Ibrahim, Muhammad Holmann, F. Hernández, M. Camero, A.

Contribution of Erythrina protein banks and rejected bananas for improving cattle production in the humid tropics - Ago 2000

1 ilus. 4 tab. 22 ref.

In view of low pasture productivity in the Central American humid tropics where cattle rearing is a major land-use activity, its is important to examine the potential of alternative feed sources for ruminant feeding. Erythrina berteroana, locally known as poro, and green banana (Musa AAA) fruits have been identified as 2 such potential sources. The effects of feeding poro as a grazing supplement and diet supplementation with green banana fruits on cattle productivity were evaluated in a long-term trial (1993-94) in Costa Rica. Daily liveweight (LW) gains were measured and samples of all feed material were analysed for crude protein and in vitro dry matter (DM) digestibility. Pasture availability was high, averaging 0.17 t DM ha day-1 over the grazing period. The main grass species were Paspalum fasciculatum, Axonopus compressus and to a lesser extent African star grass (Cynodon nlemfuensis). DM yields of poro (established as a protein bank in September 1991) declined significantly with time (> 50 percent) when it was managed with a 2-month resting period, but remained higher when subsequently managed with a 3-month resting period. Average daily LW gain of animals was 21 percent to 26 percent higher with 2 hours daily browsing of poro than for animals only grazing pasture. Highest liveweight gain was achieved when diets were supplemented with banana and there was no additional benefit when poro was fed in addition to banana. This suggests that fodder banks of poro or supplements with green banana can improve cattle nutrition in the humid tropics.

0167-4366


ERYTHRINA BERTEROANA
MUSA (BANANOS)
BANANOS
PASPALUM FASCICULATUM
AXONOPUS COMPRESSUS
SISTEMAS SILVOPASCICOLAS
PRODUCCION ANIMAL
GANADO
DIGESTIBILIDAD
EXPERIMENTACION IN VITRO
CONTENIDO DE MATERIA SECA
RAMONEO
ALIMENTACION DE LOS ANIMALES
PROTEINA BRUTA
SUPLEMENTOS
PRODUCTIVIDAD
NUTRICION ANIMAL
TROPICOS HUMEDOS
COSTA RICA