in this study, the energy reserves of prediapause and diapausing adult bugs were examined using colorimetric biochemical techniques to determine carbohydrates, lipids, glycogen, and protein content. to this end, 45-day-old bugs were obtained from three different sources: laboratory colony, cold-stored insects, or natural habitat. the results showed that prediapause males and females had signifi...

Of the many factors which affect animal production, wildlife is one of the few which has rarely been considered by the Australian Society of Animal Production. A variety of non-domesticated mammals are closely associated with the livestock industries and those which cause production losses are referred to as vertebrate pests in this contract. In some States this definition is carried further by...

The production and use of chemicals is an important source of economic welfare in Ghana. However, many chemicals also enter the environment and chemical pollution remains a major environmental issue in Ghana. In Ghana, mining and agriculture remain the major contributors to chemical pollution. For mining; mercury, cyanide and arsenic are normally the reported cases of contamination. Studies hav...

The aims of the present study were to compare hydrodynamics of three pericardial and two porcine valves while performing at different stroke volume (SV) and increasing pulse rate (PR). Carpentier-Edwards Magna-21 (CEM), Sorin Soprano-20 (SS), Mitroflow-23 (MF), SJM-Biocor-Epic-Supra-21 (SJME), and Medtronic Mosaic Ultra-23 (MMU) were tested in the aortic chamber (23-mm in diameter) of the Sheff...

Several potential cover crops were evaluated for their susceptibility to Meloidogyne arenaria race 1, M. incognita race 1, and M. javanica in a series of five greenhouse experiments. No galls or egg masses were observed on roots of castor (Ricinus communis), cowpea (Vigna unguiculata cv. Iron Clay), crotalaria (Crotalaria spectabilis), or American jointvetch (Aeschynomene americana). Occasional...

Background: Sunn hemp (Crotalaria juncea L.) is an important annual legume used as green manure. It contains pyrrolizidine alkaloids, which are apparently effective in suppressing nematodes. pertinent to know the growth stage during alkaloid concentrations become higher. Methods: The period of days necessary for flowering, pod and one pods at different stages five sunn cultivars with May July s...

Crop rotation is a common means of reducing pathogen populations in soil. Several rotation crops have been shown to reduce soybean cyst nematode (Heterodera glycines) populations, but a comprehensive study of the optimal crops is needed. A greenhouse study was conducted to determine the effect of growth and decomposition of 46 crops on population density of H. glycines. Crops were sown in soil ...

Maize is an ideal forage crop for ensilage because of its high levels fermentable carbohydrates, although it low in protein. Sunn hemp a legume with crude protein content potential to be used combination maize provide silage higher content. Different percentages sunn hemp-maize mixtures 80-20, 60-40, 40-60 and 20-80 respectively were compared silages sole hemp. In the laboratory study, DLG clas...