University Journal of Zoology, Rajshahi University最新文献_第3页

Present status and fish seed production of the hatcheries of six upazilas of Rajshahi District 拉杰沙希区6个渔场的现状及鱼种产量

University Journal of Zoology, Rajshahi University Pub Date : 2012-05-24 DOI: 10.3329/UJZRU.V30I0.10743

Abdus Salam Bhuyan, S. Akther, Naima Aktar

{"title":"Present status and fish seed production of the hatcheries of six upazilas of Rajshahi District","authors":"Abdus Salam Bhuyan, S. Akther, Naima Aktar","doi":"10.3329/UJZRU.V30I0.10743","DOIUrl":"https://doi.org/10.3329/UJZRU.V30I0.10743","url":null,"abstract":"An investigation was conducted during the period from March to December, 2009 to know the status and fish seed production of the hatcheries of six upazilas of Rajshahi district. All the hatcheries were established during 1968 to 2003. The occupations of the hatchery owners are hatchery business and others. Training status of the hatchery owners shows that in maximum cases they had no training and other cases had short term training, consulting with UFO etc. Funding source was self and loan, land ownership was own and lease. Fish disease occurs seldomly. The area of hatchery buildings ranged from 5 to 33 decimals. The water carrying capacity of overhead tanks ranged from 9091.90 to 409135.5 liter. The volume of each cistern ranged from 1.73 m 3 to 3.93 m 3 . The volume of circular breeding and hatching tanks, varied from 2.48 m 3 to 4.02 m 3 and 1.72 m 3 to 3.14 m 3 . The volume of each incubation tank (bottle) ranged from 1.52 m 3 to 1.08 m 3 . The number of permanent workers ranged from 2 to 6 in all seasons. Six native species (rui, catla, mrigel, calibaush, bata and gonia) and six exotic species (silvercarp, bighead carp, grass carp, common carp, Thai pangus and Thai puti) were used for seed production. Two types of hormonal injections, such as Pituitary Gland (PG) and Human Chorionic Gonadotropin (HCG) were used for this purpose. Average fry production were for rui, 140.38 ± 127.02 kg, catla, 37.25 ± 29.24 kg, mrigel, 105.63 ± 54.84 kg, calibaush, 13.50 ± 5.75 kg, gonia, 32 ± 0 kg, bata, 166 ± 113.27 kg, silvercarp, 132.38 ± 96.32 kg, bighead carp, 120.71 ± 116.62 kg, grass carp, 31 ± 11.53 kg, common carp, 140.83 ± 93.83 kg, Thai pangus, 10 ± 0 kg, Thai puti, 42.33 ± 33.71 kg was recorded in some surveyed private hatcheries. The total fry production in some surveyed hatcheries ranged from 85 to 1698 kg with an average of 662.75 ± 513.83 kg. DOI: http://dx.doi.org/10.3329/ujzru.v30i0.10743 Univ. j. zool. Rajshahi Univ. Vol. 30, 2011 pp. 29-32","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"42 1","pages":"29-32"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82332874","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: 11

Genetic variability, correlation, path analysis and construction of selection index in mulberry silkworm, Bombyx mori L. I. Genetic variability 桑蚕遗传变异、相关分析、通径分析及选择指数构建

University Journal of Zoology, Rajshahi University Pub Date : 2012-05-24 DOI: 10.3329/UJZRU.V30I0.10744

A. Hasan, S. M. Rahman, K. Ahsan

{"title":"Genetic variability, correlation, path analysis and construction of selection index in mulberry silkworm, Bombyx mori L. I. Genetic variability","authors":"A. Hasan, S. M. Rahman, K. Ahsan","doi":"10.3329/UJZRU.V30I0.10744","DOIUrl":"https://doi.org/10.3329/UJZRU.V30I0.10744","url":null,"abstract":"The genotypic variability and heritability for nine quantitative characters in 65 varieties of silkworm, B. mori L. have been investigated. Variation among genotypes were highly significant (p<0.001) for all the characters indicating the existence of a real difference among the genotypes which are suitable for breeding purposes. The highest heritability was obtained for shell weight followed by filament size (FS), filament length (FL), expected cocoon yield out of 100 dfls (ECY), surviving percentage of larvae (SPL), cocoon weight (CW), egg hatching percentage (EHP) and mature larval weight (MLW). Comparatively high heritability accompanied by a genetic advance was recorded for FL and total number of eggs laid per female (TEL) indicating the importance of additive gene effects of these characters, but shell weight, cocoon weight and filament size showed high heritability and low genetic advance indicating the involvement of non-additive gene systems in the inheritance of these characters. So selection on the basis of these characters, with relatively more emphasis upon filament length and total number of eggs laid per female to obtain high yielding varieties of B. mori is suggested. DOI: http://dx.doi.org/10.3329/ujzru.v30i0.10744 Univ. j. zool. Rajshahi Univ. Vol. 30, 2011 pp.33-36","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"12 1","pages":"33-36"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83148133","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

Significance of duck in the transmission of avian influenza virus 鸭在禽流感病毒传播中的意义

University Journal of Zoology, Rajshahi University Pub Date : 2012-05-24 DOI: 10.3329/UJZRU.V30I0.10759

M. Z. Islam, Shahana Ahmed, S. Khan, M. Hossain

引用次数: 2

Availability of small indigenous species (SIS) of fish in the Chalan Beel - the largest wetland of Bangladesh 孟加拉国最大的湿地查兰比尔的小型本地物种(SIS)的可用性

University Journal of Zoology, Rajshahi University Pub Date : 2012-05-24 DOI: 10.3329/UJZRU.V30I0.10756

Fahmida Aktar Kostori, S. Parween, M. Islam

{"title":"Availability of small indigenous species (SIS) of fish in the Chalan Beel - the largest wetland of Bangladesh","authors":"Fahmida Aktar Kostori, S. Parween, M. Islam","doi":"10.3329/UJZRU.V30I0.10756","DOIUrl":"https://doi.org/10.3329/UJZRU.V30I0.10756","url":null,"abstract":"An investigation was conducted to study the abundance and diversity of Small Indigenous Species (SIS) of fish in the Chalan Beel. Sampling was carried out frequently over a year in selected landing centres, fish markets and catch points. A total of 82 SIS fish belonging to 10 orders, 22 families and 46 genera were recorded. The order Cypriniformes (42.68%) was the most dominant order comprising 35 species. The most dominant family of the order Cypiniformes was Cyprinidae (77.14%) comprising 27 species, and Puntius was the largest genus including 7 species. The most abundant SIS fishes observed during the study period were Tengra ( Mystus vittatus , M. tengara ), Punti ( Puntius sophore and P. ticto ), Taki ( Channa punctatus ), Guchi Baim ( Mastacembelus pancalus ), and the least abundant SIS fish were Aplocheilus panchax , Badis badis , Danio sp. and Chaca chaca . Availability of the species were ranked as Few (39%), followed by Common (23%), Very Common (15%), Rare (16%) and Very Rare (7%). At Mohisluti fish landing centre (under Tarash, Sirajganj) the highest number of species (79, 96.34%) of small fishes were found. Abundance of different SIS fishes were found to vary with the season. DOI: http://dx.doi.org/10.3329/ujzru.v30i0.10756 Univ. j. zool. Rajshahi Univ. Vol. 30, 2011 pp. 67-72","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"25 1","pages":"67-72"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89494398","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: 31

Occurence of ecto- and endo parasites in pigeon (Columba livia Linn.) 鸽子(Columba livia Linn.)外、内寄生虫的发生

University Journal of Zoology, Rajshahi University Pub Date : 2012-05-24 DOI: 10.3329/UJZRU.V30I0.10758

Sharmin Musa, Sharmin Afroz, H. Khanum

引用次数: 24

Diversity of avifauna at the Bangladesh Academy for Rural Development (BARD), Kotbari, Comilla 孟加拉国农村发展学院(BARD)鸟类的多样性，科米拉科特巴里

University Journal of Zoology, Rajshahi University Pub Date : 2012-05-24 DOI: 10.3329/UJZRU.V30I0.10746

M. Jaman, S. Rahman, M. Haque

{"title":"Diversity of avifauna at the Bangladesh Academy for Rural Development (BARD), Kotbari, Comilla","authors":"M. Jaman, S. Rahman, M. Haque","doi":"10.3329/UJZRU.V30I0.10746","DOIUrl":"https://doi.org/10.3329/UJZRU.V30I0.10746","url":null,"abstract":"The diversity of avifauna at the BARD (Bangladesh Academy for Rural Development), Comilla was studied from March, 2010 to March, 2011. A total of 41 species of birds (20 non-passerines and 21passerines) were identified. Among the total species, 37 (90.25%) were resident and 4 (9.75%) were winter migrants. Regarding to the habitat types utilized by individual species, 11 was bush dwellers, 5 at open place, 5 on human habitations, 4 on tall trees, 10 in garden, 6 found at near the pond. Relative abundance (by number) showed that 10 species were very common, 25 common, 9 fairly common and 7 few. The highest density was recorded for Passer domesticus (480.15 indiv. / acre) and the lowest was for Dicrurus macrocercus (1.29 indiv. / acre) . Among these birds, 18 (43.91%) species were insectivores, 6 (14.64%) piscivores, 6 (14.64%) granivores, 2 (4.88%) frugivores, 4 (9.76%) rodentivores, only one (2.44%) nectar feeder and the rest 3 (7.32%) were mixed feeders. Among the avifauna, 8 (21.63%) species were included in the threatened category, of which 2 (5.41%) were critically endangered, 3 (8.11%) endangered and 3 (8.11%) vulnerable nationally. Direct communication with local people recorded that illegal exploitation of forest, trapping, shooting of birds and collection of young as cage birds are the mentionable causes of decline of the diversity and population of avifauna in the study area. Control of unwise exploitation, plantation of indigenous fruit-trees and creation of awareness, preparation of integrated management action plan (IMAP) and its implementation in co-operation with National and International organizations are mostly essential for conservation of avian diversity in the study area. DOI: http://dx.doi.org/10.3329/ujzru.v30i0.10746 Univ. j. zool. Rajshahi Univ. Vol. 30, 2011 pp. 41-44","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"50 1","pages":"41-44"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80961319","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

Heterosis and combining ability estimates for the total number of eggs laid per female in silkworm, Bombyx mori L. 家蚕单雌产卵数的杂种优势和配合力评价。

University Journal of Zoology, Rajshahi University Pub Date : 2012-05-24 DOI: 10.3329/UJZRU.V30I0.10754

H. Rashid, S. Rahman, M. Ahsan

{"title":"Heterosis and combining ability estimates for the total number of eggs laid per female in silkworm, Bombyx mori L.","authors":"H. Rashid, S. Rahman, M. Ahsan","doi":"10.3329/UJZRU.V30I0.10754","DOIUrl":"https://doi.org/10.3329/UJZRU.V30I0.10754","url":null,"abstract":"Heterosis and combining ability for total number of eggs laid per female silkworm Bombyx mori L were investigated in a six parent diallel crossing programme in four rearing seasons. Magnitude of heterosis varied from seasons to season and was not consistent over characters. Effect of season was important in the expression of genetic variances and other parameters studied. Considerable amount to heterosis was obtained in the crosses where parents Nistari Oval (G), BSRI-98 and BV-High were involved. Parental performance as judged by general combining ability quantities indicated that BSRI-98 was the best general combining parent in all the rearing seasons. The variance due to the specific combing ability (? 2 sca) was higher than the general combining ability (? 2 gca) in all seasons, indicating the preponderance of non-additive gene action in inheritance of that trait. Majority of the crosses showing significant sca effects had either one or both the parents were good general combiners. Thus the combining ability of parents may be considered as a reliable guide in the prediction of the yield potential of those crosses. The crosses Nistari Oval (G)×BSRI-98, Nistari×BSRI-98 and BSRI-95× Nan Nung7B are recommended for the commercial exploitation of heterosis as an important egg producing breeds in majority of the rearing seasons. DOI: http://dx.doi.org/10.3329/ujzru.v30.10754 Univ. j. zool. Rajshahi Univ. Vol. 30, 2011 pp. 55-59","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"8 2 1","pages":"55-59"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78085994","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

Conservation of breeding colonies of the bank myna, Acridotheres ginginianus (Latham 1790), in Chapai Nawabganj, Bangladesh 孟加拉查派纳瓦甘杰银八哥(Latham 1790)繁殖群的保护

University Journal of Zoology, Rajshahi University Pub Date : 2012-05-24 DOI: 10.3329/UJZRU.V30I0.10753

M. Ahsan, M. Kabir

引用次数: 0

Insecticidal and repellent activities of the chloroform extracts of Urena sinuata L. against Tribolium castaneum (Herbst) adults 水仙草氯仿提取物对木犀虫成虫的杀虫驱避活性研究

University Journal of Zoology, Rajshahi University Pub Date : 2012-05-24 DOI: 10.3329/UJZRU.V30I0.10740

M. Abdullah, A. Pk, Dkma Saleh, A. R. Khan, N. Islam

引用次数: 6

A report on Aporcelaimellus sp (Nematoda: Dorylaimidae) from cultivated crops in Rajshahi University Campus Rajshahi大学校园栽培作物中Aporcelaimellus sp(线虫纲:Dorylaimidae)的报道

University Journal of Zoology, Rajshahi University Pub Date : 2012-05-24 DOI: 10.3329/UJZRU.V30I0.10752

N. Ara, Mosarraf Hossain

引用次数: 0