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    • IJAFR, volume 54, no 1, 2015
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    • Irish Journal of Agricultural & Food Research
    • IJAFR, volume 54, no 1, 2015
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    Comparison of herbage yield, nutritive value and ensilability traits of three ryegrass species evaluated for the Irish Recommended List

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    Author
    Burns, G. A.
    O'Kiely, Padraig
    Grogan, D.
    Watson, S.
    Gilliland, T. J.
    Keyword
    Lolium
    Ryegrass
    Quality
    Ensilability
    Chemical composition
    Date
    2016-01-13
    
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    URI
    http://hdl.handle.net/11019/1040
    Citation
    Burns, G., O’Kiely, P., Grogan, D., et al. (2016). Comparison of herbage yield, nutritive value and ensilability traits of three ryegrass species evaluated for the Irish Recommended List. Irish Journal of Agricultural and Food Research, 54(1), pp. 31-40. doi:10.1515/ijafr-2015-0003
    Abstract
    This study examined 169 of the newest varieties of three ryegrass species, perennial (Lolium perenne L.), Italian (Lolium multiflorum Lam.) and hybrid (Lolium boucheanum Kunth), from Recommended List trials in Ireland. The traits examined were yield, dry matter concentration, three nutritive value traits (in vitro dry matter digestibility, water-soluble carbohydrate on a dry matter basis and crude protein concentration) and two ensilability traits (buffering capacity and water soluble carbohydrate concentration on an aqueous phase basis). Varietal monocultures of each species underwent a six cut combined simulated grazing and silage management in each of two years following sowing. Perennial ryegrass yielded less than both other species in one-year-old swards, but less than only Italian ryegrass in two-year-old swards, but generally had the higher in vitro dry matter digestibility and crude protein values. Italian ryegrass displayed the most favourable ensilability characteristics of the three species with perennial ryegrass less favourable and hybrid ryegrass intermediate. Overall, despite the high yields and favourable nutritive value and ensilability traits recorded, the general differences between the three ryegrass species studied were in line with industry expectations. These findings justify assessing the nutritive value and ensilability of ryegrass species, in addition to yield, to allow farmers select species that match farming enterprise requirements.
    Funder
    Department of Agriculture, Food and the Marine
    Grant Number
    RSF 07 526
    ae974a485f413a2113503eed53cd6c53
    http://dx.doi.org/10.1515/ijafr-2015-0003
    Scopus Count
    Collections
    Grassland Science
    IJAFR, volume 54, no 1, 2015

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