University Journal of Zoology, Rajshahi University最新文献_第8页

Insecticidal effect of some spices on Callosobruchus maculatus (Fabricius) in black gram seeds 几种香料对黑克兰种子中斑蚜虫的杀虫效果

University Journal of Zoology, Rajshahi University Pub Date : 2009-01-28 DOI: 10.3329/UJZRU.V27I0.1953

S. Mahdi, K. Rahman

引用次数: 75

Intestinal parasitic infestation and anaemic status among the adolescent boys in Bangladesh 孟加拉国青春期男孩肠道寄生虫感染和贫血状况

University Journal of Zoology, Rajshahi University Pub Date : 2009-01-28 DOI: 10.3329/UJZRU.V27I0.1957

H. Uddin, H. Khanum

引用次数: 8

Potential of cypermethrin or diazinon and their combined action with piperonyl butoxide (PBO) against Periplaneta americana L 氯氰菊酯和二嗪农酯对美洲大蠊的防效及其与胡椒酰丁醇(PBO)的联合作用

University Journal of Zoology, Rajshahi University Pub Date : 2009-01-28 DOI: 10.3329/UJZRU.V27I0.1966

A. Rahman, My Akter

引用次数: 5

Relative toxicity of some insecticides and azadirachtin against four crop infesting aphid species 几种杀虫剂与印楝素对四种作物蚜虫的相对毒性研究

University Journal of Zoology, Rajshahi University Pub Date : 2009-01-28 DOI: 10.3329/UJZRU.V27I0.1950

M. Khalequzzaman, J. Nahar

{"title":"Relative toxicity of some insecticides and azadirachtin against four crop infesting aphid species","authors":"M. Khalequzzaman, J. Nahar","doi":"10.3329/UJZRU.V27I0.1950","DOIUrl":"https://doi.org/10.3329/UJZRU.V27I0.1950","url":null,"abstract":"Indirect application was used to assay the toxicity of five insecticides; viz. malathion, carbosulfan, cymbush, imidacloprid and azadirachtin against four important crop infesting aphid species, Aphis craccivora Koch , Aphis gossypii Glover , Myzus persicae (Sulzer) and Lipaphis erysimi (Kaltenbach), reared on bean, brinjal, potato and cauliflower plants respectively. Residual film technique was applied by bringing leaves with tested aphids of the vegetable plants in the laboratory. Malathion was the least toxic to all aphids having LC 50 as 327.97, 333.92, 305.26 and 313.77 I¼g cm -2 for A. craccivora, A. gossypii, M. persicae and M. persicae respectively. Cypermethrin was the most toxic showing LC 50 as 12.55, 12.29, 12.55 and 12.10 I¼g cm -2 in the above mentioned species of aphid respectively. Carbosulfan and imidacloprid showed moderate toxicity. Azadirachtin as a natural plant origin insecticide proved to be the most toxic having LC 50 as 0.41 I¼g cm -2 for A. craccivora , 0.34 I¼g cm -2 for A. gossypii and 0.44 I¼g cm -2 for both M. persicae and L. erysimi. Key words: Insecticide, toxicity, azadirachtin, Aphis craccivora, Aphis gossypii, Myzus persicae, Lipaphis erysimi Â doi:10.3329/ujzru.v27i0.1950 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 31-34","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"78 1","pages":"31-34"},"PeriodicalIF":0.0,"publicationDate":"2009-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78934963","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

Cyanobacterial blooms and water quality in two urban fish ponds 两个城市鱼塘的蓝藻繁殖和水质

University Journal of Zoology, Rajshahi University Pub Date : 2009-01-28 DOI: 10.3329/UJZRU.V27I0.1960

S. Rahman, A. S. Jewel

{"title":"Cyanobacterial blooms and water quality in two urban fish ponds","authors":"S. Rahman, A. S. Jewel","doi":"10.3329/UJZRU.V27I0.1960","DOIUrl":"https://doi.org/10.3329/UJZRU.V27I0.1960","url":null,"abstract":"The occurrence and abundance of cyanobacterial population was monitored monthly in two urban fish ponds in Rajshahi City Corporation area from January to December, 2006. The bloom was observed in March, August and September. Some environmental parameters such as water temperature, transparency, pH, Dissolved Oxygen(DO), free Carbon dioxide(CO 2 ), Biological Oxygen Demand (BOD), NO 2- N, NH 3- N, NH 4 + , toxic ammonia, Oxidation reduction Index (rH 2 ) were recorded and their relationship with the bloom formation by cyanobacteria are discussed. During the study period 23 species of cyanobacteria were identified. Among which Microcystis , Anabaena , Planktothrix were found to be the dominant genera. Microcystis aeruginosa was the most dominant species during the bloom period. At the peak bloom period, Microcystis aeruginosa comprised 81.64% and 83.24% of total cyanophyceae in pond-1 and pond-2, respectively. The initiation and persistence of natural bloom of cyanobacteria, especially Microcystis was found to be triggered by relatively high temperature (33.21-33.53Â°C), alkaline pH (8.8), and nutrient enrichment especially high NO 2- N, NH 3- N, and NH 4 + concentration. Key words : Cyanobacterial bloom, nutrient, fish pond Â Â doi:10.3329/ujzru.v27i0.1960 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 79-84","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"28 1","pages":"79-84"},"PeriodicalIF":0.0,"publicationDate":"2009-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91322586","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: 20

Isolation of pathogenic bacteria from the skin ulcerous symptomatic gourami ( Colisa lalia ) through 16S rDNA analysis 用16S rDNA分析分离有症状皮肤溃疡性gouria (Colisa lalia)致病菌

University Journal of Zoology, Rajshahi University Pub Date : 2009-01-28 DOI: 10.3329/UJZRU.V27I0.1948

Mosharrof Hossain

{"title":"Isolation of pathogenic bacteria from the skin ulcerous symptomatic gourami ( Colisa lalia ) through 16S rDNA analysis","authors":"Mosharrof Hossain","doi":"10.3329/UJZRU.V27I0.1948","DOIUrl":"https://doi.org/10.3329/UJZRU.V27I0.1948","url":null,"abstract":"Aeromonas spp infections are probably the most common bacterial disease diagnosed in cultured warm water fish. In the present study, six strains of Aeromonas spp bacteria were isolated from the gourami ( Colisa lalia ) by 16S rDNA sequencing analyses that are pathogenic to freshwater fish. Among them, three were under Aeromonas veronii species, two were Aeromonas sp ATCC and one was Aeromonas hydrophila . Colisa lalia usually imported in Korea from the South and South-east Asian countries for recreational purposes. However, they are playing important role as a disease vector or carriers. The infected fish of this study frequently have hemorrhages at the base of the fins or on the skin, and gross ulcerative lesions. Internal signs include, fluid in the abdomen, swollen liver and spleen, and the intestine was distended and fluid-filled. In this study, the utility of 16S rDNA sequencing was employed to isolate Aeromonas bacteria from freshwater imported fish are important to environment, veterinary, and clinical purposes. Key word : Bacteria, Colisa lalia , 16S rDNA, Aeromonas Â doi:10.3329/ujzru.v27i0.1948 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 21-24","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"84 1","pages":"21-24"},"PeriodicalIF":0.0,"publicationDate":"2009-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85101722","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: 23

Physicochemical condition of two nursery ponds at Iswarganj, Mymensingh Mymensingh Iswarganj两个育苗池的理化条件

University Journal of Zoology, Rajshahi University Pub Date : 2009-01-28 DOI: 10.3329/UJZRU.V27I0.1952

M. Hossain, Hossain, M. Rahman, R. Afza, Da Khanom

引用次数: 3

Genetic variability and correlation analysis in hybrids of mulberry silkworm, Bombyx mori L. for egg characters 桑蚕杂交种卵性状的遗传变异及相关分析

University Journal of Zoology, Rajshahi University Pub Date : 2009-01-28 DOI: 10.3329/UJZRU.V27I0.1946

K. Ahsan, SM Rahman

{"title":"Genetic variability and correlation analysis in hybrids of mulberry silkworm, Bombyx mori L. for egg characters","authors":"K. Ahsan, SM Rahman","doi":"10.3329/UJZRU.V27I0.1946","DOIUrl":"https://doi.org/10.3329/UJZRU.V27I0.1946","url":null,"abstract":"The genotypic variability and correlation coefficients were studied in thirty five hybrid populations for five egg characters. Variations among genotypes were highly significant (P<0.001). Phenotypic coefficient of variation was higher than genotypic coefficient of variation for all the characters. Of them unfertilized and dead egg percentage showed highest difference between genotypic and phenotypic coefficient of variation suggesting most influence of environment on these characters. Majority of the characters showed high heritability except hatching percentage. Furthermore total number of egg laying per female showed high genetic advance together with high heritability, which indicates the importance of additive gene effect of this character. The genotypic correlations were higher than phenotypic correlation for majority of the characters under study except DEP Vs TEL and DEP Vs UEP. These low phenotypic correlations could be due to a modifying effect of environment and the association of characters at genotypic level. Hatching percentage, blue egg percentage and unfertilized egg percentage showed both positive and negative significant correlation to each other. Therefore, proper attention should be given to these characters specially total number of egg laid by female and hatching percentage in selection programme for genetic gain in Bombyx. mori.","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"7 1","pages":"13-16"},"PeriodicalIF":0.0,"publicationDate":"2009-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72885518","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: 22

Occurrence of fishes and non-fin fishes of the river Padma near Rajshahi, Bangladesh 孟加拉国拉杰沙希附近的帕德玛河鱼类和非鳍类鱼类的发生

University Journal of Zoology, Rajshahi University Pub Date : 2009-01-28 DOI: 10.3329/UJZRU.V27I0.1965

S. Bhuiyan, M. Joadder, A. S. Bhuiyan

引用次数: 26

Growth performance of thai pangus ( Pangasius hypophthalmus ) in polyculture system using different supplementary feeds 不同辅助饲料对泰国下眼鲶鱼(Pangasius hypophthalmus)混养系统生长性能的影响

University Journal of Zoology, Rajshahi University Pub Date : 2009-01-28 DOI: 10.3329/UJZRU.V27I0.1956

M. Sayeed, G. S. Hossain, S. K. Mistry, K. Huq

{"title":"Growth performance of thai pangus ( Pangasius hypophthalmus ) in polyculture system using different supplementary feeds","authors":"M. Sayeed, G. S. Hossain, S. K. Mistry, K. Huq","doi":"10.3329/UJZRU.V27I0.1956","DOIUrl":"https://doi.org/10.3329/UJZRU.V27I0.1956","url":null,"abstract":"Thai pangus polyculture with carps has been increasing for its high potential, however very few attempts were made to compare its growth using different types of feed. A research was undertaken to assess the effect of three types of feed on growth of Thai pangus ( Pangasius hypophthalmus ) and rohu ( Labeo rohita ) in polyculture system for 11 months from 15 May 2005 to 15 April 2006 in Khulna. Growth performance using Hand-made Feed (F 1 ) was compared with two commercial fish feed, Sunney Feed (F 2 ) and Saudi-Bangla Feed (F 3 ) in three respective treatments of T 1 , T 2 and T 3 . All treatments were carried out in triplicate at 24700/ha for Thai pangus and 4940/ha for rohu. Average initial weight of Thai pangus and rohu were 4.5 and 33.5g respectively. Growth performance was influenced by feed type. Average final weight of Thai pangus and rohu were 820 and 710; 846 and 770; and 872 and 717g with specific growth rate 1.58 and 0.93; 1.59 and 0.95 and 1.60 and 0.93 % day -1 in T 1 , T 2 and T 3 respectively. Feed conversion ratio was estimated 2.3 in T 1 , 2.1 in T 2 and 1.96 in T 3 . The result showed a typical increasing trend of final weight and specific growth rate of Thai pangus along with the increasing of feed protein level. But rohu showed highest growth in T 2 where protein level was 26-30% which was lower than that of T 3 (Protein level 28-32%). The study suggests that suitable protein level and quality feed is required for adequate growth of fish. Key words: Feed, Thai pangus, Polyculture, Growth. Â Â Â doi:10.3329/ujzru.v27i0.1956 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 59-62","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"9 1","pages":"59-62"},"PeriodicalIF":0.0,"publicationDate":"2009-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90421744","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: 28