Two hundred eighty days old male broiler chicks(Ross strain) were randomly distributed into seven groups with four replicates (10 birds in each replicate) and were fed diets supplemented with different dietary fat sources.The results indicated that the different dietary treatments did not affect weight gain, feed intake and feed conversion ratio at 21 d (P>0.05). However, addition of dietary fa...

This study was conducted to evaluate the effect of feed restriction on body weight, body weight gain, feed intake, and feed conversion ratio and carcass traits of broilers. Two hundred and forty one day old Hubbard broiler chicks were randomly distributed into five treatments. Each treatment included six replicates of 8 birds each. The five treatments were as follows: T1( birds were fed continu...

This study was conducted to assess the effects of feed particle size (FPZ) and crumble size (CZ) of starter diet on growth performance parameters, carcass characteristics, and small intestinal histomorphology in broiler chicks. Three hundred and sixty male Ross 308 chicks were randomly distributed in a completely randomized design with 3 ´ 2 factorial arrangement consist of three screened FPZs ...

two hundred eighty days old male broiler chicks(ross strain) were randomly distributed into seven groups with four replicates (10 birds in each replicate) and were fed diets supplemented with different dietary fat sources.the results indicated that the different dietary treatments did not affect weight gain, feed intake and feed conversion ratio at 21 d (p>0.05). however, addition of dietary fa...

Background: Implantation is a crucial period determining the success of a full pregnancy. Endocrine disruptors such as phytoestrogens (PEs) were thought to adversely influence embryonic implantations. However, the mechanism by which they upset implantation was not fully elucidated. Aims: The effect of administering soy isoflavones on the implantation of Wistar ...

a total of 700 day old female broiler chicks (ross 308) were distributed into seven groupsin acompletely randomized designwith five replicates, and 20 chicks in each replicate. dietary treatments, timeof the switch from an unsaturated sunflower oil (sfo) to a saturated tallow (t)dietary fat source, were: 1) sfo for the entire growth period (6 weeks), 2) sfo for 5 weeks followed byt for last wee...

this experiment was carried out in order to study the effect of ionophore anticoccidial drugs (salinomycin, maduramycin and their combination) and the comparison of those effects on the performance, carcass characteristics and concentration of some minerals of serum in broiler chicks. this experiment was included four treatments: 1) basal diet, 2) basal diet with 60 mg/kg salinomycin, 3) basal ...

This experiment was conducted to evaluate the effects of the broiler’s genotype (Gt) and ambient temperature (Ta) on performance and core body temperature (Tcore) of broiler chicks. A factorial arrangement of two Gt (Hubbard and ISA J57 chicks) and two Ta (moderate, 23±0.5°C and hot, 33±0.5°C) were used in this study. Performance data (body weight gain, feed intake and feed:gain ratio) were det...