December 2008
Sustainability and impact of community water supply and sanitation programmes in Nigeria: An overview
One of the common features in Nigeria and indeed in many developing countries is that the impacts of community water and sanitation programmes are limited, because many of them are ill-conceived and are abandoned prematurely due to numerous attitudinal, institutional and economic factors. Thus, there is lack of sustainability in the sense of service delivery and upkeep of services. This paper proposes a set of pragmatic...
December 2008
Estimating the threshold value and loss distribution: Rice damaged by typhoons in Taiwan
We apply extreme value theory to determine the over-threshold peaks of the data and then use the Kolmogorv-Smirnov and Anderson-Darling goodness of fit tests to show that the generalized Pareto distribution fits the heavy-tailed distribution better than the Lognormal, Gamma, Weibull and Normal distributions in rice damaged by typhoons. The appropriate of the threshold value and probable maximum...
December 2008
Toxicity of glyphosate herbicide on Nile tilapia (Oreochromis niloticus) juvenile
Fish are particularly sensitive to a wide variety of agrochemicals including glyphosate herbicide that may arise from not only deliberate discharge of these chemicals into waterways but also from approved agricultural practices. In the present study, the toxicity of glyphosate an herbicide was investigated with emphasis on histopathological effects. Nile tilapias (Oreochromis niloticus) juvenile 15 ± 1.0 g were...
December 2008
Effect of different levels of supplemental yeast (Saccharomyces cerevisiae) on performance, blood constituents and carcass characteristics of broiler chicks
The effect of feeding different levels of yeast Saccharomyces cerevisiae (SC) on growth performance, blood constituents and carcass characteristics of Ross broiler chicks was studied. An experiment of 42 days duration was conducted with a flock of 240 one day-old chicks. There were 4 dietary treatments each consisting of 6 replicates with 10 chicks in each replicate. The treatments were containing 0%...
December 2008
On station and on-farm evaluation of two Tanzania chicken ecotypes for body weights at different ages and for egg production
A study was carried out to evaluate genetic potential of two chicken ecotypes of Tanzania viz. Kuchi and Medium managed both under intensive and extensive management systems. Traits studied under intensive conditions included body weights at 8 (Bwt8), 12 (Bwt12), 16 (Bwt16), and 20 (Bwt20) weeks of age, age at sexual maturity (AFE), egg number in the first 90 days after sexual maturity (EN-90), egg...
December 2008
Integrated pest management (IPM) adoption among farmers in central agro-ecological zone of Delta State, Nigeria
The adoption of Integrated Pest Management (IPM) among farmers in Central Agro-ecological Zone of Delta State, Nigeria was assessed. Three hundred and twenty farmers were selected and interviewed with the use of structured interview schedule. The findings revealed that 15:63% of the farmers adopted the technology but extension contact was not encouraging. Result of the probit model analysis showed that marital status,...
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