Dietary Saccharomyces cerevisiae supplementation improves feed intake and milk quality of dairy cows

Abstract

The objective of this study was to evaluate the effects of daily dietary supplementation of Saccharomyces cerevisiae-contained product (SCP) on feed consumption, milk yield and quality of milking cows under Vietnam weather condition from November 2022 to January 2023 at the dairy farm of ANOVA Binh Duong. The study was conducted using a total of 94 Holstein Friesian (HF) crossbred cows with at least 3/4 HF blood, with days in milk (DIM) at days, and lasted 30 days (the first 15 days for the control without SCP supplementation (control) and the next 15 days for the SCP treatment with SCP addition at 5 g/cow per day (SCP). Results showed that the average feed intake (as fed) of cows in the control period was significantly lower than that of cows in the SCP period (P < 0.01). The SCP supplementation did not affect (P > 0.05) the milk productivity and milk fat, while milk protein, lactose, and solids not fat (SNF) from the milk of cows in the SCP group were significantly improved (P < 0.01). The SCP supplementation also significantly enhanced (P < 0.05) the body condition score (BCS) of dairy cows. Briefly, these results suggest that the dietary SCP addition of 5 g/cow per day seems to significantly improve the feed intake, BCS and milk quality parameters of lactating cows.