Phytobiotic effect of Psidium guajava leaf powder on productivity and quality of the egg of laying hens
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Abstract
P. guajava decreased (P <0.05) the height of the white (5.97 mm) with respect to T0. The shell surface and yolk height did not change as a result of the experimental treatments (P> 0.05). The addition of 0.5 % of P. guajava leaf powder to laying hen diets is recommended to improve productivity and some indicators of egg quality.
Key words: additive, laying hen (ave de postura), guava, biological response
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