Published in Scientific Papers. Series D. Animal Science, Vol. LIX
Written by George NICA, Lucian IONIȚĂ, Elena POPESCU-MICLOȘANU, Cornel Octavian PANĂ
In order to study the effect of the intermittent light at adult quails after the peak of laying was organized an experiment on a total of 450 quails divided into two batches: a lot has been subjected to continuous illumination with photoperiod duration of 16 hours daily (control group), and the other lot has undergone a lighting program divided according to the following scheme: 10 hours light (natural), 2 hours darkness, 6 hours light (artificial) and 6 hours darkness. The duration of the experiment was 16 weeks and at the beginning of the experiment quails had 29 weeks of laying. From the research, it was found that the quails from the experimental group registered an average laying percentage high with 16.16% and average production per head with 18.89% higher compared to the control group. The average live weight was higher with 19.61%, and average egg weight was 18.89% higher compared with the control group. Weekly average mortality was 1.11% higher in the control group. Also, the average daily consumption of compound fodder has been about 12.32% higher; in exchange specific consumption was lower with 6.96% at the experimental group compared with the control group. Given the superior performance recorded in case of experimental batch, it is recommended to use asymmetric fractionated lighting system at quails in the period after laying peak.
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