ABSTRACT Limited use of cereal straws in livestock feeding is due to their low voluntary intake, low protein contents and low digestibility. Nutritional value of these roughages can be improved through chemical, physical or biological methods. Efficacy of treating straw with urea for improving its nutritive value is considered equivalent to anhydrous or aqueous ammonia. However, the adoption rate of urea treatment by farmers is low, maybe due to relatively tedious technology and higher requ...
The electrophoretic resolution of DNA is carried out on a gel matrix of agarose or polyacrylamide. Agarose is used for horizontal electrophoretic procedure while polyacrylamide gel is used in vertical procedures. Agarose gels are used and cast by boiling agarose in a suitable dilute buffer, pouring into a mould and then allow it to solidify to form a matrix. The porosity of the formed matrix decreases with an increase in agarose concentration. When the DNA samples are loaded in an applied ele...
ABSTRACT The ineffectiveness of the strategies traditionally employed by science teachers has been attested to by several researchers. Thus research in science education has continued to seek for more effective ways of teaching science in general and biology in particular in order to ensure meaningful learning. Therefore, this study examined Senior secondary school students cognitive achievement in selected biology concepts using Mercedes model with embedded assessment strategies. The study a...
ABSTRACT This study evaluated the Integrated Science and Introductory Technology curricula contents as well as their implementation in secondary schools in Benue State. Twelve research questions were answered and six hypotheses tested in this study. The study employed a survey design and six instruments were used to collect data from 50 secondary schools selected from 246 schools in the State using the Probability Proportionate to Size (PPS) sampling technique, 10 experts each in the fields ...
The extent to which people can take full advantage of the benefit of technology as well as to recognise, address or even avoid some of its pitfall largely depend on their level of technological literacy. The extent to which vocational and technical education (VTE) students in Delta State sufficiently possess the knowledge of technology is not known. This situation necessitated the assessment of the level of technological literacy possessed by VTE students in tertiary institutions in Delta...
ABSTRACT This study examined the effects of multimedia instructional strategies on chemistry students’ science process skills acquisition and achievement in Kano state. Six research questions and six null hypotheses guided the study. Researchers have revealed that students perform poorly in practical chemistry in spite of all that has been done to improve science teaching and learning in secondary schools. This situation could hamper their overall achievement in chemistry and therefore cou...