Influence of bovine sub-clinical mastitis and associated risk factors on calving interval in a population of crossbred lactating cows in Sri Lanka
| Autor: | R. M. C. Deshapriya, R. Rahularaj, R.M.S.B.K. Ranasinghe |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Veterinary medicine
education.field_of_study 040301 veterinary sciences fungi Population 0402 animal and dairy science 04 agricultural and veterinary sciences Odds ratio Biology medicine.disease biology.organism_classification 040201 dairy & animal science Crossbreed Mastitis 0403 veterinary science Food Animals Sub clinical Calving interval medicine Animal Science and Zoology Sri lanka education Pasteurella multocida |
| Zdroj: | Tropical Animal Health and Production. 51:2413-2419 |
| ISSN: | 1573-7438 0049-4747 |
| DOI: | 10.1007/s11250-019-01957-4 |
| Popis: | A study was carried out to identify prevalence and risk factors for bovine subclinical mastitis (SCM) in crossbred lactating cows within the Kurunagala district of Sri Lanka. In this study, 283 crossbred cows (Jersey x Shahiwal) from randomly selected medium- and relatively large-scale dairy farms were screened for SCM. The Californian mastitis test (CMT) plus microbiological analyses were employed for screening. A pre-tested questionnaire was used to collect information on the cows and their management. When screening was based only on CMT, the prevalence of SCM was 49%, and it was 44% if based on both CMT and pathogen isolation. The isolated pathogens were Staphylococcus spp. (80%, 98/123), Escherichia coli (14%, 17/123), Streptococcus spp. (3%, 4/123) and Pasteurella multocida (3%, 4/123). The age, parity and milk yield showed positive correlations with SCM (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink