Peer-reviewed veterinary case report
A health program for commercial dairy herds. 5. The occurrence of specific disease entities.
- Journal:
- Australian veterinary journal
- Year:
- 1978
- Authors:
- Williamson, N B et al.
Plain-English summary
In a study of 9 dairy farms, researchers looked at health issues affecting cows over a total of 11,534 cow years. They found that the most common problems were mastitis (an infection of the udder) and infertility. On average, there were about 43 disease incidents for every 100 cows each year, and around 18.6% of the cows left the herds annually, mostly due to being sold or, in a smaller number of cases, due to death. The study showed that disease was responsible for about 9.8% of the cows being removed from the herds. Overall, these findings align with other research done in Australia and abroad, but this study had a longer observation period and more detailed monitoring.
Abstract
Disease incidence data was collected from 9 dairy herds which participated in a herd health program. A total of 11,534 cow years was analysed. In common with other Australian data, the important clinical diseases were mastitis and infertility. There was an average level of 43.4 disease incidents per year per 100 animals at risk. An average of 18.6% of the herd left each year. This comprised 1.5% through death and 17.1% through sale. Disease accounted for the disposal of 9.8% of animals, and management reasons for 8.8%. These findings are similar to those of other studies in Australia and in other countries, but the results in this study were based on a longer period and on closer surveillance.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/687288/