September 2013
Nano lab-on-chip systems for biomedical and environmental monitoring
In recent years, nano lab-on-chip (NLOC) has emerged as a powerful tool for biosensing and an active area of research particularly in DNA genetic and genetic related investigations. Compared with conventional sensing techniques, distinctive advantages of using NLOC for biomedicine and other related area include ultra-high sensitivity, higher throughput, in-situ monitoring and lower cost....
September 2013
Male tilapia production techniques: A mini-review
Tilapia culture has been growing over the past decades as an excellent source of high-quality protein. Some of the Tilapia´s advantages are the ability to breed and produce new generations rapidly, tolerate shallow and turbid waters, resist a high level of disease and be flexible for culture under many different farming systems. These characteristics are the main reasons for its commercial success....
September 2013
Morphotypes vis-a-vis genetic parameters of Catla catla (Ham.) and Labeo rohita (Ham.) backcrosses
Backcross generations of Catla catla (Ham.) and Labeo rohita (Ham.) were developed in Central Agricultural Research Institute, Port Blair, South Andaman, India, using the technique of induced breeding for Indian Major Carps. The trend of morphometry through generation mean analysis indicates reduction of head size with respect to standard length, which is considered as a reduction of bone size within...
September 2013
Genetic differentiation of watermelon landraces in Mozambique using microsatellite markers
Landraces of seed and dessert type watermelons from three provinces of Mozambique with distinct agro-ecological conditions, including humid and semi-dry areas from the north to the south of the country, were analysed to assess their genetic differentiation. Ninety-six accessions (269 plants) were tested with 24 microsatellite markers resulting in 110 alleles. Analysis of molecular variance showed that 63% of the total...
September 2013
Effects of different chemical materials and cultural methods on growth and yield of winter wheat
To determine the effects of different chemical and cultural methods on the growth of winter wheat, six treatments were carried out: Conservational irrigation, non-irrigation, water absorbent polymers (WAP), liquid mulching film (LMF), water-saving irrigation(WSI) and subsoiling tillage (SST). The results show that winter wheat could use more water from soil profile though WAP, LMF and SST...
September 2013
Heritability, variance components and genetic advance of some yield and yield related traits in Ethiopian collections of finger millet (Eleusine coracana (L.) Gaertn.) genotypes
Eighty-eight (88) finger millet (Eleusine coracana (L.) Gaertn.) germplasm collections were tested using augmented randomized complete block design at Adet Agricultural Research Station in 2008 cropping season. The objective of this study was to find out heritability, variance components, variability and genetic advance for some yield and yield related agronomic characters. Statistically significant (p<0.01)...
September 2013
Effect of sunlight shielding on leaf structure and amino acids concentration of light sensitive albino tea plant
Light sensitive albino tea cultivar ‘Jinguang’ (Camellia sinensis) which grows albinism leaf in yellow colour, results to high level of amino acids but low levels of photosynthetic pigments including chlorophylls, neoxanthin, violaxanthin, phytoxanthin and β-carotene when it is exposed to high sunlight illumination in the summer season. In this case, the chloroplasts showed partially lysed, with few...
September 2013
Phytase activity of fungi from oil polluted soils and their ability to degrade bonnylight crude oil
Fungi were isolated from contaminated soil samples taken from three selected automobile workshops, screened for phytase activities and biodegradative abilities. Physicochemical and total petroleum hydrocarbon analyses were carried using standard chemical and gas chromatography procedures, respectively. There was significant increase (at P≤0.05) in the potassium, sodium, calcium, magnesium, pH and organic matter of...
September 2013
Chemical and organoleptic evaluation of fermented maize (Zea mays) gruel supplemented with fermented cowpea (Vigna unguiculata) flour and roasted melon seed (Citrullus vulgaris) paste
This work examined the chemical and organoleptic profile of fermented maize gruel enriched with roasted melon and fermented local species of cowpea (oraludi). The chemical composition of the processed food samples were assessed using standard methods. Blends were formulated in the ratio of 70: 30 (14 g protein basis) of maize gruel and cowpea flour or melon paste; and 70: 20: 10 (14 g protein basis) of maize...
September 2013
The role of alpha and beta adrenergic receptors in cortisol-induced hyperglycaemia in the common African toad (Bufo regularis)
The role of adrenergic receptors in cortisol-induced hyperglycaemia is not well known. The present study investigated the effects of adrenergic receptor blockers in cortisol-induced hyperglycaemia in the common African toad (Bufo regularis). Each toad was fasted and anesthetized with sodium pentobarbitone (3 mg/100 g i.p). The animals (control) received intravenous (i.v) injection of 0.7% amphibian saline while animals...
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