Background: Many hormones are involved in the regulation of reproduction. Leptin hormone which is mainly secreted by adipose tissue plays an important role in energy homeostasis and reproduction. It seems that leptin is an important linkage between body metabolism and reproductive system. Moreover, it has been shown that leptin and leptin receptor express in reproductive organs of some species....

production, reproduction, management and economic parameters resulted from recordings of 5 flocks comprised of 720 heads of native goats during annual cycle of reproduction in transhumance, village and farming systems were employed to determine the performance of traits, cost-profit analysis as well as breeding objective. the overall mean for number of salable kid per goat in transhumance, vill...

The reproductive division of labour between queen and worker castes in social insects is a defining characteristic of eusociality and a classic example of phenotypic plasticity. Whether social insect larvae develop into queens or workers has long been thought to be determined by environmental cues, i.e. larvae are developmentally totipotent. Contrary to this paradigm, several recent studies hav...

Metameric reproduction systems (e.g. ICC-based systems) are successfully used around the world today. For distinct applications, however, such as artwork reproduction, proofing or high accurate industrial color communication, systematic limitations avoid satisfying results. This paper discovers the systematic problems of metameric reproduction systems and introduces a spectral-based workflow th...

background: brownbanded bamboo sharks (chiloscyllium punctatum) is one of the cartilaginous fish that lives in the persian gulf. objectves: the purpose of the present study is to study the effects of thyroid hormone on reproductive system of this specious. methods: in this investigation, 36 individual of brownbanded bamboo sharks (chiloscyllium punctatum) in both autumn (before reproduction) an...