Reproductive parameters of male crab-eating foxes (Cerdocyon thous) subjected to pharmacological semen collection by urethral catheterization
Semen collection
DOI:
10.1016/j.therwi.2022.100004
Publication Date:
2022-07-04T17:18:36Z
AUTHORS (10)
ABSTRACT
The crab-eating fox inhabits all Brazilian biomes, but little is known about its in situ reproduction. objective of this study was to assess the pharmacological semen collection by urethral catheterization foxes. In addition, we compare seminal and reproductive biometric parameters between juveniles adults, as well breeding season (June September) non-breeding (October May). For study, free-living foxes (individuals n = 8; adult 6 juvenile 2; capture events N 10) were captured Pantanal using Tomahawk traps. Biometric parameters, such testis volume, differed there no difference when comparing adults across seasons. All eight attempts collect from successful, unsuccessful. average volume (±SD) 39.13 ± 21.98 µL, with motility averaging 40 29.01 % vigor 2.57 0.79. sperm concentration 277.57 298.74 × 106 sperm/mL, percentage morphologically normal 50.1 14.7 on average. Significant increases observed motility, concentration, proportion morphology during season. It first time that has been performed species collected C. thous. results suggest male exhibit temporal variation quality, providing additional evidence a seasonal breeder.
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