The high feeding value of red clover makes it into an important species in Swedish agriculture. There are three different maturity types grown in Sweden, early, medium late and late. The time for heading, regrowth and winter hardiness is affected by the maturity type, but there can also be other factors that are affected by the maturity type, for instance fiber content. In a greenhouse experiment three red clover varieties of different maturity types were compared; early Titus, middle late SW Nancy and late SW Torun. The features compared were fiber content and differences in development rates.

Today, high-yielding leys of good quality are a must for Swedish dairy and beef enterprises if they are to become profitable. Thus, it is of interest to evaluate the quality of the recently released high-yielding Festulolium hybrids ((Festulolium braunii (K.Rich.) A.Camus). The aim of this project was to determine at what phenological stage three different Festulolium hybrids should be cut in order to get the highest nutritional value. The hybrids studied were Hykor, Perun and Paulita. In the study I also investigated if leaf proportion of the crop could be useful for predictions of the crop content of metabolizable energy. The cultivars were grown in plots within a variety trial with ryegrasses.

Vallproduktionen i Sverige är av stor betydelse för utfodring av nötkreatur. Vallproduktionen utgör idag 46 % av åkerarealen i Sverige. Skördetillfället avgör till stor del näringsinnehållet i fodret och är därför av stor vikt för att producera ett tillräckligt bra vallfoder. I Sverige finns en webbaserad tjänst (http://www.vallprognos.se) tillgänglig där en prognos om skördetillfälle ges utifrån temperatursumma. Summan 250 dygnsgrader (? (dygnsmedeltemperatur ? 5° C)efter att dygnmedeltemperaturen överstigit + 5° C fem dagar i rad) anses ge ett energivärde på 10,8-11,0 MJ OE/kg ts vilket skulle vara ett bra tillfälle att skörda förstaskörden.