Período de permanência de espermatozoides em glândulas hospedeiras de espermatozoides e glândulas infundibulares em codorna de corte

Abstract

Sperm-Storage Tubules (SSPs) and Infundibular Tubules (ITs) are the structures responsible for sperm storage in the oviduct of birds, snakes, alligators and turtles after mating. Aiming to determine length of stay of sperm-storage tubules (SSPs) and infundibular tubules (ITs) cutting quail, Coturnix coturnix coturnix, we used 12 males and 66 females, totaling 79 quails in the reproductive phase. The females were allocated into 11 groups and mated for 24 hours in individual cages. The males used were merged and separated from contact with females and placed at rest. The poultry of the control-group (G0 six females) was slaughtered at the beginning of the experiment, the 60 previously mated females were allocated into 10 groups (G1 to G10, with six females each) and were slaughtered sequentially. On the 10th day, the last group (G10) was shot. The fragments obtained from the utero-vaginal region and the infundibulum of each female underwent histological techniques, immunohistochemistry and morphometry routine. The morphometric results showed that GHEs had 46% of the sperm in his heat on day 1 after mating, decreasing gradually in the after days reaching 3% on day 5. At this time they increase toward the infundibular tubules, where they remain viable and fertile for at least another 96 hours (4 days) after leaving the SSPs, allowing these birds to lay fertile eggs for 10 days on average after mating.