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  • 1
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    Effect of imported feed and local feed on growth performance of tilapia (Oreochromis niloticus) (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24170 | 19325 | 2018-05-13 18:50:52 | 24170 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: A number of 60 Juveniles of Oreochromis niloticus were stocked and divided into two plastic ponds of 0.90m by 0.60 in dimension respectively with initial total weight of 120g.The juveniles were two months and half old as at the time of collection and they were fed with 4mm of the feeds. Each pond contains thirty Oreochomis niloticus which were fed with local feeds, and coppens feed. After weighing the fishes in the two ponds, there was significant difference in the average weight and length, in which the pond that was fed with coppens has the highest average weight and length of 140g and 15.62cm respectively. The quality of the water was checked by measuring pH, dissolved oxygen and temperature of the water using water aquaculture kit. Model: FF-1 A.CAT No. 2430-0. The mortality rate was 0%, while the survivability rate was 100%.
    Description: Includes: 2 tables.;Also includes: 5 references.
    Keywords: Aquaculture ; Ecology ; Oreochromis niloticus ; Nigeria ; Lagos ; freshwater environment ; Feed ; Freshwater fish ; Growth rate ; Length-weight relationships ; Pond culture ; Water quality ; Artificial feeding ; Feeding experiments ; Fish culture ; Survival ; Mortality
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
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    Format: 78-79
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  • 2
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    Length-weight relationship and condition factor of Citharinus citharus (Geoffroy Saint-Hilaire, 1809) from Lake Akata, Benue State, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24247 | 19325 | 2018-05-20 05:46:20 | 24247 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The Length-weight relationship and changes in the condition factor of Citharinus citharus of the Lake Akata, an ox-bow Lake of River Katsina-Ala, a tributary of River Benue was studied. A total of five hundred and five (505) fish samples were collected from May 2008-April 2009. Length-weight relationship of fish was estimated from the equation: W = a.Lb which was transformed to base 10 logarithm, and condition factor (k) was determined using the equation: K=100W/L3. Both sexes of C. citharus in Lake Akata exhibited negative allometric growth pattern. The combined length weight relationship of C. citharus sexes was LogW = - 1.7738 + 2.9044 LogL (r2 = 0.9527). The coefficient of determination for the Length-Weight relationship for both sexes of C. citharus in Lake Akata was strongly positive. The mean condition factor for the combined sexes was 1.37 ~c 0.02, but individually, female C. citharus were in better condition (1.44 ~c 0.03) compared to the males (1.29 ~c 0.02). The condition factor of C. citharus in dry season (1.37 ~c 0.03) was not significantly higher than that of (1.36 ~c 0.03) in wet season (p〉0.05). This means the fish species are living well in the lake as the 'K' value are greater than one.
    Description: Includes: 25 references.
    Keywords: Ecology ; Fisheries ; Citharinus citharus ; Nigeria ; Akata Lake ; Growth pattern ; Seasonal condition ; Citharinus citharus ; Lake Akata ; freshwater environment ; Length-weight relationships ; Condition factor ; Freshwater fish ; Lake fisheries ; Growth rate
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
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    Format: 374-378
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  • 3
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    Physico-chemical parameters of fish ponds as it affects fish production in Ado-Ekiti, Ekiti State, Nigeria (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24590 | 19325 | 2018-05-20 16:05:58 | 24590 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The water analysis of five selected ponds in Ado-Ekiti in Ekiti State, was carried out to determine their suitability for fish culture. Pa rameters analyzed were: Temperature, Turbidity, Carbon (IV) oxide, Alkalinity, Hardness, pH and Dissolved oxygen. Values for temperature ranged between 20.0~'C and 29.0~'C, Turbidity values were between 46.0-50.2cm, Carbon (IV) oxide: 11.5-12.2mg/litre; alkalinity: 100-120mg/liter; hardness: 110-200mg/litre; pH: 6.8-7.8 and dissolved oxygen: 5.8-6.8mg/liter. The values obtained were found to be within acceptable range for fish production.
    Description: Includes: 10 references.
    Keywords: Aquaculture ; Chemistry ; Nigeria ; Physico-chemical parameter ; Fish pond ; Ado-Ekiti ; Fish production ; freshwater environment ; automation
    Repository Name: AquaDocs
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    Format: application/pdf
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    Format: 97-100
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  • 4
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    Growth performance of Clarias gariepinus fingerlings fed diets with graded levels of yeast (Saccharomyces cerevisiae) used as a floater additive in concrete tanks (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24159 | 19325 | 2018-05-13 13:04:38 | 24159 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Completely randomized design with duplicate groups were used to study the growth performance of 400 fingerlings of Clarias gariepinus in 2m x 2m x 1m concrete tanks in an out-door hatchery complex of National Institute for Freshwater Fisheries Research (NIFFR), New Bussa, Niger State, Nigeria. Graded levels (0, 1,2,3 or 4) % of yeast (Saccharomyces cerevisiae) was included into a 40% crude protein (C.P) NIFFR floating basal diet and fed to Clarias gariepinus in tanks for 16 weeks and 35% in the last 4 weeks. This was to determine the optimum level of supplemental yeast inclusion as a floater additive into diets of C. gariepinus and to quantify feed and its cost for raising a kilogram of the fish fed diets. The experiment was geared towards development of cost effective standard floating feed for Clarias gariepinus. There was no significant difference in weight gain (WG), feed consumed (FC), specific growth rate (SGR), survival, cost of feed consumed (CFC) and palatability test of flesh (P〉0.05) except FCR (P〈0.05) and feed cost per kilogram of fish (P〈0.05) at the end of 8 and 20 weeks. There was no histopathological defect observed on the fish and fish carcass. It was concluded that 2% or 1 % level of yeast can be included in NIFFR floating feed with the assurance of producing a kilogram of C. gariepinus with a feed of N300.00 under good management practices based on ingredient ruling price at the time of this study and this might be capable of increasing farmer's income in fish production.
    Description: Includes: 1 table and 2 figures.;Also includes: 21 references.
    Keywords: Aquaculture ; Ecology ; Clarias gariepinus ; Nigeria ; Niger ; Yeast ; Floating additives ; Performance ; Clarias gariepinus ; freshwater environment ; Growth rate ; Freshwater fish ; Fingerlings ; Artificial feeding ; Feeding experiments ; Feed ; Yeasts ; Additives ; Culture tanks ; Cost analysis ; Performance assessment ; Fish culture
    Repository Name: AquaDocs
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    Format: 32-36
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  • 5
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    Growth performance and nutrient utilization of post fingerlings Clarias gariepinus fed varied levels of biscuit waste (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24162 | 19325 | 2018-05-13 13:15:18 | 24162 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: A feeding trial was conducted to determine the effect of biscuit waste meal on the growth performance and utilization of Clarias gariepinus juveniles. A total of 300 juveniles of average weight 8.85g were randomly divided into 5 Treatments, each with three replicates. Twenty juveniles were distributed into fifteen happas (0.7m3) and each happa was suspended to 3/4 of its volume using kuralon ropes carefully tied round the bamboo poles across the concrete tanks. Five diets containing 40% crude protein were formulated in which maize was replaced with biscuit waste meal at Treatment diet 1 (TD1) 0%, 25% (TD2), 50% (TD3), 75% (TD4), 100% (TD5) levels.The juveniles were fed at 3% body weight per day for 10 weeks. It was recorded at the end of the experiment that biscuit waste was most suitable as an energy supplement when incorporated at 25% replacement (TD2) with maize. TD1 had the highest weight gain followed by TD2, TD3, TD4 and TD5 respectively. There were no significant differences (P〉0.05) in the growth response in TD1 (0%), T0D (25%) and TD3 (50%). It is therefore concluded that biscuit waste meal is a cheap source of non conventional energy source which can be used favorably to replace maize (25% inclusion level) as an energy source in the diets of Clarias gariepinus.
    Description: Includes: 7 tables.;Also includes: 15 references.
    Keywords: Aquaculture ; Clarias gariepinus ; Nigeria ; Abeokuta ; Treatment ; Biscuit waste ; Net hapa ; Juvenile ; Crude protein ; freshwater environment ; Growth rate ; Nutrition ; Freshwater fish ; Fingerlings ; Diets ; Wastes ; Feed ; Feeding experiments ; Fish culture
    Repository Name: AquaDocs
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    Format: 45-50
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  • 6
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    The effects of Baker's yeast (Saccharomyces cerevisiae) on rearing of Heterobranchus longifilis: growth and survival in outdoor concrete tanks (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24158 | 19325 | 2018-05-13 13:02:50 | 24158 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Heterobranchus longifilis juveniles (93.42 - 147.77g) used for this study were product of an indoor experiment in glass aquaria transferred to outdoor tanks. This study is therefore, a continuation of the indoor study using the same feed for the fish outdoors for 230 days. They were stocked in ten concrete tanks, of sizes 2m X 2m. The fish were stocked according to the number harvested from the indoor experiment for each treatment. The experimental diets were prepared with fish meal, soybean, groundnut cake, wheat offal, yeast, premix, starch, vitamin C and Vitamin B-complex to meet the requirement of H. longifilis. The analyzed crude protein in each diet was 42.56%, 43.32%, 4369%,43.86% and 43.98%. There was significant variation (p〈0.05) in the Mean Final Weight (MFW), Mean Weight Gain (MWG), Protein Efficiency Ratio (PER), Specific Growth Rate (SGR) and Percentage Survival (PS). The survival of the fish was highest with the fish fed 2g yeast/I00g of diet and this was not significantly different from fish fed 1g yeast/ 100g diet. The cost of production of one kilogram of fish using varying levels of S. cerevisiae in diets varied significantly (p〈0.05).
    Description: Includes: 2 tables.;Also includes: 18 references.
    Keywords: Aquaculture ; Ecology ; Heterobranchus longifilis ; Nigeria ; Niger ; Growth ; Survival ; Heterobranchus longifilis ; Yeast ; freshwater environment ; Freshwater fish ; Yeasts ; Artificial feeding ; Diets ; Feeding experiments ; Culture tanks ; Growth rate ; Survival ; Fish culture
    Repository Name: AquaDocs
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    Format: 28-31
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  • 7
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    Preliminary investigation of Tribulus terrestris (Linn. 1753) extracts as natural sex reversal agent in Oreochromis niloticus (Linn. 1758) larvae (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24169 | 19325 | 2018-05-13 18:49:22 | 24169 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Five pairs of brood stocks of Oreochromis niloticus (average weight of 350 ~c 25.8g) in a ratio of 1:1 male to female were used for the fry production to examine the prospect of utilization of safer and natural extract (Tribulus terrestris) as sex reversal agent in tilapia population control. Four hundred and fifty day-old fry were randomly distributed into 18 experimental tanks (30 litres capacity) representing five test diets (50% crude protein) containing varying inclusion levels of Tribulus terrestris extract at 0.0, 1.0, 1.5, 2.0, and 2.5g per 1kg of basal feed while diet six contain 50mg per 1kg of basal feed of 17-a-methyltestosterone (MT) served as the control diet. The growth performance parameter indices measured were Mean Weight Gain (MWG), Food Conversion Ratio (FCR) and Specific Growth Rate (SGR). At the end of the study, the survival rates and sex ratio were also measured and recorded. Data collected were subjected to 2-way analysis of variance (ANOVA) where significant means were tested using the Least Significant Difference (LSD) test at p = 0.05.
    Description: Includes: 3 tables.;Also includes: 17 references.
    Keywords: Aquaculture ; Oreochromis niloticus ; Nigeria ; Ibadan ; Sex reversal ; Tribulus terrestris ; Oreochromis niloticus ; freshwater environment ; Sex reversal ; Agents ; Freshwater fish ; Genetically modified organisms ; Monosex culture ; Survival ; Growth rate ; Population control ; Fish culture ; Aquaculture techniques
    Repository Name: AquaDocs
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    Format: 74-77
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  • 8
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    The effects of dichlorvos (2, 2 - dichlorovinyl phosphate (DDVP)) induced stress on the growth of fingerlings of Clarias gariepinus (Burchell, 1822) (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24165 | 19325 | 2018-05-13 13:30:18 | 24165 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: This study was conducted to determine the effects of dichlorvos ~9 2, 2 - dichlorovinyl dimethyl phosphate (DDVP)~0 on the growth of Clarias gariepinus fingerlings. The experiment was conducted in two phases: the first phase involved the exposure of the fish to different concentrations ~9 0.00 (control), 0.4ppm, 0.5ppm, 0.6ppm, 0.7ppm, 0.8ppm, 0.9ppm, 1.0ppm, 1.1 ppm and 1.2ppm~0 of dichlorvos for four days. The second phase was a recovery process in which the fish that survived from the first phase were introduced into clean, dechlorinated, toxicant-free water and were fed at 3% of their body weight for 12 weeks. The change in weight was measured every fortnight and the feed fed was adjusted to accommodate the change in weight. The highest values for weight gain, percentage weight gain, specific growth rate and average daily weight gain occurred in the control and these values were significantly (p〈0.05) higher than the values of these parameters recorded in the other treatments. The range of values of weight gain, percentage weight gain, specific growth rate and average daily weight gain are 6.76 ~c 3.01-18.45 ~c 8.90g, 69.45 ~c 18.52 - 105.52 ~c 33.67%, 1.54 ~c 0.33 - 2.08 ~c 0.46%/day and 0.48 ~c 0.21 - 1.21 ~c 0.65g respectively. Based on the results of this study, the exposure of fingerlings of Clarias gariepinus to dichlorvos ~9 2, 2- dichlorovinyl dimethyl phosphate (DDVP)~0 affected the growth of the fish. Therefore, the use of dichlorvos on stored grains should be regulated because uncontrolled usage could cause mortality and impairment of growth in fish if the pesticide gets washed into water bodies inhabited by fish.
    Description: Includes: 1 table.;Also includes: 9 references.
    Keywords: Aquaculture ; Ecology ; Pollution ; Clarias gariepinus ; Nigeria ; Lagos State ; Toxicity ; Pesticide ; Clarias gariepinus ; Growth performance ; freshwater environment ; Freshwater fish ; Fingerlings ; Toxicants ; Pesticides ; Toxicity ; Bioaccumulation ; Feeding ; Growth rate ; Pollution effects
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 57-59
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  • 9
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    Effect of Terminalia suparba on fecundity and latency period of Clarias gariepinus broodstocks (2021)
    FISON | Minna (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24067 | 19325 | 2018-05-10 10:15:21 | 24067 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: This study focused on the assessment of Terminalia suparba (bark, leave and root) based diet to improve the ovulation of Clarias gariepinus brood stocks. Ten female and ten male brood stocks were obtained from a reputable fishfarm in Ogun State, Nigeria and were fed with the diets for four weeks before the breeding exercise. The latency period observed in treatments 1 to 4 was 4hours 30minutes while the ovulation period in treatment 5 was 8 hours. There was no significant different (P〉0.05) among the means. The brood stocks in Treatment 2 (Root) has the highest fecundity count (2001) while those in Treatment 5 (control) has the least fecundity count (1496). The phytochemical analysis of the plant materials showed the presence of Alkaloids, Tannin, Phenol, Glycoside, Flavonoids, Steroids, Phlobatannin, Saponin, Anthraquinones. The physical and chemical parameters of water observed showed that dissolved oxygen value ranges from 3.28 -4.60, pH 6.5 - 8.5, temperature 28.0 - 28.8 and conductivity 8.9 - 9.20. It is therefore concluded that the inclusion of Terminalia suparba in the feed of Clarias gariepinus broodstock will not only improve ovulation but also reduce the latency period.
    Description: Includes: 5 tables;Also includes: 11 refs.
    Keywords: Aquaculture ; Chemistry ; Ecology ; Clarias gariepinus ; Nigeria ; broodstocks ; Terminalia specie ; Latency ; fecundity ; Clarias gariepinus ; freshwater environment ; Artificial feeding ; Feeding experiments ; Fecundity ; Brood stocks ; Sublimation heat ; Ovulation ; Physicochemical properties ; Fish culture
    Repository Name: AquaDocs
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  • 10
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    Comparative assessment of fermented maize broth and cassava waste water on the growth performance of catfish (Clarias gariepinus) fry (2021)
    FISON | Minna (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24078 | 19325 | 2018-05-12 14:08:28 | 24078 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The study was conducted to evaluate and compare the growth performance of catfish fry on fermented maize broth and cassava waste water. Four day old fry (weight range 0.002 - 0.003g) of C. gariepinus were acclimatized in 10 litres glass tank of water for 5 days in Aquaculture Department of Nigerian Institute for Oceanography and Marine Research, Victoria Island, Lagos. Shell free artemia was mixed with Fermented Maize Both (FMB), Fermented Cassava Waste water (FWC) and bore hole water (control) respectively. The artemia mixtures were allowed to air-dry before administration. The treatments were produced in triplicates, feeding, ad-libitium for 30 days. The fry were fed with the treated shell free artemia and weighed every 6 days. The results revealed that fry fed fermented cassava waste water [FCW] diet showed highest mean weight, daily growth rate [DGR], survival rate and specific growth rate [SGR] and lowest food conversion ratio (FCR). This was followed by fermented maize broth while fish fed artemia mixed with borehole water-had the least growth. The results suggest that addition of fermented cassava waste water to shell free artemia can enhance fish growth in catfish hatchery production.
    Description: Includes: 1 table and 1 figure;Also includes: 13 refs.
    Keywords: Aquaculture ; Clarias gariepinus ; Nigeria ; Lagos ; Growth performance ; Fermented cassava waste water (FCW) ; Maize broth (FMB) ; freshwater environment ; Feeding experiments ; Fish culture ; Growth rate ; Fish ; Fry ; Feed ; Nutrients (mineral) ; Waste water ; Comparative studies ; Fermentation ; Length-weight relationships
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 79-83
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