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Articles by M.S. Rahman
Total Records ( 14 ) for M.S. Rahman
  Mst. Nahida Laiju , G. Kabir , M.J. Islam , , M. Hasanuzzaman and M.S. Rahman
  The present study was conducted for karyomorphological investigation in 15 lines of two species of Hordeum. All the lines showed a diploid chromosome number of 14. Differences were observed regarding chromosome length, total chromatin length (TCL), type etc. among the 15 entries. The longest (11.06 μm) chromosomes were observed in BTON-10 while the shortest (4.23 μm) in BEL-4 and BEL-36 of Hordeum vulgare. Extra large chromosomes were found in BEL-4 (1 pair) and BTON-10 (5 pairs) of H. vulgare. Large type chromosomes were found in BHV-105, BTON-10 and conquest of H. vulgare. Medium type and relatively short type chromosomes were absent in BEL-36, BHV-1 and BTON-10 of H. vulgare, respectively. More metacentric chromosomes (7 pairs) were found in BHV-1 of H. vulgare. Maximum chromatin length (70.21 μm) was also found in BTON-10 and minimum (40.96 μm) in BEL-36 of H. vulgare. Maximum (47.76%) and minimum (39.88%) total fractional percentage (TF %) were found in BHV-1 and API-19 of H. vulgare, respectively. Each line has a specific chromosomal morphology which might be responsible for the variations of Hordeum species.
  F. Ahmed , M.S. Rahman , S.U. Ahmed and M.Y. Miah
  An investigation was made on the performance of 144 unsexed Van Cobb broiler chicks from 21 days to 42 days of age. The chicks were fed on soybean meal (SM) based iso-nitrogenous and iso-energetic diet incorporating phytase with the levels of 0.0, 0.50, 1.00 and 1.50 g/kg diet for better utilization of the basal diet. The growth rate, feed intake, feed consumption, dressing yield and profitability increased as the level of phytase supplementation increased and the level of phytase had no effect on survivability. The addition of phytase seemed to be effective to overcome the antinutritive effect of phytate phosphorus and non-starch polysaccharides (NSP) on broiler performance. Therefore, it was concluded that 1.50 g/kg phytase may be incorporated in SM based broiler diet for profitable production.
  M.Y. Miah , M.S. Rahman , M.K. Islam and M.M. Monir
  A factorial bioassay was made to evaluate 4 different levels of exogenous saponin (S); 0 mg (So), 25 mg (S1), 50 mg (S2) and 75 mg (S3) per kg and also a combination (SC) of 50 mg saponin plus 50 mg L-carnitine (S4) per kg maize-soybean meal based basal diet during the late autumn. In all, 5 experimental diets being iso-nutritive (as per NRC, 1994 recommendation) but for variable in presence and contents of saponin and L-carnitine were prepared. 8-day old male broiler chicks (n=150, Starboro) were distributed randomly into 15 groups of 10 chicks in each housed in separate pen of littered floor. Three such groups received each of 5 test diets ad libitum as mash up to 8 weeks of age. The plenty of water was made available to all chicks during the experimental period. It was found that S2 diet significantly improved body weight gain (BWG) during growing (8 days to 3 weeks) period when compared with S0, S1, S3 and S4. Dietary S and SC had no significant (p>0.05) effect separately and jointly on feed efficiency, protein efficiency and performance index. But S3 and S4 diets reduced abdominal fat significantly (p<0.05), while only S3 significantly (p<0.05) increased tastes weight. S and SC added all diets significantly (p<0.05) reduced liver, gizzard and thyroid size with little enlargement of spleen size compared to S0 fed group. Finally, it was concluded that 75 mg (S3) per kg exogenous saponin could be used as feed additive in broiler diet to improve growth and carcass quality.
  M.S. Rahman and M.A.R. Howlider
  An investigation was conducted on 540 scavenging chickens of two age groups (below 6 month and above 6 month) taking equal number from each of 6 upzilas (sub-district) under 4 districts in 3 seasons (Summer, Winter and Rainy season). The birds were collected from farmer`s house between 4:0 and 5:0 pm. Collected birds were slaughtered and dissected to collect different parasites from suspected organs. Crop and gizzard contents (CGC) were collected for nutritional analyses. CGC was processed and analyzed for proximate components, calcium (Ca) and phosphorous (P). The CGC contained 2678 Kcal/kg DM TME, 11.72% CP, 0.41% Ca and 0.34% P. Seasonal variation had significant effect on TME availability but not on CP content. Seasons, areas and their interactions had significant effect on Ca availability. Availability of Ca and P to younger birds was fewer than that of to aged birds, but reverse result was found for TME. It was concluded that all scavenging birds were under deficient nutritional status.
  Bhupesh C. Roy , M.J. Kabir and M.S. Rahman
  Ternary phase equilibrium data for acetic acid with water and solvent (n-butyl alcohol, isobutyl alcohol and amyl alcohol) are presented and used to evaluate the possibility of employing distribution of acetic acid between water and these alcohols as a means of separation of acetic acid from its aqueous solution. Mutual solubility curves, tie-line data, distribution coefficient, selectivity diagrams and separation factor data were determined for these systems. From these data it has been concluded that of these solvents amyl alcohol offers the best hope of achieving separation of acetic acid by distribution between amyl alcohol and water as it has the highest separation factor value than those of other two alcohols.
  S.U. Ahmed , M.S. Rahman and M.S.A. Khan
  A study was undertaken to find out the effect of fertlization on the fatty acid profile of Artemia cysts (GSL strain, Utah, USA origin) produced from the modified traditional solar salt works of Bangladesh during winter months (January-March) through different fertilization treatments (T1,T2,T3). Application of fertilizer for T1 was 50 kg urea + 20 kg TSP/ha, T2 was 500 kg dried and powdered chicken manure/ha and T3 was 1000 kg dried and powdered chicken manure/ha with dress up weekly/bi-weekly fertilization in all the cases. Palmitic, Linolenic, Eicosapantaenonic and Docohexaenoic acids (mg/g.DW) were found highest for the cysts in T1 (16.0±1.36%), T2 (14.7±0.47%), T2 (4.7±0.40%) and T2 (0.7±0.06%) treatments, respectively. High amount of 18:3(n-3) acids in the cysts of all sources proves to be freshwater type of the cysts. The presence of marine type essential fatty acids in the cysts of all sources were found low for 20:5n-3 (3.7-4.7%) and very low for 22:6n-3 (0.09-0.7%). No significant variation was observed for 16:0 acids within the treatments, but for 18:3(n-3) acid, the variation was found highly significant (P= 0.0052) between T2 and T3. For 20:5(n-3), only variation between T2 and T3 was found insignificant (P=0.1161), but between other treatments, significant variation was observed between T2 and T3 (P=0.0241), T2 and T3 (P=0.0022) and T1 andT3 (P=0.0161).
  M. Ahmed , R. Parvin , M.S. Rahman , M.S.H. Molla and S.M.J. Hossan
  The effect of rice leaf cutting on the production of green fodder, hay and seed yield of BR10 rice was evaluated. Tallest plant, maximum number of non-effective tillers hill-1, longest panicle, maximum seed panicle-1 and highest seed yield were obtained from without leaf cutting when the crop was transplanted using two seedlings hill 1 with plant spacing 25 x 15 cm2. Whereas leaf cutting treatment having two seedlings hill 1 with spacing 25 x 15 cm2 produced the highest number of effective tillers hill-1. Spacing 25 x 10 cm2 also produced statistically identical seed yield ha 1 with no cutting treatment having two seedlings hill 1 with 25 x 15 cm2. The highest forage yield and dry matter yield of forage were observed from leaf cutting treatment of six seedlings hill 1 with spacing 25 x 10 cm2. The highest cumulative hay yield was found in cutting treatment, two seedlings hill 1 with spacing 25 x 20 cm2 which was statistically similar to six seedlings hill 1 with spacing 15 x 10 cm2. Average forage yield was 2.81 t ha-1. It is possible to harvest rice forage from transplant aman rice like BR10 without decreasing grain or seed yield and length of leaf cutting may be up to 10 cm at vegetative growth stage.
  M.A. Khan , M.M. Rashid , M.A. Siddique , M.R. Amin and M.S. Rahman
  The present study was carried out through the period of 1999-2000, to investigate the future prospects of orange cultivation in the Panchagarh region of Bangladesh. The study revealed that the Panchagarh district is endowed with favorable environmental conditions for the growth and development of sweet orange/ mandarin production.
  I.H. Tarafder , M.S. Rahman , A.K.M.M. Hossain , J.A. Syeda and M.M. Rahman
  An experiment was conducted in the Rabi seasons of 1999 and 2000 to investigate the appropriate plant population of onion as a companion crop that would not adversely affect the chilli yield and also to assess the economic benefit. The results showed that the yields of chilli decreased with the increase of onion population but the chilli yields when intercropped with 20-80% onion population were not significantly decreased. The highest average yields of dry chilli (1546 kg ha‾1) and onion (8042 kg ha‾1) were observed from their respective sole crops. Average over two years data, all intercropping treatments gave higher chilli equivalent yield and net monetary return per hectare than the sole chilli. In addition, the highest average chilli equivalent yield (2732 kg ha‾1), land equivalent ratio (1.34) and net return (Tk. 46,395.00 ha‾1) were obtained from 20% onion population intercropped with chilli indicating the practice of intercropping of chilli at different onion population was more profitable than the conventional monoculture of chilli.
  M.J. Islam , Shah Md. Helal Uddin , Saiful Huda , M.S. Rahman , M.F. Hossain and Mst. Nahida Laiju
  A study was conducted to evaluate the pond and well water quality at Matiranga Upazilla under very remote areas of Khagrachari Hill District of Bangladesh. The chemical analyses of water included pH, EC, total cations (Ca++, Mg++, Na+, K+, Zn++, Cu++, Mn++, Fe+++, As+++, P+5 and B+3), total anions (CO3--, HCO3- SO4--, NO3- Cl-, TDS, SAR, SSP, RSC and hardness (HT). pH values (6.01-7.17) indicated that the waters were slightly acidic to neutral. Waters contained Ca++, Mg++, Na+, K+, HCO3- and Cl- predominantly along with Zn++, P+5 and B+3 in lesser amounts. Mn++, Cu++ and Fe+++ were found trace to very little amount. As+3 and SO4-- were found trace. TDS and SAR values indicated that all water were under "freshwater" and "excellent" class respectively. SSP of most waters were under "good" "permissible" and "doubtful" class. SAR and EC categorized the waters as C1-S1. All waters were found under "soft" class regarding hardness with "suitable" RSC. Based on As+3, Fe+3, Mn++, Zn++, SO4--, NO3- and Cl- all waters were within the "safe" limit for drinking.

  M.A. Kashem , M.A. Manchur , M.S. Rahman and M.N. Anwar
  Two thermophilic cellulolytic bacterial isolates were tested to determine the effect of carbon and nitrogen sources on the production of extra-cellular proteins, reducing sugars and cellulolytic enzymes. Lactose was found to be the most potential carbon source for Avicelase (342.52 U mL-1) and ß-glucosidase (256.89 U mL-1) activity where as NH4Cl was found to be the potential nitrogen source for CMCase (144.68 U mL-1) activity.
  M.K.U. Parvez , M.A. Hakim , D.K. Chowdhury and M.S. Rahman
  An attempt was made to isolate and study the resistance of bacterial pathogens from clinical specimens (stool, blood and skin lesion) of hospitalized patients against three antibiotics viz., erythromycin, tetracycline and penicillin G. Seven different strains of pathogenic bacteria viz., Salmonella typhi, S. paratyphi, A. shigella dysenteriae, S. sonnei, Staphylococcus aureus, Enterobacter aerogenes and Escherichia coli were isolated. All the isolates were found resistance to penicillin G and tetracycline except S. typhi and S. sonnei which were found sensitive to tetracycline. On the other hand, all the isolates were found to be sensitive against erythromycin tested herein and the highest zone of inhibition (26 mm) was recorded against S. typhi. Subsequent agarose gel electrophoresis showed no plasmid-DNA band in the gel indicating that observed resistance was chromosomal gene-mediated.
  M.Z. Alam , M.S. Rahman , M.E. Haque , M.S. Hossain , M.A.K. Azad and M.R.H. Khan
  The study was conducted to investigated the effect of irrigation and irrigation on growth and yield of wheat (cv. Kanchan). The results revealed that both the irrigation and nitrogen gave significant (p<0.05) effect on all studied growth parameters such as plant height (90.09 and 90.42 cm), number of tillers plant-1 (3.21 and 3.20), leaf area index (LAI) (1.37, 1.55 at 60 DAS and 3.73, 4.77 at 75 DAS), crop growth rate (CGR) (282.10, 333.13 mg day-1 plant-1 at 60-75 DAS and 158.99, 177.35 mg day-1 plant-1 at 75-90 DAS) and relative growth rate (RGR) (0.108, 0.1098 mg mg-1 day-1 at 60-75 DAS and 0.021, 0.022 mg mg-1 day-1 at 75-90 DAS). Among the yield contributing characters the number of effective tillers plant 1 (2.89 and 2.92), number of non effective tillers plant-1 (0.52 and 0.67), number of non-fertile spikelets spike-1 (2.44 and 2.51), grain yield (2.69 and 2.50 t ha-1) and harvest index (46.55 and 45.25%) were significantly influenced by irrigation as well as nitrogen level. The increments of grain yield mainly due to increase in number of effective tillers plant-1.
  M.U. Ahammad , M.S.R. Swapon , T. Yeasmin , M.S. Rahman and M.S. Ali
  An experiment was conducted with 120, seven-day old Vencobb commercial broiler chick feeding ad libitum upto 42 days of age on 4 different iso-nitrogenous and iso-energetic diet formulated by replacing dietary sesame oil cake (SOC) by duckweed (DW) to have its effect on performance of broilers. Live weight, feed conversion and profitability increased when sesame oil cake was partially replaced by duck weed. Complete SOC replaced diet significantly reduced live weight gain, feed intake, feed conversion and profitability, as compared with partial replacement of SOC by duckweed and SOC based control diet. Partial replacement of SOC by DW did not affect survivability of broiler. So it might be concluded that replacement of costly SOC partially by cheaper unconventional DW in broiler diet resulted in increased profitability. Therefore, cheaper duckweed could be practiced in formulating economic balanced diet for broiler.
 
 
 
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