Previous studies of the cricket Teleogryllus oceanicus have shown a paternity bias towards non-sibling males. Although non-kin-biased paternity could represent a mechanism of postcopulatory inbreeding avoidance by females, evolutionarily stable strategy (ESS) models of ejaculate evolution also predict that males should reduce their expenditure on the ejaculate when mating with their sisters. He...

Oogenesis in Drosophila requires a significant amount of phosphorus. Oocytes mature in follicles, each of which contains 15 highly polyploid, transcriptionally active chromosomes. We show that the demand for phosphorus is met in part from the male's ejaculate following mating. Females incorporate phosphorus-32 from radiolabelled males into their ovaries, specifically into their nucleic acids. M...

Equine hepacivirus (EqHV), equine pegivirus (EPgV) and Theiler's disease-associated virus (TDAV) are three novel equine viruses in the family Flaviviridae. EqHV and EPgV have been identified to circulate in the equine population worldwide, whereas TDAV has not been detected in equines since the first reported case. To date, no studies have focused on investigating EqHV, EPgV and TDAV in commerc...

Research in the area of equine breeding management has made major progress towards understanding the idiosyncrasies of equine reproduction since data was first reported at the Equine Nutrition and Physiology Society meeting in 1983. The purpose of this paper is to provide the horse industry with an overview of the types of technology equine scientists have developed as they relate to equine rep...

Although the primary function of mating is gamete transfer, male ejaculates contain numerous other substances that are produced by accessory glands and transferred to females during mating. Studies with several model organisms have shown that these substances can exert diverse behavioural and physiological effects on females, including altered longevity and reproductive output, yet a comprehens...

Sperm competition is widely recognized as a pervasive force of sexual selection. Theory predicts that across species increased risk of sperm competition should favor an increased expenditure on the ejaculate, a prediction for which there is much evidence. Sperm competition games have also been developed specifically for systems in which males adopt the alternative male mating tactics of sneakin...

most studies regarding the marrow-derived equine mesenchymal stem cells (mscs) have mainly focusedon the cell transplantation without considering the capacity of differentiation and in vitro requirements of thecells. these concerns were investigated in the present study. equine mscs were isolated from the sternalmarrow aspirates and expanded through two successive subcultures. passage-2 equine ...

The paper presents the results of a study of cultural characteristics of the strain A/equine/Otar/764/07 (H3N8) of equine influenza virus isolated from sick horse during the outbreak of equine influenza epizooty in the Republic of Kazakhstan. The studies determined the optimal culture conditions for equine influenza virus strain A/equine/Otar/764/07 (H3N8) in MDCK cell culture. The optimal infe...

The goal of this paper is to introduce and understand the equine veterinarians’ needs in their daily routines and develop a web-based support system to promote their work. An equine veterinarian works in both clinic and stable environments, which requires resilience and smart functionality from the support system’s interfaces. Especially when horse treatment is in the stable environment, a mobi...