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Articles by S. Hassani
Total Records ( 8 ) for S. Hassani
  M. Safaei , F. Boldaji , B. Dastar , S. Hassani , M.S.A. Mutalib and R. Rezaei
  The experiment was conducted to assess the effects of adding silicate minerals in dietary of broiler chickens on the broiler thigh meat moisture, ash, crude protein, intramuscular fat and abdominal fat. This study was accomplished in a completely randomized design with total four hundred forty eight 1 day old broilers. Chickens were randomly assigned to 7 dietary treatments (control and 15, 30 g kg-1 kaolin, bentonite and zeolite) with four replicates per treatment and sixteen birds per replicate. Intramuscular fat and abdominal fat were lower in treatments with 15 g kg-1 bentonite and kaolin compared with control treatment (p<0.05). The ash content of meat in treatment containing 30 g kg-1 zeolite was significantly (p<0.05) higher compared to treatment containing 15 g kg-1 bentonite and control. Meat moisture and protein content did not differ significantly (p>0.05) between experimental treatments. It may be concluded that inclusion of kaolin, bentonite and zeolite as feed additive in broiler diet have positive influence on chemical composition of meat.
  M. Khanavi , H. Azimi , S. Ghiasi , S. Hassani , R. Rahimi , S. Nikfar , Y. Ajani , M.R. Shams-Ardekani and M. Abdollahi
  In the present study, cAMP and cGMP phosphodiesterase inhibitory (PDEI) activities of the ethanolic extracts of nineteen plants of Traditional Iranian Medicine (TIM) with aphrodisiac effects were investigated. The plants were extracted in a similar way and then three concentrations (0. 1, 1, 5 mg mL-1) from each were tested for PDEI activity against control and sildenafil. Among plants tested, 8 including Allium cepa, Trigonella foenum-graecum, Brassica rapa, Alpinia officinarum, Tribulus terrestris, Urtica pilulifera, Linum usitatissimum and Zingiber zerumbet exhibited a significant dose-dependent cAMP-PDEI activity and 6 including A. cepa, A. officinarum, T. terrestris, L. usitatissimum, Withania somnifera and Z. zerumbet gave a remarkable dose-dependent cGMP-PDEI effects in comparison to control. Among tested herbs, Zingiber officinalis and Peganum harmala at dose of 5 mg mL-1 demonstrated better cGMP-PDEI in comparison to sildenafil. The results of this study give idea for discovery of safe and better drugs in management of erectile dysfunction.
  M. Azadegan Mehr , M. Shams Shargh , B. Dastar , S. Hassani and M.R. Akbari
  A feeding trail was conducted to evaluate the effects of different levels of dietary protein and protexin (a commercial probiotic compound) on broiler performance. In a completely randomized design with 2 x 3 factorial arrangement, 360 male broiler chicks were divided into 24 groups, 15 chicks per. Treatments consisted of combination of two levels of protein (NRC and 90% of NRC) and three levels of protexin (without protexin, the recommended level and 120% of recommended level). All of the diets were formulated according to the NRC tables except for protein. Protexin significantly (P<0.05) increased weight gain in growing as well as the whole production period. Feeding protexin at 120% of the recommended level caused a significant improvement in feed conversion ratio compared to the control group. Protexin had no significant effect on feed consumption, carcass percentage, abdominal fat and the cost of consumed feed. Decreasing dietary protein caused a significant decrease in feed cost (P<0.05). Inclusion of protexin into diet at 120% of the recommended level significantly (P<0.05) decreased feed cost per kilogram of live weight gain.
  A. Toghdory , T. Ghoorchi , A. Naserian , Y.J. Ahangari and S. Hassani
  Eight multiparous Holstein cows with an average milk production of 34.6±2.8 kg day-1 and body weight of 676±79 kg were used to evaluate the effect of rumen protected and unprotected choline on energy-related biochemical metabolites of lactating dairy cows. The experimental design was a balanced change over design with 4 treatments and 4 periods of 21 days. Experimental treatments were: No Choline (NC), Unprotected Choline (UC) fed at 50 g day-1, Rumen Protected Choline (RPC 25) fed at 25 g day-1 and Rumen Protected Choline (RPC 50) fed at 50 g day-1. Rumen protected choline was blended with 0.25 kg of ground corn and fed once per day as a top dress. Blood samples from coccygeal vessels were collected on last day of each period and analyzed for glucose, triglyceride, cholesterol, blood urea nitrogen, very low density lipoprotein, low density lipoprotein and high density lipoprotein. The result shows that blood metabolites such as glucose, triglyceride, cholesterol, blood urea nitrogen, very low density lipoprotein and low density lipoprotein not affected by treatments (p>0.05). Blood glucose concentration tendency increased by rumen protected and unprotected choline, but wasn’t statistically significant. Unprotected choline decreased concentration of high density lipoprotein than control group (p<0.05). Rumen protected choline had no significant effect on high density lipoprotein levels. High density lipoprotein decreased by using unprotected choline, but other blood metabolites not changed by treatments.
  M. Safaei Katouli , F. Boldaji , B. Dastar and S. Hassani
  An experiment was conducted to study the effects of different levels of kaolin, bentonite and zeolite on broiler performance in 6 weeks. Four hundred and forty eight day-old broilers of male Ross 308 strain were allocated to 7 treatments with four replications and 16 broilers in each. The experiment was carried out in a completely randomized design. Treatments were control and 1.5, 3% of kaolin, bentonite and zeolite. Treatments with 3% zeolite and bentonite was significantly (p<0.05) increased weight gain during the 1st and 6th weeks, 1.5% kaolin and zeolite, significantly (p<0.05) increased weight gain in 5th and 6th weeks compared to the control, respectively. Treatments 1.5% bentonite in 4th and 5th weeks and 1.5% zeolite and 3% bentonite in 5th week was significantly (p<0.05) increased feed intake compared to the control. Feed conversion ratio in diets with 3% kaolin in the 1st and 2nd weeks and 3% zeolite in the 1st week was significantly (p<0.05) improved compared to the control. There was no significant (p>0.05) differences in internal organs and fecal pH between trial groups and control. Fecal moisture in treatments with 1.5% kaolin, 3% bentonite and zeolite was significantly (p<0.05) different from control. Growth rate in treats containing 3% kaolin at 0-3 week and 1.5% zeolite, 1.5% kaolin and 3% kaolin, bentonite and zeolite at 0-6 week was more than control (p<0.05). The results demonstrated that adding silicate minerals in diet, improve performance of broiler chickens.
  A. Shabani , B. Dastar , M. Khomeiri , B. Shabanpour and S. Hassani
  This experiment was conducted to evaluate the efficiency of nanozeolite against aflatoxicosis in broiler chickens. For this purpose, 336 male Ross 308 day old broiler chickens were allocated to 6 dietary treatments, including a control corn-soybean meal diet without Aflatoxin (AF) and Nanozeolite (NZ) and five diets contaminated with 500 ppb AF and containing 1 of 5 levels of zero, 0.25, 0.5, 0.75 and 1% Nanozeolite (AFNZ0, AFNZ0.25, AFNZ0.5, AFNZ0.75 and AFNZ1, respectively). Data were analyzed as a completely randomized design with 4 replications and 14 birds per repetition. The results showed that the lowest weight gain and feed intake and the highest feed conversion ratio were related to diet containing 500 ppb AF without NZ (AFNZ0 diet). The birds were fed AFNZ0 showed lower weight gain in 2nd, 3rd and 4th weeks in comparison with control diet (p<0.05). AF led to reduce feed intake and increase feed conversion ratio in 3rd week (p<0.05). No significant differences observed between control diet and contaminated diets containing different levels of NZ for body weight gain, feed intake and feed conversion ratio at all weeks. Serum total protein, cholesterol and triglyceride concentrations were significantly lower in AFNZ0 compared to control diet (p<0.05). There was no significant difference between dietary treatments for serum albumin. These findings confirm that at least 0.25% NZ is sufficient to reduce the toxicity of AF in broiler chickens.
  S. Zerehdaran , S. Hassani , A.M. Gharebash , A. Khanahmadi and F. Farivar
  To illustrate the consequences of including health related traits in a sustainable broiler breeding program, two scenarios were simulated using the SelAction program. In the first scenario (economic), selection was only for production traits and Gait Score (GS) and Heart Failure (HF) were ignored in the breeding goal. In the second scenario (sustainable), GS and HF as well as production traits were included in the breeding goal. Economic values of GS and HF were determined using desired-gain approach to obtain a zero response in GS and HF. The results indicate that, despite improved responses for production traits in the economic scenario, there was an unfavorable reduction in GS of about 0.13 points and an unfavorable increase in HF of about 0.025 points. In the sustainable scenario, the deterioration of GS and HF was stopped. In the economic scenario with zero economic values for GS and HF, the total monetary response was higher (0.104 _) than sustainable scenario (0.097 _). Due to negative correlations between health and production traits, increased emphasis on health traits in the sustainable scenario resulted in a reduction in the total monetary response. In conclusion to stop the increased incidence of diseases, health traits should be included in the breeding goal and assigned appropriate values.
  M. Mehdipour , M. Shams Shargh , B. Dastar and S. Hassani
  This experiment was conducted to evaluate the effects of different levels of Hatchery Wastes (HW) on performance, tibia ash, blood calcium and phosphorus concentrations in broiler chickens. Birds were fed a corn-soybean meal diet for 7 days. The experimental treatments included a corn soybean meal diet and 3 other treatments containing 1.5, 3.0 and 4.5% HW. five replicate groups of 15 Ross 308 broiler chicks were allocated to each dietary treatment. Data were analyzed in a completely randomized design. Results indicated that there were no significant differences in weight gains among different dietary treatments. Feed intake in the 4.5% treatment was significantly higher (p<0.05) and 3% treatment had lower feed intake than the other treatments. The results indicated that feed conversion in the 3% HW treatment was lower in most of the period (p>0.05). Results of carcass analysis showed no significant differences between treatments. Also, there were no significant differences between blood calcium and phosphorous among treatments. The 4.5 and 3.0% hatchery wastes treatments had the highest tibia ash (p<0.05). Based on the result of this experiment, the utilization of hatchery wastes as much as 3% can increase tibia strength without having adverse effect on broilers performance.
 
 
 
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