Eigenschaften von Mischungen mit perennierenden Leguminosen und Gräsern aus dem Anbau in alternierenden Reihen unter Einbeziehung einer Hochzuckergras-Sorte

Summary

Three different perennial legume species (Lotus corniculatus, Medicago sativa,
Trifolium pratense) were cultivated in alternate drills with one of three different grasses
each. L. corniculatus is known to be rich in tannins, which are supposed to have
positive effects on protein digestion of ruminants and methane emissions. One of the
grass components was a Lolium perenne cultivar (cv. Aberavon) with increased
concentrations of water-soluble carbohydrates (wsc). The influence of this grass
variety on forage characteristics in mixtures was tested compared to other grasses
(Lolium perenne cv. Gladio and Lolium multiflorum cv. Ligrande). Dry matter yield of
different mixtures was determined and concentration of wsc in herbage before ensiling
was analysed. Digestibility of organic matter (DOM) in silages was determined
encymatically. Aberavon had higher contents of wsc compared to other grasses but
there were no differences in DOM of silages caused by the grass cultivar. Mixtures
containing Aberavon yielded less dry matter than other grasses. Dry matter yields of
mixtures with L. corniculatus were similar or slightly inferior to the yield of the mixtures
with M. sativa or T. pratense. Digestibility of silages including L. corniculatus was
similar to M. sativa variants and even superior to T. pratense mixtures in single cases.