pumpkin silage

The effect of feeding ration, enriched in synthetic and natural ß-carotene on the selected indicators of health condition of the cows and on reproduction parameters

Annals of Warsaw University of Life Sciences – SGGW
Animal Science No 55 (2), 2016: 167–175
(Ann. Warsaw Univ. Life Sci. – SGGW, Anim. Sci. 55 (2), 2016)

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