EFFECT OF ENZYMATIC PREPARATIONS ON IMPROVEMENT OF ENERGY UTILIZATION IN BROILER CHICK DIETS 2. CANOLA SEED

Document Type : Research articles.

Authors

1 Animal Prod. Res. Inst., Agric. Res. Center, Ministry of Agric., Doki, Giza, Egypt.

2 Poultry Production Dept, Fac. of Agric., Fayoum Univ., Fayoum, Egypt.

Abstract

An experiment was conducted to study the possibility of partially
replacing Soybean meal with Full-fat canola seeds (FFCS) with/without
multicarbohydrase enzymes and its effect on growth performance,
some carcass traits, some blood serum parameters and economical
efficiency. A total number of 390 unsexed day-old Arbor-Acres broiler
strain chicks were equally divided into 13 groups of similar mean body
weight of 3 replicates each. An experimental corn-soybean meal starter
and finisher basal diets were formulated in which dietary protein was
replaced by FFCS protein at replacement ratios of 5, 10, 15 and 20%.
Diets were formulated to be iso-nitrogenous and iso-caloric being 23%
CP & 3000 kcal ME/kg for the starter diet and 20% CP & 3100 kcal
ME /kg for the finisher diet. Thirteen dietary treatments were
compared. One treatment consisted of the basal diet without FFCS
(positive control diet). Four treatments consisted of the positive control
diet supplemented with 5, 10, 15 or 20% FFCS without enzyme
supplementation (negative control diets). Eight additional treatments
consisted of the negative control diets supplemented with either
Zympex® 008 or Xylam500 enzyme products at a level of 0.05%. Live
growth performance, carcass characteristics, some blood serum
parameters, sensory evaluation of cooked meat and economical
efficiency were determined. From the nutritional and economical point
of view, it was observed that using FFCS up to 20% in both starter and
finisher broiler diets supplemented with Zympex® 008 enzyme product
at a level of 0.05% has no detrimental effect on broiler chick's growth
performance and gave the best economical efficiency.

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