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Avian Breeding, Ovulation and Oviposition - Anatomy & Physiology (view source)
Revision as of 12:29, 4 July 2008
, 12:29, 4 July 2008→Breeding Cycles
== Breeding Cycles ==
== Breeding Cycles ==
* Classified according to length of cycle and the time of year when the species becomes reproductively active.
** Continuous breeders are reproductively active throughout the year e.g. Khaki Campbell duck.
** Most wild species that breed in temperate, subarctic and arctic zones display yearly cycles.
* Tropical or desert species may breed with cycles less than a year, at 6-month intervals or when conditions are favourable (opportunistic breeders).
* Usually lay one or more eggs in a clutch and terminate laying to incubate the eggs.
* Number of eggs per clutch and total number of clutches vary with species and season.
== Endocrine Control ==
== Endocrine Control ==
== Oviposition ==
== Oviposition ==