AI Article Synopsis

  • Mastitis is a common issue in dairy cows that leads to lower milk production and quality, but probiotics like Bacillus subtilis C-3102 may help prevent it instead of using antibiotics.
  • Research showed that feeding cows this probiotic reduced the occurrence of mastitis, decreased medication days, and minimized milk disposal time while keeping somatic cell counts lower than the control group.
  • Additionally, probiotic treatment appeared to lower stress hormone levels and improve immune cell responses, suggesting B. subtilis C-3102 is effective in preventing mastitis in cows.

Article Abstract

Mastitis is a very common inflammatory disease of the mammary gland of dairy cows, resulting in a reduction of milk production and quality. Probiotics may serve as an alternative to antibiotics to prevent mastitis, and the use of probiotics in this way may lessen the risk of antibiotic resistant bacteria developing. We investigated the effect of oral feeding of probiotic Bacillus subtilis (BS) C-3102 strain on the onset of mastitis in dairy cows with a previous history of mastitis. BS feeding significantly decreased the incidence of mastitis, the average number of medication days and the average number of days when milk was discarded, and maintained the mean SCC in milk at a level substantially lower than the control group. BS feeding was associated with lower levels of cortisol and TBARS and increased the proportion of CD4 T cells and CD11c CD172a dendritic cells in the blood by flow cytometry analysis. Parturition increased the migrating frequency of granulocytes toward a milk chemoattractant cyclophilin A in the control cows, however, this was reduced by BS feeding, possibly indicating a decreased sensitivity of peripheral granulocytes to cyclophilin A. These results reveal that B. subtilis C-3102 has potential as a probiotic and has preventative capacity against mastitis in dairy cows.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9541589PMC
http://dx.doi.org/10.1111/asj.13764DOI Listing

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