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Articles by Kambiz Nazer-Adl
Total Records ( 2 ) for Kambiz Nazer-Adl
  Tohid Vahdatpour , Kambiz Nazer-Adl , Yahya Ebrahim-Nezhad , Naser Maheri-Sis and Sina Vahdatpour
  This experiment was conducted to determine the effects of increasing, energy to protein ratio and partial decreasing of nutrient contents of diet using different levels of fats on broiler chickens performance and serum lipids. With addition of fats (Poultry oil, Soybean oil and Tallow) in two levels (4 or 8%) to basal diet that was already balanced on NRC (1994) recommendations, seven different non-isocaloric and non-isonitrogenic diets were prepared (12 or 24% increasing of energy to protein ratio in 4 or 8% of fat level addition, respectively) and given ad libitum between 22 to 49 day of age. The blood samples were collected at 35 and 49 day and weight of selected visceral organs were recorded at 49 day. The results suggested that high fat intake had no significant effect on Final Body Weight (FBW) and Feed Conversion Ratio (FCR). Numerically the FBW was higher in all groups that received high fat levels than control group. But abdominal fat deposition only in birds that was fed by additional soybean oil and tallow in 4% level was constant. The liver weight significantly decreased (p<0.01) and abdominal fat weight significantly increased (p<0.05) by elevation of fat level. Serum lipids concentrations had no significant difference in dietary treatments. Serum LDL concentration showed significant elevation from 35 to 49 day (p<0.01), whereas serum cholesterol concentration showed decline at the same times (p<0.05). With increasing of dietary fat level from 4 to 8%, serum cholesterol had showed elevation (p<0.05). Therefore, it seems that broilers are more resistant against the high dietary fat intake and they can be effectively used for nutritional and growth requirements promoting, without mortality.
  S.R. Riyazi , Yahya Ebrahim-Nezhad , Kambiz Nazer-Adl , Naser Maheri-Sis , T. Vahdatpour and P. Fouladi
  This study was conducted to determine the effect of replacing different levels of rapeseed meal with soybean meal on the performance of commercial laying hens. Four levels of rapeseed meal; 0, 5, 10 and 15% were used in diets of 144 Hi-Line (W-36, Strain) laying hens from the age of 44 to 56 weeks. Hens were distributed in a randomized complete block design with 4 treatment, 3 replicates and 12 hens in each replicate. The parameters measured were the feed intake, hen-day egg production, egg mass, feed conversion ratio and egg weight. With increasing of rapeseed meal level in diets, feed intake was showed elevation (p<0.05). Egg weight was significantly higher when birds fed 10% rapeseed meal (p<0.05). No specific trend was observed on the effect of rapeseed meal on egg mass and feed conversion ratio, however these parameters were higher in groups that fed 10% rapeseed meal. With increasing rapeseed meal in diets, production ratio was decreased. It was concluded that; the replacement of 10% rapeseed meal with soybean meal in the layer diets might be useful and had economical benefits for producers.
 
 
 
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