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Cited by 12Milk Quality and Mastitis in Dairy CowsMicrobial infections and disease researchEscherichia coli research studies

The DOI matches its Crossref record; 20 of the 20 references it cites were found in a registry or an index.

Intramammary Challenge of the Bovine Mammary Gland with Coliform Bacteria During Early Involution

Open access
Todhunter, Deborah, Smith, K. Larry, Hogan, Joseph S.·1990·Journal of Dairy Science
DOI 10.3168/jds.s0022-0302(90)78785-1
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Abstract

Isolates of Escherichia coli (n = 12), Klebsiella pneumoniae (n = 20), and Klebsiella oxytoca (n = 10) were used to challenge involuting mammary glands at 7 d of the dry period. Bacteria were selected for challenge on the basis of their ability to grow in a pooled source of dry cow secretion obtained at 21 d of involution. Challenge bacteria were classified as highly adapted (in vitro growth greater than 7 cfu log10/ml) or poorly adapted (growth less than 2 cfu log10/ml) for growth in dry cow secretion. Intramammary infusion of Escherichia coli, K. pneumoniae, and K. oxytoca resulted in 0, 40, and 30%, respectively, of quarters infected. Isolates highly adapted for growth in dry cow secretion caused 75% of K. pneumoniae and 67% of K. oxytoca experimental intramammary infections. Results indicated that the ability to overcome inhibitory properties of dry cow secretion was related to the establishment of K. pneumoniae and K. oxytoca intramammary infections in the dry gland. There was no evidence that growth of E. coli in dry cow secretion related to pathogenicity in the dry gland. Experimental challenge using multiple isolates did confirm the resistance of the involuting mammary gland to E. coli infection.

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Registry

Crossref · 10.3168/jds.s0022-0302(90)78785-1

Cites

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  • Gram-negative bacteria isolated from naturally occurring IMI differ in pathogenicity and virulence to the mammary gland.

    “Gram-negative bacteria isolated from naturally occumng IMI differ in pathogenicity and virulence to the mammary gland (3,10).”

    From Effects of an Escherichia coli J5 Vaccine on Mild Clinical Coliform Mastitis (1995) · cites this paper as [10]

    The Challenge Bacteria section says the strains were isolated from naturally occurring IMI. The Discussion reports that these strains differed in their ability to establish experimental infections, but the tests were confined to mammary glands during early involution. The claim does not retain that condition and describes the difference broadly as pathogenicity and virulence to the mammary gland; page numbers were not available in our copy. (LLM, conf=0.84)

    Experimental — accuracy not yet measured

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Citations

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Research works printed but not linked: 1

  1. Todhunter, 1982, In vitro growth of coliform bacteria in mammary secretion, J. Dairy Sci., 65, 170

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Metadata

Authors
Todhunter, D., Smith, K. L., & Hogan, J. S.
Affiliations
The Ohio State University (US)
ORCID
Smith, K. Larry
Venue
Journal of Dairy Science
Publisher
American Dairy Science Association
Published
1990-05
Volume
73
Issue
5
Pages
1217-1224
ISSN
0022-0302 (ISSN-L)
DOI
10.3168/jds.s0022-0302(90)78785-1
OpenAlex
W2016092764
Cited by
12
References
20
Citations by year
2017: 1 · 2015: 1 · 2014: 1
FWCI
2.47
Type
journal article
Language
en
Open access
Licence
Locations
  • Journal of Dairy Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of Agriculture
  • Ohio State University
Topics
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Milk Quality and Mastitis in Dairy Cows
  • Life Sciences › Immunology and Microbiology › Microbiology › Microbial infections and disease research
  • Life Sciences › Immunology and Microbiology › Microbiology › Escherichia coli research studies
Keywords
bovine mastitis, intramammary infection, mammary gland involution, dry period, coliform bacteria, Escherichia coli, Klebsiella pneumoniae, Klebsiella oxytoca, bacterial adaptation, pathogenicity, dairy cattle
MeSH terms
Animals, Cattle, Escherichia coli, Female, Klebsiella, Klebsiella pneumoniae, Lactation, Mammary Glands, Animal, Species Specificity, Specimen Handling, Time Factors

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