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Literature DB >> 6722643

Experimental colonization of the bovine teat duct with Corynebacterium bovis and the effect on milk somatic cell counts.

Abstract

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).

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Year: 1984 PMID： 6722643 PMCID： PMC1236026

Source DB: PubMed Journal: Can J Comp Med ISSN： 0008-4050

13 in total

4. Inoculation of the bovine teat duct with Staph. Aureus: the relationship of teat duct length, milk yield and milking rate to development of intramammary infection.

Authors: L B Prasad; F H Newbould
Journal: Can Vet J Date: 1968-05 Impact factor: 1.008

1. The susceptibility of bovine udder quarters colonized with Corynebacterium bovis to experimental infection with Staphylococcus aureus or Streptococcus agalactiae.

Authors: B W Brooks; D A Barnum
Journal: Can J Comp Med Date: 1984-04

1 in total

Experimental colonization of the bovine teat duct with Corynebacterium bovis and the effect on milk somatic cell counts.

1. Relationship of somatic cells in quarter milk to type of bacteria and production.

2. Mastitis control program: effect on milk production.

3. Locus of mammary gland infections of Corynebacterium bovis.

4. Inoculation of the bovine teat duct with Staph. Aureus: the relationship of teat duct length, milk yield and milking rate to development of intramammary infection.

5. Initial response of the bovine mammary gland to invasion by Staphylococcus aureus.

6. The pathogenic significance of various intramammary infections.

7. Adherence as a prerequisite for infection of the bovine mammary gland by bacteria.

8. Cell counts and composition of bovine milk.

9. Some factors affecting selective adherence of microorganisms in the bovine mammary gland.

10. Characterization of strains of Corynebacterium bovis.

1. The susceptibility of bovine udder quarters colonized with Corynebacterium bovis to experimental infection with Staphylococcus aureus or Streptococcus agalactiae.