Research: female mice mated with males not avoid pain

Female mice were much more interested in the scent of healthy male rats compared to males that sickly.ScienceDaily website cites research that has been published from Konrad Lorenz Institute for Ethology in Vienna Vetmeduni.Currently, the research team went further animal behavior and conduct tests a general assumption is that attractive males have a more successful marriage than males who do not.Females mate with males also unhealthy.Sarah Zala and Dustin Penn has investigated whether females will choose healthy males than in males infected if given the choice. In the laboratory, in spacious enclosures, females left free to choose between two males, one healthy and one mild infection, as previously they've found to change the scent.The majority of females, approximately 86 per cent, at first more interested in healthy males. However, that is not healthy males also be an option as a mating partner."It surprised us. We assume the female will choose healthy males. It is not only minimize the possibility of infection, but choose a healthy mate, and disease resistance will also greatly benefit their children," said Zala.Common Polyandri female rats.Genetic analysis of children mice revealed approximately 30 percent of the child's parent mice had two male, healthy and which are not."A lot of female rats mated with male mice are healthy or not," said Zala. "We suspect the female rats did this to protect her children. Male rats mating rejected the possibility of doing infanticide in order to get a chance to be the father of the children.""Females recognize if the stud is healthy or not. We see it quite clearly. But why do they keep doing the stud unhealthy marriage is still a mystery," says Dustin Penn.Later, Zala and Penn intends to conduct in-depth research the effects of infection on mouse body scent."Until now, most researchers assume the females choose their partners depending on the male body odor or sexual traits more important. Our study shows that is not the case," said Zala. The situation may be different in the wild. Because females recognize healthy males based on body odor, and more interested in them, chances are they would prefer healthy males when in the wild. In the end the body odor is still an important factor in sexual selection-determination.

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