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Articles by K. Nazeradl
Total Records ( 5 ) for K. Nazeradl
  R. Salamatdoustnobar , K. Nazeradl , H. Aghdamshahriyar , A. Ghorbani and P. Fouladi
  To assess the effect of supplying Canola Oil (CO) and Choline Chloride Supplement (CCS) in the diet on Fatty Acid (FA) composition and omega 6 to omega 3 ratio in broiler breast and thigh meat, diets enriched with 0, 2, or 4% CO plus CCS (0 , 500 and 1000 ppm). These diets were isonitrogenous and isoenergetic were given to broiler chickens throughout a 42-d growth period. This trial was conducted in 33 factorial experiment. Birds were slaughtered at 56 d of age. After weighing the eviscerated carcass was apportioned into commercial cuts (back, two leg-thigh, two wings and breast). Breast and thigh meat samples were separated and frozen at -20 C until to determine as fatty acid profile. Data was analyzed with one way ANOVA and means compared with Duncan test. Interaction effects of CO and CCS was significant (p< 0.0001). Results show that using CO with high level of omega 3 fatty acids could influence fatty acid profile and improved meat quality. Means of fatty acids percent for meat samples and 6/ 3 fatty acids ratio was decrease and quality of fatty acid composition improved with increase CO and CCS levels. For thigh meat samples this ratio was descend from 11.73% for T1(0% CO and 0 ppm CCS) to 3.72 for T9(4 % Co and 1000 md kg 1 CCS) and in breast meat samples 9.01 and 3.55%, respectively.
  R. Salamat Doust Nobar , K. Nazeradl , A. Gorbani , H. Aghdamshahriar and J. Gheyasi
  One of the most famous omega 3 fatty acids source is canola oil. The aim of this study was to evaluate the effects on omega 3 fatty acids include of Docosahexaenoic (DHA) and Eicosapentaenoic (EPA) content when Canola Oil (CO) was included in broiler chicks rations. Ninety one day old male broiler chicks (Ross- 308) were randomly distributed into 3 treatment: Control (0% CO), 2% CO and 4% CO for 5 week. These diets were isonitrogenous and isoenergetic were given to broiler chickens throughout a 42 days growth period. Eicosapentaenoic and docosahexaenoic acids and other fatty acids were analyzed by gas chromatography. This trial was conducted in completely randomized design. Birds were slaughtered at 56 days of age. Breast and thigh meat samples were separated and frozen at -20C until to determine as fatty acid profile. Data was analyzed with one way ANOVA and means compared with Duncan test. Results show that using CO with high level of omega 3 fatty acids could influence fatty acid profile and improved meat quality. With increasing dietary canola oil level in diet (from 0-4 g kg 1 diet) omega 3 contents that were significantly (p< 0.05) increased in thigh and breast meat. N-3 fatty acids, DHA and EPA content were significant among treatment (p< 0.05).
  R. Salamat Doust Nobar , K. Nazeradl , A. Gorbani , H. Aghdam Shahriar and P. Fouladi
  This experiment was conducted to determine the effect of dietary Canola oil (unsaturated oil) of on breast and thigh meat Saturated Fatty Acids (SFA) percentage. A total of 90 Ross 308 strain were randomly divided into 3 experimental treatments with 3 replicates (10 chicks per pen) and arranged in a completely randomized design. The experimental period lasted 6 weeks and during this period, the birds had free access to feed and water. Experimental diets consisted of: Basal diet with 0% canola oil; basal diet with 2% canola oil and basal diet with 3% canola oil. These diets were isonitrogenous and isoenergetic were given to broiler chickens throughout a 42-d growth period. Meat fatty acids profiles with Gas Chromatography (GC) technique were measured. Data was analyzed with one way ANOVA and means compared with Duncan test. According to results Saturated Fatty Acids (SFA) for breast meat is significant (p< 0.05) and from 37.37% reached to 35.94 and 31.76% for T2 and T3, respectively and for thigh meat not significantly difference but numerically decrease and from 36.65% for T1 (0% CO) reached to 33.94 and 34.73%, respectively for T2 and T3.
  Y. Ebrahim Nezhad , M. Shivazad , R. Taherkhani and K. Nazeradl
  A synergistic effect between Citric Acid (CA) and Microbial Phytase (MP) in improving phytate Phosphorus (P) utilization have been reported in broiler previously. In order to evaluate such additive effect in laying hen, an experiment was conducted using 224 Hyline-W 36 laying hen. Experiment began at 53 w of age and lasted in 64 w of age. The experiment was carried out using a completely randomized design with factorial arrangement (0 and 300 IU MP and 0, 20 and 40 g citric acid per kg of diet). Four replicate of 8 hens per each were fed dietary treatments including 1) Positive Control diet (PC) which meet NRC recommended available P level (0.3% available P), 2) Negative Control diet (NC) that was similar to PC diet except that available P was reduced by 0.2 %, 3) NC+300 IU microbial phytase per kg of diet, 4) NC+20 g CA per kg of diet, 5) NC+20 g CA+300 IU microbial Phytase per kg of diet, 6) NC+40 g CA per kg of diet, 7) NC+40 g CA+300 IU microbial Phytase per kg of diet. Dietary supplementation of MP to low available P diets significantly improved egg production and restored it to the level similar to PC group, but CA supplemented diets failed to create such effects. NC and diets with only CA supplementation had significantly lower feed intake compared to PC and MP supplemented diets. MP supplemented diets were used as efficiently as the PC diet, but CA had any effects on feed efficiency. Results obtained in our study suggests that contrary to the effects of CA in broiler chicks, CA couldn=t enhance phytase effectiveness in laying hen, probably due to high levels of Ca in laying hens diets.
  Y. Ebrahimnezhad , R. Hajihosseini , K. Nazeradl , N. Maheri-Sis and J. Ghiasi Ghalehkandi
  This experiment was conducted to evaluate the effects of mineral premix removal from diet during different period (starter, 1-21 d; grower, 22-42 d and finisher, 43-49 d) on the performance of broilers. From the days of old, chicks a diet containing two levels of supplementary minerals premix (0 and 0.25%) received. The results showed that, between experimental groups in terms of feed intake during various periods were not differences. In the starter and grower periods weight gain among all treatments were not significantly, but during finisher period of experimental weight gain of remove mineral premix of starter and grower periods and remove mineral premix of all rearing periods treatments were significantly lower than other treatments (p<0.01). Remove mineral premix during starter and grower periods significantly increased feed conversion ratio among treatments (p<0.05) and in the finisher period was significant (p<0.01). Remove mineral premix during different growth on carcass, abdominal fat, liver, breast, leg and tibia bone ash were not significant. Removal mineral premix on leg bone density (p<0.05) and bone strength (p<0.01) were different.
 
 
 
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