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Articles by H. Janmohammadi
Total Records ( 3 ) for H. Janmohammadi
  H. Nassiri Moghaddam , H. Janmohammadi and H. Jahanian Najafabadi
  This study was conducted to evaluate the effect of increasing dietary electrolyte balance [DEB; Na + K - Cl, miliequivalents (mEq) Kg-1 on growth performance, tibia ash and Ca, Na, K and Cl contents of blood serum in young pullets. A corn-soybean meal based mash diet containing 187 mEq Kg-1 (Na + K - Cl) was formulated to supply the nutrient requirements of young pullets. DEB of basal diet was increased as much as 43, 64 and 97 mEq Kg-1 by substitution of sodium bicarbonate, potassium bicarbonate or both of them in part of corn and four experimental diets containing 187, 230, 251 and 284 mEq Kg-1 (Na + K - Cl) were obtained. Young pullets (n=160) were used from 7 to 35 d of age, in a completely randomized design with four dietary treatments having four replicate cages (10 pullets) each to evaluate different levels of DEB. Weekly feed intake, body weight gain and feed conversion ratio were not significantly affected by dietary treatments. The same results were obtained in growth period of 7 to 35 days. Tibia ash and its calcium content varied between 46.5 to 48.9 and 34.4 to 37.9 percent, respectively and were not significantly affected by different levels of DEB. Among blood serum electrolytes, only K and Cl were significantly affected by DEB (P< 0.01). Diet containing 251 mEq Kg-1 (Na + K - Cl) had the lowest value of blood serum K concentration and concentration of blood serum Cl increased with increasing of DEB.
  H. Ilghami , A. Taghizadeh , H. Janmohammadi and J. Shoja
  Three plant and animal derived protein sources including Fish Meal (FM), Poultry By-products (PBM) and Whole Cottonseed (WCS) were evaluated with in situ technique. The using incubation times were 0, 4, 8, 12, 16, 24 and 48 h. There were significant differences between protein sources in terms of DM and CP disappearances. Effective degradabilities of Dry Matter (DM) and Crude Protein (CP) of WCS at 3 outflow rates were significantly higher than those of the other protein sources. Animal-derived protein sources such as PBM and FM had significantly lower effective DM and CP degradability values than those of plant-derived protein sources such as WCS. Therefore, animal-derived protein sources with a low degradability can be used to increase the bypass protein. The CP degradation parameters obtained in this experiment using sheep would be very useful in improving the accuracy of formulation of sheep diets.
  Z. Rajabi , H. Tayefi-Nasrabadi , A.B. Syofi and H. Janmohammadi
  The use of vaccination in poultry to control AI viruses, especially Mildly Pathogenic Avian Influenza (MPAI) viruses has been increasing in recent years. The amount of antigen mass and hemagglutination activity of Oil-Emulsion (OE) vaccines is important for the control of Avian Influenza (AI) viruses. With extraction of antigen mass of an AI OE-vaccine and determination of Hemagglutination (HA) titers and total protein; it is possible to predict the quality and protective efficacy of the vaccine. In this study, antigen mass was recovered from three commercially available AI OE-vaccines by aqueous partition method, then, the amount of extracted total protein and recovered HA activity were compared with the serologic responses caused in chickens by each vaccine. The results showed that the aqueous partition method retrieves antigen mass from the inactivated AI subgroup H9N2 OE-vaccines and also indicated that in three examined vaccines there is a good correlation among recovered HA activity, extracted total protein and antibody response in each vaccine. This study also showed that Determination of both recovered HA activity and extracted total protein let us know more about the efficacy of an OE-vaccine.
 
 
 
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