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Articles by M.R. Hasan
Total Records ( 2 ) for M.R. Hasan
  A-Al Mamun , M.Z. Islam , J. Islam , M.N. Haque , J. Raihan , M.S. Ali , M.R. Hasan , S.S. Jahan and M.S. Islam
  Objective: The present study aimed to investigate the effects of useful bacteria isolated from sweet and sour yogurt on the overall performance of antibiotic-free commercial broiler production. Materials and Methods: A total of 128 mixed-sex broiler chicks were randomly divided into 4 groups with 4 replicates where T1, T2 and T3 was treated with a bacterial solution (5 mL L1) isolated from sweet yogurt, sour yogurt and their combination, respectively and T4 was considered as the control. The experiment was conducted for 34 days and the supplements were added to the drinking water. The data were statistically analyzed using a Completely Randomized Design (CRD). Results: A non-significant effect of yogurt supplementation on feed intake was observed in this study. Yogurt supplementation significantly increased (p<0.05) body weight gain. A highly significant (p<0.01) improvement in body weight gain was recorded for T2. The yogurt supplementation significantly (p<0.01) improved the FCR. The dressing weight was significantly (p<0.05) increased by the supplementation. The difference in survivability among the treatments was non-significant. Further, the highest profit was obtained from T2 (27.17 Tk kg1), followed by T3 (22.31 Tk kg1) and T1 (21.00 Tk kg1). In contrast, the lowest profit was recorded for the T4 (17.08 Tk kg1). Conclusion: The present study showed promising effects of yogurt supplementation on commercial broiler production without antibiotics, especially sour yogurt, which significantly improved the production performance and net profit. Therefore, it is suggested that sour yogurt could be a safe alternative to antibiotics for commercial broiler production.
  M.R. Hasan , M.G. Mostaf , Nafiur Rahman , Md. Saiful Islam and Md. Moynul Islam
  Background and Objective: Groundwater is one of the most important renewable resources which play a great role into livelihood, economies and agriculture sector in a nation. However, this valuable resource has been defected through various ways. This study aimed to investigate the effect of over exploitation of groundwater on Barind Tract area and its probable impact on the environment. The effect of groundwater fluctuation due to deep tubewells installed in the study area for irrigation has also been investigated. The study area was Chapai Nawabganj district in Barind Tract area which is located in North-western part of Bangladesh. Materials and Methods: The study area consisted of five upazilas namely Nawabganj, Shibganj, Nachole, Gomastapur and Bholahat. Results: The experimental data were analyzed and the result revealed that the minimum water level depletion recorded was about 6.33 m below the surface at Shibgonj Upazila in 2008 and maximum water level depletion recorded was about 109.40 m below the surface at Nachol upazila in 2014. A 10-year rainfall data of the said district showed that the maximum annual rainfall recorded was 2029 mm in 2007 and since then rainfall was gradually decreased. The highest annual rainfall received in the area was 1793 mm in 2007 and the lowest was 1025 mm in 2010 in the district. The average rainfall received in Chapai Nawabganj district was 1372 mm during 2007-2016. A good trend of water table fluctuations of Chapai Nawabganj district was found during 2007-2016. Conclusion: From the analysis results, a good relation between rainfall and water table fluctuations can be observed where the groundwater table was possibly recharged through the rainfall. The overall yearly water table declining trend indicates that the unsustainable withdrawal of groundwater for irrigation purposes played a vital role in groundwater table depletion in the study area. Moreover, groundwater level fluctuation depended on the extraction and recharge of the area.
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