Taking maximum advantage of the productive potential of the shrub and tree species represents an unresolved challenge for researchers and producers. Mulberry is a forage tree perfectly adapted to tropical conditions which has shown numerous possibilities of use in ruminant diets. Its is a forage that arouses every time more interest among specialists and producers in charge of promoting ways of sustainable production and exploitation, as independent as possible from imported inputs but with the solutions to the growing demand of basic products of the family basket. Not being a legume and having high nutrient requirements, fertilisation is more than necessary, practically indispensable. It has been shown that it is possible to supply these needs with organic fertilisers or with a combination of organic and inorganic fertilisers.
Fertilisation considerably stimulates biomass production.
It is also possible to plant leguminous trees with mulberry to use their foliage as green manure. With dairy goats, Rojas et al . Few results, however, have explained the effects of the microbial population on the various nutrients present in its foliage, its degradation rate, digestion of cellular wall, nitrogenous compounds and by-pass protein. In this article, data on forage quality, rumen degradation and goat growth rates are presented. The nylon bag technique for determining in situ degradation as described by Orskov et al .