title: Use of plasma progesterone profiles for the assessment of reproductive functions in indigenous Nigerian Zebu cattle.
abstract: The reproductive performance of Zebu cattle is generally low. However, blood concentrations of progesterone may be of practical value in assessing the reproductive status of the Zebu female. This paper reviews recent findings regarding plasma progesterone profiles during different phases of the reproductive cycle of some Nigerian Zebu cattle. The reproductive phases examined include the estrous cycle, early pregnancy and the postpartum periods. Our findings describe variations in plasma progesterone profiles observed under field conditions. The practical implications of these findings in assessing reproductive functions in indigenous Nigerian Zebu cattle are examined.
authors.affiliation: Department of Animal Reproduction and Artificial Insemination National Animal Production Research Institute (N.A.P.R.I.) P.M.B. 1096, Zaria, Nigeria.
authors.forename: E O
authors.initials: EO
authors.lastname: Oyedipe
authors.forename: N
authors.initials: N
authors.lastname: Pathiraja
authors.forename: A A
authors.initials: AA
authors.lastname: Voh
authors.forename: V
authors.initials: V
authors.lastname: Buvanendran