Summary A 96-hour bioassay was conducted using the water soluble fraction of a Nigerian light crude oil sample on Clarias gariepinus fingerlings. 0, 2.5, 5.0, 7.5 and 10 mls of water soluble fractions (WSF) of the oil were added to 1000 litres of de-chlorinated tap water to form 0, 25, 50 , 75 and 100 parts per million representing treatments 1 to 5 respectively. Each treatment had two replicates with fifteen fish per replicate. At the end of the 96-hour period of exposure, the fish were tra...
ABSTRACT Users of wood still have preferences despite increasing reduction in the availability of wood species. This study was therefore carried out to assess the users’ preferences for sawn wood species in Ibadan metropolis, Nigeria. A cross-sectional survey study, which employed questionnaire and on-site observations, was used. A sample of 210 respondents was purposively selected from twenty one associations’ of sawn wood users comprising mixtures of active furniture makers and carpent...
Abstract This study was carried out to estimate the value of the environmental service functions of Uzere mangrove forest using the Willingness to pay method. Structured questionnaires were used to obtain information on the willingness to pay (WTP) for environmental service functions of Uzere mangrove forest. Contingent valuation approach was used to elicit information on WTP and the socio-economic variables that influence the WTP. Data were obtained from a systematically sampled 300 residen...
ABSTRACT The study evaluated the willingness of Herbal Medicine Practitioners (HMPs) and Herb Vendors (HVs) in Ibadan, Nigeria to contribute financially to medicinal plants conservation projects. Data was collected using structured questionnaires administered on 124 HMPs and 83 HVs randomly selected from fourteen herbal associations and marketers respectively. Results showed that 79.03%of all HMPs were males and 20.97% females while 83.13% of HVs were females and 16.87% males. All the HMPs an...
ABSTRACT A laboratory evaluation of cashew nut shell liquid (CNSL) as wood preservative on sapwood of Triplochiton scleroxylon test blocks sawn into 20mm x 20mm x 300mm sizes against Trametes cingulata and Lentinus lepideus was studied using crushing method. The crude extract was diluted with n-hexane, volume for volume. Four levels of CNSL concentration were tested at 4%, 8%, 12% and 16%. The treated test blocks and control test blocks were exposed to the infection regions of the pathogens i...
ABSTRACT This study was conducted to investigate the potential of tamarind fruits in jam production with a view to improving utilization efficiency of the fruits thereby adding value to the tree and encouraging its cultivation and sustainable management. The fruits for the study were collected from Bishop Ajayi Crowther University, in Atiba Local Government Area of Oyo town, Oyo State and Taironi Local Government Area of Kano State, Nigeria. The jam was prepared using variable proportions of...
ABSTRACT This study investigated agricultural students' knowledge and perception of biotechnology issues. The study was carried out at the Faculty of Agriculture and Forestry of the University of Ibadan. Proportionate sampling method was used to select a sample size of two hundred and sixty four (264) respondents. Variables measured included respondents' demographics, biotechnology information sources, knowledge and perception. The data were analyzed using frequencies, percentages and mean fo...
ABSTRACT Medicinal plants and plant-based medicines are widely used in traditional cultures all over Ghana and they are becoming increasingly popular in modern society as natural alternatives to synthetic chemicals. This paper studied the ethnobotany of medicinal plants through a socio-economic survey. Seed germination experiments were also carried out on selected medicinal plant species. It was found that the herbal medicine industry was a major source of income for 82% of the respondents. A...
ABSTRACT Upsurge in population has resulted in pressure on many tree species including Vitellaria paradoxa C.F.Gaertn.and Parkia biglobosa (Jacq.) Benth. These species are highly valued for their socio economic potentials. The study therefore assessed the contribution of V. paradoxa and P. biglobosa to rural livelihood in Oyo State, Nigeria with a view to generating information on the socio-economic values of the species to the rural communities. Stratified sampling technique was used to div...
ABSTRACT Thirty-six 5-6 weeks old, local mixed crossbred rabbits (526.7 ± 0.2 g) were allocated to four treatments according to their initial weight. They were caged individually and recovered ad libitum during 7 weeks, one of the 4 diets in which maize offal was replaced by 0, 2, 5 or 10 % dried palm oil mill effluent (Pome), respectively diets 1 to 4. The diets were fed as mash. The mean voluntary feed intake were not significantly different as the level of palm oil mill effluent in the di...
ABSTRACT Offa Local Government Area is one of the major sweet-potato growing areas of Nigeria . Sweet potato is grown mainly on smallholder farms and concentrated particularly in communities in Offa Local GovernmentArea. This study randomly selected 90 small scale farmers purposively from 9 communities to investigate constraints to production, processing and marketing of sweet-potato. Data were collected using an interview schedule. Results indicated that yields of 4-7 tonnes per hectare obt...
ABSTRACT Animal Scientists, through extensive research works have made tremendous achievements on reclaiming the nutrients contained in poultry waste by using it as feed ingredient for different classes of animals thereby reducing feed cost. Despite the many ways o f its utility, ‘ the slurry nature o f poultry droppings, most often complicates its handling and renders it totally useless. Four graded levels of dietary sodium chloride (0.30%, 0.45%, 0.60%, 0.75%) in an iso-nitrogenous and is...
Abstract The study was carried out to investigate the prevalence and utilization of non-timber forest products (NTFPs) plant species in Omo and Shasha Forest Reserves, Southwestern Nigeria. Data were obtained through the use of structured questionnaires administered to households in forest communities. To complement information from the household survey, focus group discussions (FGDs) were also carried out in each of the sampled communities. In-depth interview (IDI) of forestry staff was fur...
ABSTRACT Sustainable forest management, when backed with appropriate policy instruments and legal administration will promote improved livelihoods of forest dependants without sacrificing inherited forest biodiversity and its future potential. These are contradictory demands from different stakeholders. While meeting livelihood expectations of forest dependants may seem an affective issue, it may become substantive when their needs are not adequately planned for and they have to meet it withi...
ABSTRACT Population growth and unregulated settlement pattern impede biodiversity conservation especially in urban areas. This paper investigated the perception of urban residents in Ibadan metropolis, Nigeria on improving the environment through urban greening and renewal. Respondents were drawn from residents of two educational institutions (University of Ibadan and The Polytechnic, Ibadan) and their respective adjoining communities (Agbowo and Apete). Relevant information was obtained fro...