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Articles by Yahya Ebrahimnazhad
Total Records ( 2 ) for Yahya Ebrahimnazhad
  Jamshid Ghiasi Ghalehkandi , Ahmad Asghari , Yahya Ebrahimnazhad , Saeed Ghaemmaghami and Mohammad Reza Valilu
  An experiment was conducted to study the effects of different levels of perlite on serum calcium, phosphor and chloride in broiler chicks. The experimental design was arranged as randomized complete blocks in 4x2 factorial arrangement of treatment. About 180 male broilers of Ross 308 commercial hybrid was designated into 3 groups (0, 2 and 4%). About 3 replicates of 20 birds were assigned to each treatment. Control treatments were fed base diet and treatments with the same base diet plus 2 and 4% perlite. The feeding continued up to the age of 42 days. At the 21 and 42 days, 6 birds from each treatment were selected for serum calcium, phosphor and chloride in broiler chicks. Blood samples were collected from the vena axillaries). As intake of perlite, significantly increased serum calcium, phosphor and chloride at weeks on broiler chicks (p<0.05) these data suggested that perlite administration did not have significant effect on control treatment comparing to treatment.
  Shayan Ghanbari , Yahya Ebrahimnazhad , Behrad Eshratkhah and Kambiz Nazeradl
  This study investigated the effect of dietary supplementation of chromium from chromium picolinate source on the performance, carcass traits of broilers. Three hundred sixty one day old commercial male broilers (Ross 308) were randomly allocated to one of 24 floor pens in a completely randomized design with six treatment and four replicate groups and fifteen chicks per each pen. Dietary treatments consisted of 0 (control), 400, 800, 1200, 1600 and 2000 μg Cr per kg of basal diet. Feed intake, body weight gain and feed conversion ratio were measured during 1 to 21, 21 to 42 and 1 to 42 days of age. At 42 days of age two birds from each pen were selected and after weighing slaughtered and dissected manually. Carcass yield, liver, abdominal fat, pancreas, thighs and breast weight declared as percentage of live body weight. The results showed that performance of broilers was not affected by dietary supplemental chromium. Also supplementation of broiler diet didn't influence carcass traits. Nevertheless there is a non significant increase in liver and pancreas weight while increasing the Cr content of the diet. It can be concluded that chromium content of the basal starter and finisher diet and drinking water is adequate to normal requirement of broilers under such experimental conditions and supplementing of Cr may not be essential.
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