Цифров научен архив

П 2685

PENKOV, Dimo et. al.

   PENKOV, Dimo et. al. The effect of including of marigold (calendula officinalis l.) On the net utilization of the energy and protein in the eco-technical chain 'fodder - layer's eggs' : [електронно издание] / Dimo Penkov, Svetlana Grigorova, Alexandar Peltekov. // Agricultural Sciences , 14, 2022, 32, p. 42-46

ISBN 1313-6577

Сист. N: 9285