Difference between revisions of "Avian Breeding, Ovulation and Oviposition - Anatomy & Physiology"
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(New page: == Breeding Cycles == == Endocrine Control == == Oviposition ==) |
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== 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 == | ||
Revision as of 12:29, 4 July 2008
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.