Some aspects of reproductive biology on effect of heavy metal. Among specific enzyme producing bacteria, proteolytic and cellulolytic bacteria were present. Pdf studies on the feeding habits of labeo rohita ham. Note ultrastructure of egg membrane of rohu labeo rohita. Spawns in middle reaches of rivers, where flood water spreads in more or less limpid shallows over fertile flats, well above tidal reaches. The haematology of rohu, labeo rohita, journal of fish. As has been recorded, initially six interspecific and intergeneric hybrids have been developed through hybridization among the four species of indian major carp imc, namely labeo rohita rohu, labeo calbasu calbasu, labeo bata bata, and labeo gonius gonius in the following combinations. Assessment of genetic variation of wild rohu 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. Some aspects of reproductive biology on effect of heavy.
The median lethal concentration lc 50 for the neem oil and neem nanoemulsion was 73. Pdf study on biometrics and biology of rohu, labeo rohita from. The fecundity of the rohu, labeo rohita hamilton springerlink. Effects of beta glucan as immunostimulant on labeo rohita. Acute toxicity of detergent to indian major carps catla. If the labeoninae are accepted as distinct, labeonini is the name of the tribe in this subfamily to which the labeos belong. Labeo rohita hamilton, 1822 accepted name rohu animalia chordata actinopterygii cypriniformes cyprinidae labeo labeo rohita hamilton, 1822. Heterosis analysis in straincrossed hybrid rohu labeo rohita through.
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. 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. We examined and compared heavy metals bioaccumulation in cyprinus carpio and labeo rohita netted from sardaryab, a tributary of river kabul. Department of zoology, aligarh muslim university, 185 pp. 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. Nov 22, 2019 synopsis of biological data on rohu labeo rohita hamilton, 1822. Labeo is bottom feeder and prefers to feed on plant matter including decaying vegetation. Feeding ecology of the freshwater fish rohu labeo rohita hamilton 1822.
Its food comprises crustaceous and insect larvae in early stages mookerjee et al. Feeding ecology of the freshwater fish rohu labeo rohita. Presence of several biochemical constituents in neem makes it an efficient antimicrobial agent for pathogenic diseases. 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. The variations in haematological parameters in relation to the size and weight of the fish were also examined. They are found in freshwater habitats in the tropics and subtropics of africa and asia. Morphological description and taxonomic account of labeo. Materials and methods fish samples were collected from landing sites situated adjacent to the harike wetland for. Rating is available when the video has been rented. Fish are aquatic, cold blooded and craniate vertebrates belonging to the super class pisces under phylum chordata. Growth performance and biochemical composition of labeo. Fish diversity studies of two rivers of the northeastern godavari basin, india. Enzyme producing bacteria in the gastrointestinal tracts of.
From this study it has been shown that fecundity of fish increases with increase in size, weight of fish and gonad weight. A catlarohu hybrid produced by hypophysation was found to be intermediate in general appearance to the parent species. Labeo rohita, lengthweight relationship, condition factor. 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. Study on biometrics and biology of rohu, labeo rohita from. Pdf present study was carried out in harike wetland, an internationally recognized ramsar site 3108.
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. Haematocrit values, haemoglobin concentration, erythrocyte counts, leucocyte counts, erythrocyte sedimentation rate and clotting time of labeo rohita were determined. Labeo rohita is commercially important freshwater fish, commonly known as rohu. 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. Rohu labeo rohita is the most important among the three indian major carp species used in carp polyculture systems. Characterization and inductive expression analysis of. Gonadosomatic index and fecundity of an indian major carp. Lengthweight relationships of the indian major carp, labeo rohita. Ultrastructure of egg membrane of rohu labeo rohita a. Labeo rohita or its common name as rohu is a freshwater fish species which originated in india and distributed in pakistan and burma. Materials and methods the present study was carried out during sept. Study on antimicrobial potential of neem oil nanoemulsion. Amylolytic, proteolytic and cellulolytic bacteria were detected in the fish gut. The four loci were polymorphic p 95 in all the populations.
The rohu, rui, or roho labeo labeo rohita is a species of fish of the carp family, found in rivers. It is principally herbivorous and bottom feeder, feeding on algae and aquatic plants. Enzyme producing bacteria in the gastrointestinal tracts. This report describes structural and functional properties of ifn. It is a large omnivore and extensively used in aquaculture. Myogenic regulatory factors mrfs along with myocyte specific enhancer factor 2 mef2 play the pivotal role in the determination and differentiation of skeletal muscle. Effect of nucleotide on growth, immune responses and. It is the commonest cap in the plains of india, except in the south. Pdf the potential use of citric acid for the improvement. Understanding the regulation of skeletal muscle development is important to meet the increasing demand of indian major carp labeo rohita.
These observed parameters were useful to evaluate the wellbeing of labeo rohita population in the water bodies and provided useful information on fish biology for fisheries management scientifically. Surjya kumar saikia fish biology and aquatic ecology laboratory, department of zoology, visva bharati university, santiniketan. Studies on some aspects of biology and morphometry of the intergeneric hybrid, catla catla hamil ton x labeo rohita hamilton produced by hypophysation. Issn 23472677 length weight relationship and condition.
Labeo rohita takes small percentages of mud which contains organic matter and various salts. Nihar ranjan chattopadhyay, in induced fish breeding, 2017. 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. Randomly amplified polymorphic dna analysis of four different populations of the indian major carp, labeo rohita hamilton m. Interspecific and intergeneric hybrids among carps and also with common carp cyprinus carpio var.
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. Lal national bureau of fish genetic resources, telibagh, lucknow 226 002, india nbfgr cochin unit, cmfri campus, cochin 682 014 abstract the fine structure of the egg envelope and micropyle of unfertilised spawned. Data on mortality % were analyzed using grafpad software based on finneys probit statistical method. 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 catla hamilton, 1822 and labeo rohita hamilton, 1822 have been brought to iran to increase fish production. Synopsis of biological data on rohu labeo rohita food and. Labeo rohita, commonly called the rohu fish, is one of the typical freshwater bony fishes of india. Islam department of fisheries biology and genetics, bangladesh agricultural university, mymensingh, bangladesh. Studies on some aspects of biology and morphometry of the. Determining the genetic structure is essential for developing conservation and stock improvement plans. Labeo rohita is found in tropical and temperate regions. Livers of both species showed higher concentrations of metals while muscles showed the. Studies on the biology of some important major carps. The majority of skeletal muscle genes require both mrfs and mef2 family members to.
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. Synopsis of biological data on rohu labeo rohita hamilton, 1822. 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 introduced. 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. 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. 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. C resulted in significantly enhanced expressions of jnk1 and erk1 genes. 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. Determination of age of carps, labeo rohita by scale method. Labeo rohita rohu is commonly found in freshwater ponds, lakes, rivers and streams. 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.
Department of fisheries biology and genetics, bangladesh agricultural university, mymensingh, bangladesh. A study was conducted to determine the gonadosomatic index gsi and fecundity of labeo rohita during the period of march 20 to february 2014. 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. Six dinucleotide microsatellite loci lr3, lr12, lr14b, lr21, lr24. If the labeonini are considered a tribe of the cyprininae, the labeos are placed in subtribe labeoina. Genetic diversity analysis of labeo rohita hamilton, 1822. Males had higher haematological values than the females. 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. 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.
Fecundity estimations from sixtyfive specimens ofl. By using atomic absorption spectrometry we assessed different organs including livers, gills, and muscles. 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. Labeo rohita hamilton, 1822 species india biodiversity. Development of freshwater fish farming and poverty alleviation a case study from bangladesh pdf. The haematology of rohu, labeo rohita siddiqui 1979. Labeo rohita hamilton is the most esteemed among the extensively, cul.
Labeo is a genus of carps in the family cyprinidae. External morphology of rohu fish with diagram chordata. Department of fisheries biology and genetics, bangladesh agricultural university, mymensingh2202, bangladesh. Labeo rohita turkish journal of fisheries and aquatic sciences. Acute toxicity of detergent to indian major carps catla catla. Certificate this is to certify that the thesis entitled production of all male rohu, labeo rohita ham. The present survey work has described 10 species of labeo sp.
It breathes by means of gills and also frequently comes to water surface for gulping air into the air bladder. Condition factor and lengthweight relationship of pond. Labeo rohita was originally described as cyprinus rohita hamilton 1822. Metals studied were chromium, iron, zinc, lead, and copper. Statistically significant relations were found to exist between the. The rohu, rui, or roho labeo labeo rohita is a species of fish of the carp family, found in rivers in south asia. 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. Pdf the potential use of citric acid for the improvement in. Expression pattern of myogenic regulatory transcription. Randomly amplified polymorphic dna analysis of four. Randomly amplified polymorphic dna analysis of four different. 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. Overall concentration of the studied heavy metals was higher in cyprinus carpio as compared to labeo rohita.
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