In this study, the effect of buck presence on serum progesterone, estrogen and FSH levels during premating in 20 female Akkeçi goats was investigated. The were assigned to two groups as follows: control group (n = 10) treatment 10). At beginning first blood samples (day 0) taken from each goat kept isolated away bucks at mating season. day 13, placed a pen next to, that order provide effect. Se...

Recent studies on the Mediterranean fruit fly (medfly), Ceratitis capitata (Wied.), have demonstrated an increase in male mating competitiveness following exposure to particular plant structures or products, including the fruit and fruit-derived oil of orange trees, the bark and fruits of guava trees, and ginger root oil. Although it is not known which compound(s) was responsible for the enhanc...

SINGH and HALE ( 1 990) propose that differences in mating preference and mating speed of Drosophila pseudoobscura females from Bogota and California may explain the frequency changes of mitochondrial DNA (mtDNA) haplotypes that we (MACRAE and ANDERSON 1988) observed in population cages. In the course of considering various aspects of mating behavior as possible causes for the frequency changes...

Previous studies have implicated oxytocin (OT) in the control of surge-type PRL secretion in the pregnant and pseudopregnant rat. The present studies examined the relationship between mating-induced activation of OT neurons in the paraventricular (PVN), supraoptic (SON), and anterior commissural (ACN) nuclei and PRL secretion. Activity within OTergic neurons, as measured by increased c-fos expr...

This paper introduces the concept of a dynamic key infrastructure for Grid. It utilises the properties of Identity-based Cryptography (IBC) to simplify key management techniques used in current Public Key Infrastructure (PKI) settings for Grid. This approach can offer greater simplicity, flexibility, and enhanced computation trade-offs.

A new study shows that female fruitflies eat more after mating, and that a multi-functional peptide provided in the seminal fluid of their mates induces this behavior. These findings contribute significantly to our understanding of mating behaviors and resource allocation, and may provide insights useful for controlling the reproduction of insect pests.