Sentence examples for birds were maintained in from inspiring English sources
All birds were maintained in Horsfall units within an isolation unit.
The birds were maintained in these conditions up to the age of 1 year.
Birds were maintained in isolation and recorded continuously until they reached the age of 90 dph.
Upon recovery from surgery, birds were maintained in sound isolation cages.
The birds were maintained in nonbreeding condition by means of an unchanging light:dark cycle of long days.
Sham-inoculated birds were maintained in separate units from the infected birds and grouped by individual species.
After the surgery, the bird was maintained in a sound attenuation chamber.
The temperature and lighting conditions were the same in the experimental room as in the aviary (ca. 19 °C; 14 10 h light:dark); thus for the entire experiment the birds were maintained on long days and hence in nonreproductive condition.
In these aviaries, the birds were maintained on a 12 12-h 12 12-hark schedulight/darkull-schedule lights, with air temperatunderanging between 20°C and 24°C.
The birds were maintained under continuous lighting, and food and water were provided ad libitum.
Unmanipulated control birds were isolated at 44 45 dph (as for experimental birds) and were maintained in sound isolation/recording cages until they reached the age of 90 dph, or until post-90 dph song had been acquired.
