ABSTRACT
The aim of this study was to investigate the effects
of Saccharomyces cerevisiae and its
fermentation products on performance, blood hormone levels and rumen floral
composition in peripartum dairy cows. Sixty perinatal cows were selected and
allocated to two groups according to parity and expected date of delivery. Each
group was supplemented with Saccharomyces
cerevisiae and its fermentation product 0 or 100 g. The results showed that Saccharomyces cerevisiae and its
fermentation products could significantly increase the feed intake of
peripartum dairy cows (P < 0.01), increase the lactose content after 21 days
postpartum (P < 0.01), and tend to increase milk production (P = 0.052).
There was no significant effect on other milk components, the apparent
digestibility of nutrients. There was a tendency to increase milk production
and reduce the number of somatic cells in milk; increase blood levels of
glucagon (P < 0.01) and β-hydroxybutyrate
(P = 0.01), reducing the insulin content (P = 0.02). Saccharomyces cerevisiae reduced
the abundance of rumen microbes in peripartum dairy cows but had no effect on
rumen microbial diversity. Compared with the control group, the supplemented
group showed reductions in the abundance of genera Bacillus (P = 0.03), Butyrivibrio (P = 0.01), Denitrobacterium (P =
0.01), and Mogibacterium (P <
0.01), Porphyromonas (P = 0.05), Saccharofermentans (P < 0.01), Sphaerochaeta (P = 0.02), Streptococcus (P = 0.04) and other
genera. There were significant increase in the content of Acidaminococcus (P = 0.03), Allisonella (P < 0.01), Bulleidia (P <
0.01), Corynebacterium (P = 0.01), Dialister (P < 0.01), Faecalibacterium (P = 0.02), Faekalitalea (P = 0.03), Fibrobacter (P = 0.04), Flavobacterium (P = 0.03), Kandleria (P < 0.01), Paraprevotella (P < 0.01), Pyramidobacter (P = 0.05), Roseburia (P < 0.01), Succinivibrio (P < 0.01) and other
genera. The main metabolic pathways such as tryptophan metabolism and steroid
hormone biosynthesis in perinatal dairy cows were determined for Saccharomyces cerevisiae and its
fermentation products.
Share and Cite:
Lin, X. , Li, K. , Ju, L. , Hao, X. , Jiang, Y. , Hou, Q. , Hu, Z. , Wang, Y. and Wang, Z. (2021) Effects of Supplementation with
Saccharomyces cerevisiae and Its Fermentation Products on Production Performance and Its Mechanism in Perinatal Dairy Cows.
Advances in Bioscience and Biotechnology,
12, 193-212. doi:
10.4236/abb.2021.127013.