A considerable number of research reports giving the intervals between estrus are available. These also list the percentage of females that do not show estrus at the expected time, but the ovarian condition or the causes of these irregularities either were unknown or were not described.
No takes yet. Share an insight, caveat, or question.
G. W. Trimberger (1956) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: