PRODUCTIVE PERFORMANCE OF QUAILS (COTUNIX COTURNIX) SUBMITED TO DIFFERENT LIGHTING PROGRAMS
Abstract
The objective of this work was to make an evaluation of the effects of programs of continuous and intermittent illumination on the index of egg production of quails Coturnix coturnix. The experiment was carried out in the Farm Santo Antônio in Lavras-MG, Brazil. 24600 quails were used, with 42 days of age at the beginning of the experiment. The intermittent program used a regime with three phases of illumination in 17 hours and a period of the dark of seven hours. The lamps ignited in the morning to five, extinguished to the dawn and ignited again to 17:30 and extinguished to 22:00. The continuous program of illumination presented a phase of illumination of 17 hours and phase of the dark of seven hours. The evaluated measures of performance were the feed intake (g/birth/day), egg production (eggs/bird/week), loss of eggs (%), weight of eggs (g), weight of the bird (g), nutritional conversion by egg weight (g/g) and by dozen of eggs produced (g/dz), mass of eggs (g/birth/day), deaths by prolapse (%), gonadosomatic and hepatosomatic indexes (%) and the viability (%). The data were analyzed SAS (1995). Significant difference between the treatments (P<0.05) was observed in feed intake, nutritional conversion by eggs weight and viability, but not significant difference (P>0.05) for the other evaluated measures of performance. The use of the system of intermittent illumination in quails was highly efficient and viable.Downloads
Creative Commons Attribution 4.0
The works published in this journal are subject to the following terms:
1. The Publications Service of the University of Murcia (the publisher) retains the property rights (copyright) of published works, and encourages and enables the reuse of the same under the license specified in paragraph 2.
© Servicio de Publicaciones, Universidad de Murcia, 2019
2. The works are published in the online edition of the journal under a Creative Commons Attribution-NonCommercial 4.0 (legal text). You can copy, use, distribute, transmit and publicly display, provided that: i) you cite the author and the original source of publication (journal, editorial and URL of the work), ii) are not used for commercial purposes, iii ) mentions the existence and specifications of this license.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
3. Conditions of self-archiving. Is allowed and encouraged the authors to disseminate electronically pre-print versions (version before being evaluated and sent to the journal) and / or post-print (version reviewed and accepted for publication) of their works before publication, as it encourages its earliest circulation and diffusion and thus a possible increase in its citation and scope between the academic community. RoMEO Color: Green.