[Ed. – Not sure what all this trend might portend, but it can’t be good.]
Sperm quality in dogs has fallen rapidly over the past three decades, a trend which could help explain the purported decline in human fertility.
The finding has highlighted a potential link between environmental contaminants and fertility – after scientists discovered chemicals which had a detrimental effect on sperm function in some commercially available pet foods.
Researchers at the University of Nottingham believe that the study could help explain the reported significant decline in human semen quality.
“This is the first time that such a decline in male fertility has been reported in the dog and we believe this is due to environmental contaminants, some of which we have detected in dog food and in the sperm and testes of the animals themselves,” said Richard Lea, reader in reproductive biology at the university’s School of Veterinary Medicine and Science, who led the research.