Metabolism and motility of turkey (Meleagris gallopavo) spermatozoa in the presence or absence of oxygen, glucose and fructose.
Sugar consumption by turkey spermatozoa for 1 hr at 37 degrees C was similar in the presence or absence of oxygen, and with glucose or fructose in the medium. Motility of the spermatozoa at the end of the above incubation period was lower under anaerobic than aerobic conditions. Fructose enhanced the oxygen uptake of spermatozoa in comparison with that in the glucose-containing medium. Omission of sugar from the medium depressed respiration but not motility of the spermatozoa. The rate of oxygen uptake by the spermatozoa during a 3-hr incubation period was higher in a 3.3-mM than a 15.0-mM glucose medium. Fructose was formed from glucose under aerobic but not under anaerobic conditions. Fructose originating from glucose was used for fructolysis, when the glucose reserve in the medium was almost exhausted.
Amir
D
D
Pinto
O
O
Schindler
H
H
Hurwitz
S
S
D000332:Aerobiosis; D000693:Anaerobiosis; D000818:Animals; D005632:Fructose / Q000378:metabolism; D005947:Glucose / Q000378:metabolism; D008297:Male; D010101:Oxygen Consumption; D013081:Sperm Motility; D013094:Spermatozoa / Q000502:physiology*; D014422:Turkeys / Q000502:physiology*
D005632:Fructose; D005947:Glucose