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Articles by Alireza Ahmadzadeh
Total Records ( 2 ) for Alireza Ahmadzadeh
  Habib Aghdam Shahriar , Kambiz Nazer Adl , Yahya Ebrahim Nezhad , Ramin SalamatDoust Nobar and Alireza Ahmadzadeh
  An experiment was conducted to investigate the effects of dietary fat type and different levels of vitamin E on broiler breeder`s performance and egg vitamin E contents. The experiment was carried out using a completely randomized design with factorial arrangement of 2x3 (0 and 4% of fat type and 0, 75 and 150 mg kg-1 of vitamin E supplement). In this experiment fat type was Canola Oil (CO) and tallow (TF). Ninety broiler breeder hens (Ross 308) in 3 replicates of 5 broiler breeder hens per each were fed dietary treatments at 27 weeks in eight weeks period. Egg production and average of egg weight were recorded weekly. Eggshell quality was recorded at 4 weeks intervals. Results showed that Body weight, feed intake and feed conversion ratio of hens and males were not significantly affected by experimental diets. Also egg weight and daily egg production, laying percentage and hatchability were not significantly affected by experimental diets, but hens were fed diets with Canola oil than Tallow and added 75 mg kg-1 vitamin E supplement had better performance. The levels of vitamin E in eggs (p<0.01), total fat percentage (p<0.05) were significant in 150 mg kg-1 vitamin E supplement than other groups. MDA concentration of eggs in final of experiment was not significant between groups but after four day storage, intraction effects between fat type and vitamin E concenteration were significant (p<0.01). These data were suggest that supplementation of 4% Canola oil with 75 mg kg-1 of vitamin E to diets based on corn-soybean meal can influence egg vitamin E contents without any adverse effects on broiler breeder body weight and hatchability.
  Naser Maheri-Sis , Bayaz Abdollahi-Ziveh , Ramin Salamatdoustnobar , Alireza Ahmadzadeh , Abolfazl Aghajanzadeh-Golshani and Mehdi Mohebbizadeh
  This study was carried out to determine the chemical composition and ruminal degradability of Soybean Straw (SBS). Samples were collected from several soybean grain threshing farms in Moghan, Iran. Chemical composition for Dry Matter (DM), Crude Protein (CP), Ether Extract (EE), Organic Matter (OM), Neutral Detergent Fibre (NDF), Acid Detergent Fibre (ADF) and Acid Detergent Lignin (ADL) of pooled samples were 89.18, 5.10, 2.85, 96.90, 80.80, 63.20 and 13.00%, respectively. Degradation procedure was performed using nylon bags filled with 5 g of SBS and suspended in the rumen of three fistulated Gezel rams for 0, 2, 4, 8, 16, 24, 48 and 72 h and obtained data were fitted to a non-linear degradation model to calculate ruminal degradation characteristics. Results showed that soluble fraction (a) of SBS were very low, especially in case of DM and OM. Potential degradability (a + b) of SBS for DM, OM and CP were 36.97, 37.74 and 68.07% and for effective degradability (Out flow rate 0.02 h-1) were 21.40, 22.27 and 48.30%, respectively. It is conclude that, SBS have low DM and OM degradability and higher CP degradability in the rumen. Based on chemical composition and degradation characteristics, untreated SBS can be used in the ration of ruminant in limited levels.
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