| 释义 |
perosis Vet. Sci.|pəˈrəʊsɪs|
[ad. Gr. πήρωσις maiming, f. πηροῦν to maim.]
A disease of poultry (see quot. 1937).
1931Science 4 Sept. 249/2 Several of the stations reported that when the ‘uniform diet’ was fed to chicks kept in confinement a high percentage of them became afflicted with perosis (deforming leg weakness). 1937Jrnl. Nutrition XIV. 155 Perosis..is an anatomical deformity of the leg bones of young chickens, turkeys, pheasants, grouse and quail... The symptoms generally found are gross enlargement of the tibial-metatarsal joint, twisting or bending of the distal end of the tibia and of the proximal end of the metatarsus, and slipping of the gastrocnemius tendon from its condyles. 1950New Biol. VIII. 104 There is some evidence that the disease in hens known as perosis may be due to manganese deficiency. 1970Poultry Sci. XLIX. 1753/1 Perosis is an extremely complex condition that can be produced experimentally by an inadequate intake of several different nutrients. |