THE INFLUENCE OF “AVISTIM” PREMIX ADMINISTERED IN LAYING HENS DIET ON THE PRODUCTION PERFORMANCES AND EGG QUALITY

Abstract

The goal of this study was the knowledge of avistim’s influence administered in
laying hens diet on the production performances, egg quality and the carotene
content of eggs. The researches have been made on a number of 162 laying hens,
hybrid Isa Brown, assigned in 3 batches of 54 hens/batch. In the feed of batch 2 (E)
was added avistim premix 1 % and in the feed of batch 3 (E) was added avistim
premix 2 %. The experimental period was 5 weeks, representing the second laying
stage (age 56-61 weeks) following: laying intensity, the average egg weight, the
fodder consumption per egg. To establish egg’s quality, at the end of trial had been
determined: egg structure, egg-shell quality, intensity of yolk’s color and the
carothenes content (La Roche method). The use of avistim determined the
improvement of laying intensity with 3.86% at batch 3E, the improvement of egg
weight with 6.08% at batch 2E and 1.23% at batch 3E, the reduction of fodder
consumption per egg with 3.72% at batch 3E. Also we recorded the improvement of
the weight and thickness of the egg-shell at the experimental batches, the
improvement of yolk’s color and the improvement of carotene content at batches 2E
and 3E. We recommend the use of avistim premix in laying hens diets for the
improvement of the production performances and the yolk pigmentation, which can
influence the commercial value of eggs.