RabbitPresent
ovulation without any or only weak oestrus behaviour
silent ovulation
HorsePresent
suboestrus
suboestrus
SheepPresent
MousePresent
PigPresent
GoatPresent
ISBN 90-801886-5-4 "Compendium of animal reproduction"
SoleAbsent
silent estrus
silent heat
CattlePresent
RDF description of suboestrus