Effect of ensiling on the fatty acid composition of the resultant silage

Helen E. Warren, John K. S. Tweed, Susan Jean Youell, Richard J. Dewhurst, Michael R. F. Lee, Nigel D. Scollan

Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddTrafodion Cynhadledd (Nid-Cyfnodolyn fathau)

Crynodeb

This study investigated the effect of wilting and additive type on the fatty acid profile of the resultant silage. Perennial ryegrass (PRG) [Lolium] and red clover [Trifolium pratense] were cut in the field and chopped immediately post-cutting. Pure PRG, clover and a PRG/clover mix (50:50 fresh basis) were wilted for 0, 24 or 48h and ensiled with water (control), a bacterial inoculant or an acid inoculant. Total fatty acids (FA) were higher in red clover compared with PRG silages averaging 15.6 vs. 11.9 g/kg freeze dry matter (FDM) (s.e.d.=0.38; P<0.001), respectively. Averaged across all 3 forages, wilting resulted in a 15% loss in total FA, 14.6 vs. 12.4 g/kg FDM (s.e.d.=0.38; P<0.001) for 0 and 48h, respectively. Similar trends were observed for C18:3n-3. Both additives reduced total FA on average 14.4, 13.7, and 13.3 g kg-1 (s.e.d.=0.38; P<0.01) for the control, bacterial inoculant and acid inoculant, respectively.
Iaith wreiddiolSaesneg
TeitlMulti-Function Grasslands: Quality Forages, Animal Products and Landscapes
GolygyddionJ-L. Durand, J-C. Emile, C. Huyghe, G. Lemaire
CyhoeddwrEuropean Grassland Federation
Tudalennau1001-101
Nifer y tudalennau1
StatwsCyhoeddwyd - 2002
DigwyddiadProceedings of the 19th General Meeting of the European Grassland Federation (EGF) - La Rochelle, Ffrainc
Hyd: 27 Mai 200230 Mai 2002

Cyfres gyhoeddiadau

EnwGrassland Science in Europe
Cyfrol7

Cynhadledd

CynhadleddProceedings of the 19th General Meeting of the European Grassland Federation (EGF)
Gwlad/TiriogaethFfrainc
DinasLa Rochelle
Cyfnod27 Mai 200230 Mai 2002

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