Reduction of cannibalism in laying hen raised under the illumination of red light and its poultry-house with red-painted structures
1999
Sasaki, K. (Mie-ken. Agricultural Technical Center, Ureshino (Japan)) | Imanishi, Y.
Present experiment was carried out to clarify the effects of red light illumination in windowless house and red painted structure of poultry-house of open-type on the cannibalism in laying hen without being debeaked. The incidence of cannibalism in growing stage of hen was lessened by illumination with red lamps and painting the structures red. And the survival ratios on laying stage were increased. Thus, we concluded that lighting with red lamps in windowless house and painting the structures red in poultry-house of open-type were effective to decrease in cannibalism of hen in both growing and laying stage
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