FI57047C - TILLSATSAEDSE FOER ENSILAGE - Google Patents

Description

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'. (44) Date of publication of the publication. - θΛ

Patent-och registerstyrelsen 'Ansdkan utltgd och utl.skrlfMn published 29.02.00 (32) (33) (31) Requested atuoikaut — Bagird priority 16.03.7 ^

Federal Republic of Germany-Förbundsrepubliken

Tyskland (DE) P 2 ^ 1283 ^ .5

Styrkt (71) Deutsche Gold- und Silber-Scheideanstalt vormals Roessler, Weiss-Frauenstrasse 9 »6000 Frankfurt 1, Federal Republic of Germany Förbunds-republiken Tyskland (DE) (72) Rudolf Fahnenstich, Mömbris, Wilhelm Schuler, Bad Homburg, Herbert Tanner, Hanau, Otto Weiberg, Neu-Isenburg, Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) (7M Oy Kolster Ab (5k) Silage Additive - Tillsatsämne för ensilage

The invention relates to additives for silage. In silage, in the preparation of silage, the formation of lactic acid is essential. In many cases, it is necessary or appropriate to influence the fermentation by mixing additives, namely to promote the growth of lactic acid bacteria and at the same time to prevent undesirable fermentation phenomena, in particular the growth of microorganisms which cause the formation of butyric acid. Crucial to the quality of silage is the fermentation event in the first days in particular.

It is known that at a pH of about k, mainly lactic acid bacteria are viable and therefore acids suitable for adjusting the corresponding pH are added to the silos as additives. For example, formic acid, propionic acid or mixtures of hydrochloric acid and sulfuric acid or phosphoric acid are used. By adding acids, the formation of butyric acid can be prevented initially. It is also known to add salts of said acids. In the case of acidic alkali salts of mineral acids, such as, for example, NaH 2 PO 4). NaHSO 4, corresponds to the effect of almost free acids. However, if neutral salts such as sodium propionate or calcium propionate are used, the effect is slower 57047 and less than with free acids. Especially in the crucial early stage of fermentation, the formation of butyric acid is often insufficiently prevented.

It has now been found that propylene glycol esters of propionic acid are very suitable as additives for silage. Although esters are neutrally reactive substances, the effect is faster and more potent than with acids. This not only prevents undesirable fermentation events, such as the formation of butyric acid, but also progresses the formation of lactic acid. The effect of the ester is greater than that of propionic acid, although the alcohol component of the ester, 1,2-propylene glycol, when used alone proves to be a substance which adversely affects fermentation.

Suitable additives according to the invention are all 1,2-propylene glycol esters of propionic acid, namely propylene glycol-1-monopropionate, propylene glycol-2-monopropionate and propylene glycol-1,2-dipropionate. Individual esters or mixtures of esters can be used as well.

The ester content in the silo can vary within wide limits and is to some extent determined by the quality of the silo and the silage conditions. In general, it is convenient to add at least about 0.01 to 1.0 weight percent ester to the silage. Larger additions, about 2-5 weight percent, are rarely necessary. Preferably, the ester addition is 0.1 to 0.5% by weight.

The esters are preferably used as such. However, they can also be added mixed with other substances. These are substances which in turn act as additives in silage or are preservatives or substances which are inert. The mixture of ester with highly dispersed silica or other absorbent solids can, if necessary, act to convert esters, which are generally poorly water-miscible liquids, to a flowable solid.

The esters used as additives according to the invention are suitable for silage of all kinds, in particular for silage of plants such as hay, alfalfa, vetch, clover, green maize, rape and potatoes.

Example 1

650 g samples of freshly mowed hay were used for silage. A total of 56 samples were examined, divided into 7 groups, each containing 8 samples.

5 57047

Group 1 no additives.

Group 2a 0.2% by weight of propylene glycol was added.

Group 2b 0.4% by weight of propylene glycol was added.

Group Ja 0.2% by weight of propionic acid was added.

Group Jb 0.4% by weight of propionic acid was added.

Group 4a 0.2% by weight of propylene glycol 1,2-dipropionate was added.

Group 4¾ 0.4% by weight of propylene glycol 1,2-dipropionate was added.

Samples were stored in 1 liter coaxially sealed containers at an outdoor temperature of 24 ° C for 90 days.

To determine the quality of silage, fermentation gas loss was used as a measure of nutrient reduction during fermentation. The "silage quality according to odor, color and texture was further determined according to the DLG silage guidelines (Handbuch der Futtermittel, Band 1, (1969), Verlag Paul Parey, Hamburg und Berlin). The results were as follows:

Group Fermentation Loss of Silage

Group average quality _ $> _ 1 7.9 bad 2a 8.2 bad 2b 8.7 bad 3a 3 * 0 good 3b 1.7 very good 4a 1.8 very good 4b 1.3 very good

Example 2

The procedure was as described in Example 1 except that 820 g samples of wet corn grains were silage. A total of 32 samples were used, divided into 4 groups, each of which included 8 similar samples.

Group 1 without addition.

Group 2 0.4% by weight of propylene glycol was added.

Group 3 0.4% by weight of propionic acid was added.

Group 4 0.4% by weight of a mixture of two propylene glycol monopropionates was added.

The results were as follows: 4,57047

Group Fermentation gas loss Average quality of silage group __ 1 5 * 2 poor 2 5 * 5 poor 5 1.2 very good 4 0.9 very good

Example 3

The procedure was as described in Example 1, except that 640 g * of samples of lucerne were in each case silage. A total of 52 samples were used, divided into 4 groups. Each group had Θ samples.

Group 1 without addition

Group 2 was added 0.5 wt% propylene glycol

Group 5 0.5% by weight of propionic acid was added

Group 4 0.2% by weight of propylene glycol 1,2-dipropionate and 0.1% by weight of a mixture of two propylene glycol monopropionates were added.

The results were as follows:

Group Fermentation gas loss Average quality of silage group ___ £ _ X 9 * 5 poor 2 11.4 bad 5 3.7 good 4 2.4 very good