本黑毛和牛中识别出一个新种，并命名为云南内毛虫（Entodinium yunnense n. sp.）。这个新种被分为云南型（yunnense n.f.）、棘核型（spinonucleatum n.f.）、尖核型（acutonucleatum n.f.）和棘叶型（spinolobum n.f.）这四个型。还从日本黑毛和牛中识别出一种只有一根尾棘的双歧内毛虫（Entodinium bifidum）新类型，并命名为单棘型（monospinosum n.f.）。日本黑毛和牛的纤毛虫平均密度为18.7×10⁴/ml，低于荷斯坦-弗里生牛的40.3×10⁴/ml。日本黑毛和牛每头牛的纤毛虫平均种类数为14.4，也低于荷斯坦-弗里生牛的17.8。日本黑毛和牛的多样性指数平均值为1.789，荷斯坦-弗里生牛为1.718。日本黑毛和牛中长方内毛虫（Entodinium rectangulatum）和绵羊内毛虫（E. ovinum）的发生率和组成比例均显著高于荷斯坦-弗里生牛。另一方面，腹毛虫（Charonina ventriculi）、尾状内毛虫（E. caudatum）、喙状内毛虫（E. rostratum）、微小内毛虫（E. parvum）、袋状内毛虫（E. bursa）、近缘变毛虫（Metadinium affine）和乳房似甲毛虫（Ostracodinium mammosum）则呈现相反的关系。
