University Journal of Zoology, Rajshahi University最新文献

{"title":"Anotated checklist of birds of Rajshahi University campus: An update","authors":"A. Reza, A. Hasan, Mosharrof Hossain, S. Parween","doi":"10.3329/UJZRU.V31I0.15399","DOIUrl":"https://doi.org/10.3329/UJZRU.V31I0.15399","url":null,"abstract":"The result of bird watching at Rajshahi University (RU) campus during a period from March 2008 to July 2012 is presented in this article. A total of 159 species of birds under 102 genera, 36 families and 13 orders were observed. Highest number of species (76) and genera (41) are passerines, of which the highest number of species belongs to Corvidae family. Among the non-passerines (83 species) maximum number of species is under the family Ardeidae. Three species remained unidentified. Among the birds of RU campus 121 species are residents of Bangladesh; 38 species are migratory, of which 29 are winter visitors, 2 are summer visitors and 7 are passage migrants. Maximum of the bird species are habitants of the open woods. DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15399 Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 39-47","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"07 1","pages":"39-47"},"PeriodicalIF":0.0,"publicationDate":"2013-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86018761","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}

{"title":"High hatching success of saltwater crocodile (Crocodylus porosus) in a commercial Crocodile Farm of Bangladesh","authors":"Md. Sakhawat Hossain, M. F. Jaman, Mushtaq Ahmed, Md Mokhlesur Rahman, Md Saidur Rahman","doi":"10.3329/UJZRU.V31I0.15398","DOIUrl":"https://doi.org/10.3329/UJZRU.V31I0.15398","url":null,"abstract":"An extensive study was conducted from March 2007 to February 2012 on hatching success of saltwater crocodile ( Crocodylus porosus ) in the Reptiles Farm Ltd. (RFL) located at Hatiber village of Uthura union under Bhaluka upazila in Mymensingh. The study was mainly based on direct field observation and some previous data collected by farm’s technicians. A special type of incubator having 98-100% moisture and 31-33 0 C temperature was maintained to improve the hatching success. Yearly hatching success in captivity was 95.8%, 95.15%, 97.44%, 96.03% and 94.53% in 2007 through 2011, respectively. The average rate of hatching success in RFL was 95.8 ± 1.09%. Hundred percent hatching success was found in 29 out of 56 clutches. Clutch size varied from 19 to 68 eggs. Unhatched eggs were 4.19%, of which most of the embryos died before hatching. The average time required for incubation was 79 ± 3, 79.5 ± 4.5, 80 ± 4, 80.5 ± 4.5 and 78.5 ± 3.5 days in the above mentioned period. Compared to the wild habitat, captive environment in controlled weather and predation might improve hatching rates. This study suggests that conservation of this endangered species is possible by captive breeding and reintroduction program. DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15398 Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 35-38","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"65 1","pages":"35-38"},"PeriodicalIF":0.0,"publicationDate":"2013-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75638972","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}

{"title":"Breeding biology of coppersmith barbet, Megalaima haemacephala (Müller, 1776)","authors":"N. J. Sarker, M. Jaman, S. Mustafa, S. Rahman","doi":"10.3329/UJZRU.V31I0.15397","DOIUrl":"https://doi.org/10.3329/UJZRU.V31I0.15397","url":null,"abstract":"Breeding biology of the Coppersmith barbet, Megalaima haemacephala (Muller, 1776) was carried out between February, 2006 and January, 2007 at Sharawardy Uddyan, Ramna Park, Curzon Hall and National Botanical Garden. The breeding season started from December and ended in June. In total 20 nests were observed, of which 10 nests were studied in details in four study areas. The coppersmith barbet mostly preferred to make holes on the branches of koroi ( Albizzia procera ) for nesting. Egg laying started on 15 th February in the study areas. Average height of nests from the ground was 9.7m and average depth and diameter of the holes was 29.20cm and 4.46cm respectively. New holes were constructed yearly or the old one was reused. Both the sexes took part in incubation of eggs, brooding and feeding to the nestlings. A total of 30 eggs were laid in 10 nests. Clutch size varied from 2 – 4 eggs (average: 3 eggs). Among them, 20 (66.67%) eggs were hatched and the rest 10 (33.33%) were unhatched and lost. Average incubation period was 14 days. The male and the female incubated the eggs for an average of 27.44 minutes/ hours and 32.56 minutes/ hours, respectively. Average number of nestlings (brood size) per nest was 2. Out of 20 nestlings, 16 left their nests successively. The breeding success was 53.33% in relation to the number of eggs laid and 80% in relation to nestlings hatched. The average weight of eggs and nestlings was 3.59g and 9.33g, respectively. The main causes of loss of the eggs and nestlings were human interference, predation and ectoparasitic infections. Insects and fruits were fed to the nestlings by their parents. DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15397 Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 31-34","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"35 1","pages":"31-34"},"PeriodicalIF":0.0,"publicationDate":"2013-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79785062","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}

{"title":"Production of small and big fishes of selected ponds","authors":"S. Sultana","doi":"10.3329/UJZRU.V31I0.15378","DOIUrl":"https://doi.org/10.3329/UJZRU.V31I0.15378","url":null,"abstract":"To study the big and Small Indigenous Species (SIS) of fish production, 15 ponds of Rajshahi University campus were selected. The pond production was ranged from 326.16 to 2187.40 kg/ha. The ratio of SIS and big fish production was calculated maximum as 1 : 0.10 (by number) and 1 : 7.46 (by weight). Majority of these SIS fish are Self Recruiting Species (SRS), because they were not stocked in the studied ponds. The F/C ratio was obtained as 4.583 in average DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15378 Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 27-30","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"21 1","pages":"27-30"},"PeriodicalIF":0.0,"publicationDate":"2013-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87846476","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}

{"title":"Efficacy of two inducing agents PG and DoM+SGnRH in the induced breeding of the major carp, kalibaus (Labeo calbasu).","authors":"Jesmine Akhtar, A. S. Bhuiyan","doi":"10.3329/UJZRU.V31I0.15376","DOIUrl":"https://doi.org/10.3329/UJZRU.V31I0.15376","url":null,"abstract":"An experiment on the induced breeding of the endangered fish, Labeo calbasu (Hamilton-Buchanam) was conducted in the Fish Seed Multiplication Farm,Rajshahi to know the efficacy of two inducing agents (PG and DoM+SGnRH). Three breeding trials of each inducing agent were performed. A total of 24 females weighing from 1.5 kg to 2 kg were given an initial and a resolving dose of 1.5 mg and 6 mg PG extract per kg body weight respectively as treatment-1. On the other hand, a total of 24 females weighing from 1.5 kg to 2 kg were given a single dose of 12 mg DoM + SGnRH/kg as treatment-2. In case of treatment-1, 12 males weighing from 1.5 kg to 1.95 kg were administered a single dose of 1.5 mg PG/kg body weight during resolving dose of female. In treatment-2, 12 males weighing from 1.5 kg to 1.8 kg were administered 3 mg DoM+SGnRH /kg body weight during initial dose of females. In treatment-1, the time interval between initial and resolving dose was 5 hours and ovulation occurred in all the injected females within 6 hours after resolving dose. Ovulation occurred within 6 to 8 hours after the injection of inducing agents for treatment-2. The mean rates of ovulation, fertilization and hatching were 100%, 77.36% and 74.5% respectively in treatment-1. On the contrary, the mean rates of ovulation, fertilization and hatching were 83.33%, 63.83% and 59.66% in treatment-2. Hatchery produced fry were reared in nursery pond for 40 days. In nursery pond. Flour, oil cake and wheat bran were applied as nursery feeds. Both the inducing agents were effective in respect of overall breeding performance. But the best results were obtained with PG although in case of DoM+SGnRH complete breeding takes place within short time with less labour and cost than that of PG . DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15376 Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 23-26","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"28 1","pages":"23-26"},"PeriodicalIF":0.0,"publicationDate":"2013-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83579346","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}

{"title":"Effects of acetic acid on the total viable counts of microbes and overall acceptability of dressed broiler meat","authors":"S A Taher, R. Khaton, M. Fakir, M. Hasnat, M M Rahman","doi":"10.3329/UJZRU.V31I0.15370","DOIUrl":"https://doi.org/10.3329/UJZRU.V31I0.15370","url":null,"abstract":"This study was conducted to evaluate efficacy of acetic acid solution to eliminate pathogens, prevent food deterioration and extend the shelf-life of dressed broiler meat without adversely affecting its quality. A total of 40 broilers were categorized into two groups. Each group was further categorized into two sub-groups: one for intact skin and another for without skin. Each bird of either group viz. comprised of two portions breast and thigh muscle. Acid spray and acid immersion were used. Bacteriological analysis by total viable count (TVC) and sanitary quality determination of dressed broiler by taste panel scores were performed. Acetic acid treatment reduced the initial level of TVC by about 0.5 to 0.724 log colony forming unit (CFU)/gm of meat. Maximum reduction in TVC (0.724) was achieved when acetic acid immersion treatment was given to meat and it was evident that the meat quality of dressed broiler after treatment with acetic acid remains better up to 5 days of storage. DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15370 Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 01-04","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"30 1","pages":"01-04"},"PeriodicalIF":0.0,"publicationDate":"2013-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83746304","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}

{"title":"Selection strategies considering varietal differences with respect to egg characters of mulberry silkworm, Bombyx mori L.","authors":"M. Ahsan","doi":"10.3329/UJZRU.V31I0.15375","DOIUrl":"https://doi.org/10.3329/UJZRU.V31I0.15375","url":null,"abstract":"The genotypic variability and correlation coefficients were studied in 27 indigenous multivoltine varieties of mulberry silkworm, B. mori L. for six egg characters. The genotype was highly significant for all the characters under studied. Least difference between genotypic and phenotypic coefficient of variation were observed. Majority of the characters showed high heritability comparing with dead egg percentage. Furthermore Unfertilized egg percentage showed high genetic advance together with high heritability but HP and EW showed high heritability and low genetic advance. These indicate the importance of additive and non-additive gene effect of these characters respectively. Total number of egg laid by female, hatching percentage, and blue egg percentage showed both positive and negative significant correlation to each other at both the phenotypic and genotypic levels. The results suggest that these characters specially total number of egg laid by female, blue egg percentage and unfertilized egg percentage appeared as importance in selection programme for genetic gain in B. mori. DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15375 Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 19-22","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"23 1","pages":"19-22"},"PeriodicalIF":0.0,"publicationDate":"2013-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78378806","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}

{"title":"Biochemical analysis of Five Dried Fish species of Bangladesh","authors":"F. Flowra, Dil Gulrukh Nahar, Anannya Sen Tumpa, M. Islam","doi":"10.3329/UJZRU.V31I0.15373","DOIUrl":"https://doi.org/10.3329/UJZRU.V31I0.15373","url":null,"abstract":"To assess the proximate composition, five dried fish samples of Mystus vittatus , Channa punctatus , Chanda nama , Corica soborna and Trichuirus haumela were selected. The moisture content ranged from 14.06% to 24.58%, protein varied between 44.08% to 65.65% (moisture basis) and 53.45% to 76.39% (dry matter basis), lipid content of the selected dried fishes ranged from 1.91% to 17.76% (moisture basis) and 2.31% to 21.54% (dry matter basis). Ash content varied from 9.63% to 22.73% (moisture basis) and 11.21% to 28.15% (dry matter basis). The experiment was replicated three times and conducted from February, 2009 to August, 2009. Samples were collected from Sayedpur Upazaila, Nilphamari District, the north-west region of Bangladesh. DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15373 Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 09-11","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"22 1","pages":"09-11"},"PeriodicalIF":0.0,"publicationDate":"2013-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84705836","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}

{"title":"Protozoan parasites in a wastewater treatment plant of Bangladesh","authors":"H. Khanum, S. S. Khanam, M. Sultana, Md. Hafiz Uddin, R. C. Dhar, M. Islam","doi":"10.3329/UJZRU.V31I0.15372","DOIUrl":"https://doi.org/10.3329/UJZRU.V31I0.15372","url":null,"abstract":"Parasitic infection is a global health problem especially in developing countries. Municipal wastewaters always contain cysts of parasitic protozoans at some level. The present study was conducted to detect protozoan parasites in different stages of the treatment plant to check its efficacy. Wastewaters were collected from 3 points of the Pagla Sewage Treatent Plant (PSTP) of Dhaka, Bangladesh, throughout the year, 2007-08 at fortnight intervals. Giardia spp., Entamoeba spp., Entamoeba coli , Endolimax nana, Idoamoeba butschlii and Balantidium coli were detected at different times in different stages of the treatment plant. Among these Giardia and Entamoeba spp. were found most frequently than others . Both the prevalence and dominance of protozoan parasites were reduced gradually with the sampling point of the treatment plant which means that the treatment plant was effective in reducing protozoan parasites but not too effective to eliminate them completely. DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15372 Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 05-08","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"17 1","pages":"05-08"},"PeriodicalIF":0.0,"publicationDate":"2013-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87697651","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}

{"title":"Assessment of the production performance and economic efficiencies of available chicken breeds (Gallus domesticus L.) in Rajshahi, Bangladesh","authors":"R. K. Datta, M. Islam, A. Kabir","doi":"10.3329/UJZRU.V31I0.15374","DOIUrl":"https://doi.org/10.3329/UJZRU.V31I0.15374","url":null,"abstract":"Production performance and economic efficiencies of broiler of Cobb 500, cockerel of ISA Brown, Fayoumi, and RIR (Rhode Island Red) and Sonali (derived from RIR♂ × Fayoumi♀) available in Rajshahi were investigated. Identical care and management practices were provided to chickens of all genetic groups reared for meat and egg production. Performance of four meat purpose chickens viz. , Cobb 500, ISA Brown, Fayoumi and Sonali were evaluated in terms of such important parameters as initial body weight (IBW), 5-wk rearing period (RP), achieved body weight (ABW), feed intake (FI), body weight gain (BWG) and feed conversion ratio (FCR). Performance of three egg purpose chickens viz . Fayoumi, RIR and Sonali included weight of day-old chick (WDOC), growth rate (GR), death rate (DR), fertility (FR), hatchability (HT), first laying age (FLA) and monthly egg production (MEP). Economic efficiency parameters viz ., total cost (TC), gross return (GRR), net return (NR) and cost-benefit ratio (CBR) were calculated for both types. In terms of FI, FCR and BWG values, broiler of Cobb 500 was the best preferred and cockerel of ISA Brown the least preferred chicken. Conversely, in terms of the CBR values for meat producers, the cockerel of ISA White (1.58) was the best and the broiler of Cobb 500 (1.15) the worst. Taking the FLA and MEP into account, RIR topped the list (19.1 wks and 23 eggs per month) whereas Cobb 500 ranked at the bottom (25.2 wks and 16 eggs per month). CBR for egg productivity, on the other hand, was highest in Sonali (1.11) followed by RIR and Fayoumi (1.10 each) and Cobb 500 (1.09). As regards the meat productivity, significant correlations existed between TC and NR for all chickens except Sonali , which exhibited a negative correlation between the traits. Negative and non-significant associations prevailed for egg productivity in all the chickens. Although broiler of Cobb 500 was found to be the most popular for meat and RIR for egg, the cockerel of ISA Brown was the chicken that earned the maximum CBR. DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15374 Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 13-18","PeriodicalId":23467,"journal":{"name":"University Journal of Zoology, Rajshahi University","volume":"14 5 1","pages":"13-18"},"PeriodicalIF":0.0,"publicationDate":"2013-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79913179","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}