TY - JOUR ID - 5984 TI - Alteration of fatty acid profile of milk in Holstein cows fed Bacillus coagulans as probiotic: a field study JO - Iranian Journal of Veterinary Research JA - IJVR LA - en SN - 1728-1997 AU - Izadi, B. AU - Mohebbi-Fani, M. AU - Hosseinzadeh, S. AU - Shekarforoush, S. S. AU - Nazifi, S. AU - Rasooli, A. AD - Graduated from School of Veterinary Medicine, Shiraz University, Shiraz, Iran AD - Department of Animal Health Management, School of Veterinary Medicine, Shiraz University, Shiraz, Iran AD - Department of Food Hygiene and Public Health, School of Veterinary Medicine, Shiraz University, Shiraz, Iran AD - Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran Y1 - 2021 PY - 2021 VL - 22 IS - 2 SP - 100 EP - 106 KW - Amyloid A KW - Bacillus coagulans KW - Haptoglobin KW - Heptadecanoic acid KW - Linoleic acid DO - 10.22099/ijvr.2021.38159.5558 N2 - Background: Probiotics may improve milk quality and the general health status of animals. Aims: The effects of dietary Bacillus coagulans PRM101 on milk components, milk fatty acids (FA), and some health indicators of dairy cows were investigated. Methods: The probiotic was added to the feed of 12 Holstein cows (2 g/cow: 2 × 1011 CFU/cow) for 63 days compared to a control group fed on the basal ration (n=11). Milk and blood samples were taken on days 0, 21, 42, and 63. Results: The yields of milk and energy corrected milk (ECM; computed from milk weight and its fat and protein content) decreased linearly and similarly (P=0.60) in both groups. The treatment cows, however, showed quadratic increases in the weights of milk (P=0.03) and ECM (P=0.04) at d42 of the study. Energy corrected milk (d42, p <0.05) and crude protein content of milk (d42, p <0.05; d63, p <0.1) were higher in the cows receiving the probiotic. The proportions of heptadecanoic (C17:0; P=0.002) and linoleic (C18:2; P=0.077) acids in milk fat (g/100 g fat) were higher in the treatment cows on d63. Milk total antioxidant capacity (TAC), malondialdehyde (MDA), and similarly, amyloid A (AA) and haptoglobin (Hp) of milk and blood were not affected. Total antioxidant capacity and MDA were negatively correlated in the control group (r=-0.669, P=0.005). Heptadecanoic acid correlated negatively with milk MDA (r=-0.611, P=0.035) and positively (r=0.591, P=0.043) with serum Hp in the treatment cows. Conclusion: Dietary B. coagulans PRM101 may improve the proportions of C17:0 and C18:2 FA in milk. Some improvements in milk protein and the health status of the cows may also be anticipated. UR - https://ijvr.shirazu.ac.ir/article_5984.html L1 - https://ijvr.shirazu.ac.ir/article_5984_d32a91389f517c79eeb103d259725eb0.pdf ER -