Reproductive parameters in captive hand-reared black-bellied sandgrouse
Abstract 10.1002/zoo.20185.abs Flock breeders of black-bellied sandgrouse originated from wild-laid eggs collected in west central Morocco in 2003 and 2004, were hatched, and hand-reared in captivity in the framework of a reinforcement population program. Three to five pairs of different ages were housed in an aviary. Egg-pulling procedure was used and eggs incubated artificially. Breeding […]
Captive breeding for reintroduction: influence of management practices and biological factors on survival of captive kaki (black stilt)
Abstract 10.1002/zoo.20065.abs An important component of the restoration strategy for the critically endangered kaki or black stilt (Himantopus novaezelandiae) is captive breeding for release. Since 1981 1,879 eggs were collected from wild and captive pairs, with birds laying up to four clutches. Eggs were incubated artificially and most chicks reared by hand until released as […]
Artificial incubation of trumpeter swan eggs: Selected factors affecting hatchability
Abstract 10.1002/(SICI)1098-2361(1999)18:53.3.CO;2-# Eggs collected from captive trumpeter swans (Cygnus buccinator) in 1993 (n = 33) and 1994 (n = 42) were artificially incubated with careful monitoring to identify factors contributing to the low hatch success reported by the Ontario Trumpeter Swan Restoration Program. Fertility was > 80% in both years, whereas hatch success of fertile […]
Wild-laid versus captive-laid eggs in the black-bellied sandgrouse: Is there any effect on chick productivity?
Because survival in captivity is a significant determinant of birds available for release and reinforcement of wild populations, we aimed to identify sources of variation in mortality to assess potential impacts of management on chick productivity. We analyzed characteristics of Black-bellied Sandgrouse eggs collected from the wild and produced by captive pairs. Wild laid-eggs and […]