Rapeseed cake in laying hen diets
1997
Obadalek, J. (Ceska Zemedelska Univ., Prague-Suchdol (Czech Republic)) | Vymola, J. | Kosar, K.
288 brown-egg laying hens of the hybrid Hisex Brown received six experimental diets since 19 weeks of age during the first laying stage. Feed mashes comprised 0, 3, 6 and 9 % of rapeseed cake and various amounts and combinations of both pigments. No significant effects were observed with respect to the indicators of laying intensity and egg weight or to the indicators of egg quality, except a moderate yolk depigmentation effect with the increasing content of rapeseed cake. Even though a slight increase in feed intake per 1 kg of egg contents was recorded, the use of rapessed seems to be advantageous while economic relations of proteinaceous ingredients are positive.
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