0.857
IF5
0.900
IF
Q3
JCR
0.92
CiteScore
0.405
SJR
Q2
SJR
20
MNiSW
142.18
ICV
SHORT COMMUNICATION
 
CC-BY 4.0
 
 

Effects of processing maize grains and soyabean on rumen fermentation and development of Holstein bull calves

Y. Q. Zhang 1,  
X. Z. Deng 1,  
Z. M. Zhou 1,  
L. P. Ren 1,  
Q. X. Meng 1  
 
1
State Key Laboratory of Animal Nutrition, Beef Cattle Research Center and College of Animal, Science and Technology, China Agricultural University, Beijing 100094, P.R. China
J. Anim. Feed Sci. 2007;16(Suppl. 2):525–530
Publish date: 2007-09-17
KEYWORDS:
ABSTRACT:
A feeding trial using 12 Holstein bull calves (21±3 d) was conducted to investigate the effect of different processed maize grain and full fat soyabean included in the starter diets on their rumen fermentation and development. Three treatment starter diets contained different processed maize grain and soyabean: steam-flaked maize and soyabean (SFMS), extruded maize and soyabean (EMS), and ground maize and raw soyabean (GMS). During 10-week trial, total rumen VFA concentration tended to be influenced by different processing methods at wk 6 and 9 (P<0.10). The molar proportion of butyrate for calves receiving SFMS starter diets was higher than that of EMS and GMS starter diets (P<0.05) at wk 5 and 11. Rumen papillae development characteristics expressed by papilla length, papilla width and rumen wall thickness were remarkably different among treatment starter diets (P<0.05).
CORRESPONDING AUTHOR:
Q. X. Meng   
State Key Laboratory of Animal Nutrition, Beef Cattle Research Center and College of Animal, Science and Technology, China Agricultural University, Beijing 100094, P.R. China
ISSN:1230-1388