0.857
IF5
0.900
IF
Q3
JCR
0.92
CiteScore
0.405
SJR
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SJR
20
MNiSW
165.24
ICV
SHORT COMMUNICATION
 
CC-BY 4.0
 
 

Effect of yeast culture or cellulolytic enzymes in licking blocks on rumen fermentation and fibre degradation in vitro

M. Y. Can 1,  
L. Wang 1,  
Q. X. Meng 1,  
L. P. Ren 1,  
Z. M. Zhou 1  
 
1
State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing100094, P.R. China
J. Anim. Feed Sci. 2007;16(Suppl. 2):494–499
Publish date: 2007-09-17
KEYWORDS
ABSTRACT
An in vitro gas production experiment was conducted to determine the effect of yeast culture (YC) and cellulolytic enzyme (CE) included in urea-molasses-mineral (UMM) licking blocks on ruminal fermentation characteristics and fibre degradation of wheat straw. Five treatment blocks were: 1. control (CON, no UMM block added), 2. typical block (B), 3. yeast culture block (YCB), 4. cellulolytic enzyme block (CEB) and 5. yeast culture plus cellulolytic enzyme block (YCCEB). The results showed that gas production and both dry matter and cell wall degradabilities were significantly enhanced by supplemental UMM licking blocks (P<0.01), of which the greatest gas production and the fibre degradabilities were found with the treatment YCB, followed by YCCEB, CEB, and B. It is concluded that yeast culture, cellulolytic enzymes or their combination included in licking blocks has a potential to boost rumen fermentation and fibre degradation.
CORRESPONDING AUTHOR
Z. M. Zhou   
State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing100094, P.R. China
ISSN:1230-1388