Effect Of Adding Different Levels Of Soluble Iraqi Probiotic On Production Performance Of  Broiler Chickens

	Effect Of Adding Different Levels Of Soluble Iraqi Probiotic On Production Performance Of Broiler Chickens
Journal of Tikrit University For Agriculture Sciences
Article 1, Volume 13, Issue 2, 2013, Pages 127-135
Abstract
This study was carried out at the poultry farm of Animal production department , College of Agriculture , University of Tikrit during the period from (6.10.2011) to (10/11/2011) in order to identify the effect of addition of three different levels of (Iraqi Soluble Probiotic) to drinking water on production performance of Broiler chickens (Ross 308) . A total of four hundred and forty , one-day-old broilers (Ross 308) were randomly assigned to four treatments with three replicates of forty chicks . the treatments were as follows:- Treatment one (control treatment): The birds were given normal drinking water free of any addition , while in second , third and fourth Treatment (0.5 , 1 , 1.5 gm probiotic per one liter of drinking water) were add consecutively . The results showed that Treatments (four , third) improved significantly (P<0.05) compared to second treatment in live body weight at fifth week of age . Treatment three improved significantly (P<0.05) in weight gain compared to treatment two at the fourth week of age while treatment three , four improved significantly in total weight gain (1-5 week) compared to treatment two . Treatment (four) improved significantly (P<0.05) in feed conversation ratio at the second week of age compared to control treatment .
Keywords
Probiotic; broiler; performance

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