Publication Date
1989
Description
Previous research has shown that formulating rations based upon neutral detergent fiber (NDF) concentration of the total diet can be an effective means of maximizing the performance of lactating dairy cattle (Mertens, 1982). Results of these studies indicated that ration formulation using NDF is a robust procedure, but that differences in the optimum NDF level may exist between forages conserved in different manners. To determine if the method of forage preservation affects the optimum NDF concentration of diets, a study was designed to compare the response of lactating dairy cattle to diets of identical NDF concentration formulated using third-crop alfalfa forages of two maturities (mid-bud and late-flower) that were preserved as hay, low-moisture silage, and high-moisture silage.
Citation
Hintz, R W.; Mertens, D R.; and Albrecht, K A., "Evaluating Maturity and Preservation Method of Alfalfa on Optimum Rations for Lactating Dairy Cattle Based Upon Neutral Detergent Fiber Concentration of the Total Diet" (2025). IGC Proceedings (1989-2023). 29.
https://uknowledge.uky.edu/igc/1989/session7/29
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Evaluating Maturity and Preservation Method of Alfalfa on Optimum Rations for Lactating Dairy Cattle Based Upon Neutral Detergent Fiber Concentration of the Total Diet
Previous research has shown that formulating rations based upon neutral detergent fiber (NDF) concentration of the total diet can be an effective means of maximizing the performance of lactating dairy cattle (Mertens, 1982). Results of these studies indicated that ration formulation using NDF is a robust procedure, but that differences in the optimum NDF level may exist between forages conserved in different manners. To determine if the method of forage preservation affects the optimum NDF concentration of diets, a study was designed to compare the response of lactating dairy cattle to diets of identical NDF concentration formulated using third-crop alfalfa forages of two maturities (mid-bud and late-flower) that were preserved as hay, low-moisture silage, and high-moisture silage.
