Investigations on ensilability of pea and field bean seeds

Autor: GEFROM, A. UND OTT, E.M.
In:

Proceedings of the Society of Nutrition Physiology

Herausgeber: Martens, H.
Bandangabe: 15
Seite: 93Jahr: 2006

Einordung:
Institut: Professur Ernährungsphysiologie und Tierernährung

Abstract:
Patchy maturation in legumes is a known problem resulting in high post harvest costs for technical drying of the seeds. Harvesting and ensiling the seeds with approximately 65 % DM could be a possibility to produce a low cost feed high in protein from local sources. Thus, first results on ensiling of pea and field bean seeds are presented.

Methods:
Bruised dry seeds of field bean (Limbo) and pea (Lisa) were used for an ensiling study. After adjusting the DM content of the grist to 65 % (using aqua dest.), 600 g of this material were filled in plastic bags (3 per treatment) either pure, with molasses addition (2% of fresh matter [FM]) or inoculated with lactic acid bacteria (LAB; 3 different commercial products, 1x105 - 3x105 cfu/g FM) alone or in combination with molasses. Air was evacuated. Bags were sealed and stored at 20°C for 34 days. After incubation fermentation parameters as mentioned in table 1 were determined by HPLC or GC. A T-test (Duncan) was performed to compare the results of treatments and control.

Results:
Organoleptic evaluation of the silages showed good quality in all variants tested. PH was below the DM dependent critical value in all variants and acidification resulted from lactic acid produced in considerable amounts. The contents of acetic and propionic acid were low. Inoculation with LAB could suppress production of BA in peas and reduce the amounts of alcohol produced both in field beans and peas. Addition of molasses showed no or only minor effects.

Table 1 Fermentation parameters of model silages after 34 days of storage (% DM)

...


Conclusion:
Ensiling bruised seeds of pea and field bean with high DM contents (rehydrated) results in anaerobically stable silages of good quality. Ensiling studies on pea and field bean seeds harvested with DM contents of 65 % are scheduled.

Die Förderung des Vorhabens erfolgt aus Mitteln des BMVEL über die Bundesanstalt für Landwirtschaft und Ernährung (BLE).

Ansprechpartner

Zur Publikation: Mitarbeiter, Projekte
Weitere Publikationen im Forschungsteilschwerpunkt