0.857
IF5
0.900
IF
Q3
JCR
0.92
CiteScore
0.405
SJR
Q2
SJR
20
MNiSW
165.24
ICV
SHORT COMMUNICATION
 
CC-BY 4.0
 
 

Protein supply and requirement of grazing yak in China

B. Xue 1, 2, 3  ,  
S.-J. Liu 1,  
X.-Q. Zhao 2,  
L. H. Hu 1,  
 
1
Qinghai Academy of Animal Science and Veterinary Medicine, Xining 810003, P.R. China
2
Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810003, P.R. China
3
Institute of Animal Nutrition, Sichuan Agricultural University, Ya’an Sichuan 625014, P.R. China
J. Anim. Feed Sci. 2007;16(Suppl. 2):86–91
Publish date: 2007-09-17
KEYWORDS
ABSTRACT
Forage supply of native grassland in Qinghai-Tibet Plateau reaches the greatest point in August and the lowest in the beginning of May. Feed intake of yak reached the greatest point in spring, followed by winter, and the lowest in autumn. Digestible CP (DCP) requirement (g/d) for maintenance in growing yak is 6.09 W0.52, and that for gain is (1.1548/DG + 0.0509 W0.52)-1. There is a sever shortage of forage and CP supply in winter and spring. Grazing yak should be supplemented with 67.4 g/d DCP in the first cold season and 58.4 g/d DCP in the second cold season for normal growth.
CORRESPONDING AUTHOR
B. Xue   
Qinghai Academy of Animal Science and Veterinary Medicine, Xining 810003, P.R. China
Copy url
Share
 
 
ISSN:1230-1388