[Post-partum ovarian activity in Sardinian ewes].
Ovarian activity, assessed by the plasma progesterone concentrations, were studied in four groups of Sardinian breed sheep with different lambing season. The resumption of ovarian activity was shorter and similarly the proportion of ewes which had resumed ovarian activity in response to introduction of rams was greater in sheep with November and December rather than January and March lambings. The resumption of oestrus activity was delayed in sheep with a high level of lactation.
Cappai
P
P
Casu
S
S
Gallus
M
M
Naitana
S
S
Loi
P
P
D000818:Animals; D004971:Estrus; D005260:Female; D007774:Lactation; D010053:Ovary / Q000502:physiology*; D049590:Postpartum Period / Q000502:physiology*; D011247:Pregnancy; D011374:Progesterone / Q000097:blood; D012621:Seasons; D012726:Sexual Behavior, Animal; D012756:Sheep / Q000502:physiology*
D011374:Progesterone
Attività ovarica post-partum nella pecora di razza Sarda.