News tagged with sperm quality

All sperm are not equal

An experimental study from researchers at Uppsala University provides evidence that in Atlantic salmon, selection acting upon sperm phenotypes within a single ejaculate of a male affects the time until hatching in the resulting ...

Feb 13, 2014 not rated yet 0

Improving sperm quality in elephants

(Phys.org) —Crushed by habitat loss and poaching, Asian elephants are at risk, and their future rests heavily on captive breeding programs. A collaborative study between Cornell and Smithsonian scientists ...

Nov 27, 2013 1 / 5 (1) 0

Good males are bad fathers

Contrary to predictions, males of high genetic quality are not very successful when it comes to fertilizing eggs. A new study on seed beetles by Swedish and Danish scientists Göran Arnqvist and Trine Bilde shows that when ...

Jun 25, 2009 3.8 / 5 (4) 2