Modelling the effect of supplementing elephant grass with lablab and desmodium on weight gain of dairy heifers under stall-feeding system

File Upload: 
Author: 
Tibayungwa, F.
Nabasirye, M.
Mugisha, J. Y. T.
Publisher: 
African Journal of Agricultural Research
Publication Year: 
2011
Description: 
This study reports on a simulation growth model developed to predict daily gain (DG) of dairy cattle heifers. The model input parameters are gross energy (GE), ash, crude protein (CP), organic matter digestibility (OMD), dry matter (DM), protein degradation variables and heifer initial body weight. Results from the simulation model show that at low levels of CP in elephant grass (Pennisetum purpureum) there is improved DG when supplemented with desmodium (Desmodium spp.) or lablab (Lablab purpureus) but as the CP in elephant grass increases there is reduced benefit from supplementation and at CP ³ 100 g/kgDM there is no improvement in DG due supplementation. Supplementation with either lablab or desmodium at same percentage of diet had similar effect on DG. It is concluded that these two forage legumes could improve heifer growth, consequently reducing the time from weaning to mating weight of heifers in smallholder dairying where the CP content of elephant grass is low.
Name of Journal: 
African Journal of Agricultural Research
Volume: 
6
Number: 
14
Pages: 
3232-3239
Resource Type: 
Text
Document Type: 
Journal Issue/Article
Digital Object Identifier (DOI):: 
10.5897/AJAR10.121
Rangelands Partnership

Collection of articles, citations, reports, and other resources emanating from organizations working on rangeland management issues from around the world including articles from the Iranian Rangelands Journal