RU2848324C1 - Method for using a feed supplement based on nanoselenium and a complex of amino acids to increase the meat productivity of broiler chickens - Google Patents

Abstract

FIELD: agriculture; veterinary medicine.

SUBSTANCE: method for increasing the meat productivity of broiler chickens involves the use of a feed additive based on nanoselenium, ascorbic acid and a complex of amino acids - lysine, tryptophan, threonine, and methionine. The feed additive is dissolved at a rate of 10 mg per 1 litre of drinking water and contains 0.055 mg of nanoselenium. It is administered with natural fluid intake from day 1 to day 35 of poultry rearing.

EFFECT: preservation of broiler chicken stock and improvement of meat quality.

1 cl, 4 tbl, 1 ex

Description

Field of technology to which the invention relates

The invention relates to biotechnology, agriculture and veterinary science, in particular to the use of biologically active additives for poultry farming, and is intended for use in feeding farm animals, feed production, the creation of biotechnological methods for preserving the livestock of farm animals and increasing productivity indicators.

State of the art

A feed supplement for agricultural poultry (see patent no. 2034503) is known, containing vitamins, micro- and macroelements, and a filler—sucrose and/or starch and/or bran. It contains vitamins A, D3, E, K3, B1, B2, B3, B4, B5, B6, B12, Bc, H, and C as vitamins, and iron, manganese, zinc, copper, iodine, and selenium as micro- and macroelements.

The disadvantage of the given additive is its multi-component nature and multi-stage technological process.

A feed additive consisting of starch paste and sodium selenite is known (see patent no. 2181011). The method for producing the additive involves preparing starch paste, preparing an aqueous solution of sodium selenite in a 1:50 ratio, adding it to the cooled paste, and mixing for 20-30 minutes. The mixture is then evaporated, dried at 40-50°C to a constant weight, and ground to a powder.

A disadvantage of this feed additive is the high losses due to the volatility and toxicity of selenium. The toxicity and availability of selenium depend on the nature of the compound. Inorganic forms of selenium are more toxic than organic forms. Organic selenium can accumulate in the body as a selenium pool and be slowly used as needed. Inorganic selenium has a narrow selenium pool and enters the bloodstream almost immediately. At slightly higher concentrations than the maximum permissible concentration, selenium has a toxic effect, so inorganic forms of selenium are recommended for therapeutic use only. Certain storage conditions are also required. Starch, when exposed to high humidity, can absorb moisture and form a paste, which disrupts the structure of the complex and, as a result, releases sodium selenite, leading to selenium loss through oxidation and volatilization from the mixture.

A feed additive for farm animals and poultry is known, containing protein components, vitamins, as well as citrates of zinc, iron, copper, manganese, cobalt, citric acid mycelium, amino acids, succinic acid, selenium and iodine (see patent No. 2162287).

A drawback of this feed supplement is its content of trace elements, such as selenium and iodine, in inorganic forms. The digestibility of inorganic trace elements in animals and poultry is low, so their dosages in diets are often increased by 1.5-2 times above established standards. This causes toxicosis in animals and poultry and reduces their survival, especially in young animals.

The closest in technical essence and achievable positive effect, and adopted by the authors as a prototype, is a feed additive based on nanoselenium and an amino acid complex for farm animals and a method for its production, containing nanoselenium and amino acid components. The additive is characterized by a nanoselenium content of 3.52% by weight, and the amino acid components include ascorbic acid, threonine, tryptophan, lysine, and methionine (see Patent No. 2824397). A disadvantage is the lack of a feed additive dosage for use in broiler chickens to improve meat productivity and meat quality.

Disclosure of invention

The objective of the proposed invention is to use a feed additive based on nanoselenium and a complex of amino acids to increase the meat productivity of broiler chickens.

Selenium is a micronutrient essential for healthy body function. Selenium deficiency reduces animal productivity and increases the risk of cancer. Nano-selenium is used to prevent diseases caused by selenium deficiency. Ascorbic acid in poultry feed improves animal health and, therefore, increases growth performance. Animal productivity can be improved by adding ascorbic acid to their diet. In addition, ascorbic acid is considered an antioxidant and anti-inflammatory agent. Ascorbic acid supplements have a positive effect on the stress response and increase disease resistance. Ultimately, this improves egg laying rate, hatchability, and bird productivity. Lysine is the second limiting amino acid in poultry diets. Methionine is an essential amino acid, especially for poultry.

The authors received patent No. 2824397 for a feed additive based on nanoselenium and a complex of amino acids for farm animals and a method for its production.

The technical result that can be achieved with the help of the proposed invention is reduced to the use of a feed additive without high energy and labor costs, with increased bioavailability and stability, which can be used as a targeted additive for increasing meat productivity and the quality of poultry meat.

The technical result is achieved by using a method of using a feed additive based on nanoselenium and a complex of amino acids in order to increase the meat productivity of broiler chickens, characterized by the fact that it includes a set of amino acids - lysine, tryptophan, ascorbic acid, threonine, methionine, while the feed additive is taken at a rate of 10 mg per 1 liter of drinking water, selenium is introduced at a dose of 0.055 mg, dissolved in water and fed with natural fluid intake from the 1st to the 35th day of growing poultry.

Brief description of the drawings

Fig. 1 shows the method of using a feed additive based on nanoselenium and a complex of amino acids to increase the meat productivity of broiler chickens, the dynamics of live weight gain of broiler chickens of the Smena-9 cross, Table 1.

Fig. 2 shows the method of using a feed additive based on nanoselenium and a complex of amino acids to increase the meat productivity of broiler chickens, the dynamics of the absolute increase in live weight of broiler chickens of the Smena-9 cross, Table 2.

Fig. 3 shows the method of using a feed additive based on nanoselenium and a complex of amino acids to increase the meat productivity of broiler chickens, the dynamics of the average daily gain in live weight of broiler chickens of the Smena-9 cross, Table 3.

Fig. 4 shows the method of using a feed additive based on nanoselenium and a complex of amino acids to increase the meat productivity of broiler chickens, slaughter rates of broiler chickens of the Smena-9 cross, Table 4.

Implementation of the invention

To improve meat production in broiler chickens, a feed supplement containing nanoselenium and an amino acid complex is administered at a dose of 10 mg per liter of drinking water. It is dissolved in water and administered to the birds during their natural fluid intake from day 1 to day 35 of their growth. Selenium is present at a dose of 0.055 mg. The feeding ration is tailored to the breeding standards and age groups.

Examples of specific implementation of the method of using a feed additive

The experiment was conducted in the vivarium of the Department of Therapy and Pharmacology of the Federal State Budgetary Educational Institution of Higher Education Stavropol State Agrarian University on broiler chickens of the Smena-9 cross.

The experiment was conducted on day-old broiler chickens, 10 birds per group. The primary diet consisted of compound feed that met all quality and nutrient requirements for proper and rapid development. The first group served as a control, receiving only compound feed and water.

The second group, in addition to the compound feed, received a feed additive based on nanoselenium and a complex of amino acids at a rate of 10 mg per 1 liter of drinking water, dissolved in water and fed with natural fluid consumption from the 1st to the 35th day of bird rearing, while selenium was contained in a dose of 0.055 mg.

When analyzing the live weight of broiler chickens, it was found that in the 2nd group this indicator was significantly higher than in the first by 10.0% (Table 1, see graphic section).

The absolute and average daily gain in live weight of broiler chickens by the end of the experiment in the 2nd group was 30.0% higher compared to the first group (Table 2, 3, see graphic section).

The average weight of gutted carcasses in the 2nd group on the 35th day of the experiment was 11% significantly higher than in the first.

Thus, the use of feed additives has a positive effect on productivity indicators in growing broiler chickens and determines the economic feasibility of its use.

Claims (1)

A method for increasing the meat productivity of broiler chickens, including the use of a feed additive based on nanoselenium, ascorbic acid and a complex of amino acids - lysine, tryptophan, threonine, methionine, and the feed additive is taken at a rate of 10 mg per 1 liter of drinking water, while nanoselenium is contained in a dose of 0.055 mg, dissolved in water and fed with natural fluid intake from the 1st to the 35th day of growing poultry.