RU2229828C1 - Method of preserving green foods - Google Patents

Abstract

FIELD: cattle breeding. SUBSTANCE: green foods are preserved using as preservative a polyester production waste, in particular sodium acetate trihydrate taken in amount 5-6 g per 1 kg of green grain crop. EFFECT: reduced expenses on preservative and achieved high preservation of silage nutrients.

Description

The invention relates to animal husbandry, specifically to methods for preserving green feed, and can be used for their silage.

Conservation of green feed is widely used in feed production, including the use of organic acids, their mixtures and salts [1].

The preserving effect of acids is associated with acidification of the silage due to the formation of hydrogen ions during dissolution of acids. Anions and undissociated acid molecules also have a preserving effect.

Most often, liquid organic acids are used - formic, acetic, propionic and their mixtures, for example, KNMK. Acetic acid and propionic acid are formed in the animal’s stomachs and can be attributed to the natural metabolites of ruminants [2], promote metabolism, increase the fat content of cow’s milk. In recent years, they began to get good silage when preserving cereal crops. Methods of preserving green forages of cereal crops using acetic acid and KNMK with a consumption of 04-0.5% [3] are described. At the same time, for example, when preserving the green mass of Sudanese, the protein loss using KNMK (0.4%) is reduced from 29.0 to 18.6% compared to silo without a preservative.

The disadvantages of the method are: the relatively high cost of preservatives and the difficulties in their transportation and storage (use of corrosion-resistant materials).

The technical result - the search for affordable affordable convenient practice methods of preserving and improving the safety of nutrients in the silo.

This is achieved by the fact that in the proposed method for preserving green cereal feed, an inexpensive chemical preservative is used - sodium acetate trihydrate - a waste product from the production of polyesters (polytetramethylene ether glycol, polyfurite).

The waste product is a white powdery product with a grayish tint, containing wt.%:

Sodium Acetate 55-57;

Water-insoluble residue of polyesters 0.2-2;

Water Else

The production waste is highly soluble in water, a low-hazard substance, easily transported and stored. Conservation consumption is 5-6 g per 1 kg of green mass. Sodium acetate is well absorbed by the animal organism, it is an energy-enriching additive, has a bactericidal effect on harmful microflora, increases the safety of feed nutrients, especially protein, without interfering with lactic acid fermentation.

Example.

In laboratory conditions, the crushed green mass of cereal crops - winter rye - with a moisture content of 83% is loaded in a sealed container with a moisture content of 83% and uniformly added production waste - sodium acetate trihydrate with a flow rate of 5.5 (on dry matter) per 1 kg of mass, compacted, sealed and left for storage.

After 40 days, the container is opened and the quality of the silo is assessed. At the same time, the green mass is preserved using CNMK at a dose of 4.5 g per 1 kg of the mass and without preservative. In both cases, high-quality silage is obtained, yellow-green in color with the smell of acidic vegetables with a preserved structure. Zootechnical analysis of the initial mass and silos showed the following results:

The content of lactic acid in the silo without a preservative is 40% (of the total amount of acids) with KNKM and sodium acetate trihydrate, respectively 60 and 61%.

Thus, the proposed method allows the use of an inexpensive, affordable, easy-to-use preservative - sodium acetate trihydrate - a waste of the production of polyesters, to ensure higher preservation of nutrients.

Sources of information:

1. S.Ya. Zafren. Technologies for the preparation of feed. M .: Kolos, 1977, p. 135.

2. H.B. Boraev, I.M. Volokhov, B.A. Goldvarg. Chemical preservation and enrichment of feed. Elista, Kalmyk Book Publishing House, 1983, p.26.

3. Kh. B. Boraev, I. M. Volokhov, B. A. Goldvarg. Chemical preservation and enrichment of feed. Elista, Kalmyk Book Publishing House, 1983, p. 59, tab. 10.

Claims (1)

A method of preserving green feed, mainly cereal crops, including grinding the feedstock and adding a preservative, characterized in that the waste product used for the production of polyesters is sodium acetate trihydrate with a consumption of 5-6 g per 1 kg of green feed mass.