THE EFFECT OF ENZYMES ON THE ECONOMICS
OF POULTRY MEAT AND EGG PRODUCTION
Lidija
Perić1, Katarzyna Sartowska2, Niko Milošević1,
Mirjana Đukić-Stojčić1,
Siniša Bjedov1, Nedeljka Nikolova3
1University of Novi Sad, Faculty of Agriculture,
Trg Dositeja Obradovića 8, 21000 Novi Sad, Serbia
2Solutions Deployment Team, Alltech Europe,
3"Ss. Cyril and Methodius"
University in Skopje, Institute of Animal Science,
Bul. Ilinden 92a, MK-1000 Skopje, Republic of Macedonia
lidija@polj.uns.ac.rs
The aim of this paper was to study the effects of the
Allzyme SSF® (ASSF) (Alltech Inc.)) in feed for broiler
chickens and laying hens on the production results and economic effects.
The first experiment comprised 1200 broiler chickens divided into 4
treatments: 1. Positive control; 2. Positive control with the addition of
0.02% of ASSF; 3. Negative control (containing 0.3 MJ of energy, 0.1% of
adoptable P and 0.1% Ca less than in the treatment 1).
4. Negative control with the addition of 0.02% of ASSF. By the
application of the enzyme the positive effects on the growth and feed
conversion were obtained both in standard mixtures and the mixtures of
decreased nutritive value. The economic analysis indicated that the
improvement, brought about by the natural additive ASSF, exceeds the
costs of its application. In
the second trial with laying hens the treatments were as follows:
A. Control; B. Control (as A) + 150 g/t ASSF instead of phytase; C.
Reformulated feed with commercial phytase and energy reduced by 0.46 MJ;
D. Reformulated feed (as C) + 150 g/t ASSF instead of phytase. The egg weight was not changed by
dietary treatments but layers
from both groups receiving ASSF (B and D) had a higher laying percentage. The
economic analysis showed that the use of ASSF could lower the feed
cost/kg of eggs in both standard and reformulated diets.
Key words:
broilers; laying hens; enzymes; economic effect
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