University Journal of Zoology, Rajshahi University最新文献_第5页

Antibacterial and larvicidal potentials of Derris indica (Lamk.) Bennet. extractives 印度稻瘟病菌的抑菌和杀幼虫活性研究班纳特小姐。抽提

University Journal of Zoology, Rajshahi University Pub Date : 2012-01-13 DOI: 10.3329/UJZRU.V29I1.9460

Omar Ali Mondal, M Emdadul Haque, N. Islam

{"title":"Antibacterial and larvicidal potentials of Derris indica (Lamk.) Bennet. extractives","authors":"Omar Ali Mondal, M Emdadul Haque, N. Islam","doi":"10.3329/UJZRU.V29I1.9460","DOIUrl":"https://doi.org/10.3329/UJZRU.V29I1.9460","url":null,"abstract":"Chloroform extracts of the fruit shell, leaves, root bark, root wood, seeds, stem bark and stem wood of Derris indica were tested for their antibacterial and larvicidal potentials. Except the seed extract all other extracts offered activity against 15 pathogenic bacteria. The fruit shell extract showed activity against B. cereus , S.- β - haemolyticus and S. typhi ; the leaf extract against Klebsiella sp. only; the root bark against B. cereus , B. megaterium , B. subtilis , S. - β - haemolyticus , S. typhi , S. dysenteriae and S. sonnei ; the root wood extract against B. sereus , B. megaterium , B. subtilis , S. - β - haemolyticus , S. typhi , S. dysenteriae , S. shiga , S. sonnei , Klebsiella sp. and P. aeruginosa ; the stem bark extract against B. cereus, B. subtilis , S. - β - haemolyticus and S. sonnei and the stem wood extract against B. cereus , B. megaterium , B. subtilis , S. - β - haemolyticus , S. typhi and S. dysenteriae . According to the intensity of activity against the selected bacteria the D. indica extracts could be arranged in a descending order of root wood> root bark> stem wood> stem bark> fruit shell> leaf extract. The minimum inhibitory concentrations (MICs) of the chloroform extract of root wood of D. indica were 128 μg/ml against S. -β- haemolyticus , B. megaterium and S. dysenteriae and 64 μg/ml against B. cereus ; for the stem wood extract 128 μg/ml against S. -β- haemolyticus , B. megaterium , B. cereus and B. subtilis, and 64 μg/ml against S. dysenteriae . The root bark, root wood, seed and stem wood extracts showed efficacy against the 3rd instar larvae of Musca domestica with LC50 values in a descending order of root wood (3615.92 ppm) > seed (5538.07 ppm) > stem wood (12139.40 ppm) > root bark (16721.24 ppm). Key words: Chloroform extract; Derris indica ; antibacterial and larvicidal activity. DOI: http://dx.doi.org/10.3329/ujzru.v29i1.9460 UJZRU 2010; 29(1): 17-22","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"62 1","pages":"17-22"},"PeriodicalIF":0.0,"publicationDate":"2012-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83996631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Genetic variation of some quantitative traits in ten exotic varieties of silkworm, Bombyx mori L. 家蚕10个外来品种部分数量性状的遗传变异。

University Journal of Zoology, Rajshahi University Pub Date : 2012-01-13 DOI: 10.3329/UJZRU.V29I1.9469

K. Ahsan, SM Rahman

引用次数: 2

Efficacy of cypermethrin, deltamethrin and nimbicidine on fecundity and egg viability of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) 氯氰菊酯、溴氰菊酯和尼比西定对褐飞蛾繁殖力和卵活力的影响(鞘翅目:拟甲科)

University Journal of Zoology, Rajshahi University Pub Date : 2012-01-13 DOI: 10.3329/UJZRU.V29I1.9461

R. Khatun, W. Islam, K. Mondal

引用次数: 2

Effect of salinity on the survival and growth of mud crabling, Scylla serrata 盐度对沙蟹生存和生长的影响

University Journal of Zoology, Rajshahi University Pub Date : 2012-01-13 DOI: 10.3329/UJZRU.V29I1.9462

M. Mia, M. Shah

引用次数: 9

Rapid detection of infectious laryngotracheitis virus by standardization of polymerase chain reaction targeting a relatively conserved region of the thymidine kinase gene 以胸苷激酶基因相对保守区域为靶点的聚合酶链反应标准化快速检测传染性喉气管炎病毒

University Journal of Zoology, Rajshahi University Pub Date : 2012-01-13 DOI: 10.3329/UJZRU.V29I1.9468

S. Chakma, S. Sarker, S. Talukder, Md. Hakimul Haque, E. Chowdhury, A. Bari

{"title":"Rapid detection of infectious laryngotracheitis virus by standardization of polymerase chain reaction targeting a relatively conserved region of the thymidine kinase gene","authors":"S. Chakma, S. Sarker, S. Talukder, Md. Hakimul Haque, E. Chowdhury, A. Bari","doi":"10.3329/UJZRU.V29I1.9468","DOIUrl":"https://doi.org/10.3329/UJZRU.V29I1.9468","url":null,"abstract":"Infectious laryngotracheitis is an acute upper respiratory tract infection of chickens caused by infectious laryngotracheitis virus. The study was conducted to standardize the polymerase chain reaction targeting a relatively conserved region of the thymidine kinase gene for the rapid detection of infectious laryngotracheitis virus. The vaccine samples were collected from two renowned company of Bangladesh. DNA was extracted from diluted vaccine samples by using Wizard® Genomic DNA purification kit and thymidine kinase gene was amplified by using PCR system 9600 Thermocycler. Two vaccine samples were positively amplified by polymerase chain reaction. A procedure was developed for rapid detection of infectious laryngotracheitis virus by polymerase chain reaction of the conserved region of viral thymidine kinase gene containing DNA fragments. The results obtained in this study suggested that the polymerase chain reaction procedure could serve as a fast and sensitive method for the detection of vaccine strains of infectious laryngotracheitis viruses. Key words: Infectious laryngotracheitis virus; viral thymidine kinase (TK) gene; polymerase chain reaction DOI: http://dx.doi.org/10.3329/ujzru.v29i1.9468 UJZRU 2010; 29(1): 61-64","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"45 1","pages":"61-64"},"PeriodicalIF":0.0,"publicationDate":"2012-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73551305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Seasonal abundance of zooplankton and growth performance of prawn and fish in ponds of Rajshahi 拉杰沙希池塘浮游动物的季节性丰度及对虾和鱼类的生长性能

University Journal of Zoology, Rajshahi University Pub Date : 2012-01-13 DOI: 10.3329/UJZRU.V29I1.9459

M. Siddique, M. A. Hussain, Mosharrof Hossain, M. M. Alam

{"title":"Seasonal abundance of zooplankton and growth performance of prawn and fish in ponds of Rajshahi","authors":"M. Siddique, M. A. Hussain, Mosharrof Hossain, M. M. Alam","doi":"10.3329/UJZRU.V29I1.9459","DOIUrl":"https://doi.org/10.3329/UJZRU.V29I1.9459","url":null,"abstract":"The present study was conducted on seasonal abundance of phytoplankton of prawn based carp polyculture system fishponds for a period of six months from September 2006 to February in the village Meherchandi of Boalia thana under Rajshahi district of Bangladesh. During the study period, it was found that water temperature varied from 16.59°C (T 2 ) to 29.82 (T 1 ), transparency 26.72 (T 1 ) to 40.13cm (T2), pH 7.21 (T 1 ) to 8.0 (T 2 ) DO 2.13 (T 2 ) to 3.6mg/l (T 2 ), CO 2 4.63 (T 1 ) to 10.63mg/l (T 2 ), NH 3 N 0.001 (T 1 ) to 0.0197mg/l (T 2 ) and total alkalinity fluctuated from 85.38 (T 1 ) to 147.75mgl (T 2 ). A total four groups of zooplankton were identified where 5 rotifera (38.41%) was dominant followed by 3 cladocera (31.49%), 2 copepoda (21.84%) and crustacean larvae (8.26%). It was also found that zooplankton showed abundance in February. The highest total average zooplankton (18390.79±2144.63 cells/l) was recorded in T 1 than T 2 which might be due to the effective uses by high stocking density of fishes. Zooplankton showed positive correlation with pH, DO, CO 2 and alkalinity in T 1 . In case of T 2 , positive co-relationship was found with pH, DO, CO 2 and NH 3 -N. The mean values of highest final weight of M. rosenbergii , H. molitrix and C. catla were 89.20±8.62g (T 1 ), 682.70±44.20g (T 2 ) and 428.00±4.50g (T 1 ) respectively, highest survival rate was found 76.25±6.25% (T 1 ) of prawn and highest total average yield was obtained 940.65±259.43 kg/ha in T 2 due to high stocking densities of prawn. Key words: Zooplankton abundance; physico-chemical parameters; carp polyculture; growth performance DOI: http://dx.doi.org/10.3329/ujzru.v29i1.9459 UJZRU 2010; 29(1): 9-15","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"108 1","pages":"9-15"},"PeriodicalIF":0.0,"publicationDate":"2012-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89224798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Functional response of Phytoseiulus persimilis Athias-Henriot to Tetranychus urticae Koch: effects of prey life stages and temperature persimilis Athias-Henriot对荨麻叶螨的功能响应:猎物生命阶段和温度的影响

University Journal of Zoology, Rajshahi University Pub Date : 2012-01-13 DOI: 10.3329/UJZRU.V29I1.9458

F. Hoque, W. Islam, M. Khalequzzaman

{"title":"Functional response of Phytoseiulus persimilis Athias-Henriot to Tetranychus urticae Koch: effects of prey life stages and temperature","authors":"F. Hoque, W. Islam, M. Khalequzzaman","doi":"10.3329/UJZRU.V29I1.9458","DOIUrl":"https://doi.org/10.3329/UJZRU.V29I1.9458","url":null,"abstract":"This paper examines the effect of density and temperature on the functional response of adult female Phytoseiulus persimilis to different life stages of the spider mite, Tetranychus urticae . The functional response was determined using functional response assay technique with plant leaf discs an arena. We conducted a logistic regression of the proportion of prey consumed as a function of initial prey density to identify functional response types, and used nonlinear least-squares regression and the random predator equation to estimate attack rates and handling times. In all the cases number of adult male prey attacked by female predator were greater than adult female prey. P. persimilis consumed more eggs and larvae than other stages of prey. Female predator consumed adult prey at each temperature which generally increased with prey density initially but leveled off at higher prey densities. The highest number of eggs, larvae and nymphs consumed by predator in 24 hours was 16.3 ± 0.42, 9.9 ± 0.59 and 9.5 ± 0.40 respectively whereas the highest number of eggs, larvae and nymphs consumed by a single female in 48 hours was 19.5 ± 1.15, 18.6 ± 0.62 and 13.3 ± 0.65 respectively. Handling time generally decreased with temperature whereas successful attack rate increased with temperature except at 30o C. Judging by a/Th values, P. persimilis was most efficient against T. urticae at 30-35oC, about half as efficient at 25 oC and performed poorly at 20o C. Again, from a/Th values, P. persimilis was most efficient against T. urticae in egg stage, about half as efficient at larva and nymph stages and performed poorly at adult stage. Key words: Phytoseiulus persimilis ; Tetranychus urticae ; functional response; predation; temperature. DOI: http://dx.doi.org/10.3329/ujzru.v29i1.9458 UJZRU 2010; 29(1): 1-8","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"27 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2012-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79681183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Larvicidal effect of latex from Calotropis gigantea (L.) W.T. Aiton against the mosquito, Culex quinquefasciatus Say (Diptera: Culicidae) 巨角蠓乳剂的杀幼虫效果致倦库蚊的防治(双翅目:库蚊科)

University Journal of Zoology, Rajshahi University Pub Date : 2012-01-13 DOI: 10.3329/UJZRU.V29I1.9472

K. E. Kabir, A. R. Khan, A. Rahman

引用次数: 4

Dry and wet season polymorphism in the butterflies, Melanitis leda and Mycalesis mineus (Satyridae: Lepidoptera) 干、湿季节蝴蝶的多态性、黑斑蛱蝶和白斑蛱蝶(蛱蝶科:鳞翅目)

University Journal of Zoology, Rajshahi University Pub Date : 2012-01-13 DOI: 10.3329/UJZRU.V29I1.9463

A. Islam, M. Razzak, M. H. Islam, A. Saifullah, K. Endo, A. Yamanaka

{"title":"Dry and wet season polymorphism in the butterflies, Melanitis leda and Mycalesis mineus (Satyridae: Lepidoptera)","authors":"A. Islam, M. Razzak, M. H. Islam, A. Saifullah, K. Endo, A. Yamanaka","doi":"10.3329/UJZRU.V29I1.9463","DOIUrl":"https://doi.org/10.3329/UJZRU.V29I1.9463","url":null,"abstract":"A field survey of butterflies was carried out in different areas of deciduous forests at Kaliakyar, Gazipur, during January-December, 2008. Seven species of satyrid butterflies were collected and two species, Melanitis leda and Mycalesis mineus were found to exhibit dry and wet season polymorphism. The dry season forms (DSFs) and wet season forms (WSFs) of the both species were distinguished by their upperside and underside wing patterns. The DSFs occurred only in the drier period (November to February) when day length was shorter than 12 hrs. at lower temperatures (24.1-20.6°C). Both the species of butterflies of the wetter period (March - October) were predominant of the WSF when day length was longer than 12 hrs. at higher temperatures (26.8-27.6°C). The fluctuations in the number of seasonal forms of M. leda and M. mineus were higher in DSF than those of WSF. The transition of DSF to WSF and WSF to DSF of M. leda was found to occur around the end of April and the early of September, respectively. But the turnover of DSF to WSF occurred around the early March and the turnover of WSF to DSF in October in M. mineus . Key word: Butterflies; seasons; polymorphism; Melanitis leda; Mycalesis mineus DOI: http://dx.doi.org/10.3329/ujzru.v29i1.9463 UJZRU 2010; 29(1): 33-39","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"9 1","pages":"33-39"},"PeriodicalIF":0.0,"publicationDate":"2012-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86652974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Determination of immune response against alum-precipitated fowl cholera vaccine in the quail, Coturnix japonica 鹌鹑对铝沉淀禽霍乱疫苗免疫反应的测定

University Journal of Zoology, Rajshahi University Pub Date : 2012-01-13 DOI: 10.3329/UJZRU.V29I1.9467

M. Iqbal, Md. Hakimul Haque, S. Sarker, Ma Islam, K. Choudhury

{"title":"Determination of immune response against alum-precipitated fowl cholera vaccine in the quail, Coturnix japonica","authors":"M. Iqbal, Md. Hakimul Haque, S. Sarker, Ma Islam, K. Choudhury","doi":"10.3329/UJZRU.V29I1.9467","DOIUrl":"https://doi.org/10.3329/UJZRU.V29I1.9467","url":null,"abstract":"The immune response of a formalin-inactivated alum-precipitated fowl cholera vaccine (FCV) was evaluated in quails, Coturnix japonica (Order: Galliformes and Family: Mimidae). All quails, irrespective of sex and 8-weeks-old were immunized with 5×10 7 CFU/ml/quail subcutaneously (SC) and intramuscularly (IM). A Booster immunization was given with similar dose and routes at 15 days after primary immunization in groups A and B while group C served as unimmunized control. Pre-immunized sera were collected from all groups of birds to assay the primary antibody levels in them. Sera of the immunized and control quails were collected at 15 and 30 days post immunization. The degree of immunity produced in each group of quails following primary and secondary immunizations were determined by measuring their serum antibody titres using passive haemagglutination assay (PHA) test. The level of antibody was significantly increased both primary and booster immunization in immunized quails as determined by PHA titres. Two weeks after final immunization, the quails were challenged with a virulent isolate of fowl cholera and immunized quails conferred 100% protection while all the control quails were dead within 10 days post challenge. Key words: Fowl cholera; alum-precipitated vaccine; immune response; PHA test; quail DOI: http://dx.doi.org/10.3329/ujzru.v29i1.9467 UJZRU 2010; 29(1): 57-59","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"19 5","pages":"57-59"},"PeriodicalIF":0.0,"publicationDate":"2012-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72563197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2