Note ultrastructure of egg membrane of rohu labeo rohita. Feeding habits are varied depend upon age and size of fish at larval stage they feed on zooplankton but change to phytoplankton at fingerings stage and vegetable or detritous at adult stage. The relationships between total length and fecundity, total weight and fecundity, ovary weight and fecundity, total length and ovary weight and total weight and ovary weight have been worked out for the species. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Feeding ecology of the freshwater fish rohu labeo rohita hamilton 1822. Labeo is a genus of carps in the family cyprinidae. Genetic diversity analysis of labeo rohita hamilton, 1822. Fish are aquatic, cold blooded and craniate vertebrates belonging to the super class pisces under phylum chordata. Spawns in middle reaches of rivers, where flood water spreads in more or less limpid shallows over fertile flats, well above tidal reaches. The four loci were polymorphic p 95 in all the populations. They are found in freshwater habitats in the tropics and subtropics of africa and asia. Randomly amplified polymorphic dna analysis of four. The rohu, rui, or roho labeo labeo rohita is a species of fish of the carp family, found in rivers. External morphology of rohu fish with diagram chordata.
Studies on the biology of some important major carps. Growth performance and biochemical composition of labeo. Certificate this is to certify that the thesis entitled production of all male rohu, labeo rohita ham. This report describes structural and functional properties of ifn. Materials and methods fish samples were collected from landing sites situated adjacent to the harike wetland for. It breathes by means of gills and also frequently comes to water surface for gulping air into the air bladder. Materials and methods the present study was carried out during sept. Labeo rohita or its common name as rohu is a freshwater fish species which originated in india and distributed in pakistan and burma. Six dinucleotide microsatellite loci lr3, lr12, lr14b, lr21, lr24. Materials and methods experimental fish and sites experiment was conducted to access the level of polymorphism and genetic diversity in natural population of labeo rohita collected from selected zones of river ganga. The variations in haematological parameters in relation to the size and weight of the fish were also examined.
Amylolytic, proteolytic and cellulolytic bacteria were detected in the fish gut. Synopsis of biological data on rohu labeo rohita food and. Acute toxicity of detergent to indian major carps catla catla. Data on mortality % were analyzed using grafpad software based on finneys probit statistical method. Lengthweight relationships of the indian major carp, labeo rohita. Pdf study on biometrics and biology of rohu, labeo rohita from.
Read the haematology of rohu, labeo rohita, journal of fish biology on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Labeo catla hamilton, 1822 and labeo rohita hamilton, 1822 have been brought to iran to increase fish production. Labeo rohita is found in tropical and temperate regions. Enzyme producing bacteria in the gastrointestinal tracts of. Heterosis analysis in straincrossed hybrid rohu labeo rohita through.
Presence of several biochemical constituents in neem makes it an efficient antimicrobial agent for pathogenic diseases. Interspecific and intergeneric hybrids among carps and also with common carp cyprinus carpio var. Randomly amplified polymorphic dna analysis of four different. Four dinucleotide microsatellite loci were analysed to reveal population genetic structure of the indian major carp, labeo rohita collected from three major rivers namely the halda, the jamuna, and the padma in bangladesh. It is the commonest cap in the plains of india, except in the south. Accepted 3 april, 2014 for genetic improvement and management of stocks of the indian major carp, labeo rohita, assessment of genetic variation of wild stocks is essential.
Pdf studies on the feeding habits of labeo rohita ham. Metals studied were chromium, iron, zinc, lead, and copper. Statistically significant relations were found to exist between the. The fecundity of the rohu, labeo rohita hamilton springerlink. Islam department of fisheries biology and genetics, bangladesh agricultural university, mymensingh, bangladesh. Feeding ecology of the freshwater fish rohu labeo rohita. This graceful indogangetic riverine species is the natural inhabitant of the riverine system of northern and central india, and the rivers of pakistan, bangladesh and myanmar. Labeo rohita rohu is commonly found in freshwater ponds, lakes, rivers and streams. The majority of skeletal muscle genes require both mrfs and mef2 family members to. Department of zoology, aligarh muslim university, 185 pp. The haematology of rohu, labeo rohita, journal of fish. Study on antimicrobial potential of neem oil nanoemulsion. Fecundity estimations from sixtyfive specimens ofl.
Labeo rohita, lengthweight relationship, condition factor. Myogenic regulatory factors mrfs along with myocyte specific enhancer factor 2 mef2 play the pivotal role in the determination and differentiation of skeletal muscle. The haematology of rohu, labeo rohita siddiqui 1979. Studies on some aspects of biology and morphometry of the intergeneric hybrid, catla catla hamil ton x labeo rohita hamilton produced by hypophysation. Isolation and enumeration of heterotrophic bacteria from the gastrointestinal tracts of rohu, labeo rohita and murrel, channa punctatus have been carried out to find out their importance in the nutrition of the host fish. A catlarohu hybrid produced by hypophysation was found to be intermediate in general appearance to the parent species. If the labeonini are considered a tribe of the cyprininae, the labeos are placed in subtribe labeoina. The fingerlings of catla and rohu were exposed to five different concentrations 10, 12, 14, 16 and 18ppm of surf excel for 24, 48, 72 and 96hrs. Labeo rohita was originally described as cyprinus rohita hamilton 1822. We examined and compared heavy metals bioaccumulation in cyprinus carpio and labeo rohita netted from sardaryab, a tributary of river kabul. Acute toxicity of detergent to indian major carps catla. Some aspects of reproductive biology on effect of heavy metal pollution on the histopathological structure of gonads in labeo rohita hamiltonbuchanan from harike wetland, india onkar singh brraich and sulochana jangu department of zoology and environmental sciences, punjabi.
Molecular characterization and expression analysis of two. Characterization and inductive expression analysis of. The rohu, rui, or roho labeo labeo rohita is a species of fish of the carp family, found in rivers in south asia. The current investigation was aimed to assess the therapeutic potential of neem nanoemulsion as a control measure for pseudomonas aeruginosa infection in freshwater fish labeo rohita. Some aspects of reproductive biology on effect of heavy. It is principally herbivorous and bottom feeder, feeding on algae and aquatic plants. It is a large omnivore and extensively used in aquaculture. Fish diversity studies of two rivers of the northeastern godavari basin, india.
Among cyprinids, three species of imc, catla catla catla hamilton, rohu labeo rohita hamilton, and mrigal cirrhinus mrigala hamilton deserve higher economic importance due to customer preference. Pdf present study was carried out in harike wetland, an internationally recognized ramsar site 3108. Development of freshwater fish farming and poverty alleviation a case study from bangladesh pdf. The median lethal concentration lc 50 for the neem oil and neem nanoemulsion was 73. Till date sic, they have been only reported from the research centers in the south and north of iran, in addition to the locations listed above, froese and pauly 2019a list labeo catla as. Surjya kumar saikia fish biology and aquatic ecology laboratory, department of zoology, visva bharati university, santiniketan. Rohu labeo rohita is the most important among the three indian major carp species used in carp polyculture systems. Livers of both species showed higher concentrations of metals while muscles showed the. Effects of beta glucan as immunostimulant on labeo rohita. Overall concentration of the studied heavy metals was higher in cyprinus carpio as compared to labeo rohita.
A total of 240 samples of labeo rohita collected from the twelve 12 different ponds treated with 3 concentrations of n3 fatty acid 0. Nov 22, 2019 synopsis of biological data on rohu labeo rohita hamilton, 1822. Cultured aquatic species information programme labeo rohita hamilton, 1822 i. Some aspects of reproductive biology on effect of heavy metal pollution on the histopathological structure of gonads in labeo rohita hamiltonbuchanan from harike wetland, india onkar singh brraich and sulochana jangu department of zoology and environmental sciences, punjabi university patiala, india. Assessment of genetic variation of wild rohu labeo rohita. Nihar ranjan chattopadhyay, in induced fish breeding, 2017.
Labeo rohita takes small percentages of mud which contains organic matter and various salts. If the labeoninae are accepted as distinct, labeonini is the name of the tribe in this subfamily to which the labeos belong. Labeo rohita turkish journal of fisheries and aquatic sciences. Its food comprises crustaceous and insect larvae in early stages mookerjee et al. Pdf the potential use of citric acid for the improvement in.
Rating is available when the video has been rented. Fishery is a kind of industry which is concerned with the catching, processing or selling of fish, shellfish molluscs, each has a shell in two halves, used for food, e. Effect of nucleotide on growth, immune responses and. From this study it has been shown that fecundity of fish increases with increase in size, weight of fish and gonad weight. Understanding the regulation of skeletal muscle development is important to meet the increasing demand of indian major carp labeo rohita. Synopsis of biological data on rohu labeo rohita hamilton, 1822. Study on biometrics and biology of rohu, labeo rohita from. Males had higher haematological values than the females. Enzyme producing bacteria in the gastrointestinal tracts. N to evaluate the biometric parameters and biology of one of the economically important fish rohu, labeo rohita for a period of september 2016 february 2017.
Ultrastructure of egg membrane of rohu labeo rohita a. Effects of beta glucan as immunostimulant on labeo rohita challenged with a bacterial pathogen aeromonas hydrophila international journal of innovative studies in aquatic biology and fisheries ijisabf page 12. Labeo rohita hamilton, 1822 accepted name rohu animalia chordata actinopterygii cypriniformes cyprinidae labeo labeo rohita hamilton, 1822. Pdf the potential use of citric acid for the improvement. Determining the genetic structure is essential for developing conservation and stock improvement plans. Nchumbeni humtsoe obtained her phd degree from university of mumbai, india on the topic growth performance and biochemical composition of labeo rohita to feed containing katelysia opima and nerita species, and completed a course on professional planning and development programme in fisheries from cife, kolkata, india. In liver of labeo rohita the quantity of zn was, cr was, fe was, cu was, and pb was ugg, while in the muscles of this fish the storage of zn was, cr was, fe was, and cu was ugg. Labeo rohita, commonly called the rohu fish, is one of the typical freshwater bony fishes of india.
Studies on some aspects of biology and morphometry of the. Issn 23472677 length weight relationship and condition. Labeo rohita hamilton, 1822 species india biodiversity. Labeo rohita with a detail study on biology of the species to create a data base and to find out the maturity status and availability of mature fish in this internationally important ramsar site to sustain the stock in future. The present survey work has described 10 species of labeo sp. A study was conducted to determine the gonadosomatic index gsi and fecundity of labeo rohita during the period of march 20 to february 2014. Randomly amplified polymorphic dna analysis of four different populations of the indian major carp, labeo rohita hamilton m. C resulted in significantly enhanced expressions of jnk1 and erk1 genes. Some aspects of reproductive biology on effect of heavy metal. Determination of age of carps, labeo rohita by scale method. Labeo rohita is commercially important freshwater fish, commonly known as rohu. Gonadosomatic index and fecundity of an indian major carp.
Journal of environmental biology july, 2010 o n l i n e c o p y effect of surfactants on phosphatase level of fresh water fish labeo rohita r. Department of fisheries biology and genetics, bangladesh agricultural university, mymensingh2202, bangladesh. It contains the typical labeos in the subfamily labeoninae, which may not be a valid group, however, and is often included in the cyprininae as tribe labeonini. Among specific enzyme producing bacteria, proteolytic and cellulolytic bacteria were present. Labeo rohita hamilton is the most esteemed among the extensively, cul. Condition factor and lengthweight relationship of pond.
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