论文信息 - Effect of season and regrowth period on the in vitro digestibility of irrigated lucerne in Canterbury

Effect of season and regrowth period on the in vitro digestibility of irrigated lucerne in Canterbury

Abstract In vitro digestibility of leaf, stem, and whole-plant samples of lucerne and leaf/stem ratios were measured after 3 to 7.5-week regrowth cycles over one growing season. Leaf digestibility remained relatively constant at about 75%, irrespective of maturity or season, but stem digestibility decreased to below 50% for long regrowth periods in mid summer. Leaf/stem ratio decreased at the same time, contributing to a decrease in digestibility of whole-plant samples. The implications of these low digestibilities in summer are discussed.

L. R. Fletcher

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