Agriculture

Agriculture Research Papers/Topics

Effect of dietary palm oil on growth and carcass composition of Heterobranchus longifilis fingerlings

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....

Histopathological Effects Of Acutely Toxic Levels Of Palm Oil Mill Effluent On Gill And Liver Of Nile Tilapia Fingerlings

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...

Toxicity of dizensate (Glyphosate herbicide) on Clarias gariepinus fingerlings

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 ...

PROFITABILITY ANALYSIS OF AQUACULTURE IN EKITI STATE, NIGERIA

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...

Morpho-Fecundity of Berried African River Prawn (Macrobrachium vollenhovenii) in Asejire Reservoir, Nigeria

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 ...

YIELD AND POST-HARVEST QUALITIES OF CUCUMBER AS INFLUENCED BY COMPANION PLANTING

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...

Assessment of selection techniques in genotype X environment interaction in cowpea Vigna unguiculata (L.) walp

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...

Classification of genetic diversity and choice of parents for hybridization in cowpea Vigna unguiculata (L.) Walp for humid savanna ecology

Thirty-one accessions of cowpea of diverse eco-geographic origins were evaluated for genetic diversity using principal component analysis (PCA), single linkage cluster analysis (SLCA) and canonical techniques. The accessions were classified into six groups by PCA and SLCA while canonical technique identified five vector groups. There was no relationship between the clustering pattern and eco-geographic distribution. PCA and canonical techniques can be jointly used in multivariate analysis as ...

EFFECTS OF LEVEL OF POULTRY MANURE ON YIELD AND POST – HARVET QUALITY OF CELOSIA ORGENTIA

BSTRACT A field experiment was conducted at the Department of Agronomy, University of Ibadan to asses the effect of four levels of poultry manure on yield and post – harvest quality of celosia argentina. The levels of poultry manure used were 0, 10, 30 and 50t/ha. The growth and yield parameters measured were plant height, number of leaves, number of branches, fresh weight and total yield. The post harvest parameters were measured under three storage conditions i.e Ambient (25 – 270c) Eva...

EFFECTS OF SOIL AMENDMENTS ON POSTHARVEST QUALITY OKRA FRUITS

ABSTRACT In Nigeria farmers apply fertilizers arbitrarily without considering the resultant effect on soil and the postharvest quality of crops. This study was therefore designed to investigate the effects of NPK fertilizer 20:10:10 on the postharvest quality of okra fruit (Abelmoschus esculentus L. Moen). Okra seeds NHE-47 were sown in the field at the National Institute of Horticultural Research (NIHORT), Idi-Ishin, Ibadan, Nigeria at a spacing of 50 cm x 25 cm. The fertilizer NPK 20-10-10 ...

Rice Yield and Yield Components as Influenced by Phosphorus and Nitrogen Application Rates in the Moist Savanna of West Africa

Abstract: A two-year field experiment was conducted to evaluate the influence of nitrogen (0, 30, 60, and 120 kg N ha-1) and phosphorus (0, 30, and 60 kg P2O5 ha-1) application on grain yield and yield components of five New Rice for Africa (NERICA) cultivars, their parents, and a check on a degraded soil in the moist savanna of Nigeria. Nerica 14 recorded the highest grain yield of 1.3 mg ha-1compared to the other NERICA cultivars. It also produced significantly (P < 0.05) longer panicles (1...

EVALUATION OF POST HARVEST HANDLING OF PEPPER FRUIT (Capsicum frutescens) BY MARKETERS IN IBADAN METROPOLIS, OYO STATE, NIGERIA

ABSTRACT  The study examined post harvest handling methods of pepper fruit  and constrains faced by handlers. Multistage sampling technique was used to select respondents. Five markets were purposively selective in Ibadan, Oyo State. Namely Sasa, Bodija, Erunmu, Station and Odo-Ori where 20 respondents each were randomly selected. Structured questionnaire was used to obtain information from the respondents. Data were analysed using frequency distribution.  The Pepper fruit marketers mean a...

Upland rice based intercropping system among farmers in selected villages in Ogun State in South west of Nigeria

Rapid Rural Appraisals (RRA) were conducted among one hundred and fifty five farmers in rice growing areas of Obafemi/Owode and Ifo Local Government Areas of Ogun State in South-West of Nigeria to investigate farmers’ practices of growing rice in rice/cassava intercropping system in 2007. The farmers in these villages cultivated 2 to 4 farms with an average farm size of about 2 ha. Results from the RRA showed that the farmers have been growing rice for over 21 years. About 31% of the farmer...

EFFECTS OF SOIL AMENDMENTS ON GROWTH AND YIELD OF PEPPER (Capsicum frutescens L.) FRUITS

 ABSTRACT        Research was conducted at Federal College of Agriculture, Akure between March to August 2010  and 2011 to evaluate the effects of organic and inorganic fertilizers on growth and yield of pepper fruits. Pepper fruit (Capsicum frutescens) Long Cayenne was procured at the seed section of department of Agronomy University of Ibadan and raised for six weeks in the green house before transplanting to the field at a spacing of 70 cm x 50 cm inter and intra row spacing respect...

Effects of organic and inorganic soil amendments on growth performance of plantain (Musa paradisiaca L.)

A field experiment was conducted to investigate the comparative effects of organic and inorganic soil amendments on growth and performance of plantain (Musa paradisiaca). The experiment was established in March 2011 and repeated in February 2012. The treatments consisted of nine soil amendments (NPK sole, Jatropha sole, palm kernel cake (PKC) residue sole, Sunshine organo-mineral sole, NPK + Jatropha husk 50:50, Sunshine organo-mineral + Jatropha husk 50:50, PKC residue + NPK 50:50, PKC resid...


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