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Search Results: 1 - 10 of 5629 matches for " Md. Jalal Uddin Sarder "
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Retained placenta of dairy cows associated with managemental factors in Rajshahi, Bangladesh
Md. Hemayatul Islam,Md. Jalal Uddin Sarder,Syed Sarwar Jahan,Moizur Rahman
Veterinary World , 2013, DOI: 10.5455/vetworld.2013.180-184
Abstract: Aim: The incidence of retained placenta of dairy cows in relation to individual animal level and farm management factors such as farm type, farm size, housing system, floor type, feed quality, time of parturition, farming experience of farmer and delivery pattern of cows was determined. Materials and Methods: A total 1205 parturated dairy cows conducted in nine upazilas and four Metro Thana of Rajshahi district during July 2010 to June 2011for attainment of the result. Individual animal and farm management factors associated with retained placenta were recorded in a structured questionnaire through face-to-face farmer's interview and reviewing farm records. The raw data were compiled and statistical SPSS program to analyze to obtained result. Results: The overall incidence of retained placenta was 13.4%. The incidence was significantly higher in Local × Sahiwal genotype (4.6%) and late delivery (longer gestation period) (80%) than their counter groups (p<0.05). The large farm (6.0%) had higher incidence and had no significant effect than medium and individual household. Similarly animals housed in Tin shed building with poor ventilation facilities (6.6%), animal housed in unscientific concrete floor (6.8%), animals mostly grassed along with small amount of straw supplied (5.4%) and a farmer had less than one year farming experience (5.3%) had not significant statistically show higher incidence of retained placenta. Conclusion: The local genotype; mini farm; supplied better feed quality; vast farming experience of farmer and normal delivery with eutocia had less chance of retained placenta of dairy cows. [Vet World 2013; 6(4.000): 180-184]
Consequence of Dam Genotypes on Productive and Reproductive Performance of Dairy Cows under the Rural Condition in Bangladesh
Md. Jalal Uddin Sarder,M. Mahbubur Rahman,Soshe Ahmed,Mst. Rokeya Sultana
Pakistan Journal of Biological Sciences , 2007,
Abstract: The main objective of the present study was to evaluate the consequence of dam genotypes on productive and reproductive performance of different cross-bred dairy cows under field condition. A total of 313 dairy cow=s information were collected from 33 Artificial Insemination (AI) Sub-centers/Points from the District AI center of greater Rajshahi district for a period from 1993 to 2002. The information of the productive and reproductive parameters were analyzed from questionnaires answered by 33 field assistant (artificial inseminator) and owner`s of cow in respective of AI Sub-Center/Points as well as from reading the AI and 100% progeny collection Registers. In general, the mean birth weight, age at puberty, age at first fertile service, age at first calving, gestation length, post-partum heat period, days open, wastage day, service per conception, milk production per day, peak milk production per day, lactation length, lactation yield, dry period, weaning period and calving intervals were 18.8 kg, 27.9 month, 29.2 month, 38.7 months, 278.7 days, 139 days, 160 days, 20.3 days, 1.62, 5.13 L, 10.45 L, 282 days, 1445 L, 146 days, 10.65 months and 438 days, respectively. Dam genotype of dairy cows were divided into 5 groups according to their genetic composition. LxF, SxSL, L, LxSLxF and LxSxSL of dam genotype had significant effect on all the productive and reproductive performances of the dairy cows except on age at first calving, gestation length and weaning period. The genotypes of dam`s of cows like LF and LxSL showed a better performance under field condition at greater Rajshahi district and poor performance were recorded in L and LxSxSL of dam genotype. The experiment reflects that the LxF and LxSL genotypes of dam showed the better productive and reproductive performances of dairy cows under rural condition in Bangladesh.
Antioxidant and Antibacterial Activities of Senna tora Roxb.
Sarder Nasir Uddin,Md. Eunus Ali,Mst. Nazma Yesmin
American Journal of Plant Physiology , 2008,
Abstract: Methanol and aqueous extract of the dried aerial part of Senna tora Roxb. were subjected to the potential antioxidant and antibacterial activities. The antioxidant potential of the extract was determined on the basis of their scavenging activity of the stable 1,1-diphenyl-2-picryl hydrazyl (DPPH) free radical. IC50 of the methanol extract of Senna tora was 109.65 μg mL-1 which indicated the strong antioxidant activity of the plant extract. Methanol extract of Senna tora possess strong antioxidant activity. However the aqueous extract showed mild antioxidant activity. In case of antibacterial activities test, the extract was subjected for its effectiveness against both Gram-positive and Gram-negative bacteria in agar diffusion method. The zones of inhibition produced by the crude methanol and aqueous extract against few sensitive strains was measured and compared with those of standard antibiotic Gentamycin. It is evident that both extracts are active against the bacteria at low concentrations. The obtained results provide a support for the use of this plant in traditional medicine and suggest its further investigation.
In vitro Propagation of Banana (Musa sp. Cv. Kanthali): An Endogenous Variety of Bangladesh with Controlling Bacterial Contaminations
Sarder Nasir Uddin,Soubir Titov,Md. Abdul Wadud
American Journal of Plant Physiology , 2006,
Abstract: Shoot tips of a traditional table banana [Musa sp. cv. Kanthali (Genome AAB)] of Bangladesh were evaluated for in vitro propagation. Initial surface sterilization (with 0.1% HgCl2 for 12 min) of shoot tips was successful but microbial contamination (mostly bacteria) at the rhizomatous base of the explants were observed within 6-15 days after inoculation which eventually killed 85% inoculated explants. So, for contamination free culture establishment explants were soaked in two broad spectrum antibiotics namely ampicillin and gentamicin. Cent percent contamination free cultures were established by soaking the explants in 400 mg L-1 ampicillin or 200 mg L-1 gentamicin for 1 h. Antibiotic treated explants were found to be full contamination free but failed to regenerate after 3 weeks of culture. But some of them absorbed media for up to 2nd subculture and showed swelling of explants and some color changes from pale white to light/deep green. Finally, a few days after 3rd subculture, no growth of explants was observed and all treated explants eventually started to die. Among the untreated alive explants the best medium for single shoot development was MS + 4.0 mg L-1 BA + 0.5 mg L-1 Kn + 15% CW and average time required for shoot development was 18-21 days. But the regeneration percentage was very low (30%). The best medium for shoot multiplication was MS + 4.0 mg L-1 BA + 2.0 mg L-1 IAA + 15% CW and average time required for production of multiple shoots from single shoot was 40-45 days. Multiplication rate was also too low (40%) and only average 3-4 shoots were formed. Finally, in vitro proliferated shoots produced roots with maximum frequency (90%) in half strength of MS medium fortified with 0.5 mg L-1 IBA.
Physiological Mechanism of Thermotolerance in Wheat (Triticum aestivum Lin.) Seedlings  [PDF]
Soyema Khatun, Jalal Uddin Ahmed, Md. Mahi Imam Mollah, Kim Taewan
American Journal of Plant Sciences (AJPS) , 2018, DOI: 10.4236/ajps.2018.913198
Abstract: A research work was performed under sub-tropical condition (24°8'N, 90°0'E) at Bangabandhu Sheikh Mujibur Rahman Agricultural University with three wheat genotypes (BARI Gom 25, BARI Gom 26 and Pavon 76) to observe the mobilization of seed reserve and seedling growth under normal (15°C/25°C) and elevated (25°C/35°C) temperature in growth chamber. The effect of high temperature on wheat seedling was observed in terms of mobilized seed reserve, respiration and transpiration efficiency and seedling growth. At 35°C temperature, maximum mobilization of seed reserve was observed in BARI Gom varieties (BARI Gom 25 and 26) but the respiration efficiency was higher in Pavon 76 in comparison to other genotypes. Maximum loss of respiration and transpiration at 35°C temperature was found to produce low seedling growth in Pavon 76. It appeared from the result that at high temperature the maximum mobilized seed reserve and subsequently minimum loss of respiration and transpiration collectively contributed a positive role for better seedling growth in BARI Gom 25 and BARI Gom 26. Therefore the better mobilized seed reserve and subsequently minimum loss of respiration and transpiration during seedling development are indicators of the thermo tolerance in growing wheat seedling.
Leaf Water Status and Its Relationship with Reproductive Responses of Common Bean (Phaseolus vulgaris L.) Genotypes under Water Stress  [PDF]
Apurba Kanti Choudhury, Md Abdul Karim, Md Moynul Haque, Qazi Abdul Khaliq, Jalal Uddin Ahmed, Mohammad Mofazzal Hossain
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.511169
Abstract:

Two tolerant (BB24 and BB43) and two susceptible (BARI busbean-2 and BB04) genotypes of common bean (Phaseolus vulgaris L.) were evaluated for their water status and its relationship with reproductive responses under continuous water stress (50% field capacity) and control (80% field capacity) conditions in a net house covered with polyethylene sheet at the Bangabandhu Sheikh Mujibur Rahman Agricultural University, Bangladesh. Under water stress condition, the susceptible genotype namely BB04 exhibited more negative leaf water potential (LWP) which was followed by that of BARI bushbean-2 in all the time of the day except at noon. The tolerant genotype namely BB24 exhibited less negative LWP at noon. The tolerant genotypes maintained higher relative water content (WRC) than the susceptible ones from dawn to dusk. The relationship between RWC and LWP was examined separately for four genotypes under water stress condition. The genotype BB24 showed a smaller decrease in RWC with more negative LWP than BB04. Water stress reduced pod setting ratio. The relationship between the leaf water status and reproductive responses showed that the genotype with a little reduction in mid-day drop of RWC or with high mid-day RWC displayed a high pod setting ratio.

Control of Endogenous Bacterial Contamination and Micropropagation of a Traditional Table Banana (Musa spp. cv. Kanthali) of Bangladesh
香蕉组织培养过程中内生菌污染的控制

Soubir Titov,Salil Kumar Bhowmik,Md Sadrul Alam,Sarder Nasir Uddin,
Soubir Titov
,Salil Kumar Bhowmik,Md. Sadrul Alam,Sarder Nasir Uddin

微生物学报 , 2007,
Abstract: 研究了体外培养一种孟加拉传统香蕉(Musa spp. Cv. Kanthali)的茎尖组织。茎尖的原始细胞表面经无菌处理(0.1% HgCl2处理12min),接种6~15d后外植体地下茎部分仍有微生物污染(大部分是细菌),杀死了85%的外植体。为确定无污染培养基,将等量外植体分别浸泡在含400mg/L氨苄青霉素和200mg/L庆大霉素(两种光谱抗生素)的培养基中1h。结果表明,经抗生素处理的外植体完全没有污染,但培养3周后不能再生。进行二次继代培养后,其中一部分外植体吸收了培养基并胀大,颜色由苍白转变成浅绿或深绿。三次继代培养后数天,不再观察到外植体的生长,所有经抗生素处理过的外植体都开始死亡。在未经抗生素处理的活外植体中,单个茎发育的最佳培养基是:MS+4.0mg/L BA+0.5mg/L KT+15% CW,平均生长时间为18~21d,但再生率很低,只有30%。茎细胞增殖的最佳培养基是:MS+4.0mg/L BA+2.0mg/L IAA+15% CW,每个茎平均只萌发3~4个芽。最后,在添加0.5mg/L IBA的一半浓度的MS培养基中,体外培养茎最大生根率达到90%。
Control of Endogenous Bacterial Contamination and Micropropagation of a Traditional Table Banana (Musa spp. cv. Kanthali) of Bangladesh
香蕉组织培养过程中内生菌污染的控制

Soubir Titov,Salil Kumar Bhowmik,MdSadrul Alam,Sarder Nasir Uddin,
Soubir Titov
,Salil Kumar Bhowmik,Md. Sadrul Alam,Sarder Nasir Uddin

生物工程学报 , 2007,
Abstract: Shoot tips of a traditional table banana (Musa spp. cv. Kanthali) of Bangladesh were evaluated for in vitro propagation. Initial surface sterilization (with 0.1% HgCl2 for 12 minutes) of shoot tips was successful but microbial contamination (mostly bacteria) at the rhizomatous base of the explants was observed within 6-15 days after inoculation which eventually killed 85% of inoculated explants. So, for contamination free culture establishment explants were soaked in two broad spectrum antibiotics namely ampicillin and gentamicin. Cent percent contamination free cultures were established by soaking the explants in 400 mg/L ampicillin or 200 mg/L gentamicin for 1h. Antibiotic treated explants were found to be full contamination free but failed to regenerate after 3 weeks of culture. But some of them absorbed media for up to 2nd subculture and showed swelling of explants and some color changes from pale white to light/deep green. Finally, a few days after 3rd subculture, no growth of explants was observed and all treated explants eventually started to die. Among the untreated alive explants the best medium for single shoot development was MS + 4.0 mg/L BA + 0.5 mg/L KT + 15% CW and average time required for shoot development was 18-21 days. But the regeneration percentage was very low (30%). The best medium for shoot multiplication was MS + 4.0 mg/L BA + 2.0 mg/L IAA + 15% CW and only average 3-4 shoots were formed per shoot. Finally, in vitro proliferated shoots produced roots with maximum frequency (90%) in half strength of MS medium fortified with 0.5 mg/L IBA.
香蕉组织培养过程中内生菌污染的控制
Soubir Titov?,Salil Kumar Bhowmik?,Md. Sadrul Alam?,Sarder Nasir Uddin
生物工程学报 , 2007,
Abstract: 研究了体外培养一种孟加拉传统香蕉(musaspp.cv.kanthali)的茎尖组织。茎尖的原始细胞表面经无菌处理(0.1%hgcl2处理12min),接种6~15d后外植体地下茎部分仍有微生物污染(大部分是细菌),杀死了85%的外植体。为确定无污染培养基,将等量外植体分别浸泡在含400mg/l氨苄青霉素和200mg/l庆大霉素(两种光谱抗生素)的培养基中1h。结果表明,经抗生素处理的外植体完全没有污染,但培养3周后不能再生。进行二次继代培养后,其中一部分外植体吸收了培养基并胀大,颜色由苍白转变成浅绿或深绿。三次继代培养后数天,不再观察到外植体的生长,所有经抗生素处理过的外植体都开始死亡。在未经抗生素处理的活外植体中,单个茎发育的最佳培养基是:ms+4.0mg/lba+0.5mg/lkt+15%cw,平均生长时间为18~21d,但再生率很低,只有30%。茎细胞增殖的最佳培养基是:ms+4.0mg/lba+2.0mg/liaa+15%cw,每个茎平均只萌发3~4个芽。最后,在添加0.5mg/liba的一半浓度的ms培养基中,体外培养茎最大生根率达到90%。
Solving Linear Equations Using a Jacobi Based Time-Variant Adaptive Hybrid Evolutionary Algorithm
A. R. M. Jalal Uddin Jamali,M. M. A. Hashem,Md. Bazlar Rahman
Computer Science , 2013,
Abstract: Large set of linear equations, especially for sparse and structured coefficient (matrix) equations, solutions using classical methods become arduous. And evolutionary algorithms have mostly been used to solve various optimization and learning problems. Recently, hybridization of classical methods (Jacobi method and Gauss-Seidel method) with evolutionary computation techniques have successfully been applied in linear equation solving. In the both above hybrid evolutionary methods, uniform adaptation (UA) techniques are used to adapt relaxation factor. In this paper, a new Jacobi Based Time-Variant Adaptive (JBTVA) hybrid evolutionary algorithm is proposed. In this algorithm, a Time-Variant Adaptive (TVA) technique of relaxation factor is introduced aiming at both improving the fine local tuning and reducing the disadvantage of uniform adaptation of relaxation factors. This algorithm integrates the Jacobi based SR method with time variant adaptive evolutionary algorithm. The convergence theorems of the proposed algorithm are proved theoretically. And the performance of the proposed algorithm is compared with JBUA hybrid evolutionary algorithm and classical methods in the experimental domain. The proposed algorithm outperforms both the JBUA hybrid algorithm and classical methods in terms of convergence speed and effectiveness.
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