Animal feed resources information system

Reaño et al., 1992. Livest. Res. Rural Dev., 4 (2): 67

Document reference 
Reaño, A. ; Meléndez, A. ; Márquez J. ; Combellas J., 1992. Influence of fish meal and dehydrated brewers grains on intake, live weight gain and rumen digestion of growing cattle consuming fresh cut forage. Livest. Res. Rural Dev., 4 (2): 67

Two feeding trials were carried out to evaluate the influence of by-pass protein on the intake and live-weight gain (LWG) of growing cattle consuming a basal diet of fresh cut forage. A third trial was carried out with rumen fistulated dry cows to evaluate the effect of these supplements on some characteristics of rumen fermentation. The use of fish meal as a source of by-pass protein resulted in moderate increments in LWG without effects on forage consumption when substituting urea in a supplement based mainly on maize meal. The use of urea increased the rumen ammonia N concentration but did not affect the degradation of forage in nylon bags. The use of a supplement based exclusively on sources of by- pass protein, such as fish meal and dehydrated brewers grains resulted in small non-significant (P>0.05) increases in LWG compared with equal amounts of a supplement which is highly degradable in the rumen.

Citation key 
Reaño et al., 1992