Age-dependent changes in metabolic profile of turkey spermatozoa as assessed by NMR analysis
Metabolic profile of fresh turkey spermatozoa at three different reproductive period ages,
namely 32, 44 and 56 weeks, was monitored by Nuclear Magnetic Resonance (NMR) spectroscopy
and correlated to sperm quality parameters. The age-related decrease in sperm
quality as indicated by reduction of sperm concentration, sperm mobility and osmotic tolerance
was associated to variation in the level of specific water-soluble and liposoluble metabolites.
In particular, the highest levels of isoleucine, phenylalanine, leucine, tyrosine and