Resumen

CASTIBLANCO, F.; PAZ, P. E.; VALDIVIE, M.  y  MARTINEZ, Y.. Effect of inclusion levels of dry distillery grains with solubles (DDGS) on productivity and egg quality of Hy-Line Brown^® laying hens. Cuban J. Agric. Sci. [online]. 2021, vol.55, n.4, pp. 391-402.  Epub 01-Dic-2021. ISSN 2079-3480.

The effect of four levels of inclusion of dry distillery grains with solubles on the productive performance and egg quality of Hy-line Brown® laying hens was evaluated. A total of 140 animals were distributed in four treatments, according to a completely randomized design, for 10 weeks. Seven repetitions per treatment and five birds per repetition were established. The treatments consisted of a control diet and the inclusion of 10, 15 and 20 % of dry distillery grains with solubles. The inclusion of 0 and 10 % promoted (P <0.05) laying intensity and mass conversion with respect to 15 and 20 %. In addition, diets with dry distillery grains with solubles increased (P <0.05) food intake, nutrients and metabolizable energy, as well as shell thickness and yolk color (P <0.05), without notable changes (P> 0.05) for albumen height, Haugh unit and resistance to shell rupture. It is recommended the inclusion of 10 % of dry distillery grains with solubles in partial substitution of corn and soybean meal in diets intended for Hy-line Brown® laying hens.

Palabras clave : distillery byproducts; laying hens; productive indicator; egg external and internal quality.

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