RU2847663C1 - Method for increasing meat productivity in broiler chickens - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: method for increasing the meat productivity of broiler chickens involves the use of a feed supplement based on zinc ethylenediaminetetraacetate and a complex of amino acids: lysine, tryptophan, threonine, methionine, wherein the feed additive is taken at a rate of 380 mg per 1 litre of drinking water, with zinc ethylenediaminetetraacetate contained in a dose of 45.0 mg, dissolved in water and given to drink during natural fluid consumption from day 1 to day 35 of poultry rearing.

EFFECT: increased bioavailability and stability of the feed supplement to increase the meat productivity of broiler chickens.

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 additive containing iron, zinc, cobalt, manganese, and copper salts, potassium iodide, and sodium selenite is known. Use of this additive increases the average daily live weight gain of animals (Russian Federation Patent No. 2034502, May 10, 1995).

The disadvantage of this feed additive is the high cost of its production.

A common drawback of known feed additives is the lack of optimal micronutrient dosages. Furthermore, these micronutrients are used in inorganic form in diets and feed additives. The digestibility of inorganic micronutrients in animals and poultry is low, leading to their dosages in diets often exceeding established standards by 1.5-2 times. This causes toxicosis in animals and poultry and reduces their survival rate, especially in young animals. All this increases the cost of known feed additives, making them often economically unjustified (Zankevich A. Yu., Anisimov A. I., Kozlov V. P., Naumov E. G., Astapov V. K., Zankevich O. G., Pravdin V. G., 2000).

A feed additive for farm animals and poultry is known, which contains protein components, vitamins, and chelated compounds of citric acid salts - citrates of zinc, iron, copper, manganese, cobalt, citric acid mycelium, amino acids, succinic acid. Its use in feeding contributes to an increase in the growth rate of fattening pigs by 11.9-14.0%, the intensity of egg production in laying hens by 1.4-10.5%, a decrease in feed costs for pig growth and egg production of laying hens by 1.7-14.3%, an increase in the content of vitamins A and C in the liver and meat by 11.5-15.0%, and a decrease in the level of toxic elements (potassium and lead) in the liver by 11.5 and 21.8% (see patent 2162287).

The disadvantage of this supplement is its multi-component nature.

The closest in technical essence and the achieved positive effect and adopted by the authors as a prototype is a feed additive based on zinc ethylenediaminetetraacetate, a complex of amino acids for birds and farm animals and a method for its production, characterized in that the mass fraction of zinc is 11.88%, the set of amino acids includes threonine, tryptophan, lysine, methionine (see patent No. 2823608).

The disadvantage is the lack of dosage and method of administration of the feed additive to poultry to increase meat productivity and meat quality.

Disclosure of invention

The objective of the proposed invention is to use a feed additive based on zinc ethylenediaminetetraacetate, a complex of amino acids for birds, in order to increase the meat productivity of broiler chickens.

The Zn-EDTA chelate complex replenishes zinc deficiency. Its mechanism of action: the amino acid chelate, being a neutral molecule, is not digested before absorption by gastrointestinal cells and is not separated in the stomach. Instead, it remains as the original molecule and is easily absorbed by penetrating the membrane of gastric microvilli. This also helps prevent the effects of antagonists. The chelate complex prevents the absorption of toxins and their release into the intestinal lumen, thereby exerting an astringent and antiseptic effect. Zn-EDTA helps reduce feed conversion. Zinc, included in the complex, increases average daily weight gain by activating digestive enzymes, reduces piglet mortality, and improves the reproductive function of sows and boars. It is involved in growth, hematopoiesis, reproduction, differentiation and stabilization of cell membranes, tissue respiration, and many other physiological processes in the animal body.

Amino acids are the structural chemical units that form proteins and are 16% nitrogen. The importance of amino acids for the body is determined by the enormous role proteins play in all life processes.

The authors received patent No. 2823608 for a feed additive based on zinc ethylenediaminetetraacetate and a complex of amino acids for birds and 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 target additive.

The technical result is achieved by using a method of using a feed additive based on zinc ethylenediaminetetraacetate and a complex of amino acids for poultry in order to increase the meat productivity of broiler chickens, characterized by the fact that it includes a set of amino acids - lysine, tryptophan, threonine, methionine, while the feed additive is taken at a rate of 380 mg per 1 liter of drinking water, zinc is introduced at a dose of 45.0 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

Figure 1 shows the method of using a feed additive based on zinc ethylenediaminetetraacetate and a complex of amino acids for poultry in order to increase the meat productivity of broiler chickens, the dynamics of live weight gain of broiler chickens of the Smena-9 cross, Table 1.

Figure 2 shows the method of using a feed additive based on zinc ethylenediaminetetraacetate and a complex of amino acids for poultry in order 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.

Figure 3 shows the method of using a feed additive based on zinc ethylenediaminetetraacetate and a complex of amino acids for poultry in order 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.

Figure 4 shows the method of using a feed additive based on zinc ethylenediaminetetraacetate and a complex of amino acids for poultry in order 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 zinc ethylenediaminetetraacetate and a complex of amino acids is used at a dose of 380 mg per 1 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. The zinc content is 45.0 mg. The feeding ration is consistent with 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 zinc ethylenediaminetetraacetate and a complex of amino acids at a rate of 380 mg per 1 liter of drinking water, dissolved in water and given to drink at the natural consumption of liquid, from the 1st to the 35th day of growing the birds, while zinc was contained in a dose of 45.0 mg.

When analyzing the live weight of broiler chickens, it was found that in the 2nd group, by the end of the study, 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 24.0% 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 significantly higher than in the first, by 11% (Table 4, see graphic section).

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 zinc ethylenediaminetetraacetate and a complex of amino acids: lysine, tryptophan, threonine, methionine, characterized in that the feed additive is taken at a rate of 380 mg per 1 liter of drinking water, while zinc ethylenediaminetetraacetate is contained in a dose of 45.0 mg, dissolved in water and fed with natural fluid intake from the 1st to the 35th day of growing poultry.