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A note on the chemical composition and in vitro digestibility of contrasting stover components of maize grown in climatically marginal conditions and harvested at differing maturities.

Lynch, J.P.
; 
O'Kiely, Padraig
; 
Doyle, Evelyn M.
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Keywords
Harvest date, Leaf, Maize, Stem, Stover
Date
2014
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IJAFR, Volume 53, number 2, 2014
Grassland Science
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URI
http://hdl.handle.net/11019/763
Citation
J.P. Lynch, P. O’Kiely and E.M. Doyle. A note on the chemical composition and in vitro digestibility of contrasting stover components of maize grown in climatically marginal conditions and harvested at differing maturities. Irish Journal of Agricultural and Food Research, 2014, 53: 205–211
Abstract
This study evaluated the nutritive value of three contrasting components of maize stover (leaf, upper stem, lower stem) at three harvest dates. The leaf component had a greater in vitro dry matter digestibility (DMD) and a lower NDF concentration, compared to the stem components. Delaying harvest reduced the in vitro DMD of the stem components to a greater extent than leaf, reflecting lower increases in the NDF and lignin concentrations in leaf tissue. The stem components of maize stover had a lower nutritive value than the leaf component, and had a larger decrease in digestibility with delayed harvest.
Funder
Department of Agriculture, Food and the Marine
Grant Number
RSF 07 501
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