Plasma progesterone changes and length of oestrous cycle in Rusa Deer (Rusa timorensis)

A study was conducted to profile the plasma progesterone (P₄) concentrations and establish the length of oestrous cycle in the Rusa timorensis during the breeding season. Five healthy hinds were selected for peripheral blood sampling twice weekly to gauge the P₄ levels by radioimmunoassay, at the st...

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Bibliographic Details
Published in:Animal reproduction science 2013-10, Vol.141 (3-4), p.148-153
Main Authors: Mahre, M.B, Wahid, H, Rosnina, Y, Jesse, F.F.A, Azlan, C.A, Yap, K.C
Format: Article
Language:English
Subjects:
Animals
blood sampling
breeding season
deer
Deer - blood
Deer - physiology
epithelial cells
Estrous Cycle - blood
Estrous Cycle - physiology
estrus
Estrus - physiology
Estrus cycle
Female
males
Progesterone
Progesterone - blood
Rusa
Rusa deer
Rusa timorensis
Time Factors
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Summary:A study was conducted to profile the plasma progesterone (P₄) concentrations and establish the length of oestrous cycle in the Rusa timorensis during the breeding season. Five healthy hinds were selected for peripheral blood sampling twice weekly to gauge the P₄ levels by radioimmunoassay, at the start of the breeding season indicated by rutting behaviours of sexually active males. The hinds were polyestrous as proven by the cyclic trend of P₄ levels. After the presumptive oestrus indicated by the lowest P₄ concentrations (0.20±0.09ng/ml), this ovarian hormone was markedly elevated on day 7 of the cycle (0.78±0.20ng/ml), reached its peak (2.61±0.23ng/ml, P
ISSN:0378-4320
1873-2232
DOI:10.1016/j.anireprosci.2013.07.012