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Articles by E. Rahmatnejad
Total Records ( 8 ) for E. Rahmatnejad
  E. Rahmatnejad , H. Roshanfekr , O. Ashayerizadeh , M. Mamooee and A. Ashayerizadeh
  This experiment was conducted to evaluation the effects of Prebiotic, Garlic powder and Turmeric powder on performance and carcass characteristics of broiler chickens. Based a randomized completely design, 240 days old Ross 308 broilers were distributed into 16 floor pens and reared for 42 days. A basal diet was formulated according to NRC recommendations for starter (0-21 days) and grower (22-42 days) periods. The basal diet was also supplemented with prebiotic Biolex-MB, garlic powder and turmeric powder, resulting 4 dietary treatments were prepared including control group. Each dietary treatment was fed ad-libitum to 4 replicates group of 15 birds at the bigining of rearing period. The result of present study indicated that the diets containing feed additives had no significant effect on broilers performance with an except of Biolex-MB, which improved weight gain and feed conversion ratio (p<0.05). Supplementation of biolex-MB in diet significantly (p<0.05) affected the amount of carcass, thigh and breast (p<0.05). The highest percent of carcass and thigh were found in biolex-MB and control bird groups, respectively (p<0.05). The percent of breast was not affected whit feed treatments.
  E. Rahmatnejad , H. Roshanfekr , O. Ashayerizadeh , M. Mamooee and A. Ashayerizadeh
  This experiment was conducted to evaluation the effects of Prebiotic, Garlic powder and Turmeric powder on performance and carcass characteristics of broiler chickens. Based a randomized completely design, 240 day old Ross 308 broilers were distributed into 16 floor pens and reared for 42 days. A basal diet was formulated according to NRC recommendations for starter (0-21 days) and grower (22-42 days) periods. The basal diet was also supplemented with prebiotic Biolex-MB, garlic powder and turmeric powder, resulting 4 dietary treatments were prepared including control group. Each dietary treatment was fed ad-libitum to 4 replicates group of 15 birds at the beginning of rearing period. The result of present study indicated that the diets containing feed additives had no significant effect on broilers performance with an except of Biolex-MB, which improved weight gain and feed conversion ratio (p<0.05). Supplementation of biolex-MB in diet significantly (p<0.05) affected the amount of carcass, thigh and breast (p<0.05). The highest percent of carcass and thigh were found in biolex-MB and control bird groups, respectively (p<0.05). The percent of breast was not affected with feed treatments.
  O. Ashayerizadeh , B. Dastar , M. Shams Shargh , E. Rahmatnejad and A. Ashayerizadeh
  This experiment was conducted for investigation, the influence of prebiotic, garlic powder and turmeric powder on interior organs and hematological indices of broilers. Based a randomized completely design, 240 days old Ross 308 broilers were distributed into 16 floor pens and reared for 42 days. A basal diet was formulated according to NRC recommendations for starter (0-21 days) and grower (22-42 days) periods. The basal diet was also supplemented with prebiotic Biolex-MB, garlic powder and turmeric powder, resulting 4 dietary treatments were prepared including control group. Each dietary treatment was fed ad-libitum to 4 replicates group of 15 birds at the bigining of rearing period. The lowest (p<0.05) abdominal fat percent and serum cholesterol and triglycerides levels were recorded for broilers fed the diet supplemented with Biolex-MB and garlic powder, While, the highest High Density Lipoprotein (HDL) was recorded for birds fed diet supplemented with garlic powder. Inclusion of Biolex-MB and garlic powder into the diets significantly decreased concentration of Low Density Lipoprotein (LDL) and Very Low Density Lipoprotein (VLDL) in serum (p<0.05).
  O. Ashayerizadeh , B. Dastar , M. Shams Shargh , A. Ashayerizadeh , E. Rahmatnejad and S.M.R. Hossaini
  This experiment was conducted for comparison, the effect of garlic powder, black cumin seeds powder and wild mint powder on performance and carcass characteristics of broiler chickens. Based a randomized completely design, 320 days old Ross 308 broilers were distributed into 16 floor pens and reared for 42 days. A basal diet was formulated according to NRC recommendations for starter (0-21 days) and grower (22-42 days) periods. The basal diet was also supplemented with garlic powder, black cumin seeds powder and wild mint powder, resulting 4 dietary treatments were prepared including control group. Each dietary treatment was fed ad-libitum to 4 replicates group of 20 birds at the bigining of rearing period. There were no significant differences in feed consumption at all of treatments in rearing period (p>0.05). The birds fed the diet containing black cumin seeds powder had the highest body weight gain as compared with other treatments (p<0.05). The best Feed Conversion Ratios (FCR) was recorded with birds fed diets contained black cumin seeds powder compared with control and other groups through all growing periods (p>0.05). The lowest (p<0.05) abdominal fat percent were recorded for broilers fed the diets supplemented with garlic powder and black cumin seeds powder (p<0.05). Also, the highest carcass percent were recorded for birds fed diets supplemented with black cumin seeds powder and garlic powder (p<0.05). The percent of breast in birds received black cumin seeds powder significantly was higher than wild mint and control groups (p<0.05). The percent of thigh was not affected with feed treatments (p>0.05).
  E. Rahmatnejad , M. Bojarpour , KH. Mirzadeh , M. Chaji and T. Mohammadabadi
  This study was designed to evaluate the effect of Dried Tomato Pomace (DTP) on hematological indices of broiler chickens. Based a randomized completely design, 160 days old Ross 308 broilers were distributed into 16 floor pens and reared for 42 days. A basal diet was formulated according to NRC recommendations for starter (0-21 days) and grower (22-42 days) periods. The basal diet was also supplemented with 8, 16 and 24% dried tomato pomace, resulting 4 dietary treatments were prepared including control group. Each dietary treatment was fed ad-libitum to 4 replicates group of 10 birds at the beginning of rearing period. Inclusion of 24% DTP into the diet significantly decreased concentration of total protein, cholesterol and Low Density Lipoprotein (LDL) in serum (p<0.05). The highest High Density Lipoprotein (HDL) were recorded for birds fed diets supplemented with 16 and 24% DTP (p<0.05).
  H. Roshanfekr , M. Mamouei , K. Mohammadi and E. Rahmatnejad
  In this study, the data of Birth Weight (BW), Weaning Weight (WW) and Daily Gain from birth to weaning (DG) of Arabi lambs were used to estimate of environmental effects, heritability, phenotypic and genetic correlations among these traits. The effect of age of dam on BW was highly significant (p<0.01). The BW of lambs born to 2-year-old ewes in comparison to other lambs born to 3-6 year-old was significantly lighter. The male lambs as compared to the female ones had a heavier BW, WW and DG significantly (p<0.01). A comparison between born single (4.12, 26.21 and 0.252 kg, respectively) and twin lambs (3.55, 23.88 and 0.201 kg, respectively) indicated that the BW, WW and DG of born single lambs were significantly higher (p<0.01). Lambing year had a highly significant effect on the pre-weaning traits (p<0.01). Heritability of BW, WW and DG were 0.121±0.073, 0.095±0.072 and 0.096±0.079, respectively. Phenotypic and genetic correlations between BW-WW, BW-DG and WW-DG were (0.229 and 0.489), (0.119 and 0.429) and (0.987 and 0.999), respectively.
  H. Roshanfekr , M. Mamouei , K. Mohammadi and E. Rahmatnejad
  In this study, the data of Birth Weight (BW), Weaning Weight (WW) and Average Daily Gain from birth to weaning (ADG) of Arabi lambs were used to estimate of environmental effects, heritability, phenotypic and genetic correlations among these traits. The parameters were estimated using derivative free restricted maximum likelihood methods by excluding or including maternal genetic or maternal permanent environmental effects to optimize the model for each trait. Influencing factors such as type of birth, year of birth, lamb’s sex and age of dam were investigated as the fixed effects for models. The results showed that year of birth, type of birth, lamb’s sex and age of dam were highly significant sources of variation on mentioned traits (p<0.001). On the basis of log likelihood ratio test results, model 1 which included direct genetic effects only was determined to be the most appropriate model for above traits. Direct genetic heritability of BW, WW and DG were 0.12±0.07, 0.10±0.07 and 0.10±0.08, respectively. Phenotypic and genetic correlations between BW-WW, BW-ADG and WW-ADG were 0.23 and 0.49, 0.12 and 0.43 and 0.67 and 0.89, respectively.
  E. Rahmatnejad , M. Bojarpour , M. Islami , J. Fayazi and M. Mamouei
  This experiment was conducted to study economic value of Dried Tomato Pomace (DTP) in broiler chickens diets in the form of completely randomized design. For this purpose, 160 days old Ross 308 broilers were distributed into 16 floor pens and reared for 42 days. A basal diet was formulated according to NRC recommendations for starter (0-21 days) and grower (22-42 days) periods. Then, the basal diet was also, supplemented with 8, 16 and 24% DTP, resulting 4 dietary treatments were prepared including control group. The results showed that feed conversion ratio between treatments containing 8 and 16% of DTP compared to control group had no significant difference (p>0.05), but the highest (worst) feed conversion ratio were recorded for birds fed diets supplemented with 24% DTP (p<0.05). Comparison of the cost for 1 kg meat showed that the use of DTP up to 16% in diet reduce production cost.
 
 
 
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