ABSTRACT The evaluation of Kolanut pod husk (KPHM) as substitute for maize in the diet of African catfish (Clarias gariepinus) was investigated for period of eight (8) weeks. KPHM was substituted for maize at 0% (control (Tl)), 2S% (T2), SO%(T3), 7S% (T4) and I00% (TS) in the five different diets .C. gariepinus fingerlings (average Weight 3.02g to 3.07g) were randomly distributed into plastic tanks with 10 fish/tank in triplicate treatments and were fed twice daily at 8:00am and 4:00pm per ...
Abstract The study investigated the effects of dietary fermented and autoclaved castor seed meal on growth performance, hematology and carcass composition of Clarias gariepinus fingerlings. 150 Clarias gariepinus fingerlings were randomly distributed into 5 groups of ten fish per tank each to five treatments. The experimental design is a complete randomise design in which there were three replicates for each treatment. The experimental diets which were designated 0%, 5%, 10%, 15% and 20% resp...
ABSTRACT One of the major cases of pollution has resulted from man's need for improvement in lifestyle and technology i.e. improvement technologies such as motorized vehicles and vessels. Man's need to maintain and keep these technologies on the move has led them to introduce maintenance products such as brake oil, carburetor cleaner, STP Oil wash etc. Of these products is ABRO Motor Flush which serve as oil wash for motors. ABRO Motor Flush containing naphthalene is a combustible liquid wi...
Abstract The worldwide increase in aquaculture production and the decrease of wild fish stocks has made the replacement of fish oil (FO) in aquafeed industry a priority. Therefore, the use of terrestrial animal fats and vegetable oils, which has lower cost and larger supplies, may be good as substitute for FO. This study investigate the effects of total replacement of FO by two terrestrial animal fats (pork lard and poultry fat) and three vegetable oils (palm kernel oil, shea butter oil and s...
ABSTRACT Ninety (90) hatchery bred fingerlings of Clarias gariepinus (mean weight: 0.96 ± 0.1g) were randomly placed in 15 plastic baths (25 litres each) at the Research laboratory and were exposed to different concentrations of oil products to determine their effects on the fish, to facilitate inferential deductions that will enhance effective aquatic environmental management. Three (3) replicate basins of 5 experimental treatments (crude oil, petrol oil, kerosene oil, engine oil and contro...
Abstract One of the major problems facing aquaculture is the inadequate supply of fish oil mostly used for fish feed man- ufacturing. The continued growth in aquaculture production cannot depend on this finite feed resources, therefore, it is imperative that cheap and readily available substitutes that do not compromise fish growth and fillet quality be found. To achieve this, a 12-week feeding trial with Heterobranchus longifilis fed diets differing in lipid source was conducted. Diets were ...
Abstract As the search for alternative sources of energy for non ruminants continues, this review was undertaken to examine the potential value of cassava (Manihot utilissima Pohl.), sweet potato (Ipomea batatas Poir.), cocoyam (Xanthosoma sagittifolium Schott.) and their by-products as dietary supplements for non ruminants. Studies on these roots and tubers showed that, on a dry-weight basis, contained 2.0 – 7.9% crude protein, 0.3 – 3.1% crude fibre and 72.4 – 77.9% starch. The practi...
This study investigated the effects of yeast on the growth and body composition of Heterobranchus longifilis. Fingerlings of Heterobrachus longifilis (mean weight 31.89 ± 0.4 g) were stocked ten fish in 35L of water in 54L capacity aquaria and fed varying levels of yeast in floating diets for 56 days. Four treatments having 1.0 g, 2.0 g, 3.0 g and 4.0 g yeast/100 g respectively with a control diet, were investigated in triplicates. The diets had 42.56 %, 43.32 %, 43.69 %, 43.86 % and 43.98% ...
Abstract This study investigated the effects of dietary palm oil (PO) on growth performance and carcass composition of Heterobranchus longifilis with the goal of replacing dietary fish oil with palm oil. In this study triplicate groups of H. longifilis fingerlings were fed the experimental diets for 8 weeks. Five isonitrogenous (45% crude protein), isoenergetic (20 KJg-1) experimental diets were made containing either 6.0% FO and 0% PO, 4.5% FO and 1.5% PO; 3.0% FO and 3.0% PO; 1.5% FO and 4....
Abstract The toxicity of Palm Oil Mill Effluent (POME) was investigated with emphasis on histopathological effects of Nile Tilapia (Oreochromis niloticus) juvenile. Static bioassay was conducted to determine the LC50 of POME to Nile tilapia fingerlings. The fishes were exposed to 0, 5, 25, 50 mg/l of POME. Histopathological examinations were performed on the gills and liver of Nile tilapia fingerlings exposed to POME under standard laboratory condition. 120 live and apparently healthy O. nilo...
Run-off containing a number of chemical solutions, which include herbicides, effluents, find their ways into the water bodies with a resultant negative effects on the aquatic ecosystem. This study sought to establish the effects of herbicide widely used in eradicating aquatic weed; Dizensate glyphosate (N- phosphonomethyl glycine) on Fingerlings of African catfish (Clarias gariepinus). The four day static bioassay was used to determine the median lethal concentration (LC50) and the value was ...
ABSTRACT The study utilized primary data collected from 80 respondents selected via multistage sampling procedure to analyzed the cost and return of aquaculture production in Ekiti State, Nigeria A predictive multiple regression model was estimated to determine the influence of cost of inputs on the farmer’s revenue. Profitability parameters such as Gross margin, Benefit-Cost Ratio (BCR), Return on Investment (ROI) and Percentage Profitability (PP) were used to estimate the profitability of...
Abstract The relationship between the morphology and fecundity of African River prawn (Macrobrachium vollenhovenii) in Asejire Reservoir, Nigeria was evaluated between March and August, 2014. A total of 209 M. vollenhovenii were collected during daytime from fishermen’s catch landed at Asejire Reservoir, Nigeria. Morphometric parameters and weight of each ovary were determined using graduated measuring board and OHAUS sensitive digital balance (Model CP4 13) to the nearest 0.1cm and 0.01 g ...
ABSTRACT The popularity of cucumber has been on the increase over the years due to its nutritional and economic benefits. A field experiment was conducted at Teaching and Research Farm, Federal University Oye-Ekiti, (Longitude 708070N, latitude 504960E) to evaluate the influence of companion plants on the yield and post-harvest quality of cucumber. The hybrid cucumber seeds were bought from Agro-dealers in Akure. The companion crops which include sunflower, mint and marigold seedlings were ob...
Ten genotypes of cowpea were grown in four environments comprising the early and late seasons of Ogbomoso and Abeokuta locations in 2005 and 2006. Joint linear regression analysis indicated the presence of Genotype x Environment interaction even though, a proportion was non-linear. The differences in the values of the regression coefficient and the correlation of grain yield revealed that the genotypes responded differently to the environments and that regression coefficient as a technique co...