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Einsatz von Nebenprodukten in der biologischen Milchviehfütterung zur Verbesserung der Lebensmittelkonversionseffizienz

Ertl, Paul and Knaus, Wilhelm (2015) Einsatz von Nebenprodukten in der biologischen Milchviehfütterung zur Verbesserung der Lebensmittelkonversionseffizienz. [Inclusion of by-products in organic dairy cow feeding to improve the edible feed conversion ratio.] Paper at: 13. Wissenschaftstagung Ökologischer Landbau, Hochschule für nachhaltige Entwicklung Eberswalde, 17. - 20. März 2015.

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Summary

Dairy cows are very efficient in converting fibrous forages into nutritious foods for humans. However, when fed potentially human-edible feeds, such as grains and pulses, dairy cows show very low efficiency in terms of net food production. In this debate, by-products are often mentioned as high quality feeds with reduced human-edible fractions for dairy cows. The aim of this feeding trial was therefore to evaluate the effect of a full substitution of a common concentrate mixture (COM) with a mixture including solely industrial by-products (BP) on milk production, feed intake, and the edible feed conversion ratio (eFCR) in organic dairy production. Cows receiving the BP mixture showed higher intakes of fibre fractions and ether extract, while starch intake was reduced as compared to cows receiving the COM mixture. The substitution did not impair feed intake or affect cows´ live weight changes. Milk yield and milk solids were not affected by treatment. However, the eFCR, defined as human-edible output per human-edible input, in the BP-group were about 4 and 2.7 times higher for energy and protein, respectively. In conclusion, this study showed that by-products were adequate substitutes for common concentrates and could greatly improve eFCR.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Nebenprodukte, Lebensmittelkonversionseffizienz, Milchvieh, Biolandbau
Subjects: Animal husbandry > Production systems > Dairy cattle
Food systems > Food security, food quality and human health
Animal husbandry > Feeding and growth
Food systems > Recycling, balancing and resource management
Research affiliation: Austria > Univ. BOKU Wien > Sustainable Agr. Systems - NUWI
International Conferences > 2015: Scientific Conference of the German Speaking Countries > Animal husbandry
ISBN:978-3-89574-885-1
DOI:27359
Related Links:http://www.wissenschaftstagung.de/
Deposited By: Ertl, Paul
ID Code:27359
Deposited On:22 Jun 2015 14:18
Last Modified:14 Jan 2016 11:07
Document Language:German/Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsband der 13. Wissenschaftstagung erschienen.
Häring, A.M., Hörning, B., Hoffmann-Bahnsen, R., Luley, H., Luthardt, V., Pape, J., Trei, G. (Hrsg.)(2015):
Am Mut hängt der Erfolg - Rückblicke und Ausblicke auf die ökologische Landbewirtschaftung.
Beiträge zur 13. Wissenschaftstagung Ökologischer Landbau, Hochschule für nachhaltige Entwicklung Eberswalde, 17.-20. März 2015
Verlag Dr. Köster, Berlin

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