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  • 11
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    Lysine requirement and its effect on the body composition of Oreochromis niloticus fingerlings (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23512 | 19325 | 2018-05-08 15:38:22 | 23512 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: The study was carried out to investigate the lysine requirement and its effect on the body composition of Oreochromis niloticus fingerlings. Two hundred and seventy fingerling O. niloticus (9.01 -11.09g) were reared in 35L plastic troughs. Six diets were formulated, containing 35% crude protein. The diets were formulated with ingredients deficient of lysine (Groundnut cake -3.23g lysine/100g diet and guinea corn -1.9g lysine/100g diet) for O. niloticus having whole body content of 7.51g lysine/100g protein. The diets consist of a basal diet (Diet I, no added lysine), while the test diets (II, III, IV and V) had 4.56g, 6.87g, 7.30g, 7.41g lysine/100g protein respectively. The reference diet was made of Clupeids (mixture of Pellonula afzeliusi and Physalia pellucida), groundnut cake and guinea corn but no added lysine (5.37g lysine/100g protein). The fish were fed twice daily (0900 and 18.00hrs) at 3% body weight for 56 days. There was significant difference in the mean weight gain and food conversion efficiency (P〈0.05). The four levels of lysine resulted in quadratic responses (P〈0.05). Calculation using regression equations from the relationship between the specific growth rate, weight gain and lysine levels show that lysine requirement for fingerling was 7.12g/100g protein respectively. The requirement of O. niloticus for lysine is 7.12g lysine/100g protein.
    Description: Includes:-6 tables;18 refs.
    Keywords: Aquaculture ; Oreochromis niloticus ; Nigeria ; New Bussa ; freshwater environment ; Lysine ; Feeding experiments ; Diets ; Feed composition
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 573-579
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  • 12
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    Proximate composition of some commercial fish feeds sold in Nigeria (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23511 | 19325 | 2018-05-08 15:37:02 | 23511 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: A study was undertaken to analyse and compare with manufacturers’ declaration the nutrient content of some feeds available in Nigeria through proximate analysis. The commercial fish feeds collected from the markets were Adolf Calyx, Coppens, Dizengoff and Durante. Proximate composition such as moisture, crude protein, crude lipid, ash, fibre and NFE (nitrogen free extract) were analysed. In general, there was variation between analysed and company declared nutrient contents of different feeds especially the protein and lipid content of the feeds. Apart from Adolf Calyx, all the analysed feeds had protein contents of above 40% which is good for catfish production as recommended by the manufacturer. Keywords: Proximate composition, Commercial fishfeeds, Adolf Calyx, Coppens, Dizengoff, Durante.
    Description: Includes:- 2 tables.;15refs.
    Keywords: Aquaculture ; Nigeria ; Makurdi ; Proximate analysis ; Feed evaluation ; freshwater environment ; Moisture ; Ash content ; Proteins ; Lipids ; Diets ; Feed ; Feed efficiency
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 568-572
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  • 13
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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
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 45-50
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  • 14
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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
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 28-31
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  • 15
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    Food, feeding ecology and condition index of the brackish river prawn Macrobrachium macrobrachion (Herklots, 1851) (Crustacea, Decapoda, Palaemonidae) in the Cross River Estuary, South-Eastern Nigeria (2021)
    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/22994 | 19325 | 2018-03-04 05:34:46 | 22994 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-12
    Description: Investigations were carried out to study the food, feeding ecology and condition index of the brackish river prawn, 〈i〉Macrobrachium macrobrachion〈/i〉 (HERKLOTS, 1851). One thousand, nine hundred and ninety-seven live specimens which comprised of individuals representing all size groups of the prawn were studied. The specimens were obtained from the commercial artisanal catches at Nsidung Beach along Calabar River (40301N and 80201E). Although algae formed the bulk of the diet of the prawn with 44.61% occurrence, other food items: detritus (24.30%), crustacean remains (23.14%), mud/sand particles (6.23%), fish bones and scales (2.14%) and small worms (0.21 %), were also consumed. The sub-adult and adult prawns respectively exhibited similar condition index of 0.98, while the youngs showed a condition index of 0.82. The significance of the similarities in condition indices between the sub-adult prawns and the varied condition indices among the young, sub-adult and adult prawns in addition to the exhibition of an overlapping feeding ecology by the prawn is discussed.
    Description: Includes:- 2 tables.;2 figs.
    Keywords: Ecology ; Fisheries ; Macrobrachium macrobrachion ; Nigeria ; Calabar R. ; brackishwater environment ; Feeding behaviour ; Brackishwater ecology ; Diets ; Stomach content ; Shrimp fisheries
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 137 - 143
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  • 16
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    Honey comb potentialities as growth promoter and preservator in Clarias gariepinus diets (2021)
    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23024 | 19325 | 2018-03-05 09:10:54 | 23024 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-12
    Description: Honey comb was involved as floating additive in fish diets at 0, 4 and 8% levels in 30% crude protein Clarias gariepinus juveniles of mean weight 30.30~c0.05g for 56 days in aquaria each measuring 60 x 30 x 30cm. Within six weeks all stages of grain weevils Oritzaphillus mecartus were associated with the honey comb diets, while those with honey comb remained as kept. Feed and fish values were better in honey comb diets. The growth, food utilization indices; feed and fish values were significantly (P〈O.05) higher in honey comb diets. Bee keeping for income and honey comb usage in fish diets were suggested to fish farmers.
    Description: Includes: 3 tables.;1 fig.;22 refs.
    Keywords: Aquaculture ; Clarias gariepinus ; Nigeria ; freshwater environment ; Diets ; Feed composition ; Feed preparation ; Floating ; Fish culture
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 240 - 244
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  • 17
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    Haematological changes of Clarias gariepinus juveniles fed different dietary lipid (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24234 | 19325 | 2018-05-19 07:29:20 | 24234 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Twelve weeks feeding trial was conducted to determine the effects of different dietary lipid sources on the hematological changes in Clarias gariepinus juveniles. Six (6) iso-nitroginous diets were formulated at 45% CP and fed to triplicate groups of 15 juveniles. The feed contained (Palm Seed Oil (PSO), Ugwu Seed (USO), Soya Bean Oil (SBO), Almond Seed Oil (ASO), Mixture Of All the vegetable oil + the fish oil (MOA) and Cod Liver Oil (CLO) which is the control. The oils were added at 5% inclusion level respectively. Fish of mean weight 22.83 ~c 0.30g were fed these experimental diets in triplicate groups. The hematological analyses of fish showed that red blood cell, white blood cell, Erythrocyte sedimentation rate ( ESR), Mean cell volume (MCV), Mean cell Haemoglobin (MCH) and packed cell volume were not significantly different (p〈0.05), but haemoglobin concentration and Mean cell haemologlobin concentration (MCHC) were significantly different (p〉0.05). The present study showed that PSO, USO, ASO, SBO and MOA can effectively replace cod liver oil without compromising the health of African catfish, Clarias gariepinus.
    Description: Includes: 17 references.
    Keywords: Aquaculture ; Ecology ; Clarias gariepinus ; Nigeria ; Dietary lipid ; Juveniles ; Haematology ; Clarias gariepinus ; Haematology ; Phase changes ; Freshwater fish ; Juveniles ; Diets ; Lipids ; Feeding ; Feed ; Blood cells ; Fish oils ; Experimental research ; Laboratory culture
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 327-330
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  • 18
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    Growth performance and feed utilization of Clarias gariepinus (Teugels) fed different dietary levels of soaked Bauhinia monandra (Kutz) seed meal (2021)
    FISON | Minna (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24076 | 19325 | 2018-05-12 14:04:20 | 24076 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: This study was conducted to evaluate the suitability of soaked Bauhinia monandra (Kutz) seed as alternative protein source for Clarias gariepinus and to determine cost of feed compounded. The proximate analysis of the diet and carcass composition of fish (crude protein, crude fibre, ash, moisture content and lipid were determined using AOAC (1980). Data for each parameter were subjected to analysis of variance (ANOVA) while means of various results were compared at 5% level of significance. A preliminary study was conducted to determine the best processing method that reduced anti-nutrients to the minimum level without impairing nutrients composition. Boiled, toasted and soaked seeds were used. Bauhinia seeds soaked for 96 hours had least concentration of anti-nutrients. The experimental diets was formulated to contain soaked Bauhinia seed meal (SBSM) at levels of 25%, 50% and 75% inclusion (Diets 2, 3 and 4 respectively) with two diets acting as control (Diets 1 and 5). All diets were isonitrogenous (40% crude protein) and isocaloric (3212kcal/kg). A 12 weeks feeding trial was conducted in juveniles which were randomly distributed into 24 improvised non-recirculatory and semi-flow through indoor plastic tanks (52cm X 34cm X 33. 5cm) at a stocking rate of 10 fish per tank and three (3) replicates per treatment. The experimental design was complete randomized. The fish were fed at 5% body weight, twice daily. Diets with higher inclusion levels of SBSM (diets 3 and 4) significantly depressed growth formance of fish. The variations observed in the SGR, FCR, FER and PER were associated with the anti-nutrients present in the diets, these parameters reduced with increasing levels of SBSM in the diets of fish. Based on the relative cost of diets per unit eight gain and protein gain, diet 2 (25% SBSM) was most economical. The results suggested that SBSM can be used to substitute up to 25% levels of dietary protein in C. gariepinus juveniles without significant reduction in growth.
    Description: Includes: 4 tables;Also includes: 23 refs.
    Keywords: Ecology ; Aquaculture ; Nigeria ; Katsina State ; Growth ; Feed utilization ; i Clarias gariepinus/i ; freshwater environment ; Fish ; Feeding ; Utilization ; Diets ; Feeding experiments ; Carcasses ; Growth rate
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 66-74
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  • 19
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    Graded level inclusion of melon shell in the diet of hybrid catfish (Heteroclarias) as energy source (2021)
    FISON | Minna (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24103 | 19325 | 2018-05-16 13:44:13 | 24103 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Utilization of agricultural waste- melon shell by hybrid catfish (heteroclarias) 3.92 ~c 0.05g was investigated in this research. Five isonitrogenous diets containing 40% crude protein with inclusion levels of melon shell meal (MSM) at 0%,25%,50%, 75% and 100% in replacement of maize meal was fed to heteroclarias species for 56.days. The results indicated significant differences (P〈0.05) in the growth parameters and body compositions. Diet containing 50% melon shell meal gave a significantly high mean weight gain, specific growth rate, protein efficiency ratio, apparent protein utilization and low feed conversion ratio respectively. The experiment supported the inclusion of melon shell meal up to 50% without detrimental effects on the growth of the fish.
    Description: Includes: 4 tables and 1 figure;Also includes: 14 erfs.
    Keywords: Ecology ; Aquaculture ; Nigeria ; freshwater environment ; Fish ; Byproducts ; Feeding experiments ; Utilization ; Diets ; Nutritional requirements ; Energy resources ; Growth rate
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 235-242
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  • 20
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    Impact of feeding diets containing Luffa cylindrica seedmeal on the variable cost of production of African catfish, Clarias gariepinus (Burchell 1822) (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24157 | 19325 | 2018-05-13 13:00:52 | 24157 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: This study investigates the use of Luffa cylindrica seed meal as soybean replacer in the diet of Clarias gariepinus. Five isonitrogenous diets containing soybean meal which was replaced by Luffa cylindrica at a rate of 0, 15,30,45 and 60% were made. The diets without Luffa cylindrical seed meal served as the control. Experimental diets were assigned randomly to the tanks and each group of fish was fed 5% body weight in equal proportion per day. The fish fed diet 1 had the highest incidence of cost, while the fish fed diet 4 had the lowest incidence of cost. There was no significant difference (P〉0.05) in the incidence of cost of producing 1kg fish with the different dietary treatments. The fish fed at diet 4 had the highest profit, while the fish fed at diet 1 had the lowest profit. There was no significant difference (P〉0.05) in the profit margin of producing 1kg fish with the different dietary treatments. The incidence of cost showed that it was cheaper to produce 1kg of fish with Luffa cylindrical seed meal because feeding the fish with the diet (control and tests diets) left some profit margin.
    Description: Includes: 5 tables.;Also includes: 18 references.
    Keywords: Aquaculture ; Ecology ; Clarias gariepinus ; Nigeria ; Ogun State ; freshwater environment ; Diets ; Freshwater fish ; Artificial feeding ; Feeding experiments ; Fish culture ; Production cost
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 24-27
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