Seasonal variation of LH and testosterone in the smallest deer, the pudu (Pudu puda molina) and its relationship to the antler cycle.
1. In order to obtain a seasonal profile of LH, three adult male pudu (Pudu puda, Molina) were sampled monthly from the saphenous vein for a period of one year. 2. A significant circannual variation of plasma LH levels was detected with an average peak value (1.77 ng/ml) recorded in February and nadir concentrations (0.19 ng/ml) observed in November. 3. The peak level of testosterone (1.54 ng/ml) was detected in March, the time of the rut.
Reyes
E
E
Facultad de Ciencia Biologicas, Universidad de Concepcion, Chile.
Munoz
P
P
Recabarren
S
S
Torres
P
P
Bubenik
G A
GA
D000818:Animals; D000999:Antlers / Q000254:growth & development / Q000502:physiology*; D003670:Deer / Q000378:metabolism*; D007986:Luteinizing Hormone / Q000097:blood*; D008297:Male; D011863:Radioimmunoassay; D012621:Seasons; D013739:Testosterone / Q000097:blood*
D013739:Testosterone; D007986:Luteinizing Hormone