The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Bacterial Counts Associated with Recycled Newspaper Bedding
Open accessAbstract
Bacterial counts associated with recycled newspaper, wood shavings, and pelleted corn cobs used as bedding for lactating dairy cows were compared. Chopped newspaper and pelleted corn cobs had similar gram-negative bacterial, coliform, and streptococcal bedding counts. Staphylococcal counts in pelleted corn cobs were greater than in chopped newspaper. Conversely, gram-negative bacterial, coliform, and staphylococcal counts in chopped newspaper were greater than in wood shavings. Coliform and streptococcal counts did not differ between chopped newspaper and wood shavings bedding materials. Teat swab counts from cows bedded on pelleted corn cobs were greater than those from cows bedded on chopped newspaper for gram-negative bacterial, coliform, Klebsiella species, and staphylococci. Streptococcal teat swab counts did not differ between cows bedded on chopped newspaper and pelleted corn cobs. Cows bedded on chopped newspaper and wood shavings had similar gram-negative bacterial, coliform, and Klebsiella species teat swab counts. Streptococcal and staphylococcal teat swab counts were greater from cows bedded on chopped newspaper than those from cows bedded on wood shavings. Teat swab and bedding counts were correlated. In general, bacterial counts in bedding suggest no advantage in using chopped newspaper over pelleted corn cobs or wood shavings in reducing exposure of teats to environmental mastitis pathogens.
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Wood shavings, straw, chopped newspaper, recycled manure, and corn fodder are commonly used bedding materials that often sustain coliform populations greater than 10^6 colony forming units/gram of bedding.
“Wood shavings, straw, chopped newspaper, recycled manure, and corn fodder are commonly used bedding materials that often sustain coliform populations greater than 10 6 colony forming units/gram of bedding [24, 27].”
From Coliform mastitis (2003) · cites this paper as [27]
Table 1 (CONCLUSIONS section) reports mean coliform counts of about 10^5.5 CFU/g for used chopped newspaper and 10^5.2 CFU/g for used wood shavings—below the claimed 10^6 threshold. The study did not test recycled manure or corn fodder, and its discussion says straw was not included. The reported counts therefore contradict the threshold claim for the two named materials it measured. (LLM, conf=0.85)
Checked by a reasoning model — may be wrong.
Experimental — accuracy not yet measuredStudies in the United States and Europe consistently report that approximately 40% of clinical cases are the result of Gram-negative bacteria.
“The percentage distribution of Gram-negative bacteria causing clinical mastitis is herd dependant, but studies in the United States and Europe consistently report that appropriately 40% of clinical cases are the result of Gram-negative bacteria [25, 27, 55, 57].”
From Coliform mastitis (2003) · cites this paper as [27]
The Introduction discusses bedding as a source of mastitis pathogens, and Bedding Counts reports that 1.1% of quarters had a Gram-negative intramammary infection. Neither passage gives the proportion of clinical mastitis cases caused by Gram-negative bacteria. Searches for the claimed 40% figure and for clinical-case proportions found no supporting passage in our copy. (LLM, conf=0.76)
Experimental — accuracy not yet measuredThe rate of clinical cases caused by Gram-negative bacteria averages approximately 20 cases per 100 cows per year in these studies.
“Rate of clinical cases caused by Gram-negative bacteria average approximately 20 cases per 100 cows per year in these studies.”
From Coliform mastitis (2003) · cites this paper as [27]
The Bedding Counts section reports that 1.1% of quarters had Gram-negative intramammary infections; that is not a rate of clinical cases. Searches for annual clinical-case rates and 20 cases per 100 cows found no such figure in our copy. (LLM, conf=0.76)
Experimental — accuracy not yet measured
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Citations
Cites
Environmental Mastitis: Cause, Prevalence, Prevention
Smith, K. L., Todhunter, D. A., & Schoenberger, P. S. (1985) · Journal of Dairy Science · doi:10.3168/jds.s0022-0302(85)80993-0 · Cited by 475
Self-citationBacterial Counts in Bedding Materials Used on Nine Commercial Dairies
Hogan, J. S., Smith, K. L., Hoblet, K. H., Todhunter, D. A., Schoenberger, P. S., Hueston, W. D., Pritchard, D. E., Bowman, G. L., Heider, L. E., Brockett, B. L., et al. (1989) · Journal of Dairy Science · doi:10.3168/jds.s0022-0302(89)79103-7 · Cited by 253
Self-citation
Flagged first, then by citations
Research works printed but not linked: 9
- Bagley, 1978, Primary Klebsiella identification with MacConkey-Inositol-carbenicillin agar, Appl. Environ. Microbiol., 6, 536, 10.1128/aem.36.3.536-538.1978 · DOI
- Bramley, 1982, Sources of Streptococcus uberis in the daily herd. I. Isolation from bovine feces and from straw bedding of cattle, J. Dairy Res., 49, 369, 10.1017/S0022029900022500 · DOI
- Bramley, 1984, Streptococcus uberis udder infections – a major barrier to reducing mastitis incidence, Br. Vet. J., 140, 328, 10.1016/0007-1935(84)90122-2 · DOI
- Bramley, 1975, Studies on the control of coliform mastitis in dairy cows, Br. Vet. J., 131, 160, 10.1016/S0007-1935(17)35336-8 · DOI
- Fairchild, 1982, Coliform counts in various bedding materials, J. Dairy Sci., 65, 1029, 10.3168/jds.S0022-0302(82)82305-9 · DOI
- Rendos, 1975, Microbial populations of teat ends of dairy cows, and bedding materials, J. Dairy Sci., 58, 1492, 10.3168/jds.S0022-0302(75)84740-0 · DOI
- Rothman, 1963, Defense mechanisms of the skin, Ann. Rev. Med., 14, 215, 10.1146/annurev.me.14.020163.001243 · DOI
- White, 1989, Isolation and identification of coagulase-negative Staphylococcus species from bovine body sites and streak canals of nulliparous heifers, J. Dairy Sci., 72, 1886, 10.3168/jds.S0022-0302(89)79307-3 · DOI
- Zehner, 1986, Growth of environmental mastitis pathogens in various bedding materials, J. Dairy Sci., 69, 1932, 10.3168/jds.S0022-0302(86)80620-8 · DOI
Cited by
Sorted by citations
Hogan, J., & Larry Smith, K. (2003) · Veterinary Research · doi:10.1051/vetres:2003022 · Cited by 245
Self-citation
Metadata
- Authors
- Hogan, J. S., Smith, K. L., Todhunter, D. A., & Schoenberger, P. S.
- Affiliations
- The Ohio State University (US)
- Venue
- Journal of Dairy Science
- Publisher
- American Dairy Science Association
- Published
- 1990-07
- Volume
- 73
- Issue
- 7
- Pages
- 1756-1761
- ISSN
- 0022-0302 (ISSN-L)
- OpenAlex
- W2053826653
- Cited by
- 53
- References
- 2
- Citations by year
- 2024: 1 · 2022: 4 · 2020: 3 · 2019: 1 · 2018: 1 · 2017: 2 · 2016: 3 · 2015: 3 · 2014: 4 · 2013: 2 · 2012: 3
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Journal of Dairy Science (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Milk Quality and Mastitis in Dairy Cows
- Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Behavior and Welfare Studies
- Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal health and immunology
- Keywords
- dairy cow bedding, lactating dairy cows, Gram-negative bacteria, coliform bacteria, Streptococcus, Staphylococcus, Klebsiella, environmental mastitis, wood shavings
- MeSH terms
- Animals, Bacteria, Cattle, Zea mays, Environmental Microbiology, Female, Housing, Animal, Mammary Glands, Animal, Mastitis, Bovine, Paper, Wood, Colony Count, Microbial
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