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Effects of Saccharomyces cerevisiae fermentation products on performance and rumen fermentation and microbiota in dairy cows fed a diet containing low quality forage.

Abstract

BACKGROUND

A possible option to meet the increased demand of forage for dairy industry is to use the agricultural by-products, such as corn stover. However, nutritional value of crop residues is low and we have been seeking technologies to improve the value. A feeding trial was performed to evaluate the effects of four levels of Saccharomyces cerevisiae fermentation product (SCFP; Original XP; Diamond V) on lactation performance and rumen fermentation in mid-lactation Holstein dairy cows fed a diet containing low-quality forage. Eighty dairy cows were randomly assigned into one of four treatments: basal diet supplemented with 0, 60, 120, or 180 g/d of SCFP per head mixed with 180, 120, 60, or 0 g of corn meal, respectively. The experiment lasted for 10 wks, with the first 2 weeks for adaptation.

RESULTS

Dry matter intake was found to be similar (P > 0.05) among the treatments. There was an increasing trend in milk production (linear, P ≤ 0.10) with the increasing level of SCFP supplementation, with no effects on contents of milk components (P > 0.05). Supplementation of SCFP linearly increased (P < 0.05) the N conversion, without affecting rumen pH and ammonia-N (P > 0.05). Increasing level of SCFP linearly increased (P < 0.05) concentrations of ruminal total volatile fatty acids, acetate, propionate, and butyrate, with no difference in molar proportion of individual acids (P > 0.05). The population of fungi and certain cellulolytic bacteria (Ruminococcus albus, R. flavefaciens and Fibrobacter succinogenes) increased linearly (P < 0.05) but those of lactate-utilizing (Selenomonas ruminantium and Megasphaera elsdenii) and lactate-producing bacteria (Streptococcus bovis) decreased linearly (P ≤ 0.01) with increasing level of SCFP. The urinary purine derivatives increased linearly (P < 0.05) in response to SCFP supplementation, indicating that SCFP supplementation may benefit for microbial protein synthesis in the rumen.

CONCLUSIONS

The SCFP supplementation was effective in maintaining milk persistency of mid-lactation cows receiving diets containing low-quality forage. The beneficial effect of SCFP could be attributed to improved rumen function; 1) microbial population shift toward greater rumen fermentation efficiency indicated by higher rumen fungi and cellulolytic bacteria and lower lactate producing bacteria, and 2) rumen microbial fermentation toward greater supply of energy and protein indicated by greater ruminal VFA concentration and increased N conversion. Effects of SCFP were dose-depended and greater effects being observed with higher levels of supplementation and the effect was more noticeable during the high THI environment.

Authors+Show Affiliations

Institute of Dairy Science, College of Animal Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058 People's Republic of China.Institute of Dairy Science, College of Animal Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058 People's Republic of China.Institute of Dairy Science, College of Animal Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058 People's Republic of China.Institute of Dairy Science, College of Animal Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058 People's Republic of China.Diamond V, Cedar Rapids, IA 52405 USA.Diamond V, Cedar Rapids, IA 52405 USA.Institute of Dairy Science, College of Animal Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058 People's Republic of China.Institute of Dairy Science, College of Animal Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058 People's Republic of China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28465826

Citation

Zhu, Wen, et al. "Effects of Saccharomyces Cerevisiae Fermentation Products On Performance and Rumen Fermentation and Microbiota in Dairy Cows Fed a Diet Containing Low Quality Forage." Journal of Animal Science and Biotechnology, vol. 8, 2017, p. 36.
Zhu W, Wei Z, Xu N, et al. Effects of Saccharomyces cerevisiae fermentation products on performance and rumen fermentation and microbiota in dairy cows fed a diet containing low quality forage. J Anim Sci Biotechnol. 2017;8:36.
Zhu, W., Wei, Z., Xu, N., Yang, F., Yoon, I., Chung, Y., ... Wang, J. (2017). Effects of Saccharomyces cerevisiae fermentation products on performance and rumen fermentation and microbiota in dairy cows fed a diet containing low quality forage. Journal of Animal Science and Biotechnology, 8, p. 36. doi:10.1186/s40104-017-0167-3.
Zhu W, et al. Effects of Saccharomyces Cerevisiae Fermentation Products On Performance and Rumen Fermentation and Microbiota in Dairy Cows Fed a Diet Containing Low Quality Forage. J Anim Sci Biotechnol. 2017;8:36. PubMed PMID: 28465826.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of Saccharomyces cerevisiae fermentation products on performance and rumen fermentation and microbiota in dairy cows fed a diet containing low quality forage. AU - Zhu,Wen, AU - Wei,Zihai, AU - Xu,Ningning, AU - Yang,Fan, AU - Yoon,Ilkyu, AU - Chung,Yihua, AU - Liu,Jianxin, AU - Wang,Jiakun, Y1 - 2017/04/28/ PY - 2016/09/13/received PY - 2017/04/06/accepted PY - 2017/5/4/entrez PY - 2017/5/4/pubmed PY - 2017/5/4/medline KW - Corn stover KW - Lactating cow KW - Rumen fermentation KW - Rumen microbiota KW - Saccharomyces cerevisiae fermentation product SP - 36 EP - 36 JF - Journal of animal science and biotechnology JO - J Anim Sci Biotechnol VL - 8 N2 - BACKGROUND: A possible option to meet the increased demand of forage for dairy industry is to use the agricultural by-products, such as corn stover. However, nutritional value of crop residues is low and we have been seeking technologies to improve the value. A feeding trial was performed to evaluate the effects of four levels of Saccharomyces cerevisiae fermentation product (SCFP; Original XP; Diamond V) on lactation performance and rumen fermentation in mid-lactation Holstein dairy cows fed a diet containing low-quality forage. Eighty dairy cows were randomly assigned into one of four treatments: basal diet supplemented with 0, 60, 120, or 180 g/d of SCFP per head mixed with 180, 120, 60, or 0 g of corn meal, respectively. The experiment lasted for 10 wks, with the first 2 weeks for adaptation. RESULTS: Dry matter intake was found to be similar (P > 0.05) among the treatments. There was an increasing trend in milk production (linear, P ≤ 0.10) with the increasing level of SCFP supplementation, with no effects on contents of milk components (P > 0.05). Supplementation of SCFP linearly increased (P < 0.05) the N conversion, without affecting rumen pH and ammonia-N (P > 0.05). Increasing level of SCFP linearly increased (P < 0.05) concentrations of ruminal total volatile fatty acids, acetate, propionate, and butyrate, with no difference in molar proportion of individual acids (P > 0.05). The population of fungi and certain cellulolytic bacteria (Ruminococcus albus, R. flavefaciens and Fibrobacter succinogenes) increased linearly (P < 0.05) but those of lactate-utilizing (Selenomonas ruminantium and Megasphaera elsdenii) and lactate-producing bacteria (Streptococcus bovis) decreased linearly (P ≤ 0.01) with increasing level of SCFP. The urinary purine derivatives increased linearly (P < 0.05) in response to SCFP supplementation, indicating that SCFP supplementation may benefit for microbial protein synthesis in the rumen. CONCLUSIONS: The SCFP supplementation was effective in maintaining milk persistency of mid-lactation cows receiving diets containing low-quality forage. The beneficial effect of SCFP could be attributed to improved rumen function; 1) microbial population shift toward greater rumen fermentation efficiency indicated by higher rumen fungi and cellulolytic bacteria and lower lactate producing bacteria, and 2) rumen microbial fermentation toward greater supply of energy and protein indicated by greater ruminal VFA concentration and increased N conversion. Effects of SCFP were dose-depended and greater effects being observed with higher levels of supplementation and the effect was more noticeable during the high THI environment. SN - 1674-9782 UR - https://www.unboundmedicine.com/medline/citation/28465826/Effects_of_Saccharomyces_cerevisiae_fermentation_products_on_performance_and_rumen_fermentation_and_microbiota_in_dairy_cows_fed_a_diet_containing_low_quality_forage_ L2 - https://jasbsci.biomedcentral.com/articles/10.1186/s40104-017-0167-3 DB - PRIME DP - Unbound Medicine ER -