Mineralstoffgehalte in Körnerleguminosen und Sommergetreide

Summary

In addition to the calculation of the metabolizable energy in feed for pigs and poultry, for cattle, and the Net Energy Lactation (NEL) for cows, the study also considers the contribution of other components, such as minerals, to the feed value. Data available to date, often from older sources, based on conventionally produced feed stuffs (DLG 1973). The data presented in this paper gives an overview of the mineral contents (P, K, Na, Ca and Mg) of the grain legumes pea, field bean, white, yellow and blue lupine and some summer cereals like oats, barley and wheat. Further, the effects of variety and year (weather conditions) are described. The well-defined material from the years 2002-2005 came from field experiments at the experimental farm of the Institute of Organic Farming (FAL) in Trenthorst. The results show a wide variability between the years and sometimes between the varieties. Differences exist to standard tabular values of the DLG (1973) but also to the data given by the Bavarian LfL (Anonym 2005) for the organic pig keeping. The standard tabular values can be helpful, but an examination of the own feedstuffs is often the better way for a good calculation of the feed rations.