用牛棒状杆菌对奶牛乳腺导管进行实验性定植及其对牛奶体细胞计数的影响。
Experimental colonization of the bovine teat duct with Corynebacterium bovis and the effect on milk somatic cell counts.
作者信息
Brooks B W, Barnum D A
出版信息
Can J Comp Med. 1984 Apr;48(2):141-5.
Colonization with Corynebacterium bovis was established in 59 of 64 (92%), 58 of 59 (98%) and 19 of 34 (56%) of uninfected bovine mammary quarters following inoculation of 83.3 X 10(4) colony-forming units (CFU) of the organism into the teat cistern, 4.7 X 10(3) CFU 5 mm into the teat duct or by exposure of the teat orifice to a milk culture containing 1.6 X 10(7) CFU/mL respectively. Mean somatic cell counts for foremilk samples from 122 quarters were significantly higher after colonization with C. bovis (145,900/mL) compared to before exposure (130,900/mL).
在将83.3×10⁴个该菌的菌落形成单位（CFU）接种到乳头池、将4.7×10³CFU接种到乳头管5毫米深处或分别使乳头开口暴露于含有1.6×10⁷CFU/mL的乳汁培养物后，未感染的牛乳腺腺叶中，牛棒状杆菌定殖率分别为64个中的59个（92%）、59个中的58个（98%）和34个中的19个（56%）。与暴露前（130,900/mL）相比，122个腺叶的前乳样品在牛棒状杆菌定殖后的平均体细胞计数显著更高（145,900/mL）。
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