RU2845676C1 - Method of increasing meat productivity of broiler chickens - Google Patents

Abstract

FIELD: biotechnology; animal agriculture.

SUBSTANCE: invention relates to biotechnology, agriculture and veterinary science, particularly to use of biologically active additives in poultry farming. Method involves application of a fodder additive based on zinc ethylene diamine tetraacetate and a complex of amino acids represented by lysine, tryptophan, threonine and methionine. Fodder additive is taken in amount of 480 mg per 1 l of drinking water; zinc ethylene diamine tetraacetate is introduced in amount of 56.25 mg; the additive is dissolved in water and fed with natural consumption of liquid from 1st to 35th day of poultry growing.

EFFECT: invention usage allows to enhance broiler chickens meat productivity.

1 cl, 4 tbl

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, creating biotechnological methods for preserving the livestock of farm animals and increasing productivity indicators.

State of the art

A feed additive is known that contains iron, zinc, cobalt, manganese and copper salts, potassium iodide, and sodium selenite. The use of such an additive increases the average daily live weight gain of animals (Patent of the Russian Federation No. 2034502, 10.05.1995).

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 doses of microelements. In addition, they are used in the composition of rations and feed additives in inorganic form. The digestibility of microelements in inorganic form is low in animals and poultry, due to which their dosages in the composition of rations are often increased by 1.5-2 times higher than the established norms, which causes toxicosis in animals and poultry and reduces their survivability, especially young animals. All this increases the cost of known feed additives, and they are often not economically justified (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 chelate compounds of citric acid salts - citrates of zinc, iron, copper, manganese, cobalt, citric acid mycelium, amino acids, succinic acid. Its use in feeding helps to increase the growth rate of fattening pigs by 11.9-14.0%, the egg production rate of laying hens by 1.4-10.5%, reduce feed costs for pig growth and egg productivity of laying hens by 1.7-14.3%, increase the content of vitamins A and C in the liver and meat by 11.5-15.0%, reduce 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 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 a dose and method of administering 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 compensates for zinc deficiency. Its mechanism of action: the amino acid chelate, being a neutral molecule, is not digested before absorption by the gastrointestinal tract cells and is not separated in the stomach, but remains in the form of the original molecule and is easily absorbed, penetrating the membrane of the cells of the gastric microvilli. This also helps to avoid the action of antagonist substances. The chelate complex prevents the absorption of toxins and the release of toxins into the intestinal lumen, i.e. it has an astringent and antiseptic effect. Zn-EDTA helps to reduce feed conversion. Zinc, which is part of the complex, increases the average daily weight gain due to the activation of digestive enzymes, reduces piglet mortality, improves the reproductive function of sows and boars. It participates in the processes of growth, hematopoiesis, reproduction, differentiation and stabilization of cell membranes, tissue respiration and many other physiological processes in the animal's 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 that 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 using a method of using a feed additive based on zinc ethylenediaminetetraacetate and a complex of amino acids for birds 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 480 mg per 1 liter of drinking water, zinc is introduced at a dose of 56.25 mg, dissolved in water and watered with natural fluid consumption from the 1st to the 35th day of growing poultry.

Brief description of the drawings

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

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

Table 3 – method of using a feed additive based on zinc ethylenediaminetetraacetate and a complex of amino acids to increase meat productivity of agricultural poultry, dynamics of average daily live weight gain of broiler chickens of the Smena-9 cross.

Table 4 – method of using a feed additive based on zinc ethylenediaminetetraacetate and a complex of amino acids to increase meat productivity of agricultural poultry, slaughter rates of broiler chickens of the Smena-9 cross.

Implementation of the invention

To increase the meat productivity of broiler chickens, a feed additive based on zinc ethylenediaminetetraacetate and a complex of amino acids is used at a rate of 480 mg per 1 liter of drinking water, while it is dissolved in water and given to drink during natural fluid consumption from the 1st to the 35th day of growing the bird, while zinc is contained in a dose of 56.25 mg. The feeding ration corresponds to the technological standards of growing 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 Stavropol State Agrarian University on broiler chickens of the Smena-9 cross.

The experiment was conducted on day-old broiler chickens in the amount of 10 heads for each group, the main diet was compound feed that met all the requirements for quality and content of nutrients necessary for the correct and rapid development of the bird. The first group was the control, received only compound feed and water.

The second group, in addition to the combined feed, was given a feed additive based on zinc ethylenediaminetetraacetate and a complex of amino acids at a rate of 480 mg per 1 liter of drinking water, dissolved in water and given to drink at natural fluid intake, from the 1st to the 35th day of bird rearing, while zinc was contained in a dose of 56.25 mg.

When conducting an analysis of 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).

The absolute and average daily gain in live weight of broiler chickens by the end of the experiment in the 2nd group was 25.0% higher compared to the first group (Table 2, 3).

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 11.0% (Table 4).

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 480 mg per 1 liter of drinking water, while zinc ethylenediaminetetraacetate is administered at a dose of 56.25 mg, dissolved in water and fed with natural fluid consumption from the 1st to the 35th day of growing the bird.