International Journal of Aquaculture and Fishery Sciences最新文献

{"title":"The effect of dietary Aloe vera powder on growth performance and survival rate of Oreochromis niloticus fries","authors":"Ochingo Jared J, Chepkirui Mercy, Kemunto Vivian","doi":"10.17352/2455-8400.000086","DOIUrl":"https://doi.org/10.17352/2455-8400.000086","url":null,"abstract":"This study aimed to evaluate the impact of dietary Aloe vera on the growth performance parameters of Oreochromis niloticus fry. A feeding trial was conducted for a month at KMFRI Sang’oro Aquaculture station and 135 fish were randomly assigned to three treatments, including a Control group (C1), a group fed with 1% Aloe vera (A1), and a group fed with 2% Aloe vera (B1). The growth parameters, including Specific Growth Rate (SGR), Feed Conversion Ratio (FCR), Weight Gain (WG), and Survival were measured. The results indicated that the administration of Aloe vera at different concentrations significantly improved the growth performance of fish. The SGR, FCR, and WG were significantly higher in fish fed with Diet B (2% Aloe vera) followed by those fed with Diet A (1% Aloe vera) compared to the Control group. The results confirmed the Alternative hypothesis that there is a significant difference in the growth performance of fish fed with various incorporations of Aloe vera. Therefore, the study recommends the use of Aloe vera as a growth promoter in aquaculture, particularly at higher incorporation rates of 2%.","PeriodicalId":253046,"journal":{"name":"International Journal of Aquaculture and Fishery Sciences","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127818813","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":"The effect of mercury ions on the metabolic activity of Poecilia Reticulata cells","authors":"A. Aleksey, Komarova Ln, Lyapunova Er","doi":"10.17352/2455-8400.000085","DOIUrl":"https://doi.org/10.17352/2455-8400.000085","url":null,"abstract":"Among anthropogenic factors polluting ecosystems and affecting living organisms, mercury, and its compounds are the most toxic. In this study, we investigated the effect of mercury ions on freshwater live-bearing fish Poecilia reticulata. The cytotoxicity of mercury was analyzed on Poecilia reticulata fry using the MTT test. Studies have shown that small concentrations of mercury can have a stimulating effect on the metabolic activity of fish cells, but at high concentrations, the mercury had a depressing effect.","PeriodicalId":253046,"journal":{"name":"International Journal of Aquaculture and Fishery Sciences","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115569603","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 the replacement levels of soya bean meal by water Hyacinth flour (Eichhornia Crassipes) as a source of protein on the survival and some zootechnical performances of Clarias Gariepinus fry in concrete tanks","authors":"P. Zango, Ruben Ngouana Tadjong, Suzanne Ngon Kong, Tabi Abodo Tomedi Eyango Minette","doi":"10.17352/2455-8400.000084","DOIUrl":"https://doi.org/10.17352/2455-8400.000084","url":null,"abstract":"In order to contribute to the increase of table fish production in the world in general and particularly in Cameroon through an optimal valorization of local by-products, the zootechnical performance of Clarias gariepinus fry was evaluated in concrete tanks according to the replacement levels of soya bean meal by water hyacinth flour (Eichhornia crassipes). For this purpose, a trial was conducted at the Logbaba Intensive Aquaculture Pilot Unit (LN: 4°02’ and 4°34’; LE: 9°41’ and 9°18’). A total of 240 Clarias gariepinus fry of initial mean weight 5 ± 0.22 g were divided into 12 batches of 20 fry each into 0.5 m3 baits in concrete tanks in a completely randomized device. These fries were fed for 56 days. The feed rations consisted of 4 iso-protein feeds with 47% protein. Either T0+ (positive proof) an imported food (Coppens), T0- (Negative proof) local food without soya bean meal and two other experimental foods whose soya bean meal has been replaced at 5% (T5) and 10% (T10) by Eichhornia crassipes flour. The results obtained showed that the highest survival rate (98.33% ± 2.88%) was recorded with the imported feed T0+ and lower (93.33% ± 2.76%) with the food containing 5% water hyacinth powder. The final mean weight and daily weight gain were significantly (P < 0.05) higher (26.08 ± 1.25 g and 1.49 ± 0.08 g/d respectively) with the T0+ diet and lower with the T1 local food (11, 92 ± 0, 90; 48 ± 0,06 g/d respectively). The average daily gain was comparable between the T5 and T10 diets (0.67 ± 0.14 g/d; 0.93 ± 0.12 g/d respectively). The specific growth rate (P < 0.05) and consumption index (P < 0.05) were significantly higher (2.87 % ± 0.08% g/d and 0.34 ± 0.04 respectively) compared to treatments containing 5% (T5) and 10% (T10) of water hyacinth powder (1.83 ± 0.24 g/d; 2.24 ± 0.17% g/d) and 1.08 ± 0.31; 0.66 ± 0.14) respectively. Thus, water hyacinth flour can be used to replace the soya bean meal as a protein source in the diet of Clarias gariepinus fry for optimal growth.","PeriodicalId":253046,"journal":{"name":"International Journal of Aquaculture and Fishery Sciences","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130273072","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":"The current status of Barbus species in Lake Victoria Basin, Kenya: A review","authors":"Chemoiwa Emily Jepyegon","doi":"10.17352/2455-8400.000083","DOIUrl":"https://doi.org/10.17352/2455-8400.000083","url":null,"abstract":"Lake Victoria is known for its rich fish biodiversity having been home to over 500 fish species. However, over 200 species have become extinct and as a result, it is classified as a world hotspot of species loss. Some of the examples of endemic species that disappeared from the lake and are endangered include the Haplochromines and the Barbus species. The Barbus species is currently not seen in the fish landings from Lake Victoria. It is deemed to have sought refuge in the riverine ecosystems, dams and the adjacent satellite lakes within the Lake Victoria Basin. This has resulted in several gaps emerging including its current status as its taxonomical identification still remains a puzzle to many scientists. This paper, therefore, tries to unearth the foregoing by reviewing the already available literature with an emphasis on the LVB Kenyan part. The Labeobarbus altianalis is still named Barbus altianalis even in the most recent publications thus complicating further. In its distribution, the Barbus species does not occur in the lake currently but is a common candidate in the rivers, dams and satellite lakes within the basin. Some of the cited reasons for its disappearance: are predation by Lates niloticus, overfishing, competition from exotic species, pollution and climate change. However, different studies try to pinpoint its presence in some rivers and this according to an observation made in this study is due to biased sampling, which excludes some rivers in the basin. It is concluded that the taxonomic identification of Barbus species in LVB Kenya remains elusive and this has been blamed on skewed sampling with little regard to all ecosystems in the basin. The paper recommends that an elaborate simultaneous study be done in all the rivers within the LVB, Kenya to collect reliable data for use in Barbus species taxonomy and general biology. Further, county governments in the basin should develop sound policy frameworks on how to sustainably manage riverine fisheries including the domestication of the species in aquaculture.","PeriodicalId":253046,"journal":{"name":"International Journal of Aquaculture and Fishery Sciences","volume":"177 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134308312","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 comparison of blue and silver vertically-suspended environmental enrichment during Chinook Salmon and Rainbow trout rearing","authors":"Robidoux Michael J, Mauck Thomas, Huysman Nathan, Voorhees Jill M, Barnes Michael E","doi":"10.17352/2455-8400.000082","DOIUrl":"https://doi.org/10.17352/2455-8400.000082","url":null,"abstract":"This study evaluated the use of either blue or silver vertically-suspended environmental enrichment in two experiments, with one rearing Chinook salmon (Oncorhynchus tshawytscha) for 29 days and the other rearing rainbow trout (Oncorhynchus mykiss) for 98 days. In both experiments, there were no significant differences in total tank weight, gain, percent gain, feed conversion ratio, or percent mortality between tanks with either silver (unpainted aluminum) or blue vertically-suspended environmental enrichment. Individual fish total length, weight, specific growth rate, and condition factor were also not significantly different between the two colors for both fish species. These results indicate that either silver (unpainted aluminum) or blue vertically-suspended environmental enrichment can be used during the hatchery rearing of juvenile Chinook salmon or rainbow trout.","PeriodicalId":253046,"journal":{"name":"International Journal of Aquaculture and Fishery Sciences","volume":"69 37","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114046705","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":"The use of underwater active and passive acoustics to locate and study fishes","authors":"Hawkins Anthony D","doi":"10.17352/2455-8400.000081","DOIUrl":"https://doi.org/10.17352/2455-8400.000081","url":null,"abstract":"This paper describes how fish can be located using sound, especially in the sea, but also in rivers and lakes. It describes the use of sound detections, including both passive and active acoustics, and it reviews each of these technologies and shows how they can be used to understand the distribution of sound-producing species and to examine information on the spawning habitats of fishes, and their spawning behavior, and also their movement patterns. Sounds generated by humans can have detrimental effects upon fishes, and some stocks of fishes are exploited close to their safe biological limits, requiring restrictions upon those human activities that may harm them. There is a need to regulate those human activities that have adverse effects on fish.","PeriodicalId":253046,"journal":{"name":"International Journal of Aquaculture and Fishery Sciences","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128713469","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 Study on the Specific Growth Rate (SGR) at Different Stages of Tilapia (Oreochromis niloticus) Production Cycle in Tank Based Aquaculture System","authors":"Rahman Md. Hashibur, Haque Mohammad Mahfujul, Alam Mohammad Ashraful, Flura Flura","doi":"10.17352/2455-8400.000079","DOIUrl":"https://doi.org/10.17352/2455-8400.000079","url":null,"abstract":"The conventional assessment of the specific growth rate (SGR) avoiding intermediary data is highly criticized by scholars as to the data of the beginning and the end of the production cycle usually considered for the measurement. To evaluate the SGR, the study was conducted in six concrete tanks under an outdoor laboratory shed from 10th May to 29th July 2017. Tilapia (Oreochromis niloticus) fry was released at the rate of 8 fries per tank as per the recommended stocking density of 320 fishes/decimal in an intensive aquaculture system. To evaluate the experiment, sinking and floating feeds as treatment 1 (T1) and treatment 2 (T2) were used for feeding the fish, respectively. There were three replications for each treatment. During the experimental period, the feed was supplied at the rate of 20%, 15%, and 10% of the body weight in the 1st, 2nd, and 3rd months, respectively. The daily ration of fish was divided into two parts and delivered to fish in the morning and in the evening. Aeration facilities were installed for 24 hours using an air stone aerator. Digital balance was used for measuring the weight of fish in 3 days intervals to assume the trend of SGR while a customized scoop net was used to sample the fish minimizing the stress on the fish. The weight gains of fish were 126.08±5.65 and 132.23±1.29 for T1 and T2, respectively. The mean percent weight gain was found higher in T2 (1715.03±0.00) than in T1 (1639.43±0.00). Feed conversion ratio (FCR) in T1 and T2 were 1.97±0.11 and 2.13±0.18, respectively. The specific growth rates (SGR) of tilapia in T1 and T2 were 4.90±3.03 and 4.98±2.28 considering the data at the beginning and the end of the production cycle, respectively. However, the SGR for floating feed was higher at the initial stage of the production cycle and lower in the later stages. The SGR was almost static for sinking feed from the beginning to the end of the experimental period. The higher FCR in T2 was correlated with the lower SGR in the later stage of the culture period. This ascertains that the pre-determined required amount of feeding ration imparted by the farmers in case of floating feed which wastes the high-cost feed and money. Higher total production was obtained in T2 (1119.52 g) than in T1 (1070.19 g) with 100% survival in both treatments. Therefore, determining SGR in a specific interval might be a useful tool at the farmer’s level.","PeriodicalId":253046,"journal":{"name":"International Journal of Aquaculture and Fishery Sciences","volume":"84 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121148784","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":"Nutrient utilization and growth performance of African Catfish (Clarias gariepinus) fed varying levels of Composite Meal (CM) in replacement of fishmeal","authors":"Ojewole Akinloye Emmanuel, Faturoti Emmanuel Olujimi, Ihundu Christianah","doi":"10.17352/2455-8400.000078","DOIUrl":"https://doi.org/10.17352/2455-8400.000078","url":null,"abstract":"This study evaluates the nutrient utilization and growth performance of African catfish (Clarias gariepinus) fed alternative animal protein composite meal for 42 days. The composite meal is composed of feather meal, blood meal, tilapia meal, and maggot meal each in a 25% proportion. Five isonitrogenous diets (T1, T2, T3, T4, and T5) containing 40% crude protein were formulated with the composite meal replacing fish meal at 0% control (T1), 25% (T2), 50% (T3), 75% (T4) and 100%(T5) respectively. The weight gain, protein intake, protein efficiency ratio, and specific growth rate in the 75% and 100% inclusion levels were not significantly different from the control diet. Fish survival ranged between 90-95% with the highest weight gain of 10.57g observed in the 100% inclusion level. The Feed conversion ratio varied between (1.17 and 1.37). The results from growth, feed utilization, and survival levels showed an overall good growth of the fish in the experimental diets, and this indicates that the composite meal is a potential replacement for fish meal in the diets of Clarias gariepinus fingerlings.","PeriodicalId":253046,"journal":{"name":"International Journal of Aquaculture and Fishery Sciences","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129092344","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":"Nutritional, phytochemical and biochemical composition of (Moringa Oleifera) raw seed, seed cake, and leaf meal for Aquaculture feeds","authors":"L. Argungu, F. Umar, H. Jibrin, A. Hashim","doi":"10.17352/2455-8400.000076","DOIUrl":"https://doi.org/10.17352/2455-8400.000076","url":null,"abstract":"The study was conducted on the nutritional and biochemical composition of the Moringa oleifera plant (Seed, Seed Cake, and leaf meal) at two different locations. The proximate and mineral composition were carried out at the Central Laboratory of the National Institute for Fresh-water Fisheries Research (NIFFR), New Bussa, Niger State, while the Biochemical and phytochemical analyses were conducted at Usmanu Danfodiyo University, Sokoto. The result for the proximate composition of the M. oleifera plant revealed that the moisture content for the M. oleifera leaves sample (8.88 ± 0.39%) was significantly higher when compared with the M. oleifera seed (4.81 ± 0.99%) and seed cake (7.43 ± 0.24%) while the seed having the lowest moisture content (4.81 ± 0.99). The crude protein content for M. oleifera seed cake (53.23 ± 0.42) was significantly (p<0.05) higher than that of M. oleifera seed (40.66 ± 0.34%) and the leaves meal had the lowest crude protein (27.26 ± 0.55). The ash contents for M. oleifera leaves meal (10.61 ± 0.14%) were significantly higher compared with M. oleifera seed cake (8.34 ± 0.07%), and the seed had the lowest ash content (3.44 ± 0.14%). The lipid content of M. oleifera leaves meal (17.17 ± 0.65%) was significantly higher when compared with M. oleifera seed, and the seed cake had the lowest lipid content (13.51 ± 1.23). The fiber content for M. oleifera seed (17.08 ± 0.61) was significantly higher when compared with M. oleifera leaves meal (8.91 ± 0.33%), and the seed has the lowest fiber content (2.48 ± 0.16). The NFE for M. oleifera leaves meal (27.17 ± 0,45%) was significantly higher when compared with M. oleifera seed (18.24 ± 0.94), and the seed cake had the least NFE content (15.02 ± 1.42%). The result of mineral composition showed that the plant contained a higher amount of some minerals; This includes potassium, calcium sodium, magnesium, and manganese. For the amino acid composition, it clearly stated that the plant contains some essential and non-essential amino acids. The results of the phytochemical test revealed that all the plant parts analyzed contain anti-nutritional factors. Further research should be carried out to test the nutritional and biochemical values of Moringa oleifera seed cake and leaf meal using culture fish species.","PeriodicalId":253046,"journal":{"name":"International Journal of Aquaculture and Fishery Sciences","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124195923","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 inbreeding depression on the success of artificial reproduction in the African catfish Clarias Gariepinus (BURCHELL, 1822)","authors":"T. Mbaye, N. Fatou, Bale Khady, Maguelemou Louis, Sene Malick","doi":"10.17352/2455-8400.000077","DOIUrl":"https://doi.org/10.17352/2455-8400.000077","url":null,"abstract":"The objective of this study was to establish an effective method of artificial reproduction and larval rearing to improve the fry production of the African catfish Clarias gariepinus. Thus, a hormonal treatment using ovaprim was used to induce maturity in males and females. Two breeding trials were first conducted on captive populations by crossing a male and female Senegalese strain (♂ss/♀ss), and a male and female Beninese strain (♂bs/♀bs). A third reproduction test was carried out by crossing ♀ss/♂bs and ♂ss/♀bs but for this test, the ♀ss and ♂ss are wild breeders that were collected from the natural environment. For the first two breeding tests (♂ss/♀ss and ♂bs/♀bs, respectively), fertilized eggs either did not hatch or some hatched but the fry did not survive. Although the number of broodstock used in these first two breeding tests is small, this lack of hatching and poor larval survival may reflect inbreeding depression. The third breeding test was successful as females and males, respectively, produced large quantities of eggs (13g of eggs for ♀ss and 32g of eggs for ♀bs) and sufficient quantities of sperm to fertilize the eggs (approximately 12g for the Benin strain and 5g for the Senegal strain). Hatching rates of 90% and 60% were obtained for the ♀ss/♂bs and ♀bs/♂ss breeding’s, respectively, after incubation of fertilized eggs on water hyacinth (natural substrate) and pompon (artificial substrate). Comparisons of growth rates of larvae fed two different diets (combination of natural and artificial food, and artificial food alone) showed that artificial food alone was more effective for growth, especially after one month of rearing. The high larval mortalities recorded especially at the end of the experiment were mainly due to poor water quality. Thus, this study provided a better understanding of the conditions in the hatchery and larval culture systems that are critical to the success of artificial reproduction and optimal growth of C. gariepinus fry.","PeriodicalId":253046,"journal":{"name":"International Journal of Aquaculture and Fishery Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129588458","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}