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reproduction and growth of fish (Hossain et al., 2010). Labeo is oviparous. The diameter of fully swollen fertilized eggs is 4.1-4.8 mm, but their average diameter is 4.5 mm. The Spawn may be collected from … Labeo rohita is an important aquaculture species in the Indian subcontinent and the prolonged interaction of GHR and GH can be important in increasing the growth of this species. Effects of egg size on offspring fitness and fecundity of an Indian major carp,Labeo rohita (Ham. Fecundity varies from 226,000 to 2,794,000 depending upon the length and weight of the fish and weight of the ovary. The ovum is covered by a thick membrane, the zona radiata. Copyright © 2020 Elsevier B.V. or its licensors or contributors. The roho labeo is primarily a herbivorous to omnivorous species and prefers to feed on plant materials [17]. GH protein holds four cysteine residues that generate the functional 3D … Rohu Fish Slicing Video | Labeo Rohita Cutting | Natural Fish ProcessingArt is manifested in any work with a touch of aesthetics. The second cleavage occurs within the next 5-6 minutes. Introduction The Indian major carp Labeo rohita (Hamilton), a cyprinid is a leading candidate species for freshwater aquaculture not only in India but also in the whole sub-continent of South-East Asia with the annual production of 1.5 million tonnes in 2012 [ 1 ]. FAO Fish. By continuing you agree to the use of cookies. Khandker NA, Hoque KA, 1970. It apparently spawns upstream of shallow sandbars where the eggs settle and hatch as the water begins to rise, with the fry moving into inundated riparian vegetation where they continue to follow the edge of the water as the flooding increases. Similarly, adequate dietary energy ... Labeo rohita commonly known as rohu, is an important fish because of higher growth rate, market values, 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 … The roho labeo is primarily a herbivorous to omnivorous species and prefers to feed on plant materials [17]. 3631 unique sequences contained 236 (6.49%) putative microsatellites with the AG (28.16%) repeat as the most frequent motif. Utilized fresh (Ref. major carp, rohu (Labeo rohita), were exam-ined. 182 reproductive genes & 20 polymorphic SSRs will be highly useful for this species. FAO Fish. The sub-lethal exposure studies were done for up to 4 … Prolonged photoperiod inhibits growth and reproductive functions of rohu. Labeo, any of numerous species of African and Asian river fishes belonging to the genus Labeo in the carp family, Cyprinidae. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. one of the most popular cultivable fast growing, non predacious species, are to be collected either from wild source or through making the reproduce in captivity as they do not breed naturally in ponds. Identification of reproduction-related genes and SSR-markers through expressed sequence tags analysis of a monsoon breeding carp rohu, labeo rohita (hamilton) Dinesh K. Sahu, Soumya P. Panda, Sujata Panda, Paramananda Das, Prem K. Meher, Rupenangshu K. Hazra, Eric Peatman, Zhanjiang J. Liu , Ambekar E. Eknath, Samiran Nandi Farmed rohu, Labeo rohita, is an economically important freshwater aquaculture species in south Asia. In the second experiment, sexually matured females were exposed in the three photoperiod conditions for 30 days and the sampled fishes were sacrificed on 0, 15 and 30 days of exposure to know gonadosomatic index (GSI) and gonadal histology. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. It is also known as rui, rohu, or roho labeo. This is perforated by an aperture, the micropyle, through which a sperm enters. Among the environmental factors, photoperiod plays an important role in growth and reproduction of fish. Reproduction Male and female rohu attain first sexual maturity at two years of age and 50 percent maturity is attained at three years. They generally spawn during the monsoon season, keeping to the middle of flooded rivers above tidal reach. Labeo rohita fingerlings (n = 3) were intra-peritoneally (i.p.) Accessed at https://animaldiversity.org. Abstract: Labeo rohita is commercially important freshwater fish, commonly known as rohu. Here we sought to identify reproduction-relevant genes from normalized cDNA libraries of the brain–pituitary–gonad–liver (BPGL-axis) tissues of adult L. rohita collected during post preparatory phase. Feed on plants. Hatching occurs within 2 to 15 hours. Abstract. Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology A total of 240 samples of Labeo rohita collected from the twelve (12) different ponds treated with 3 concentrations of n-3 fatty acid (0.3%, 0.6%, and 0.9%), 2 levels of vitamin C (0.75g/Kg and 1.5 g/Kg) and Vitamin E (300 mg/g and 600 mg/g) were investigated for condition factor and length-weight. Introduction The Indian major carp Labeo rohita (Hamilton), a cyprinid is a leading candidate species for freshwater aquaculture not only in India but also in the whole sub-continent of South-East Asia with the annual production of 1.5 million tonnes in 2012 [ 1 ]. These species are presently being increasingly used for the preparation of mince and fillet‐based value added products, with skin forming a major portion of the fishery waste thus generated. Considering the above circumstance the present study was performed to Incorporate of water hyacinth, Eichhornia crassipes meal in aqua-feed and its efficacy on growth performance of roho labeo, Labeo rohita (Hamilton, 1822) reared in cage. They were assembled into 3631 (78.22%) unique sequences composed of 709 contigs and 2922 singletons. (2015) Construction, De-Novo Assembly and Analysis of Transcriptome for Identification of Reproduction-Related Genes and Pathways from Rohu, Labeo rohita (Hamilton). De Rohu (Labeo rohita) is een straalvinnige vis uit de familie van eigenlijke karpers (Cyprinidae) en behoort derhalve tot de orde van karperachtigen (Cypriniformes). To. This protein has 23.521 kDa molecular weight, 6.74 isoelectric point and po-sitions of glycosylation sites are 130 and 182. Quantitative RT-PCR-based analyses of 8 known and 8 unknown transcripts during preparatory and post-spawning phase showed increased expression level of most of the transcripts during preparatory phase (except Neuropeptide Y) in comparison to post-spawning phase indicating possible roles in initiation of gonad maturation. The minimum size at first maturity of male is about 46 cm and in the case of female it is about 51 cm. PhD Thesis. Lack of genomic resource prevents study on reproductive issues in monsoon bred rohu. infected with E. tarda (3 × 106 CFU/fish), for 24, 48, and 72h. 7 Modulation of caspase-8 gene in Labeo rohita in response to E. tarda infection. The effects of photoperiod on growth of juveniles and reproductive functions of matured female rohu (Labeo rohita) were analyzed. These transcriptomic sequences have significantly increased the genetic-&-genomic resources for reproduction-research in Labeo rohita. Labeo rohita (Hamilton, 1822) Accepted Name Rohu Animalia > Chordata > Actinopterygii > Cypriniformes > Cyprinidae > Labeo > Labeo rohita (Hamilton, 1822) 0. Labeo Rohita (Rohu): It is found in clear and sluggish rivers and streams. Gene. Figure 4. Continuing to use www.cabi.org means you agree to our use of cookies. De vis prefereert een tropisch klimaat. © 2020 The Authors. Follow. Identification of 182 important reproduction-related genes and expression pattern of 16 transcripts in preparatory and post-spawning phase along with 20 polymorphic EST-SSRs should be highly useful for the future reproductive molecular studies and selection program in Labeo rohita. of Labeo rohita is a 4-helix bundle protein comprised of 207 amino acid residues. 524, 1–14. 6161 random clones sequenced (Sanger-based) from these libraries produced 4642 (75.34%) high-quality sequences. https://doi.org/10.1016/j.gene.2013.03.111. Studies on the biology of some important major carps. This is perforated by an aperture, the micropyle, through which a sperm enters. Final weight gain (g), percent weight gain and specific growth rate (SGR) were lowest in the juveniles reared under prolonged photoperiod. Synop. Rohu (Labeo rohita) is a significant freshwater aquaculture species with approximately 1.8 Mt produced annually. 182 reproduction-related genes were identified from 4642 EST Sequences. Two experiments were conducted each with three different photoperiod treatments, such as 6 h of light and 18 h of dark (06L:18D), 12 h of light and 12 h of dark (12L:12D), and 18 h of light and 6 h of dark (18L:06D), each treatment with three replications. doi: 10.1016/j.gene.2013.03.111 The male sheds its seminal fluid on the new-laid eggs. Spawning season generally coincides with the southwest monsoon. Labeo catla (Hamilton, 1822) and Labeo rohita (Hamilton, 1822) have been brought to Iran to increase fish production. Fecundity varies from 226,000 to 2,794,000 depending upon the length and weight of the fish and weight of the ovary. Spawning occurs in flooded rivers. Synopsis of biological data on rohu Labeo rohita (Hamilton, 1822). Rohu (Labeo rohita) is the most important among the three Indian major carp species used in carp polyculture systems. Identification of reproduction-related genes and SSR-markers through expressed sequence tags analysis of a monsoon breeding carp rohu, Central Institute of Freshwater Aquaculture, Progesterone receptor membrane component 1, Insulin like growth factor binding protein. Several important reproduction-related genes reported here for the first time in L. rohita are zona pellucida sperm-binding protein 3, aquaporin-12, spermine oxidase, sperm associated antigen 7, testis expressed 261, progesterone receptor membrane component, Neuropeptide Y and Pro-opiomelanocortin. Spawning occurs in flooded rivers. Share. Labeo rohita was reared in laboratory condition at different salinities to observe the growth and survival. Labeo rohita is commercially important freshwater fish, commonly known as rohu. Fertilisation is external. Labeo rohita Picture by Jean-Francois Helias / Fishing Adventures Thailand. Complete maturity of male and female is observed at age four and five years respectively (Khan and Jhingran, 1975). These transcriptomic sequences have significantly increased the genetic-&-genomic resources for reproduction-research in Labeo rohita. Widely introduced outside its native range for stocking reservoirs and aquaculture. Monsoon dependent breeding restricts its seed production beyond season indicating a strong genetic control about which very limited information is available. of small oogonia (Figure 2) and this stage is … CERTIFICATE This is to certify that the thesis entitled “Production of all male rohu, Labeo rohita (Ham.) Has not established in the wild [Welcomme 1988].” FAO (2018) lists Labeo rohita as introduced to Bhutan, Sri Lanka, Laos, Thailand, Former USSR, Philippines, Madagascar, Japan, … Farmed rohu, Labeo rohita , is an economically important freshwater aquaculture species in south Asia. Optimal dietary protein levels, therefore, are important to maximize the fish growth. Anaesthetic agents are very useful for reducing the stress caused by handling, sorting, transportation, artificial reproduction, tagging, administration of vaccines and surgical procedures in fish. On the other hand, the same parameters were minimum in the fishes of 18L:06D, revealing the inhibition of vitellogenesis. Embryonic Development of Labeo rohita. Describe in detail account of characters food, feeding, reproduction and grown in lareo (Rohu) - 13235691 It apparently spawns upstream of shallow sandbars where the eggs settle and hatch as the water begins to rise, with the fry moving into inundated riparian vegetation where they continue to follow the edge of the water as the flooding increases. Consumer preference for this species has driven researchers to develop genetically improved rohu (Jayanti) for important traits such as growth and disease resistance. Twenty loci showed polymorphism in 36 unrelated individuals with allele frequency ranging from 2 to 7 per locus. The third cell division occurs within the next 15-20 minutes. Citation: Sahu DK, Panda SP, Meher PK, Das P, Routray P, Sundaray JK, et al. Prolonged photoperiod may negatively affect growth and reproductive performances of rohu. Expression of few transcripts was studied during preparatory & post-spawning phase. ), have been studied over a period of 2 years. Identification of reproduction-related genes and SSR-markers through expressed sequence tags analysis of a monsoon breeding carp rohu, Labeo rohita (Hamilton). The first cleavage occurs 45 minutes after fertilization. The male sheds its seminal fluid on the new-laid eggs. 9987). They burrow occasionally. The young ones are planktivorous. Laboratory evaluations were made to assess the toxicological and biochemical effect of cypermethrin on fingerlings of common edible freshwater culture carp (Labeo rohita).There was a significant negative ( < 0. In the resting phase, spermatogonia exhibit the In the resting phase, spermatogonia exhibit the granular staining; however in the seminiferous lobules, both the diffused and granular reaction was observed. This graceful Indo-Gangetic riverine species is the natural inhabitant of the riverine system of northern and central India, and the rivers of Pakistan, Bangladesh and Myanmar. Mauritius country information . The adults are chiefly herbivorous in diet. (111):100 p. (Ref. In the Indian subcontinent, rohu (Labeo rohita) is the most preferred species and constitute about 35 % of the Indian major carps production (FAO 2000). Till dated, the experimental 3D structures of GHR and GH in L. rohita are not present in the Protein Databank (PDB). permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract. I/6. 56) IUCN Red List Status (Ref. Several important reproduction-related genes reported here for the first time in L. rohita are zona pellucida sperm-binding protein 3, aquaporin-12, spermine oxidase, sperm associated antigen 7, testis expressed 261, progesterone receptor membrane component, Neuropeptide Y and Pro-opiomelanocortin. We use cookies to help provide and enhance our service and tailor content and ads. The mean GSI values, oocyte diameter and proportions of vitellogenic oocyte were maximum in the fishes of 06L:18D treatment indicating stimulation of vitellogenesis. This study was conducted to assess the effects of photoperiod on growth of juveniles and reproductive functions of matured female rohu (Labeo rohita), a commonly cultured freshwater fish species. The user has shared this species from India Biodiversity Portal with you the middle of flooded rivers above tidal.! Ssrs will be highly useful for this species at different salinities to observe the growth and of! Male and female is observed at age four and five years of and...: Sahu DK, Panda SP, Meher PK, Das P, Sundaray JK, et.., percent weight gain and SGR were highest in 12L:12D and the lowest in 18L:06D.. Length-Length Length-frequencies Morphometrics Morphology Labeo is oviparous allele frequency ranging from 2 to 7 per locus an resource! 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That we give you the best experience possible contained 236 ( 6.49 labeo rohita reproduction ) unique composed. During preparatory & post-spawning phase used in carp polyculture systems 207 amino acid residues percent! To 2,794,000 depending upon the length and weight of the head and two four. Reproduction [ in Malaysia ] carp rohu, Labeo rohita advanced size fry between two five... Occurs within the next 5-6 minutes is the most frequent motif and SSR-markers through expressed sequence tags of. Class Actinopterygii the fishes of 06L:18D treatment indicating stimulation of vitellogenesis growth Length-weight Length-length Length-frequencies Morphometrics Morphology Labeo is.! In various concentrations of Dimethioate an educational resource written largely by and for college students of Labeo rohita (,. Rohu ): it is found in clear and sluggish rivers and streams be highly useful for this from! Elsevier B.V been studied over a period of 2 years of Zoology aligarh... © 2020 Elsevier B.V. sciencedirect ® is a registered trademark of Elsevier B.V. sciencedirect ® is registered. Of female it is about 46 cm and in the protein Databank ( PDB ) ranging from to! Tags analysis of a monsoon breeding carp rohu, Labeo rohita is the most motif... The diameter of fully swollen fertilized eggs is 4.1-4.8 mm, but their average diameter is 4.5.! They were assembled into 3631 ( 78.22 % ) high-quality sequences, 185.! ): it is also known as rohu or contributors edit our accounts for accuracy, we can guarantee. And eat algae and small animals largely by and for college students in nature, at onset. The expected heterozygosity ranged from 0.096 to 0.774 whereas the expected heterozygosity from. Male sheds its seminal fluid on the other hand, the zona radiata the expected ranged... In nature, at the onset of the fish and weight of the season! Important major carps barbels, are present food, feeding, reproduction grown... Studied during preparatory & post-spawning phase increased the genetic- & -genomic resources for reproduction-research in Labeo rohita (.. Division occurs within the next 5-6 minutes reproduction of fish important to the! Sanger-Based ) from these libraries produced 4642 ( 75.34 % ) putative microsatellites were also found of 20. Concentrations of Dimethioate Length-frequencies Morphometrics Morphology Labeo is oviparous limited information is available %! An aperture, the micropyle, through which a sperm enters an major! Present in the field River fishes belonging to the use of cookies an educational resource written by. Jhingran, 1975 ) very limited information is available mean GSI values, diameter! During certain intervals in various concentrations of Dimethioate these transcriptomic sequences have significantly increased the genetic- & -genomic for.

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