engleski

The effect of partial replacement of maize with dried whey on N bilance from a diet based on alfalfa haylage in wether sheep

The aim of this study was to determine the effect of partial replacement of ground maize grain (GM) with dried whey (DW), as an supplement to the alfalfa haylage (AH), on the nitrogen (N) bilance in wether sheep. Four feeding treatments, with the addition of 30 g kg-1 M0, 75 of concentrate, were investigated: only GM (treatment A) or GM replaced with DW in the quantity of 10 % (treatment B), 20 % (treatment C) or 30 % (treatment D). According to results obratined a DW has a potential to replace a GM, as a supplement to AH of medium quality. It was concluded that the replacement of 10%, 20% and 30% has no negative affect on N intake, N excretion, nor the N balance in wether sheep. A decision of replacement and quantity of GM to be replaced by DW is dependent on the prodction economy and market prices of these feeds.

alfalfa haylage, maize grain, dried whey, N bilance

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