RU2771176C1 - Method for preparing a biologically active feed additive for cows - Google Patents

Abstract

FIELD: agriculture.SUBSTANCE: invention relates to the field of agriculture, and in particular to a method for preparing a biologically active feed additive for cows. The method is characterized by the fact that dried pine needles and crushed pine nut shells are poured with water at a temperature of 100°C and infused in a hermetically sealed container for 24 hours. The resulting water infusion is filtered and arabinogalactan is added, stirred until it is completely dissolved. Components are used in a certain ratio.EFFECT: use of the invention will increase the milk productivity of cows, improve the quality of milk.1 cl, 2 tbl

Description

The invention relates to the field of agriculture, and in particular to a method for preparing a biologically active feed additive for cows from forest resources.

Known feed additive for cows "Coniferous Plus" [patent RU 2728463 C1, IPC A23K50/10, A23K10/30, publ. 07/29/2020], characterized by the fact that it contains coniferous flour, crushed pine nut shells, arabinogalactan and the enzyme preparation Amylosubtilin G3x. Moreover, the initial components are taken in the following ratio, wt. %: softwood flour - 45.5; crushed pine nut shell - 45.5; arabinogalactan - 4.5; Amylosubtilin G3x - 4.5. The application of the invention allows to increase the milk productivity of cows by 9.9%, the amount of milk fat - by 18.5%, milk protein - by 1.8%.

The disadvantage of the additive is that for the production of softwood flour, the inevitable costs of funds for the purchase of equipment for the production of softwood flour, its drying and grinding, as well as the cost of electricity consumption during the operation of this equipment. In addition, the introduction of the additive in dry form requires additional labor costs for the attendants for dosing and packaging individual portions of the additive for each blood.

The closest analogue adopted for the prototype is a method of increasing the productivity of young farm animals [patent RU 2600698 C1, IPC A23K10/32, A23K50/10, publ. 10/27/2016], which consists in the fact that for feeding calves and piglets during the milk growing period, a feed additive is used - a crude aqueous extract of biomass, including wood and bark of Siberian larch and Gmelin larch. The use of the invention allows to increase the average daily weight gain of calves by 31.2%, weaned piglets - by 37.0%.

The disadvantage of the invention is the complexity and duration of the technological process, since for the preparation of a feed additive - an aqueous extract, a double extraction of raw materials was carried out, which significantly increases energy and labor costs, and the final cost of production of the additive.

In addition, the prepared extract contained arabinogalactan in an unpurified form, which reduces its availability for the animal organism, as well as the nutritional and energy value of the supplement, since this plant polysaccharide serves as a source of energy in the animal organism and enhances its adaptive and protective functions.

The objective of the present invention is to develop a method for preparing a biologically active feed additive for cows, which helps to increase their milk production, milk quality and reduce the cost of production.

The technical result of the invention is a method for preparing a biologically active feed additive for cows, which helps to increase the milk productivity of cows and improve the quality of milk.

The technical result is achieved by the fact that the method of preparing a biologically active feed additive for cows is characterized by the fact that dried pine needles and crushed pine nut shells are poured with water at a temperature of 100 ° C and infused in a hermetically sealed container for 24 hours, the resulting water infusion is filtered and added arabinogalactan, stir until it is completely dissolved, while the components are used in the following ratio, g/l: pine needles - 15; pine nut shell - 25; arabinogalactan - 25.

The essence of the invention lies in the fact that the feed additive is produced by infusing dry pine needles and crushed pine nut shells in water at a temperature of 100 ° C for 24 hours at room temperature, filtering the extract and adding arabinogalactan to it until it is completely dissolved, in the ratio, g / l: pine needles - 15, pine nut shell - 25, arabinogalactan - 25.

An example of the preparation of a feed additive

The proposed feed additive is produced from an aqueous infusion of dry needles of Scots pine (lat. Pinus sylvestris), crushed pine nut shell (lat. Pínus sibírica) and arabinogalactan.

In the production of additives, pine needles are separated from the branches by a mechanical method and dried to a constant weight at room temperature. Dry pine nut shells are crushed in a crusher to a particle size of not more than 4 mm.

Dried pine needles and crushed pine nut shells are placed in a steaming container, poured with hot water at a temperature of 100 ° C, brought to a volume of 10 liters, hermetically sealed with a lid and infused for 24 hours. The resulting aqueous infusion is filtered through a sieve and then arabinogalactan is introduced, stirring until it is completely dissolved. The additive components are used at the following ratio, g/l:

pine needles - 15;

pine nut shell - 25;

arabinogalactan - 25.

The shelf life of the finished infusion in the refrigerator is no more than 5 days at a temperature of + 5 ° C.

The experiment was carried out on black-motley cows for 100 days. Control and experimental groups were formed according to the principle of analogues.

The experimental cows were fed according to the scheme of the experiment presented in Table 1.

Table 1

Group Number of animals, head. Duration of experience, days Feeding conditions Control ten 100 Basic ration (RR) Experienced ten 100 OR + water infusion (200 ml/animal/day): pine needles (15 g/l), pine nut shells (25 g/l), arabinogalactan (25 g/l)

The water infusion was fed to the cows once a day by adding the infusion to an individual drinking bowl with water.

During the experiment, the milk productivity of cows was determined (Table 2).

Milk productivity of cows for 100 days of lactation

table 2

Indicator Group control experienced Milk yield, kg 2629.34±56.77 2846.63±71.05 ^* Average daily milk yield, kg 26.29±0.57 28.46±0.71 ^* Mass fraction of fat, % 3.76±0.06 3.94±0.06 ^* Mass fraction of protein, % 2.93±0.11 2.96±0.08 The amount of milk fat, kg 99.04±3.00 112.20±3.17 ^* The amount of milk protein, kg 79.28±5.35 83.58±4.37 Amount of milk of basic fat content (in terms of 3.4%), kg 2912.34±88.19 3299.95±93.19 ^* The ratio of fat to protein 1.28:1 1.33:1

Here and below: ^* P>0.95; ^** P>0.99.

As a result of the research, it was found that for 100 days of lactation, the cows of the experimental group had the highest milk productivity, their milk yield was 8.3% higher compared to the control group (P> 0.95); mass fraction of fat in milk - by 0.18% (P>0.95), the amount of milk fat - by 13.3% (P>0.95), the amount of milk protein - by 5.4%, the amount of milk with basic fat content - by 13.3% (P>0.95). The ratio of fat to milk protein in both groups corresponded to the norm.

Thus, an aqueous infusion of pine needles and crushed pine nut shells, in which arabinogalactan is dissolved, contains a complex of substances with high biological activity that have a positive effect on the animal body and helps to increase milk productivity.

Obtaining an infusion is one of the easiest and most cost-effective ways to extract biologically active substances from plant materials, which does not require additional costs for the purchase of equipment and can be used both on large farms, complexes, and in personal subsidiary farms.

The use of the invention makes it possible to increase the range of feed additives from forest resources, to reduce the costs for the production of softwood flour, for individual packaging and packaging of the dry additive.

Claims (4)

A method for preparing a biologically active feed additive for cows, characterized in that dried pine needles and crushed pine nut shells are poured with water at a temperature of 100 ° C and infused in a hermetically sealed container for 24 hours, the resulting water infusion is filtered and arabinogalactan is added, stirred until it is completely dissolution, while the components are used in the following ratio, g/l: pine needles - 15; pine nut shell - 25; arabinogalactan - 25.