This work was realized through in the Embrapa Amazon Eastern, in Belem, Para
State, Brazil (1º28´S 48º27´W de Greenwich) to evaluate the effect of four levels
(0%, 15%, 30% and 45%) of concentrate, with by-products of the regional
agroindustry, in substitution to the ensilage of sorghum, in the voluntary consumption
and apparent digestibility of the dry matter, crude protein, crude energy, fiber in
neutral detergent and fiber in acid detergent. A metabolic test was realized in
fourteen days of adaptation and seven days of experimental period, using sixteen
ovines, of five months and 23 kg of live weight, in a completely randomized
experimental design, with four treatments and four repetitions. The data was analyze
by software SAS. The concentrated inclusion of in the diet influenced the voluntary
consumption and the apparent digestibility of all nutrients, being described for
quadratic function. One evidenced a quadratic increase in the apparent
consumption’s of the dry matter and organic matter. However, had been observed,
with increase of the concentrated level of in the ration, significant reductions in
contents of fiber in neutral detergent and fiber in acid detergent. The concentrated
percentage of 30% to 45% of in the diet ration to better consumption’s and
digestibility of the nutrients, except of fiber in neutral detergent and fiber in acid
detergent. The concentrated use in the ensilage of sorghum, provides to better
availability of dry matter in the fodder plant and rise of the nutritional value of the
ration, is capable to promote increase of the animal productivity.
|
