Replacement of urea by part of soybean meal in broiler diets

Subject Areas :

Ebrahim  Bahraini ¹ (Scientific Board of Islamic Azad University - Yasuj, Branch)
Javad  Pourreza ² (Professor of Agriculture Faculty, Isfahan University of Technology)
Mohammad Kazem  Dastghab Beheshti ³ (Scientific Board of Islamic Azad University - Yasuj, Branch)
Lotf Ollah  Bornaee ⁴ (Scientific Board of Islamic Azad University - Yasuj, Branch)

Received: 2006-03-06 Accepted : 2006-06-08 Published : 2006-08-23

Keywords: Broiler, Urea, Diets, soybean meal,

Abstract :

In order to study the effect of urea in broilers diet, an experiment was conducted to compare seven dietary treatments in which urea was substituted for a part of soybean meal. In a completely randomized design, 420 1-old broiler chicken (Arian) were divided into 21 groups (replicates). Each replication contained 15 birds and each ditary treatment was assingned to three groups as follow. First group: The birds were given urea during the two and three weeks and during the other weeks they consumed conventional diet. Second group: the bird fed the diet containing urea during the forth and seventh weeks and they were feed conventional diet during the other periods. Third group: The birds were control group which were feed with conventional diet without urea during all the exprimental period. The used diets were isocaloric and isonitrogenous and urea was used at levels of 0.203 , 0.406 and 0.609%. The results indicated, using urea in the diets of broiler at mentioned levels had no any significant adverse effect or broiler performance including body weight gain/feed intake, feed conversion ratio decresing percentage and abdominal fat.

References:

1- پوررضا، ج. 1379. تغذیه مرغ (ویرایش سوم). چاپ دوم، انتشارات ارکان، 339 صفحه.

2- دانش مسگران، م، 1378. اسیدهای آمینه در تغذیه دام. مؤسسه چاپ و انتشارات دانشگاه فردوسی مشهد، 285 صفحه.

3 – Kagan, A. and S. L. Balloun. 1976. Urea and Aspartic acid supplementaion of Low- protein broiler diets. Br. Poult Sci. 17:403-413.

4- Nagalakashmi D., V. R. Sastry, R. C. Katiyar, D. K. Agrawal and S. V. Verma. 1999. Performance of broiler chicks fed on diets containing urea ammoniated neem cazadirachta Indica kernel cake. Br. Poult Sci.; 40:77-83.

5- NRC. 1994. Nutrient Requirment of Poultry. National Academy Press. Washington D.C.

6- Tukey, J. W. 1967. Tables of the power of the F test. Journal of the American statistical Association. 62: 525-539.