Toucan hand feeding and nestling growth
| Autor: | Erin McKerney, Erika Nilson, Judy St. Leger, Martin Vince, Jerry Jennings |
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| Rok vydání: | 2012 |
| Předmět: |
Avian clutch size
Male biology Ecology Range (biology) Fledge Body Weight General Medicine Rainforest Breeding biology.organism_classification Toucan Birds Nest Habitat Animals Animal Nutritional Physiological Phenomena Animals Zoo Female Animal Husbandry Growth Charts Small Animals Aracari Retrospective Studies |
| Zdroj: | The veterinary clinics of North America. Exotic animal practice. 15(2) |
| ISSN: | 1558-4232 |
| Popis: | Toucans and toucanets are charismatic ambassadors for the rainforest. Their presence in captive collections typifies the “jungle.” Because of this, they are popular additions to aviaries in zoos and private avian collections. They are kept as pet birds but much less commonly than psittacines. When they are part of a pet bird collection, they are often included in small breeding programs. Investigations to improve breeding and rearing programs remain to be performed for most toucan species. Elements of importance in captive propagation include adult management, nutrition, nest management, and egg/chick management. Variations in chick management and nutrition often result in variable fledging success between facilities. Small numbers of chicks for each facility make conducting large scale investigations impossible. Additionally, species-based variations and external factors such as clutch size impact both chick rearing success and growth. Objective criteria to gauge hand-rearing protocols are often limited to the number of birds raised to fledging. While this is a reasonable measure of success, information on chick development is helpful in determining effective hand feeding and chick health. Toucans, toucanets, and aracaris all belong to the phylogenetic family Rhamphastidae. It is common to refer to this family as toucans. This is a large family consisting of 6 genera with 42 species. These birds occur over a large geographic area from southeastern Mexico extending into South America. Toucan habitat varieties range from forest lowland to mountain regions with birds residing at altitudes of 150 to 3600 m above sea level. As the biomes vary, so do diet and life history characteristics. In short, not all toucans are alike. 1 |
| Databáze: | OpenAIRE |
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