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Thüringer Ministerium für Infrastruktur und Landwirtschaft
Thuringia
Werner-Seelenbinder-Str. 8
99096 Erfurt
Website: External link to the authority
Cofermentation for treatment of pig feed
Objective of the project was to test the suitability of regional protein feed and their byproducts in cofermentation with cereal as ration component in pig feeding as substitution of soja imports. In laboratory fermenters the optimal process parameters were developed (examination of different inoculum, process temperature, retention time, influence of different raw materials). Through the process the non available feed components should get digested by the produced lactic acid and thus increase the digestibility of the feed substances and inhibit anti-nutritive components.
In the project, initially 7 forage crops and 3 by-products were investigated in laboratory fermenters concerning their applicability for feed fermentation and different starter bacterial cultures were tested. The laboratory results were successfully implemented on an industrial scale with the fermentation of peas, field beans and rapeseed expeller. Peas were also used for the feeding experiments because of their regional availability. The application tests were carried out on sows and suckling piglets as well as mass pigs.
The feed components examined were basically suitable for feed fermentation. No further optimization potential could be generated through the use of enzymes. A first important indicator for the fermentation process is the pH value (after 6 hours to pH <4; confirmation of the fermentation success via the lactic acid concentration (on average 22.6 g/kg ferment)). The feeding experiments showed a high potential of the fermented feed mixtures on the performance of the sows. The feeding to weaned piglets showed that the rations still need to be optimized. The application tests on fattening pigs indicate that the feed value of fermented feed is higher, but that more bacon (+1.0 mm) and less meat (-2.5 mm) were analyzed after slaughter. It is thus very necessary to develop concrete data on the exact feed value of fermented feed in fattening pigs.
Animal husbandry
Rural development 2014-2020 for Operational Groups (in the sense of Art 56 of Reg.1305/2013)
Uthlebener Qualitätsschweine GmbH & Co. KG
Steinbrücker Weg 13
99765 Uthleben
Phone: 03631 656 766
Email: hansheijligers@vanastengroup.eu
2017
completed
181,552
2016 LFE 0001
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