Abstrakt
Celem badań była ocena wpływu preparatu glukogennego (GA) oraz gatunków zbóż o różnej podatności skrobi na rozkład w żwaczu, podawanych krowom mlecznym w okresie przejściowym, na profil metaboliczny krwi. Doświadczenie przeprowadzono na 60 krowach podzielonych na 6 grup: 3 kontrolne (C) i 3 eksperymentalne (A) – otrzymujące preparat glukogenny. Zwierzęta otrzymywały 3 analogiczne dawki różniące się komponentami mieszanki treściwej [kukurydza (grupy C-M i GA-M), jęczmień i pszenica (C-BW and GA-BW) oraz kukurydza, jęczmień, pszenica (C-MBW i GA-MBW)]. W badaniach wykazano, że dodatek glukogenny (GA) w sposób istotny obniżył zawartość kwasu β-hydroksymasłowego oraz niezestryfikowanych kwasów tłuszczowych w osoczu krwi krów z grup GA-BW i GA-MBW w pierwszych tygodniach po wycieleniu. Takiej zależności nie odnotowano natomiast w grupie krów żywionych mieszanką bazującą wyłącznie na kukurydzy. Niezależnie od gatunku zboża suplementacja dawki dodatkiem glukogennym wyraźnie wpływała na obniżenie poziomu mocznika i cholesterolu całkowitego we krwi, a także na wzrost aktywności fosfatazy zasadowej.
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