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Articles by M. Pilevar
Total Records ( 3 ) for M. Pilevar
  J. Arshami , M. Heydar-Poor , H. Zarghi , M. Pilevar and M. Esmailzadeh
  Oxymetholone at 0.6 mg/kg feed or mixed with ZnSO4 (45mg/kg feed), testosterone at 10 mg/kg feed or mixed with ZnSO4 (45 mg/kg feed) and 0 mg/kg of either one were given to 180 turkey chicks (n = 9; r = 4) from 6-18 weeks of age to determine their effects on growth performance. Body Weight (BW) was increased gradually in all treatments when compared to the control group with the highest level for oxymetholone and testosterone alone respectively. Feed Intake (FI) during 12 weeks of study decline slightly in all treatments with the lowest level for oxymetholone + ZnSO4 and the highest level for control group. Feed Conversion Ratio (FCR) at the end of study was 4.77 for control group and 4.15, 4.32, 4.50 and 4.69 for different treatments, respectively. Growth Rate (GR) differed for each week and treatment. Overall, the treatment groups showed higher GR when compared to control group in every week. The percentage of Carcass Weight (%CW) was increased significantly (p<0.05) in all treatments in comparison with control group with highest level for testosterone + ZnSO4. The treatments did not influence significantly on the internal organs by the end of study. Oxymetholone induced BW and %CW (p<0.05) with less FI and FCR when compared to testosterone and control group in turkey chicks.
  J. Arshami , M. Pilevar and M. Elahi
  The growth and reproduction performance and egg production parameters in 128 pullet chicks were monitored during 42 days received 5, 7.5 and 10% Flaxseed (FS) in their diet as a treatment. One-day-old Hy-line W-36 pullet chicks were divided into four groups of Control (C) and treatments (T1, T2 and T3) with 32 pieces in each one and 4 replicates. The chicks received ad libitum feed and water from the first day of age to week 22. Birds were individually penned from week 18 to determine time of oviposition and egg weight and quantity. The mean Body Weight (BW) and Feed Intake (FI) were recorded and calculated every 3 weeks. One pullet from each replicate on week 8 and day of oviposition was sacrified. Then, the weight of internal organs as percentage including: femur, FeW; breast, BrW; heart, HW; spleen, SW; liver, LW; gut, GW; fat cavity, FW; oviduct, ovary and Large Yellow Follicles (LYF) and number of LYF were measured. Our results indicated that as the level of FS increases from 5-7.5% and 10%, the BW and FI reduce, thus FCR increases in pullets. The evaluation of internal organs at 8th week and 1th oviposition, revealed no significant differences between treatments and control group. Although, in the 1st time, FS treatments increased HW and LW, but decreased FW; whereas in the 2nd time, FeW, BrW and GW induced and SW and LW reduced. Also, reproduction parameters showed reduction in weight of oviduct, ovary and LYF and number of LYF in treatment group. In addition, the weight of egg at oviposition, number of days to photo-stimulation and egg production on week 22 in T2 increased in birds received FS. Overall, the results indicated that feeding 7.5% of FS to pullets may produce more eggs than other treatments.
  H. Hashemipour , H. Kermanshahi and M. Pilevar
  In this experiment sodium bentonite was evaluated for its effect on egg yolk pigmentation and performance when synthetic pigment was added to the diet of laying hens. About 256 Hy-Line W-36 laying hens 35 weeks old were allocated to 8 experimental diets with 4 replicates each. Four levels of sodium bentonite (0.0, 1.0, 2.0 and 3.0%) and 2 levels of synthetic pigment (0.0 and 0.04%) were used for the 12 week experiment with a 4x2 factorial arrangement and a completely randomized design. Pigment was supplied by 20 g of lucantin and 20 g of xanthin that were diluted with 9960 g wheat bran. About 1 week before the experiment, the birds fed dietary treatments for adaptation. The measured records were feed intake, feed conversion ratio, egg production, egg weight, specific gravity, shell percent, shell thickness and yolk color index. The addition of sodium bentonite decreased (p<0.05) the specific gravity and yolk color index compared to the control diet. The addition of pigment significantly increased specific gravity and as expected, increased the yolk color index compared to the control diet.
 
 
 
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