Peer-reviewed veterinary case report
The use of polyethylene intramammary device in protection of the lactating bovine udder against experimental infection with Staphylococcus aureus or Streptococcus agalactiae.
- Journal:
- Canadian journal of comparative medicine : Revue canadienne de medecine comparee
- Year:
- 1982
- Authors:
- Brooks, B W & Barnum, D A
Plain-English summary
Researchers looked at how well a special device made of polyethylene, placed inside the udders of lactating cows, could protect them from infections caused by two types of bacteria: Staphylococcus aureus and Streptococcus agalactiae. They found that the cows with the device had a significantly lower chance of getting infected compared to those without it. However, while the overall cell counts in the milk were similar between the two groups, the specific types of cells that indicate infection were higher in the milk from the cows with the device. Overall, the use of the polyethylene device seemed to help reduce the risk of infection in the cows' udders.
Abstract
The susceptibility of lactating bovine udder quarters fitted with a polyethylene intramammary device to infection was investigated. Following experimental challenge with Streptococcus agalactiae or Staphylococcus aureus, the incidence of infection was significantly (p less than 0.05) lower in intramammary device-fitted quarters compared to control quarters. In general, total foremilk and strippings milk somatic cell counts for intramammary device-fitted and control quarters were not significantly (p less than 0.05) different. Differential foremilk and strippings milk somatic cell counts were significantly (p less than 0.05) higher in samples from intramammary device-fitted quarters compared to control quarters.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/7127192/