Pub Date : 2009-01-28DOI: 10.3329/UJZRU.V27I0.1953
S. Mahdi, K. Rahman
The experiment was conducted to investigate the insecticidal potency of some spices eg. clove ( Syzygium aromaticum ), black pepper ( Piper nigrum ), ceylon cinnamon ( Cinnamomum zeylanicum ), black cardamom ( Amomum subulatum ), nutmeg ( Myristica fragnans ), black cumin ( Nigella sativa ), turmeric ( Curcuma longa ), red pepper ( Capsicum frutescens ), cumin ( Cuminum cyminum ), green cardamom ( Elettaria cardamomum ) and bay leaf ( Cinnamomum tamala ), against the pulse beetle, Callosobruchus maculatus (F.) on stored black gram ( Phaseolus bengalensis L.). Data were recorded on days to 100% mortality; number of adults emerged and weight loss (%) of black gram. All the spices were effective as protectants of black gram seeds. However, clove and black pepper were most effective. Key words: Callosobruchus maculatus , stored black gram, mortality, adult emerge, extent of damage. doi:10.3329/ujzru.v27i0.1953 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 47-50
{"title":"Insecticidal effect of some spices on Callosobruchus maculatus (Fabricius) in black gram seeds","authors":"S. Mahdi, K. Rahman","doi":"10.3329/UJZRU.V27I0.1953","DOIUrl":"https://doi.org/10.3329/UJZRU.V27I0.1953","url":null,"abstract":"The experiment was conducted to investigate the insecticidal potency of some spices eg. clove ( Syzygium aromaticum ), black pepper ( Piper nigrum ), ceylon cinnamon ( Cinnamomum zeylanicum ), black cardamom ( Amomum subulatum ), nutmeg ( Myristica fragnans ), black cumin ( Nigella sativa ), turmeric ( Curcuma longa ), red pepper ( Capsicum frutescens ), cumin ( Cuminum cyminum ), green cardamom ( Elettaria cardamomum ) and bay leaf ( Cinnamomum tamala ), against the pulse beetle, Callosobruchus maculatus (F.) on stored black gram ( Phaseolus bengalensis L.). Data were recorded on days to 100% mortality; number of adults emerged and weight loss (%) of black gram. All the spices were effective as protectants of black gram seeds. However, clove and black pepper were most effective. Key words: Callosobruchus maculatus , stored black gram, mortality, adult emerge, extent of damage. doi:10.3329/ujzru.v27i0.1953 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 47-50","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"78 1","pages":"47-50"},"PeriodicalIF":0.0,"publicationDate":"2009-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80985622","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}
Pub Date : 2009-01-28DOI: 10.3329/UJZRU.V27I0.1957
H. Uddin, H. Khanum
The prevalence of intestinal parasitic infestation and anaemic status of adolescent boys (age 10-19 years) of two selected villages, Kutumbopur, Comilla and Gazirchat, Dhaka districts was investigated. Anaemic status was determined by measuring hemoglobin percentage and parasitic infestation was detected and identified under microscope with wet mount and stained preparations. Out of 106 adolescent boys, only two (1.9%) showed severe anaemia. Among the other anaemic status, 50.9% was moderately anaemic, 39.6% mildly anaemic and 7.5% non anaemic. Adolescent boys were infected (49.01%) with one or more type of protozoan and helminth parasites. Both anaemia and parasitic infestation were more prevalent in Gazirchat while compared to Kutumbopur. Parasitic infestation and anaemia was not correlated. Key words: Anaemia, adolescent boys, Ascaris, Trichuris, Entamoeba, Giardia  doi:10.3329/ujzru.v27i0.1957 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 63-65
调查了达卡地区库图姆布尔、科米拉和加兹尔查特两个村10-19岁青少年男孩肠道寄生虫感染的流行情况和贫血状况。用血红蛋白百分比测定贫血状态，用湿载和染色制剂在显微镜下检测和鉴定寄生情况。在106名青春期男孩中，只有两名(1.9%)表现出严重贫血。在其他贫血状态中，50.9%为中度贫血，39.6%为轻度贫血，7.5%为非贫血。青春期男孩感染一种或多种原生动物和寄生虫(49.01%)。与库图姆布尔相比，加济尔恰特贫血和寄生虫感染更为普遍。寄生虫感染与贫血无相关性。关键词:贫血，青春期男孩，蛔虫，Trichuris，内阿米巴，贾第鞭毛虫Â doi:10.3329/ujzru.v27i0.1957Rajshahi university . Vol. 27, 2008 pp. 63-65
{"title":"Intestinal parasitic infestation and anaemic status among the adolescent boys in Bangladesh","authors":"H. Uddin, H. Khanum","doi":"10.3329/UJZRU.V27I0.1957","DOIUrl":"https://doi.org/10.3329/UJZRU.V27I0.1957","url":null,"abstract":"The prevalence of intestinal parasitic infestation and anaemic status of adolescent boys (age 10-19 years) of two selected villages, Kutumbopur, Comilla and Gazirchat, Dhaka districts was investigated. Anaemic status was determined by measuring hemoglobin percentage and parasitic infestation was detected and identified under microscope with wet mount and stained preparations. Out of 106 adolescent boys, only two (1.9%) showed severe anaemia. Among the other anaemic status, 50.9% was moderately anaemic, 39.6% mildly anaemic and 7.5% non anaemic. Adolescent boys were infected (49.01%) with one or more type of protozoan and helminth parasites. Both anaemia and parasitic infestation were more prevalent in Gazirchat while compared to Kutumbopur. Parasitic infestation and anaemia was not correlated. Key words: Anaemia, adolescent boys, Ascaris, Trichuris, Entamoeba, Giardia  doi:10.3329/ujzru.v27i0.1957 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 63-65","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"64 1","pages":"63-65"},"PeriodicalIF":0.0,"publicationDate":"2009-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90500271","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}
Pub Date : 2009-01-28DOI: 10.3329/UJZRU.V27I0.1966
A. Rahman, My Akter
Cockroaches are high priority urban pests because their aesthetically unappealing damage stored products and household goods and transmit diseases. (Ebeling, 1978). It becomes a public health problem due to their association with human waste and disease and their ability to move from sewers into homes and commercial establishment. They are well known pest of considerable economic and medical importance (Cameron, 1956). Cockroaches also a mechanical vector of several communicable diseases like gastroenteritis and food poisoning (Bitter, 1949; Eades et al, 1954) transmit Bacillus staphylococci poliomyelitis viruses and destructive mould (Sylverton et al., 1952; Morrel, 1991). There are almost 4,00 species of cockroaches (Service, 1980) . Among them American cockroach, Periplaneta americana L. is an obnoxious, omnivorous and filthy domestic pest of tropical zone
蟑螂是城市中最重要的害虫，因为它们的外观不美观，会破坏储存的产品和家庭用品，并传播疾病。(Ebeling, 1978)。由于它们与人类排泄物和疾病有关，并且能够从下水道进入家庭和商业机构，因此成为一个公共卫生问题。它们是众所周知的害虫，具有相当大的经济和医疗重要性(Cameron, 1956年)。蟑螂也是胃肠炎和食物中毒等几种传染病的机械媒介(Bitter, 1949;Eades等人，1954)传播脊髓灰质炎葡萄球菌病毒和破坏性霉菌(Sylverton等人，1952;莫雷尔,1991)。蟑螂大约有4000种(Service, 1980)。美洲大蠊(Periplaneta americana L.)是热带地区令人讨厌的杂食性肮脏的家庭害虫
{"title":"Potential of cypermethrin or diazinon and their combined action with piperonyl butoxide (PBO) against Periplaneta americana L","authors":"A. Rahman, My Akter","doi":"10.3329/UJZRU.V27I0.1966","DOIUrl":"https://doi.org/10.3329/UJZRU.V27I0.1966","url":null,"abstract":"Cockroaches are high priority urban pests because their aesthetically unappealing damage stored products and household goods and transmit diseases. (Ebeling, 1978). It becomes a public health problem due to their association with human waste and disease and their ability to move from sewers into homes and commercial establishment. They are well known pest of considerable economic and medical importance (Cameron, 1956). Cockroaches also a mechanical vector of several communicable diseases like gastroenteritis and food poisoning (Bitter, 1949; Eades et al, 1954) transmit Bacillus staphylococci poliomyelitis viruses and destructive mould (Sylverton et al., 1952; Morrel, 1991). There are almost 4,00 species of cockroaches (Service, 1980) . Among them American cockroach, Periplaneta americana L. is an obnoxious, omnivorous and filthy domestic pest of tropical zone","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"127 1","pages":"101-102"},"PeriodicalIF":0.0,"publicationDate":"2009-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80241922","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}
Pub Date : 2009-01-28DOI: 10.3329/UJZRU.V27I0.1950
M. Khalequzzaman, J. Nahar
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  doi:10.3329/ujzru.v27i0.1950 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 31-34
采用间接施用法测定5种杀虫剂的毒性;分别对大豆、茄子、土豆和菜花上饲养的4种主要作物害虫蚜虫，即马拉硫磷、克硫丹、cymbush、吡虫啉和印楝素进行了抑虫试验。采用残膜技术，将经检测蚜虫的蔬菜叶片带入实验室。马拉硫磷对松果蚜、棉蚜、桃蚜和桃蚜的lc50分别为327.97、333.92、305.26和313.77 μ g cm -2，毒性最小。氯氰菊酯对上述蚜虫的lc50分别为12.55、12.29、12.55和12.10 μ g cm -2，毒性最强。氯磺胺和吡虫啉毒性中等。印楝素是一种天然植物源杀虫剂，其毒性最强，对裂花姬螨的lc50为0.41 μ g cm -2，对棉姬螨的lc50为0.34 μ g cm -2，对桃蚜和erysimi的lc50均为0.44 μ g cm -2。关键词:杀虫剂，毒性，印楝素，紫蚜，棉蚜，桃蚜，紫唇蚜Â doi:10.3329/ujzru.v27i0.1950Rajshahi university . Vol. 27, 2008 pp. 31-34
{"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  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}
Pub Date : 2009-01-28DOI: 10.3329/UJZRU.V27I0.1960
S. Rahman, A. S. Jewel
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 (33.21-33.53°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   doi:10.3329/ujzru.v27i0.1960 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 79-84
2006年1 - 12月，对拉吉沙希市辖区2个城市鱼塘蓝藻种群的发生和丰度进行了逐月监测。花期分别在3月、8月和9月。记录了水温、透明度、pH、溶解氧(DO)、游离二氧化碳(CO 2)、生物需氧量(BOD)、NO 2- N、nh3 - N、nh4 +、有毒氨、氧化还原指数(rH 2)等环境参数，并讨论了它们与蓝藻华形成的关系。在研究期间，共鉴定出23种蓝藻。其中微囊藻属、水藻属、浮游蓟马属为优势属。铜绿微囊藻是花期的最优势种。在水华高峰期，池1和池2蓝藻中铜绿微囊藻分别占总数的81.64%和83.24%。研究发现，较高的温度(33.21-33.53°C)、碱性pH(8.8)和营养物富集(特别是高浓度no2 - N、nh3 - N和nh4 +)会触发蓝藻，尤其是微囊藻自然华的发生和持续。关键词:蓝藻华，营养物，鱼塘  doi:10.3329/ujzru.v27i0.1960Rajshahi university . Vol. 27, 2008 pp. 79-84
{"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 (33.21-33.53°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   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}
Pub Date : 2009-01-28DOI: 10.3329/UJZRU.V27I0.1948
Mosharrof Hossain
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  doi:10.3329/ujzru.v27i0.1948 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 21-24
气单胞菌感染可能是养殖温水鱼中最常见的细菌性疾病。本研究通过16S rDNA测序分离出6株对淡水鱼具有致病性的气单胞菌。其中维氏气单胞菌属3个，ATCC气单胞菌属2个，嗜水气单胞菌属1个。韩国通常从南亚和东南亚国家进口，用于娱乐目的。然而，它们作为疾病的媒介或携带者发挥着重要的作用。在这项研究中，受感染的鱼经常在鳍的底部或皮肤上出血，并有明显的溃疡性病变。内部征象包括腹部积液，肝脾肿大，肠扩张积液。本研究利用16S rDNA测序技术从进口淡水鱼类中分离气单胞菌，对环境、兽医和临床具有重要意义。关键词:细菌，大肠杆菌，16S rDNA，气单胞菌Â doi:10.3329/ujzru.v27i0.1948Rajshahi university . Vol. 27, 2008 pp. 21-24
{"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  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}
Pub Date : 2009-01-28DOI: 10.3329/UJZRU.V27I0.1952
M. Hossain, Hossain, M. Rahman, R. Afza, Da Khanom
The research work was conducted to measure the nursery pond water quality parameters during the period of June 2006 to May 2007 in Mymensingh. The highest value of water temperature, alkalinity, ammonia, free carbon dioxide, DO, P H and hardness was 30.2°C (May'07) in pond-1, 174ppm (Feb.'07) in pond-2, 3.5ppm (July'06) in pond-1, 8.5ppm (Dec.'06J06) in pond-1(also in April in pond-2), 8.4 (June'06) in pond-2 and 175ppm (Sep.'06) in pond-2 respectively. The lowest value of these parameters was 18°C (Jan.'07) in pond-2, 70ppm (Nov.'06) in pond-1, 0.03ppm (Sep.'06) in pond-2, 4ppm (Sep.'06) in pond-2, 5.5ppm (June'06) in pond-1, 6.2 (Oct.'06) in pond-2 and 64ppm (March'07) in pond-1. The value of physicochemical parameters of water had more or less significant combined effect on one another. Key words: Physicochemical, nursery pond, fish fry, disease  doi:10.3329/ujzru.v27i0.1952 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 43-46
研究工作于2006年6月至2007年5月对迈门辛格苗圃池水质参数进行了测量。池1的水温、碱度、氨、游离二氧化碳、DO、ph和硬度最高值分别为30.2°C(2007年5月)、池2的174ppm(2007年2月)、池1的3.5ppm(2006年7月)、池1的8.5ppm(2006年12月)(池2的4月)、池2的8.4(2006年6月)和池2的175ppm(2006年9月)。这些参数的最低值分别为:2号池18°C(2007年1月)，1号池70°C(2006年11月)，2号池0.03°C(2006年9月)，2号池4°C(2006年9月)，1号池5.5°C(2006年6月)，2号池6.2°C(2006年10月)，1号池64°C(2007年3月)。水的理化参数值具有或多或少显著的综合效应。关键词:理化，苗圃，鱼苗，病害 doi:10.3329/ujzru.v27i0.1952Rajshahi university . Vol. 27, 2008 pp. 43-46
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Pub Date : 2009-01-28DOI: 10.3329/UJZRU.V27I0.1946
K. Ahsan, SM Rahman
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.
对35个杂交种的5个性状进行了基因型变异和相关系数的研究。基因型间差异极显著(P<0.001)。所有性状的表型变异系数均高于基因变异系数。其中，未受精卵率和死卵率的基因型变异系数和表型变异系数差异最大，表明环境对这些性状的影响最大。除孵化率外，其余性状遗传力高。单雌产蛋总数表现出较高的遗传进阶性和遗传力，说明加性基因效应在该性状中的重要性。除DEP Vs TEL和DEP Vs UEP外，大部分性状的基因型相关均高于表型相关。这些低表型相关性可能是由于环境的修饰作用和基因型水平上性状的关联。孵化率、蓝蛋率和未受精卵率呈正、负显著相关。因此，在家蚕遗传增益选择中，应重视这些性状，特别是雌卵总数和孵化率。森。
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Pub Date : 2009-01-28DOI: 10.3329/UJZRU.V27I0.1965
S. Bhuiyan, M. Joadder, A. S. Bhuiyan
No Abstract doi:10.3329/ujzru.v27i0.1965 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 99-100
摘要doi:10.3329/ujzru.v27i0.1965 Univ. j. zool。Rajshahi university . Vol. 27, 2008 pp. 99-100
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Pub Date : 2009-01-28DOI: 10.3329/UJZRU.V27I0.1956
M. Sayeed, G. S. Hossain, S. K. Mistry, K. Huq
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
泰国盘古鱼与鲤鱼混养因其高潜力而不断增加，但很少有人尝试比较其使用不同类型饲料的生长情况。2005年5月15日至2006年4月15日在库尔纳进行了为期11个月的研究，评估了三种饲料对泰国盘鱼(Pangasius hypophthalmus)和罗虎(Labeo rohita)在混养系统中的生长影响。在t1、t2和t3三个处理下，比较了手工饲料(f1)与桑尼饲料(f2)和沙特-孟加拉饲料(f3)两种商品鱼饲料的生长性能。所有处理分三次进行，泰国盘鱼为24700/公顷，罗虎为4940/公顷。泰国盘鱼和罗虎的平均初始体重分别为4.5和33.5g。饲料类型对生长性能有影响。泰国盘鱼和罗虎的平均末重分别为820和710;846和770;872和717g，比生长率分别为1.58和0.93;t1、t2和t3的day -1分别为1.59和0.95,1.60和0.93%。饲料转化率估计在t1为2.3,t2为2.1,t3为1.96。结果表明，随着饲料蛋白质水平的提高，泰国盘鱼的末重和特定生长率呈典型的增加趋势。但罗虎在蛋白质水平为26-30%的t2生长最快，低于蛋白质水平为28-32%的t3。研究表明，鱼类的正常生长需要适宜的蛋白质水平和优质饲料。关键词:饲料，泰国盘古菌，复养，生长Â Â Â doi:10.3329/ujzru.v27i0.1956 Univ. j. zool。Rajshahi university . Vol. 27, 2008 pp. 59-62
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