Tackling the future challenges of Organic Animal Husbandry - vTI

! Agriculture and Forestry Research, Special Issue No 362 (Braunschweig, 2012) ISSN 0376-0723
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and day than the RS diet (Table 3). The main reasons for the differences between the periods were
that RS had the numerically highest milk yield during early lactation whereas C had higher yield
during the late part. The C diet had the highest profitability during the total lactation due to both
higher milk production and lower consumption of the mixed ration (silage and grains). This conclusion
was valid also in the sensitivity analysis using conventional milk and feed prices. Cost of production
and, thus, price of cold-pressed rapeseed cake depends on price of rapeseed and price received
for the rapeseed oil. Also the processing cost influences the price of the cake (Knutsson,
2007). However, the conclusion that C was more profitable than RS during both the late and the
total lactation was valid at all plausible prices of cake and seed.
Suggestions to tackle the future challenges of organic animal husbandry
Both diets resulted in a high production, probably due to feeding rumen degradable protein and sufficient
amounts of carbohydrates simultaneously for the energy supply for the microbial protein
synthesis that could be utilized for production. Microbial protein has an amino acid composition
better suited for the cows’ need compared to amino acids in feeds. Results from the profitability
calculations imply that producing CORC can be of great interest.
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