Agriculture
Volume 4, Numéro 2, Pages 35-40
2013-12-31

Influence Du Mode D’éclairement-alimentation Sur Les Performances Zootechniques Du Poulet De Chair Hubbard-isa 15 élevé En Algérie



Auteurs : Benyounes Aziz . Djeddi B. . Lamrani F. .

Résumé

The trial evaluated the growth and the consumption index of broilers resulted in two different planes of lighting-feeding. It took place during 56 days between February and April, on a total of 36540 subjects Hubbard-ISA 15, divided into two groups, 17830 subjects for control and 1870 for experimental. Body weights of animals to the implementation was identical (44 ± 0.08 and 43 ± 0.13 g) (P> 0.05) were raised in two buildings of the same type. A non-restrictive plan lighting- feeding, open access to the feeder was applied to the control, while that of the experiment was restricted type with dietary restriction caused by a reduction of the illumination time (1165 vs. 1045 hours). The rest of the breeding condition is identical. Food distributed as refusals are quantified and animal performances are evaluated. The light-diet plan tested had an effect on the time spent at the feeder and a gain in the illumination time -106 hours. This has resulted in a reduction in the consumption of -850 g / subject, and indices of low consumption in the experimental (P <0.0001). These performances with positive incidence on the cost of production in the experimental group, suggest the slaughter of broilers at least the 40 days age and 50 days at the maximum.

Mots clés

Broiler chicken, consumption index, growth, slaughter.

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