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Articles by A. Ahad
Total Records ( 5 ) for A. Ahad
  M.S. Islam , N.S. Lucky , M.R. Islam , A. Ahad , B.R. Das , M.M. Rahman and M.S.I. Siddiui
  An experiment was conducted to study the hematological parameters in Fayoumi, Assil and Local Chickens of different ages reared in Sylhet region. 250 chickens of three breeds (100 Fayoumi, 50 Assil and 100 Local) were tested at different ages (1, 3, 6, 9 and 12 months) to observe the hematological parameters: i) Total erythrocyte Count (TEC) ii) Packed Cell Volume (PCV) iii) Determination of Hemoglobin (Hb) iv) Erythrocyte Sedimentation Rate (ESR) v) Differential Leukocyte Count (DLC) vi) Mean Corpuscular Volume (MCV) vii) Mean Corpuscular Hemoglobin (MCH) viii) Mean Corpuscular Hemoglobin Concentration (MCHC). Erythrocyte numbers, hemoglobin concentration and packed cell volume increased with the advancement of age in all three breeds. The TEC was higher in Fayoumi. The hemoglobin concentration was high in Assil. The PCV was slightly different or similar in all three breeds. ESR was inversely related to the age. Higher ESR in early age and lower in the advancement of age. The Fayoumi showed the higher ESR compared to other two breeds. The ESR of last two groups (9 and 12 months) of Assil and all groups of Local Chickens were negligible. Lymphocytes and heterophils were two principal leukocytes, which exert their dominance on other leukocytes. Among three breeds Local chickens possess the higher lymphocyte percentage. The heterophils were higher in Fayoumi breed. Monocyte was lower in Assil and Local chickens. Eosinophils were higher in number in local and Assil compared to Fayoumi. Higher MCV was recorded in Local chickens followed by Assil and Fayoumi chickens. MCH values were near about similar in Assil and local chicken but lower in Fayoumi breeds. The MCHC values of all three breeds were almost nearer to each other. The above study has highlighted some of the normal hematological parameters of chicken mostly reared in Sylhet region. However, more detailed study could be conducted in this regards.
  Kh.N. Islam , M.Z. I. Khan , M.N. Islam , A. Ahad and M.S. Mazumder
  The light microscopic structure of the ureter of RIR and WLH chicken of Bangladesh has been analyzed as histologically in the present study. Based on the histological architecture, the ureteral wall were clearly identified into three layers; mucosa, muscularis and adventitia. The lumen was roughly circular in cross section in both types of genetic groups. The histological features of the mucosa, muscularis and adventitia were remained same in different developmental stages. The epithelial wall of the ureter consists of a tall pseudo-stratified columnar epithelium in the cranial part through the middle part of the ureter which were transformed into transitional epithelium in the caudal part of the ureter in both Rhode Island Red (RIR) and White Leghorn (WLH) chicken. The presence of collagen and elastic fibers were observed in the lamina propria of the ureter. However, the population of lymphatic tissue in the lamina propria was greater in RIR rather than WLH chicken. The mucosal folds were very clear and more in RIR than WLH chicken. These differences did not depend on the developmental stages but depend on the genetic variation of the chicken
  A. Ahad , M. Latif Mirza , Matiullah and S.D. Orfi
  The measured mean activities of 226Ra, 232Th, 40K and 137Cs in the soil of Bahawalpur, Bahawalnagar and Rahimyar Khan Districts were 32.9, 53.6, 647.4 and 1.8 Bq kg-1. The average absorbed dose rate calculated from these activities was 62.1n Gy h-1 and the annual equivalent dose rate was found to be 0.5 m Sv y-1. Effective doses to different body organs were derived from annual equivalent doses with the help of tissue weighting factors. Fatal cancer risks were assessed by using ICRP 60 Model. Estimations incurred 309 deaths per year due to cancer.
  A. Begum , A. Ahad , M.O. Kaisar , M.M. Islam and M.K. Anam
  The experiment was conducted to find out morphological and reproductive variability in response to different sowing dates and fertilizer treatments with two varieties of French bean under the agroclimatic conditions of Mymensingh, Bangladesh. The highest fertilizer treatment (90:50:120) produced the highest pod and seed yield per hectare. Fertilizer treatments had significantly different effects on pod length, number of seeds per pod, fresh pod weight per plant, dry seed weight per plant, pod yield and seed yield. The varieties differed significantly in respect to seed yield only. Yellow variety gave the highest seed yield per hectare. The January sowing gave the highest pod and seed yield. Seed sown in February failed to produce any fruit. The interaction of sowing dates and varieties had no significant effects on the above characters. The best morphological and reproductive characters performance were observed in January sowing and highest fertilizer treatments combination.
  A. Begum , A. Ahad , M.O. Kaisar , M.M. Islam and M.K. Anam
  The experiment was conducted to find out morphological and reproductive variability in response to different sowing time and fertilizer treatments with two varieties of French bean under the agroclimatic conditions of Mymensingh, Bangladesh. Fertilizer treatments had significantly different effects on plant height, leaf number, leaf length and breath, days required for maximum flowering, number of flowers per plant and number of pods per plant. The interaction of sowing dates and varieties, had significant effects on the above characters except plant height. The best morphological and reproductive attributes performance were observed in January sowing and highest fertilizer treatments combination.
 
 
 
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