UMM Logo

Universitas Muhammadiyah Malang


Free Download Journals Directory


International Journal of Poultry Science

.: Home > International Journal of Poultry Science > 2009 > Volume 8 Number 12 > H. Hajati, M. Rezaei and H. Sayyahzadeh

The Effects of Enzyme Supplementation on Performance, Carcass Characteristics and Some Blood Parameters of Broilers Fed on Corn-Soybean Meal-Wheat Diets

H. Hajati, M. Rezaei and H. Sayyahzadeh
Department of Animal Science, College of Animal Science and Fisheries, Sari Agricultural Sciences and Natural Resources University, P.O. Box 578, Sari, Iran
Abstract :

In a completely randomized design the effects of a multi-enzyme (Endo-feed-W) supplementation on performance, carcass characteristics and some blood parameters of Cobb 500 broilers fed on  cornsoybean meal-wheat diets were studied. The enzyme levels added to the diets were 0.00%  (control) and 500mg kg-1 DM. Enzyme supplementation significantly improved body weight gain, feed to gain ratio, relative growth, energy and protein efficiency from 11-28 d of age. Adding enzyme significantly increased body weight gain, decreased feed intake and improved feed to gain ratio, energy and protein efficiency from 29-44 d of age (p<0.05). Body weight gain, feed intake, relative growth, energy and protein efficiency was increased and feed to gain ratio was decreased by enzyme supplementation from 29-44 d (p<0.05). Enzyme addition significantly increased carcass and thigh percentages at 44 d of age. Adding enzyme significantly increased the concentration of blood triiodothyronine (T ) at 28 and 42 d and reduced the concentration of blood thyroxin 3 (T ) at 42 d of age. Enzyme inclusion increased the concentration of blood total cholesterol at 10, 28 and 42 4 d of age, however HDL-cholesterol and triglyceride concentrations increased at d 10 and 42 (p<0.05). The concentration of blood uric acid was significantly decreased at d 28 and 42 in broilers fed enzyme supplemented diets.

Keywords :
Multi-enzyme, performance, carcass characteristics, blood parameters, broilers

Date Deposited : 07 Jul 2011 10:29

Last Modified : 07 Jul 2011 10:29

Official URL: http://www.pjbs.org/ijps/ijps.htm

Volume 8, Number 12, - 2009 , ISSN 1682-8356

Download:
Full Text Original
Abstract : pdf doc