ORIGINAL PAPER
Yeast cells as a feed supplement for cattle. 2. Effect of liquid yeast cultures on digestive processes in the rumen of bulls
 
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1
Research Institute of Animal Production, Department of Animal Nutrition and Physiology, 32-083 Balice, Poland
2
The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05-110 Jabłonna, Poland
Publication date: 1995-11-06
 
J. Anim. Feed Sci. 1995;4(4):287–297
 
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ABSTRACT
The experiment was carried out on 12 Black- and -White Lowland bulls with an average body weight of 400 ± 50 kg divided into 4 groups and fed concentrates and meadow hay according to the INRA system. After 2 months of adaptation, the level of metabolites in the rumen was determined and the diet for the respective groups was supplemented with yeast cultures: Saccharomyces cerevisiae 1026, Saccharomyces carlsbergensis brewery strains SK-1 , BS-Bratislava or wine strain T-81. All yeast supplements caused changes in yeast cell density, protozoa number, pH, ammonia concentration and VFA proportion in the rumen of bulls. The greatest growth ability and largest effect on fermentation in the rumen was demonstrated by the brewery strains, Saccharomyces carlsbergensis and Saccharomyces cerevisiae 1026.
ISSN:1230-1388