Acid Preservation of Alfalfa Hay for Dairy Cows
نویسنده
چکیده
Since high quality forage is essential in a dairy ration, it is improtant to study new methods of preserving hay. In this trial, the effect of a commercial organic acid preservative on nutirent content and feeding value of alfalfa hay was evaluated. Alfalfa hay from a common field was baled at about 20 percent moisture for a control, and at about 28 percent moisture with addition of 0.1 percent organic acid based hay preservative. In a feeding trial with lactating cows, the control hay supported higher milk production than the hay to which the preservative had been added. Milk fat and non-fat solids content was similar for both groups. Digestibility of dry matter, organic matter and crude protein was slightly higher in rations containing the control hay. The commercial hay preservative used for this trial was not entirely effective in preventing molding in hay baled at high moisture content. It apparently was not effective in maintaining quality equal to that of hay baled at lower moisture content without a preservative.
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