Udén, Peter
- Institutionen för tillämpad husdjursvetenskap och välfärd, Sveriges lantbruksuniversitet
Sammanfattning
Timothy, red clover and white clover from two cuts and two stages of maturity and whole crops (WC) of barley, wheat and maize from three stages of maturity were analysed for individual plant organic acids (OAs) before and after ensiling in mini-silos. Total OA levels, as previously reported, were generally lower in WC (14-70g/kg dry matter) in comparison with leys (51-98g/kg dry matter). Succinic, shikimic and fumaric acid levels were very low in all samples, while quinic, malonic, malic and citric acid constituted >90% of total OAs in all samples except maize. Maize had lower total OA levels than any other species but was the only one containing detectable levels of oxalic and aconitic acid. The sum of oxalic and aconitic acid decreased, however, from 89% to 35% of total OAs from early to late maturity, while there was a parallel increase in citric acid with increasing harvest date. Total OA level was unaffected in the ley crops by maturity, cut and species (p>.1), but among WC, wheat was higher than maize (p
Nyckelord
forages; organic acids; silage; whole crops
Publicerad i
Grass and Forage Science
2018, volym: 73, nummer: 3, sidor: 583-587
Utgivare: WILEY
SLU författare
UKÄ forskningsämne
Husdjursvetenskap
Publikationens identifierare
- DOI: https://doi.org/10.1111/gfs.12361
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/96432