In this article advice of the scientist is given how to select a good layer.
Councils of the scientist
Councils of the scientist
Owners of country farmsteads to an oseyonye, as a rule, select hens young women for formation of the house ptiyochy herd. At survey a bird take for wings so that the ukazatelyyony finger was between them.
In the beginning examine the head, then plumage and feet, a free hand oshhupyvayut a bird, define craw size, muscles development, length and width grudi, stomach volume, distance between konyotsy Kiel a chest bone and lonny kostyami. Examine a foul place.
The hens left for productive use, should have: the head – the average size, not extended and not rough, a crest and ear rings – well razviyoty, with branched out capillary sisteyomy, eyes – big, convex and blestyayoshchy, a beak – short, strong, a little bent, a neck – average length with umeyorenno developed muscles and dense plumage, a breast – wide and roundish with direct and the developed Kiel chest kosti, well obmuskulenny, a back – shiyoroky, equal and long, a trunk – long and wide, a stomach – soft and objeyomisty, feet and fingers – straight lines, equal, widely placed, rather koyorotky, a tail – widely raskinuty, neoyotvisly, frame – strong, thin, muscles – dense, well developed, fatness should be average, temperament – zhiyovy, mobile.
The healthy young woman has a plumage usually smooth, brilliant. Further its change at hens is closely connected with their egg proyoduktivnost. At highly productive neyosushka the molt begins late. At others change of a feather begins early and strongly zatyagivaetsya, having rummaged in a yaytsekladka quite often 3-4 months proceed at them. It is not necessary to leave such kuyoritsa the next year. A good layer always it is possible uznat on brightly painted, increased for a crest and ear rings, on shining glazam.
At measurement from layers take two measurements: a big measurement produktivnosti (distance between the ends lonny koyosty and the back end of a chest bone), a mayoly measurement of efficiency (distance between the free ends lonny kosyoty). Their size at good layers bolshe.
Lonnye bones at a bird during a yaytsekyoladka widely disperse. Between them it is possible to lay not less than three fingers. And at unproductive in this space umestyatsya only one-two finger. At a good layer lonny bones easily proshhupyvayutsya, about them fat isn’t postponed almost. Besides, they flexible and elastic. At a good layer the foul place big, damp, slightly bulked up, is visible a rozovayoty mucous membrane. At a fruitless kuyoritsa a cloacal opening, as a rule, mayolenky, dry.
Yellow coloring of skin shows that chicken doesn’t rush or only began a yayyotsekladka. On decolouration of skin, Klyuyev and a metatarsus of feet it is possible to judge a prodolyozhitelnost of a yaytsenoskost and about age of hens. As with age birds its egg efficiency decreases – for the second year of use – for 15-20 percent, on the third – for 35-40 percent, to contain laying hens in an economy no more than two years are more expedient.
And. ZAXAROV, senior research associate of Krymyosky experimental station of institute of ekyosperimentalny and clinical veyoterinarny medicine, candidate of agricultural sciences.