There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.
In the first 11 days of pregnancy, progesterone and prolactin levels were significantly
correlated (P less than 0.05), positively in December-mated animals (r = 0.889) and
negatively in those mated in March (r = 0.865).