L. IoniŢĂ

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BIBLIOGRAPHIC STUDY ON SOME ENVIRONMENTAL PARAMETERS IN INTENSIVE ADULT JAPANESE QUAILS RAISING

L. Ioniţă, Elena Popescu-Micloşanu, C. Pană, M. Ioniţă

Abstract
The purpose of this paper was to know the present state of research on some environmental parameters recommended by the literature in adult intensive quails raising. For laying birds, environmental factors are influencing egg production, exploitation of feed meal and resistance to breakage of eggs. As a result of the research it can affirmed that the limits of the temperature in the shelter of adult quail are between 17°C and 30°C. Temperatures over 32°C or below 5-10°C produce negative effects on the quails, in the sense that it reduces the production of eggs, it reduces weight at slaughter and it increases mortality. Relative air humidity in the shelter of quails may vary between 50% and 78% and the average humidity which is actually used is 60-70%. Related to the light, the best duration of light is between 14-18 hours of light/ day, this ensuring an optimum production. Optimum light intensity in the quail's shelter is 5 lux/m2. Optimum density recommended for quail raising is between 150 cm2 / bird and 211 cm2 / bird. The level of battery cages in which the quails are exploited, influences the laying intensity, which is significantly lower by about 5-9% for the lowest level compared to other levels.

Key words: quail, environment, parameters, adult, raising