By Brown Enrique Ortega
Specialistic veterinarian in birds
Known he is by all the canaricultores that the
light a fundamental paper in the health of the birds plays. The
light and his cycles (fenoperiodos) are used by the animals to synchronize
its biological clocks. Their positive effects nonsingle help to
maintain the health psychological but that in addition they allow
the manufacture of the D-3 vitamin, the birds kept in aviarios of
interior and with a poor diet can develop deficiencies in that vitamin,
which would lead raquitismo in animals young people and ostomelacia
(softening of the bones) or hipocalcemia (low amount of calcium
in blood) in adults. It is advisable to indicate that ultra-violet
rayses, responsible of the manufacture of this vitamin, they do
not happen to traverse of crystals. The excess of D-3 vitamin (for
example: by abuse from oil of codfish liver) it can be toxic, reason
why the birds lodged in the outside do not need supplements.
The fotoperiodicidad enough has been studied in
the birds like average manipulating the raising. Fotoperiodo is
more important in climate unit temperings where the changes in the
hours of light are greater. The animals that live in the equatorial
zones have a variation of smaller light, approximately of 20 minutes,
but even so also they are sensible to these changes. The erratic
or prolonged fotoperiodos which they are put under the birds maintained
in the familiar home can end up affecting the behavior of the same
The poultry keepers are going to manipulate the
duration of the hours of light by two clear reasons:
- To increase the production.
- To allow that the young people more are prepared
(dumb finished) with Vista to their preparation in the aids.
The canaries need a minimum 14 a 16 hours of light
to the day to begin to raise: with this amount of hours it is possible
removed his chicks ahead correctly. If this fotoperiodo underwent
forts fluctuations the birds they could stop the young and end at
dumb a premature one.
There are two forms to manipulate the duration
of the day:
Gradual increase of the hours of light: every day
more minutes of light are added to the dawn at dusk and. Normally
they will spend two months before of which we are able to increase
of 8 to 10 hours of light until the 15 wished hours. Increasing
30 minutes to the week it will take 10 weeks to us to arrive at
the hours of light tried.
Immediate increase of the duration of the day:
from a day to another one we happened of 10 to 15 hours. In this
situation the birds begin to raise to 3-4 weeks, but the possibility
exists of obtaining worse results in the young: bad fertilization
of eggs in the first putting. It has been observed that more than
17 hours of light to the day is not interesting.
The gradual increase of the hours of light is more
natural and offers better results.
In order to finalize he is advisable to indicate
that more investigations are necessary to completely know all the
effects beneficial that on the health of the birds the light of
total phantom has, the solar rays.
© Brown Enrique Ortega