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Articles by Amin Haghigat
Total Records ( 2 ) for Amin Haghigat
  Adel Feizi , Amin Haghigat and Jafar Taifebagerlu
  Gout is a common metabolic disorder that results in abnormal accumulation of urates in domestic birds. The aim of present study was to assessment of clinical and necropsy manifestation, losses and some biochemical factors in broiler breeder with gout syndrome. In present study, two affected and non-affected broiler breeder farms to gout syndrome were selected. The losses rate by focus on necropsy signs were recorded also blood sampling to determination of biochemical factors such as uric acid, creatinine, albumin, total protein, calcium, phosphorus and sodium and potassium was done. Also, the percentage of egg production during a period of 25-64 weeks in both farms were recorded and compared. Blood samples were obtained from wing vein separation of their serum by centrifuging in 3000 rpm for 15 min then the samples freezed in -19°C. Data examined and analyzed by SPSS Statistical Software, Version 17 with t-test in significant level of α = 0.05 and confidence level of 95%. Data showed that there is a significant differences between measured parameters in two farms p<0.001.
  Adel Feizil , Mortaza Shahbazi , Jafar Taifebagerlu and Amin Haghigat
  For many years, researchers have been investigating the effect of high environmental temperature on the performance of different poultry species including turkeys, young chickens, broilers, broiler breeders and laying hens and have found that high environmental temperatures have deleterious effects on productive performance. The objective of this study was to assessment of effect of heat stress on production of Hy-line layers. A total of 200 Hy-line hens were selected for this study and divided into the 2 identical groups. Group 1 was kept in the environment at temperature 32-36°C and other one was kept in 27°C. Data showed that there is a significant difference among two groups in point of production rate (p<0.01 ). It can be concluded that heat stress has a marked effect on chickens especially layers as shown in present study and must kept in temperature range of 27°C to obtain maximum production rate.
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