Global Journal of Fisheries Science最新文献

{"title":"Comparative study of physico-chemical parameters and microbial load of aqua media of different receptacles used in culturing Clarias gariepinus","authors":"P. A. Okeke, K. E. Amuneke, O. Evulobi","doi":"10.31248/gjfs2022.039","DOIUrl":"https://doi.org/10.31248/gjfs2022.039","url":null,"abstract":"The physico-chemical parameters cum microbial loads of water from earthen, concrete and collapsible plastic tank, tagged A, B and C respectively, were used to culture Clarias gariepinus at the Integrated Organic Fish Farm of the Department of Fisheries and Aquaculture, Nnamdi Azikiwe University, Awka, Anambra State, Nigeria, which lasted for sixteen (16) weeks. Water samples were collected aseptically every week throughout the duration of the research. The mean values of physico-chemical parameters using analysis of variance (ANOVA), showed that there was no significant difference (p>0.05) in treatments A, B and C. The results showed that earthen pond recorded the highest in Biological Dissolved Oxygen (BOD) 3.67±0.417 mg/L, Sulphate 4.55±0.016 mg/L, Nitrate 3.12±0.023mg/L and Magnesium 1.28±0.042 mg/L, followed by B and C, while concrete pond recorded highest mean values in temperature 28.17±0.234°C, pH 7.10±0.252, alkalinity 31.17±0.189 mg/L, calcium 0.53±0.O27 mg/L, and potassium 11.68±0.016 mg/L followed by A and C. and collapsible plastic tank recorded highest mean values in dissolved oxygen DO 9.83±0.240 mg/L, and transparency 60.67±0.667 cm/L. The physico-chemical parameters were all within the accepted standard range by the World Health Organization (WHO) and Federal Emergency Protection Agency for culturing fish. The Least Significant Difference (LSD) showed that there were significant differences (p<0.05) between the bacteria load of water samples from A and C receptacles. It also, showed that there was no significant difference (p>0.05) between bacteria load of water samples from A and B receptacles. Water sample from A, had the highest CFU count of Escherichia coli, Staphylococcus sp., Streptococcus faecalis, Proteus sp, Clostridium perfringens and Pseudomonas aeruginosa of 0.62×107, followed by B water samples with Streptococcus faecalis, Staphylococcus sp. and Escherichia coli of 1.16 × 107 and C water samples E. coli and Staphylococcus sp. with count of 1.78 × 107. Proper management of culturing media in different receptacles should be monitored to reduce microbial load in Clarias gariepinus, to avoid fish mortality and ill-health to human being when consumed.","PeriodicalId":136379,"journal":{"name":"Global Journal of Fisheries Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131208651","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":"Growth performance and nutrient utilisation of Clarias gariepinus fed on sweet orange peels (Citrus sinensis) as carbohydrate source","authors":"J. Yusuf, J. Cheikyula, P. A. Annune","doi":"10.31248/gjfs2022.035","DOIUrl":"https://doi.org/10.31248/gjfs2022.035","url":null,"abstract":"The effect of substitution of maize meal with orange peel in the diet of Clarias gariepinus was investigated. Proximate composition, anti-nutritional content of differently processed orange peels and their effects on the growth of Clarias gariepinus were investigated. Soaked sweet orange peel meal was used in the formulation of the experimental diet and replaced maize at 25, 50, 75, and 100% inclusions respectively while the control diet was at 0% SOPMs replacement. The experiment consists of five treatments (1, 2, 3, 4 and 5) with two replicates in a completely randomized design (CRD). Two feeding trials lasted for a period of 8 weeks (56 days) and was carried out in a concrete experimental pond measuring 2 m x 1 m x 0.5 m. Two hundred Clarias gariepinus fingerlings, 10 g average weight were randomly distributed at 40 fish per replicate. Growth responses were checked and recorded weekly with a sensitive weighing balance (Mettler 5000) to the nearest grams after which feed quantity was adjusted. Fish were fed experimental diet twice daily (08:00 am and 05:00 pm) at 5% body weight, pond water was changed weekly during weight recording and the water quality parameters were monitored. The results of the proximate analysis of orange peel meals under different processing methods indicated that moisture content was highest in sundried peels (6.74) and lowest in cold-soaked peels (5.8%). Lipid content was highest in boiled peels (8.47) and lowest in fermented peels (7.71%). Protein content was highest in boiled peels (7.43) and lowest in sundried peels (6.40%). The highest NFE was recorded in the sundried peels (60.90) while lowest NFE value was recorded in the fermented (54.38). The anti-nutritional factors determined from the various processing method showed that boiling was more effective in reducing tannin (46.4% reduction), phytic acid (46.5% reduction), oxalate (54% reduction) and was least effective in reducing saponin (20% reduction). Fermentation was least effective in ANF reduction, tannin (21%) and phytic acid (15%); cold-soaking was more effective in saponin reduction (46.5%). Result obtained revealed that there was no adverse effects on the growth performance of the fish fed orange peel meals at 50% inclusion, thus sweet orange peel meals can replace maize up to 50% level of inclusion in the diet of Clarias gariepinus fingerlings without adverse effect with a corresponding SGR of (2.64±0.00). Apparent net protein utilization differed among the treatments (p<0.05).","PeriodicalId":136379,"journal":{"name":"Global Journal of Fisheries Science","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114573880","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":"A comparative study to evaluate the effect of two commercial diets (Aqualis and Topfeed) on the growth of African catfish Clarias gariepinus","authors":"O. Odeyemi, T. S. Awopetu","doi":"10.31248/gjfs2022.038","DOIUrl":"https://doi.org/10.31248/gjfs2022.038","url":null,"abstract":"The feed trial was carried out in African Inland Fish Farming Limited, Ibeju-lekki Lagos State, Nigeria to assess the growth of Clarias gariepinus fed with two commercial diets. Using a complete randomized design and six treatments separated into T1 and T2, the feed trial was carried out to assess the growth performance of two commercial fish feeds (Aqualis and Topfeed) on Clarias gariepinus for a period of 55 days using circular tarpaulin tanks with a capacity volume of 28.3 m3 marked DS1, DS2, ES1, ES3, ES4, and FS1 stocked with 11,250/tank juveniles with an initial weight of 8.0 g were stocked in each tank. Fish in units ES3, ES4, and FS1 were fed Topfeed whereas fish in units DS1, DS2, and ES1 were fed Aqualis feed. Feeding was done twice daily. All physicochemical parameters were assessed using the Sera Aqua-Test Kit and the dry matter of the two commercial diets underwent chemical analysis. The growth performance parameters revealed that the final mean weight (g), mean weight gain (MWG) (g), specific growth rate (SGR), and survival rate were not significantly different between the two feeds (p>0.05). The results demonstrated that Topfeed outperformed Aqualis feed with a higher survival rate and a feed conversion ratio (FCR) value of (p>0.05). Also, the proximate composition revealed no significant differences (p>0.05) between the two feeds. Based on the findings, it can be said that Topfeed outperformed Aqualis feed for raising C. gariepinus.","PeriodicalId":136379,"journal":{"name":"Global Journal of Fisheries Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134405970","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":"Effect of varying proportions of the daily feed rations on the performance of Juveniles of Clarias gariepinus (Burchell, 1882)","authors":"Kelvin Agha Ndifor, G. Nkongho, Fai Patricia Bi Asanga, Hilaire Marcel Ebobisse, Roland Ndi Mbongko, Judith G Makombu","doi":"10.31248/gjfs2022.037","DOIUrl":"https://doi.org/10.31248/gjfs2022.037","url":null,"abstract":"African catfish Clarias gariepinus (Burchell, 1882) constitutes a bulk of farmed freshwater fish, particularly in Africa. Its optimal production relies on an optimal feeding regime as feed covers about 50% of operation cost. Studies on feeding regimes have mostly been on feeding frequency and the daily required rations. This study was therefore designed to evaluate the impact of varied proportions of normal daily rations on the performance of C. gariepinus juveniles. Clarias gariepinus Juveniles of 17.6 ± 3.7 g were stocked at a density of 15 juveniles per 50 L of water in 80 L plastic tanks and cultured indoors for 42 days. They were fed a standard specific feed at 5% total biomass three times daily (8:00, 13:00 and 18:00). Treatment 1 received 33.33% of its daily ration at each feeding period, while treatments 2 and 3 received (50%, 25% and 25%) and (25%, 25% and 50%) of the daily rations at 8:00, 13:00 and 18:00, respectively. Fish biomass and survival rate were determined weekly and individual fish weights and lengths were determined at the end of the experiment. Water was aerated continuously and half the volume was renewed daily; temperature and pH were monitored twice daily. The specific growth rate, weight and length gained were best in treatment 3 although not significantly different (p>0.05) among treatments. However, feed conversion ratio and condition factor in treatment 3 were significantly (p<0.05) better when compared to treatments 1 and 2 although temperature and pH in the different treatments were not significantly different (p>0.05). The estimated investment cost was 3891, 4136 and 3907 FCFA, with profit index of 0.95, 0.87 and 1.09 in treatments 1, 2 and 3, respectively. Therefore, administering about 50% of the daily ration in the evening as was the case in treatment 3 is more profitable in the culture of C. gariepinus juveniles.","PeriodicalId":136379,"journal":{"name":"Global Journal of Fisheries Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129160860","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":"Egg development stages and fecundity of Atya gabonensis (Giebel, 1875) (Crustacea: Atyidae) from three different locations in Nigeria","authors":"J. Cheikyula, C. Obetta, R. A. Obande, S. G. Solomon","doi":"10.31248/gjfs2022.033","DOIUrl":"https://doi.org/10.31248/gjfs2022.033","url":null,"abstract":"Comparative studies of fecundity and stages of egg development of Atya gabonensis in River Benue at Makurdi, River Niger, Jebba and the confluence of the two rivers at Ganaja was done from January 2016 to December 2017. A total of 300 berried females were collected with the aid of fishermen and transported in ice box to the laboratory for further studies. Species identification was done using keys of Powell (1982). The sexes were determined using morphological features such as appendix masculina, reproductive chamber and numb. Morphological measurements were done according to Adite et al. (2013). Body weight was taken with a top loading electronic Metler balance. Fecundity was estimated by gravimetric method. Egg development stages were determined using external features of the eggs. The number of eggs varied from 550-36,673 in Jebba, 300-24,532 in Ganja and 4,300-8,600 in Makudi. Positive correlation was observed between fecundity and morphometric parameters in all the locations. All the ovigerous females in Makurdi, 14% in Ganaja and 17% in Jebba were in stage 1. Ganaja and Jebba had 39 and 35% respectively in stage 2. Stage 3 was 26 and 12% from Ganaja and Jebba respectively. Stage 4 had 10% from Ganaja and 17% from Jebba while stage 5 had 11% from Ganaja and 19% from Jebba. It was concluded that A. gabonensis is fecund and could make an excellent candidate for culture.","PeriodicalId":136379,"journal":{"name":"Global Journal of Fisheries Science","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114896908","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":"Parasitic incidence in cultured and wild Nile tilapia (Oreochromis niloticus) in Makurdi, Benue State, Nigeria","authors":"S. Omeji, M. Adadu, O. D. Kolndadacha","doi":"10.31248/gjfs2022.036","DOIUrl":"https://doi.org/10.31248/gjfs2022.036","url":null,"abstract":"Parasitic incidence in cultured and wild Nile tilapia (Oreochromis niloticus) in Makurdi, Benue State, Nigeria was investigated by standard parasitological techniques using 305 samples comprising 146 and 159 Oreochromis niloticus randomly purchased from the cultured (Ponds) and wild (Lower River Benue) environments, respectively. Nine (9) parasite species belonging to two (2) species each of crustacean (Argulus spp. and Ergasilus spp.), protozoa (Trichodina spp. and Ichyophthyirius multifilis), cestode (Ligula intestinalis and Bothriocephalus spp.) and a species of monogenea (Cichlidogyrus spp.), digenea (Clinostomum spp.) and nematode (Camallanus spp.) were recovered from the examined fish. All the parasites were present in both environments with the exception of I. multifilis that was recovered from the wild O. niloticus. Out of the 146 and 159 samples of cultured and wild O. niloticus, 81 and 62 samples each were infested with 128 and 93 ectoparasites and endoparasites, respectively. The overall prevalence (55.48%), mean intensity (1.58) and abundance (0.88) were higher for cultured O. niloticus compared to the overall prevalence (38.99%), mean intensity (1.50) and abundance (0.58) recorded for the wild O. niloticus. The prevalence and intensity of infection in most of the parasite species were higher (9.59 and 1.50, 7.53 and 1.36, 2.74 and 1.25, 2.05 and 3.33, 5.48 and 1.88, 2.05 and 2.33, respectively from the cultured environment; 6.92 and 1.45, 6.29 and 1.30, 1.26 and 0.50, 0.63 and 2.00, 2.52 and 1.25, 1.26 and 4.00, 3.14 and 1.60, 1.26 and 2.50, respectively from the wild) in females than the males (7.53 and 1.18, 5.48 and 1.13, 1.37 and 1.50, 1.37 and 3.00, 3.42 and 1.60, 0.68 and 2.00, respectively from the cultured environment; 6.29 and 1.20, 4.40 and 1.29, 0.63 and 3.00, 0.00 and 0.00, 0.00 and 0.00, 0.63 and 3.00, 2.52 and 1.25, 0.00 and 0.00, respectively from the wild). Ectoparasites of cultured and wild O. niloticus were more in the gills (114) compared to the skin (25) while endoparasites of cultured and wild samples of O. niloticus were more in the intestine (48) compared to the stomach (40). Parasite prevalence was higher in the bigger fish samples compared to the smaller ones.","PeriodicalId":136379,"journal":{"name":"Global Journal of Fisheries Science","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114237189","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":"Cost benefit analysis and efficacy of smoking technologies in removing moisture content of Mormyrus caschive and Oreochromis niloticus in Terekeka-South Sudan","authors":"Borodi Charles Mondo, P. Akoll, M. Masette","doi":"10.31248/gjfs2021.028","DOIUrl":"https://doi.org/10.31248/gjfs2021.028","url":null,"abstract":"Efficacy, cost and benefit of smoking fish using pit and chorkor technologies were investigated to inform decisions on economic sustainability and efficiency of the processing technologies in removing moisture content for quality assurance and extension of fish shelf-life. A total of 72 fresh fish; 36 (120 kg) Mormyrus caschive (Family: Mormyridae; common name: Elephant snout) and 36 (118 kg) Oreochromis niloticus (Family: Cichlidae; common name: Nile Tilapia) were bought from Sur-num fish landing site. From the procured fish, 12 (38 kg) samples were iced and used for fish moisture content analysis while the remaining 60 samples were divided into two batches for pit and chorkor smoking. Each batch contained 30 fresh fish samples with a total weight of 100 kg. Field experimental smoking was conducted twice in a completely randomized design. Moisture content in fish samples was determined using weight reduction method and cost benefit analysis using market price survey and interviews. Results revealed chorkor oven significantly reduce moisture content in M. caschive (10.0±0.83%) and O. niloticus (15.1±0.48%) more than pit kiln (15.3±0.57% and 17.3±0.42%), respectively. Although chorkor oven construction was expensive, the economic return was higher than for pit kiln due to short smoking time (6-8 hours, and twice in 24 hours) and utilization of small quantity of firewood (4 bundles/round). Chorkor oven is therefore, an efficient and economically viable technology for smoking fish. The study recommends its adoption for artisanal fisheries in South Sudan.","PeriodicalId":136379,"journal":{"name":"Global Journal of Fisheries Science","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127841940","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":"Income inequality and producers share among fish farming households in Kaduna metropolis, Kaduna State, Nigeria","authors":"O. Balogun, M. Usman, O. Aasa, C. O. Akure, A. Afolabi, O. Nwahia, F. I. Agbomaka","doi":"10.31248/gjfs2021.030","DOIUrl":"https://doi.org/10.31248/gjfs2021.030","url":null,"abstract":"The study examined inequality and farmers share among fish farmers in Kaduna metropolis. Multistage sampling procedure was employed to select fish producers and marketers. Primary data was collected with the use of questionnaire administered to eighty producers. Descriptive statistics, net farm income and measures of profitability such as return per capital invested, marketing margin, farmer’s share and Gini index were used to analyze the data. The enterprise profit was estimated at N235,500.00 and a return per capital invested of 0.62. The index of income variability (Gini index) was 53 percent. Male headed households have slightly lower income inequality than their female counterparts. The challenges confronting the enterprise include poor access to credit, high cost of production and poor processing facilities. The study recommends provision of credit facilities, stable and affordable electricity to fish farmers to further enhance their business.","PeriodicalId":136379,"journal":{"name":"Global Journal of Fisheries Science","volume":"7 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122370068","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":"Length-weight relationship and condition factor of Labeo niloticus, Synodontis schall and Auchenoglanis occidentalis, in Upper Atbara and Setit Dam Complex, Gadarif State, Sudan","authors":"Hozifa Adam Suliman Adam1*, Ahmed El-Aabid Hamad2","doi":"10.31248/gjfs2021.027","DOIUrl":"https://doi.org/10.31248/gjfs2021.027","url":null,"abstract":"This study was undertaken to assess the length-weight relationship and condition factor of Labeo niloticus; Synodontis schall and Auchenoglanis occidentalis, in Upper Atbara and Setit Dam Complex, Gadarif State, Sudan from September 2019 to January 2020. Samples of fish were collected monthly for a 5 months period. A total of 1475 specimens of L. niloticus (500 samples), S. schall (500 samples) and A. occidentalis (475 samples). Fish species sampled in the study area had size range of 17 to 37 cm, 11.6 to 30.5 cm and 16.7 to 38.8 cm, for L. niloticus, S. schall and A. occidentalis, respectively. The weight ranged from 88 to 927 g, 49 to 682 g and 94 to 1334 g, for L. niloticus, S. schall and A. occidentalis, respectively. The LWRs for the combined sexes had the (r) values of 0.974, 0.902 and 0.906, respectively. The mean condition factor (K) was 3.121±0.262, 2.902±0.435 and 2.366±0.292 for the combined sexes, respectively. The regression coefficient b was 2.848, 2.619 and 2.823 for the combined sexes, respectively indicating negative allometric growth pattern for all species.","PeriodicalId":136379,"journal":{"name":"Global Journal of Fisheries Science","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128104346","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":"Intra-specific hybridization and larval performance of two strains of wild African catfish Clarias gariepinus (Burchell, 1822) (Siluriformes: Clariidae) from Cameroon","authors":"Sunday Rosine Yekaws, Verkijika Mercy Burinyuy, Ashu Ashu, Ebot Clarkson Tabe-Agbor, Atkin Egbe Obie, A. F. Narika, Mbeng Ashu Arrey, Ebobenow Joseph, Judith G Makombu, B. Oben, G. Nkongho, P. M. Oben","doi":"10.31248/GJFS2021.025","DOIUrl":"https://doi.org/10.31248/GJFS2021.025","url":null,"abstract":"In Cameroon, wild strains of Clarias gariepinus (Burchell, 1822) are often used for artificial reproduction in hatchery facilities, but there is insufficient information on their reproductive capacity and progeny performance. The reproductive capacity of two strains of C. gariepinus from the Mezam and Mungo Rivers and the performance of their F1 larvae obtained following hybridization were assessed. Reproduction was carried out with four crosses as follows: Mezam (♂) x Mezam (♀) (T1), Mezam (♂) x Mungo (♀) (T2), Mungo (♂) x Mezam (♀) (T3) and Mungo (♂) x Mungo (♀) (T4). Thereafter, three days old larvae obtained following reproduction were subjected to a 30 day experimental trial with standard feeds. The performance of larvae obtained from T4 was not assessed since larvae obtained were too few for the experiment. Although the broodstock of the different strains did not differ significantly in size, Mezam stock had significantly (p = 0.00) bigger eggs when compared to Mungo stock. Fecundity of 52480 was recorded for Mezam stock compared to 32985 for Mungo stock. Fertilization and hatchability rates differed significantly (p < 0.05) among the crosses, with the highest (82.28 and 81.31%, respectively) in T1, followed by T3 (65.96 and 61.28%, respectively), and the least (38.61 and 2.81%, respectively) in T4. The best larval survival was recorded in T1 (37.17%) and the least in T2 (15.67%), meanwhile T3 recorded best growth after 30 days. In terms of fertilization and hatchability, T1 was more suitable for artificial reproduction, but T3 is more encouraged for aquaculture based on its reproductive capacity and larval performance.","PeriodicalId":136379,"journal":{"name":"Global Journal of Fisheries Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130230179","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}