Effect of grain vinegar feeding on milk production and fatty acid profile of Holstein cows|RISS 상세보기

다국어 초록 (Multilingual Abstract)

Incorporating organic acids into cattle feed should be carefully considered because dietary organic acids may affect voluntary feed intake and rumen fermentation. We conducted a feeding trial for the practical evaluation of grain vinegar. Lactating Holstein cows (n = 19) were divided into two groups, then were subjected to each of two treatments in a crossover design. The rumen fermentation parameters, blood urea nitrogen and non-esterified fatty acids (NEFA), milk composition, and milk fatty acid content were analyzed. No notable changes were observed in rumen fermentation parameters or blood metabolites. Corn silage intake, milk production, and 4% fat-corrected milk (FCM) were not affected by vinegar supplementation. The proportions of fatty acids in milk originating from de novo synthesis in the mammary gland were 25.2% and 25.4% in control and vinegar-fed groups, respectively. The levels of branched-chain fatty acids iso-C14:0, iso-C15:0, and iso-C16:0 were substantially decreased by vinegar supplementation, are known to be related to rumen environmental stress. This study showed that feeding grain vinegar to lactating dairy cows had no effect on feed intake, rumen fermentation, or milk production, although the proportion of some branched-chain fatty acids in the milk decreased.

번역하기

참고문헌 (Reference)

1 Annison EF, "The oxidation and utilization of glucose and acetate by the mammary gland of the goat in relation to their over-all metabolism and to milk formation" 175 : 372-385, 1964

2 Colman E, "The logistic curve as a tool to describe the daily ruminal pH pattern and its link with milk fatty acids" 95 : 5845-5865, 2012

3 Senel SH, "Relation of dietary acetic and butyric acids to intake, digestibility, lactation performance, and ruminal and blood levels of certain metabolites" 50 : 327-333, 1967

4 Weatherburn MW, "Phenol-hypochlorite reaction for determination of ammonia" 39 : 971-974, 1967

5 Daniel JLP, "Performance of dairy cows fed high levels of acetic acid or ethanol" 96 : 398-406, 2013

6 Adewuyi AA, "Non esterified fatty acids (NEFA) in dairy cattle. A review" 27 : 117-126, 2005

7 Fievez V, "Milk odd-and branchedchain fatty acids as biomarkers of rumen function—an update" 172 : 51-65, 2012

8 Abdoul-Aziz SKA, "Milk odd and branched chain fatty acids in dairy cows : a review on dietary factors and its consequences on human health" 11 : 3210-, 2021

9 Sheperd AC, "Long-term effects of acetate and propionate on voluntary feed intake by midlactation cows" 81 : 2240-2250, 1998

10 ISO, "International standard ISO15884:2002, IDF 182:2002: milk fat – preparation of fatty acid methyl esters"