Behaviour of cockatiels (Nymphicus hollandicus) at two temperatures in captivity
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چکیده
منابع مشابه
Taste threshold determination and side-preference in captive cockatiels (Nymphicus hollandicus).
The taste thresholds of caged cockatiels (Nymphicus hollandicus) for aqueous solutions of sodium chloride, citric acid, and sucrose were studied using two-choice taste-preference tests. The effects of location on the threshold were tested by putting the flavored solution in either the preferred or non-preferred locations (i.e. sides of cages) and offering water in the opposite location. Four pa...
متن کاملHow cockatiels (Nymphicus hollandicus) modulate pectoralis power output across flight speeds.
The avian pectoralis muscle must produce a varying mechanical power output to achieve flight across a range of speeds (1-13 m s(-1)). We used the natural variation in the power requirements with flight speed to investigate the mechanisms employed by cockatiels (Nymphicus hollandicus) to modulate muscle power output. We found that pectoralis contractile function in cockatiels was generally conse...
متن کاملUnusual fatal avian polyomavirus infection in nestling cockatiels (Nymphicus hollandicus) detected by nested polymerase chain reaction
High mortality of nestling cockatiels (Nymphicus hollandicus) was observed in one breeding flock in Slovakia. The nestling mortality affected 50% of all breeding pairs. In general, all the nestlings in affected nests died. Death occurred suddenly in 4to 6-day-old birds, most of which had full crops. No feather disorders were diagnosed in this flock. Two dead nestlings were tested by nested PCR ...
متن کاملThresholds for sweet, salt, and sour taste stimuli in cockatiels (Nymphicus hollandicus).
Little is known about avian taste perception and how taste affects food choice. We designed a study to determine the concentrations of aqueous solutions of common chemical taste stimuli that result in altered consumption patterns. Using two-choice taste-preference tests, we studied the taste thresholds of caged cockatiels (Nymphicus hollandicus) for aqueous solutions of potassium chloride, a ph...
متن کاملSubcutaneous haemangiosarcoma in a cockatiel (Nymphicus hollandicus).
An ulcerated, 1 x 0.5 cm, subcutaneous mass on the craniolateral aspect of the right tibiotarsus of a 4-year-old male cockatiel was removed. Histologically, the neoplasm was non-encapsulated, infiltrative and composed of irregular vascular channels lined by branching and variably sized spindle-shaped cells with large vesicular nuclei, prominent nucleoli and rare mitoses. Surrounding these vascu...
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ژورنال
عنوان ژورنال: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
سال: 2015
ISSN: 0102-0935
DOI: 10.1590/1678-4162-7892