Sentence examples for birds were maintained 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.
All birds were maintained under an approved protocol by the university's animal care and use committee.
Birds were maintained in isolation and recorded continuously until they reached the age of 90 dph.
The birds were maintained at 85percentnt of their free feeding weight.
Upon recovery from surgery, birds were maintained in sound isolation cages.
Flight, so characteristic of birds, is maintained during the molt in most species by a gradual replacement of the flight feathers.
In cold climates the aviary is usually enclosed and heated, depending on the types of birds being maintained, though sometimes the birds are merely driven into a smaller, heated enclosure at night.
This suggests that S. Typhimurium infection in garden birds is maintained within the wild bird population rather than there being repeated infection of wild birds from other sources.
Under the conditions in which domestic birds are maintained, the range of host species available for infection, compared with natural ecosystems, is considerably reduced and limited mainly to galliform birds and waterfowl, often in monospecific flocks.
