Induction of Estrus in Does (Female Goats)
The induction of estrus in does refers to the controlled stimulation of the reproductive cycle in female sheep to facilitate planned breeding in female goats.
Two non-hormonal methods for altering the breeding of does include the sudden introduction of the buck and the use of an artificially altered photoperiod.
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In general the sudden introduction of a male to a group of mature females during the period of transition from anestrus to estrus can be expressed to advance the breeding season by a matter of weeks, whereas the use of photoperiod alteration can allow for the breeding of does during the traditional “deep anestrous” time of year.
It is also possible to combine the two techniques in order to achieve both “out of season” breeding and synchronization of estrus.
Buck Effect
The introduction of a normal or teaser male induces estrus and ovulation in mature transition period does within 5 to 7 days.