Studies on Inheritance in Pigeons. VI. Number of Tail Feathers and Uropygial Gland.
نویسنده
چکیده
Crosses between ordinary pigeons and fantails.. ... ........................ 99 Original stock.. ............................................................... 99 The F1 offspring.. ........................... . . . . . . . . . . . . . . . . . . 101 The Fz generation.. ........................................................... 101 Backcross (F1 Xordinary pigeon) ...................... Other crosses. .............................. S U M ~ ~ A R Y ............................................... ........ 106 LITERATURE CITED. ............................ 97
منابع مشابه
Feather mite abundance increases with uropygial gland size and plumage yellowness in Great Tits Parus major
Plumicolous feather mites are ectosymbiotic organisms that live on bird feathers. Despite their abundance and prevalence among birds, the ecology of the interaction between these organisms and their hosts is poorly known. As feather mites feed on oil that birds spread from their uropygial gland, it has been hypothesized, but never tested, that the number of feather mites increases with the size...
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The uropygial gland is an organ exclusive of birds that secretes an oily substance, the uropygial secretion, the functions of which are still debated. One of the proposed hypothesis is its possible action against chewing lice (order Phthiraptera), a group of avian ectoparasites that feed on feathers, causing different types of harm. However, this hypothesis lacks support. The present study anal...
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Preen oil is an oleaginous secretion that birds spread onto their plumage when preening. It is secreted by the uropygial (or preen) gland, a holocrine complex that is unique to birds and located in the integument of the rump (Clark 2004). The functions of the uropygial gland are still disputed: it may be involved in sexual communication, through pheromone production (Hirao et al. 2009), and thr...
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Potentially, pathogenic bacteria are one of the main infective agents against which a battery of chemical and physical barriers has evolved in animals. Among these are the secretions by the exocrine uropygial gland in birds. The antimicrobial properties of uropygial secretions may prevent colonization and growth of microorganisms on feathers, skin and eggshells. However, uropygial gland secreti...
متن کاملPhysiological and biochemical aspects of the avian uropygial gland.
This review discusses different aspects of the uropygial gland of birds. The gland exhibits a striking morphological diversity in size, shape and presence/absence of tufts of feathers. It was shown that acidic mucins, neutral lipids, glycolipids and phospholipids are normal components of secretion. Several morphological and physiological aspects of the gland were studied on Rock Pigeon Columba ...
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عنوان ژورنال:
- Genetics
دوره 12 2 شماره
صفحات -
تاریخ انتشار 2003