The reproductive strategies of Cichlids: Hemichromis fasciatus, Oreochromis niloticus, Sarotherodon galilaeus and Tilapia zillii was studied from June, 2007 to December, 2008. The variability in egg –size (i.e. diameter) were measured using the micrometer eye-piece in a binocular microscope. Fecundity was estimated by direct enumeration and related to the fish species population. The sex ratio ...

Within the marine environment, per offspring investment (POI) is associated with modes in larval development; an increase in POI has often been described with a decrease in temperature, as evidenced along latitudinal clines. However, the environmental drivers of POI remain largely hypothetical and have not yet been tested within an evolutionary context. Here, we test the hypothesis that develop...

The study was done to predict egg weight from the external traits of Guinea fowl using statistical methods multiple linear regression (MLR) and tree analysis (RTA). A total 110 eggs a flock 23-week-old were evaluated. Egg (EW) traits: eggshell (ESW), polar diameter (EPD), equatorial (EED), shape index (ESI), surface area (ESA) measured. Descriptive statistics, Pearson correlation coefficients, ...

The ability of the "droplets" of kidney cells to segregate proteins is suggested by the work of Gerard and Cordier (I), Smetana and Johnson (2), Oliver, MacDowell, and Lee (3), Rather (4), and others. The question arises as to how the segregating ability of the droplets is related to the function of the enzymes (acid phosphatase, ribonuclease, desoxyribonuclcase, cathepsin, and/3-glucuronidase)...

KW-3902 (a newly synthesized adenosine A1-receptor antagonist) has potent diuretic and renal protective activities. We investigated the influence of the emulsion formulation on the pharmacokinetics of KW-3902 and its metabolite (M1) in rats using three different formulations, i.e., a lipid emulsion about 130 nm in diameter composed of egg yolk lecithin: soybean oil: oleic acid=1:1:0.048, a lipo...

Meloidogyne minor, first reported on potatoes in the Netherlands in 2004, is an emerging nematode pest in Europe. It damages turfgrass, particularly creeping bentgrass (Agrostis stolonifera) grown on sandy soils such as those of golf greens. However, little is known of the nematode’s life history and pathology. In this study, the spatial and temporal distribution of M. minor on a creeping bentg...

A major challenge in cell biology is to understand how nanometer-sized molecules can organize micrometer-sized cells in space and time. One solution in many animal cells is a radial array of microtubules called an aster, which is nucleated by a central organizing center and spans the entire cytoplasm. Frog (here Xenopus laevis) embryos are more than 1 mm in diameter and divide with a defined ge...