+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Effects of the inclusion of yeast culture (Saccharomyces cerevisiae plus growth medium) in the diet of dairy cows on milk yield and forage degradation and fermentation patterns in the rumen of steers



Effects of the inclusion of yeast culture (Saccharomyces cerevisiae plus growth medium) in the diet of dairy cows on milk yield and forage degradation and fermentation patterns in the rumen of steers



Journal of Animal Science 69(7): 3016-3026



The effects of including yeast culture (YC; Saccharomyces cerevisae plus growth medium; 5 x 10(9) organisms/g) in diets for ruminants was examined in two experiments. In Exp. 1, 32 multiparous Friesian dairy cows were fed between wk 7 to 12 of lactation one of four completely mixed diets based on either hay or straw plus rolled barley (mixed to give concentrate:forage ratios of either 50:50 or 60:40, respectively) with or without 10 g YC/d in a 2(3) factorial design. Supplementation with YC increased DM intake of the cows by a mean of 1.2 kg/d (P less than or equal to .062) and increased milk yield by 1.4 liters/d (corrected to 4% butterfat; P less than or equal to .05). There was an interaction (P less than .05) between diet composition and YC addition; effects of YC were greatest in diets containing 60:40 (concentrate:forage) ratio. In Exp. 2, three steers were fed a diet of 50% hay and 50% rolled barley (DM basis). Hay was available for the major part of the day but barley was fed in two meals/d. Addition of YC to the diet increased (P less than .05) ruminal pH for 4 h after the barley meal. This elevation in pH probably was due to a reduction (P less than or equal to .01) in the concentration of L-lactate in the ruminal liquor of steers given YC (1.43 vs 3.55 mM; P less than or equal to .01). Peak ruminal L-lactate concentration (7.75 mM) in the controls coincided with time of minimum pH values (2 h after the meal of barley); this peak was absent in steers given YC. YC had no effect on the concentration of VFA in ruminal liquor, but the ratio of acetate to propionate was reduced (P less than or equal to .01) from 3.3:1 to 2.8:1 in steers given YC. The extent of DM degradation of hay incubated in the rumen of steers fed the hay and rolled barley diet was increased (P less than .05) in the presence of YC at 12 h of incubation, but degradation was similar in all treatment groups after 24 h of incubation. Presence of yeast culture in the rumen had effects on ruminal stoichiometry. An increased rate of forage degradation may have increased forage intake and productivity of these dairy cows.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 002093339

Download citation: RISBibTeXText

PMID: 1885411


Related references

The effects of the inclusion of a yeast culture supplement in the diet on milk yield and milk composition of dairy cows, and on digestion and patterns of ruminal fermentation in steers. Zimbabwe Journal of Agricultural Research 30(1): 21-31, 1992

Rumen probiosis the effects of addition of yeast culture viable yeast saccharomyces cerevisiae plus growth medium on patterns of rumen fermentation. Animal Production 48(3): 665, 1989

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: 36, 2017

Effect of yeast culture (Saccharomyces cerevisiae) plus growth medium supplementation on rumen fermentation in buffalo calves fed high roughage diet. International Journal of Animal Sciences 13(2): 121-126, 1998

Effects of Saccharomyces cerevisiae yeast culture on milk production, milk composition and some rumen and blood parameters of dairy cows. Veteriner Fakultesi Dergisi, Uludag Universitesi 19(1/2): 9-17, 2001

Rumen probiosis the effects of including yeast culture saccharomyces cerevisiae plus growth medium in diets for sheep fed continuously or in meal fed steers. Journal of Dairy Science 72(Suppl. 1): 522, 1989

The effects of yeast culture (Saccharomyces cerevisiae) on some blood parameters and milk yield in dairy cows. Veteriner Fakultesi Dergisi, Uludag Universitesi 18(1/2): 109-118, 1999

The yeast culture Saccharomyces cerevisiae (Strain 47) as manipulator of rumen fermentation in postpartal period of dairy cows. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 53(1): 27-33, 2005

A note on the effect of supplementation of yeast culture (Saccharomyces cerevisiae plus growth medium) in the diet of buffaloes on milk yield and composition. Animal Production 55(3): 440-442, 1992

A meta-analysis of the effects of feeding yeast culture produced by anaerobic fermentation of Saccharomyces cerevisiae on milk production of lactating dairy cows. Journal of Dairy Science 95(10): 6027-6041, 2012

Effects of supplemental yeast (Saccharomyces cerevisiae) culture on NDF digestibility and rumen fermentation of Forage sorghum hay in Nubian goat's kids. 2007

The Nutritive Value of Live Yeast Culture (Saccharomyces cerevisiae) and Its Effect on Milk Yield, Milk Composition and Some Blood Parameters of Dairy Cows. Asian-Australasian Journal of Animal Sciences 24(10): 1377-1385, 2011

Effects of yeast ( Saccharomyces cerevisiae ) supplementation on intake, digestibility, rumen fermentation and milk yield in Nili-Ravi buffaloes. Iranian Journal of Veterinary Research 19(2): 96, 2018

Effects of yeast culture on rumen fermentation, digestibility and duodenal flow in dairy cows fed a silage based diet. Livestock Production Science 32(3): 219-229, 1992

Effects of live yeast culture supplementation (Saccharomyces cerevisiae) and nutritional management on ruminal pH and fermentation in early lactation dairy cows. Journal of Dairy Science 93: 872-872, 2010