OBJECTIVE To evaluate the efficacy of fish as predators of the Aedes aegypti larvae in laboratory conditions. METHODS The male and female of five different fish were included in the experiment. The tests to measure their consumption ability lasted five weeks for each species. Each trial involved four test tanks and four control tanks. Two control tanks contained just one fish, and the other t...

In the present study, nested polymerase chain reaction-single-strand conformation polymorphism (nested PCR-SSCP) was used for detection of point mutations in flower color genes in Salvia splendens. Totally 916 bp of Ss5MaT1 cDNA segments were obtained in eight varieties of Salvia splendens flowers by RT-PCR. Four sets of specific primers were synthesized according to the obtained cDNA cloning f...

Feeding Ecology and Pest Status of the Mole rats (Tachyoryctes splendens) in Farmland, Masha, Southwest Ethiopia Yidnekachew Arega Terefe Addis Ababa Univertsity, 2017 A study on the abundance, distribution, feeding habit, pest status and impacts of mole rats on agricultural productivity was carried out on the farmlands of Masha during July, 2016 ─ February, 2017. Two study sites (Beto and Gemb...

This study investigated the effects of nesting status and the presence of an audience on 11-ketotestosterone (11KT) levels in male Siamese fighting fish, Betta splendens. Prior studies have demonstrated that both nesting status, an indicator of territory-holding power and reproductive state, and the sex of a conspecific audience lead to differences in male behavior during aggressive encounters....

Abstract For ectothermic insects, their colour and size are important determinants of body temperature: larger bodies require more heat to reach a certain temperature, dark colours absorb efficiently. These expressed using melanin, which has been intimately linked with the thermoregulatory capabilities insects. Melanin is also immune defence often used as secondary sexual character in There pot...

Acknowledgments First of all I would like to thank professor Gunther Roland for supervising my thesis and, most of all, the guidance and training during the two years in which I stayed in this group. I would also like to thank Yen-jie Lee, who gave me a lot of advice on the possible ways to progress on the study. Finally I would like to thank my advisor, professor Wit Busza, and everyone who he...

The objective of this study was to evaluate the effects hydroalcoholic jabuticaba bark on diets female blue Betta splendens in relation level digestive enzymes, liver metabolism, and antioxidant activity. sample constituted 150 individuals subdivided into five groups triplicate, totaling 10 fish per 20 L experimental unit. Commercial (40.88% CP 4374.8 Kcal kg-1) were added (EJB) extract concent...