EFFECTS OF BARLEY PROCESSING ON THE BIOPRODUCTIVE INDICES IN FATTENING WEANED LAMBS

Abstract

The objective of our researches was to observe the nutritive and productive effect of
the ratio, offered at discretion, composed of alfalfa hay and barley under the
following presentation forms: whole grains, roughly ground (4mm) with and without
addition of yeast, strain Yea-Sacc1026, to lambs submitted for fattening. The
experiment lasted 54 days, the biological material was represented by Turcana
lambs, grouped in three lots (n=12). Growth performances were significant bigger
(p< 0.04) for the final body weight, total weight gain and average daily gain, but the
specific intake was decreased with 0.49 UNC in lambs that consumed ground barley
prior to those that consumed whole barley grains. The addition of Saccharomyces
cerevisiae, strain Yea-Sacc1026 in the ground barley at 4 mm has a more productive
and evident effect (p<0.02) regarding final body weight, total weight and average
daily weigh compared to the lambs fed with whole barley grains, with a specific
intake lower with 0.89 UNC.