![]() ![]() There are almost 1000 species of finches and other weaver relatives. Within the large songbird family Fringillidae (true finches), and especially the canary, mass-specific basal metabolic rates, longevity, longevity residuals and lifetime expenditure of energy are all positively correlated with the rate of cytochrome b evolution ( Rottenberg 2007). This longevity related to the small body size is typical for songbirds. ![]() The birds live approximately 6–16 years, are monomorphic and weigh 15–25 g. The black-hooded red siskin ( Spinus cucullatus) is the source of the red pigment that is added to the canary’s genetic make-up, and is clearly in evidence in the red canary. Lizard, the oldest true breed canary ( Coutteel 2003) ( Fig. Border Fancy and Norwich crest and crest bred, e.g. North Dutch frill and Gibber Italico type breeds, e.g. ![]() the Roller canary, the Harzer, Waterslager, Timbrado or the American Singer) as coloured canaries, including the melanin (black, brown, agate, isabel) and lipochrome (red, yellow, white) groups their build and shape like type canaries, including frilled canaries, e.g. Canaries have been domesticated since 1400, and are bred and kept for different reasons: their song (e.g. The canary ( Serinus canaria) is the best-known representative of the songbirds. Supportive care and measures to minimize stress are often needed to maintain the host’s defence mechanisms. For a complete understanding of diseases associated with problems of passerines, including diagnosis and treatment, clinicians must become familiar with the aviculture, housing and husbandry of their patients. Relevant information related to mynahs will be discussed in this chapter.ĭiseases in these avian species are often influenced by nutrition, housing and stress. The toucans are described in chapter 14 (Ramphastids). Toucans are members of the family Ramphastidae (order Piciformes) mynahs are members of the family Sturnidae (order Passeriformes). Toucans and mynahs are often grouped together, but are from different taxonomic orders. The order Passeriformes contains between 50 different species ( Sibley & Ahlquist 1990, Gill 1994), with body weights ranging from 4.8 to 1350 g. Owners of passerines (songbirds) are utilizing veterinary care in increasing numbers as aviculturists recognize the advances in avian medical and surgical treatment of these patients. The aviculture, diagnostic procedures, and common diseases and their treatment will be discussed in this chapter, based on previous and recent publications ( Dorrestein 1997a, Hawkins 2003, Sandmeier & Coutteel 2006). Many veterinarians are relatively unfamiliar with the passerines. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |