Effects of intramammary infusion of Bifidobacterium breve on mastitis pathogens and somatic cell response in quarters from dairy cows with chronic subclinical mastitis
| Autor: | Satoshi Gondaira, Yo Natsume, Keiichi Hisaeda, Hajime Nagahata, Miyuki Okuda, Takuma Mukai, Hidetoshi Higuchi, Tatsuya Ando |
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| Rok vydání: | 2020 |
| Předmět: |
Staphylococcus aureus
Somatic cell ved/biology.organism_classification_rank.species Bifidobacterium breve Corynebacterium medicine.disease_cause Microbiology 03 medical and health sciences Mammary Glands Animal Animals Medicine Subclinical mastitis Mastitis Bovine 030304 developmental biology Infusions Intralesional 0303 health sciences Corynebacterium Infections biology ved/biology business.industry 0402 animal and dairy science 04 agricultural and veterinary sciences General Medicine Corynebacterium bovis Bacteriological Cure Staphylococcal Infections biology.organism_classification medicine.disease 040201 dairy & animal science Mastitis Treatment Outcome Cattle Female General Agricultural and Biological Sciences business |
| Zdroj: | Animal Science Journal. 91 |
| ISSN: | 1740-0929 1344-3941 |
| DOI: | 10.1111/asj.13406 |
| Popis: | The present study assessed the effects of intramammary infusion of Bifidobacterium breve (B. breve) on mastitis-causing pathogens and on the somatic cell counts (SCC) in lactating cows with chronic subclinical mastitis. The bacteriological cure rates of 42 quarters from 42 cows infected with Staphylococcus aureus, Corynebacterium bovis, coagulase-negative staphylococci, and environmental streptococci were 18.2% (2/11), 14.3% (1/7), 58.8% (10/17), and 28.6% (2/7), respectively, on day 14 after B. breve infusion. In a second trial, B. breve was infused into 18 quarters from 18 cows with chronic subclinical mastitis from which pathogens had not been isolated; the rates of quarters showing SCC > 50 × 104 cells/ml prior to B. breve infusion that decreased to < 30 × 104 cells/ml after infusion were significantly (p < .01) increased to 61.1% (11/18) on day 14 compared to that prior to infusion (0/18). The intramammary infusion of B. breve appears to be a non-antibiotic approach for elimination of minor pathogens and decreasing SCC in quarters with chronic subclinical mastitis in dairy cows. |
| Databáze: | OpenAIRE |
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