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Bui Xuan An et al., 1991. Livest. Res. Rural Dev., 3 (2): 1-7

Document reference 
Bui Xuan An; Luu Trong Hieu; Preston, T. R., 1991. Multi nutrient blocks (MUB) as supplement for milking cows fed forages of low nutritive value in south Vietnam. Livest. Res. Rural Dev., 3 (2): 1-7
Abstract 

Two experiments were carried out at An Phuoc state farm and on private small farms to determine animal response, farmer acceptance and benefits of supplementing MUB to crossbred Holstein cows. EXPERIMENT 1: On 3 small farms, seven milking cows fed rice straw, native grasses and concentrate were supplemented with 1 kg MUB (5% urea) during 40 days. Milk yield and milk fat content (before and after supplementation) were 7.17 kg/d, 3.4% and 8.17 kg/d and 3.9% respectively. EXPERIMENT 2: Ten cows were divided in two groups: control fed low quality grass and crop by-products and concentrate (as basal diet); experiment group fed basal diet plus 1kg MUB (10%urea)/d. The experiment lasted 140 days. Milk yield, adjusted by covariance for yield prior to starting the trial was (kg/d): 6.257 and 7.203 (SEmean ?0.069) for the control and MUB supplemented animals.

Web 
http://www.lrrd.org/lrrd3/2/an.htm
Citation key 
Bui Xuan An et al., 1991
Datasheets 
Molasses/urea blocks
Rice straw