Method for optimizing nutrition of farm animals in terms of essential chemical elements

Abstract

FIELD: biotechnology.SUBSTANCE: method for optimizing the nutrition of farm animals in terms of essential chemical elements is proposed. Broiler chickens from 14 to 42 days of age are given feed, which additionally contains the probiotic strain Bifidobacterium longum at a dosage of 1.26 ml / kg of feed.EFFECT: special purpose allows to obtain safe, environmentally friendly poultry meat products.1 cl, 2 tbl, 1 ex

Description

[0001] The invention relates to biotechnology and can be used to optimize animal nutrition rations for essential chemical elements.

[0002] A method is known for reducing endogenous losses of essential elements (Co, I, Zn) from the body of animals [1], where Wistar rats are administered per os once a day the drug "Laktobifadol" based on lactic acid substances Lactobacillus acidophilus LG1-DEP-VGNKI and bifidobacteria Bifidobacterium Teenis B-1-DEP-VGNKI at a dose of 0.3 g / kg of live substances and the constituent substances of the antiquorum extract Quercus cortex in the amount of 500 ml for 4 weeks of the experiment per head on an empty stomach.

[0003] The disadvantage of this method is that it must be administered to each animal per os per day for 4 weeks.

[0004] A method for correcting the level of heavy metals in the body of cows is known [2], which includes the introduction of a herbal preparation into the body of the animals, characterized in that flaxseed cake is used as an eliminator of heavy metals in the diet at the rate of 1 g per 1 kg of live weight.

[0005] The disadvantage of this method is that flaxseed meal contains phytates, which can additionally bind microelements, reducing their bioavailability and the absorption of other nutrients.

[0006] A method for removing lead and nickel from the body of cows is known [3], which includes the introduction into the body of animals of a biologically active preparation that has the property of forming chelate-type complex compounds, characterized in that a 3.0-3.5-% gel solution of high-molecular chitosan, prepared in a 1% solution of acetic acid, is used as a chelating agent at a dose of 2.5-3.5 ml / kg of body weight 2 times a day for 5 days, after 5 days the administration is repeated.

[0007] The disadvantage of this method is the complexity of preparation and storage of the drug; the chitosan gel solution must be prepared in a 1% acetic acid solution with pH and sterility control, which requires specialized equipment and enhanced sanitary measures.

[0008] The objective of the invention is to optimize the nutrition of farm animals in terms of essential chemical elements in order to increase the productivity of poultry.

[0009] The task was solved by feeding broiler chickens from 14 to 42 days of age feed, which additionally included the probiotic strain Bifidobacterium longum at a dosage of 1.26 ml / kg of feed.

[0010] To implement the method, an experiment was conducted on 7-day-old Arbor Acres broiler chickens at the Federal Scientific Center for Biological Systems and Agrotechnologies of the Russian Academy of Sciences (Orenburg). Three groups (n=35) were formed using the pair-analogue method. Control 1 broiler chickens (K1) received a semi-synthetic diet (SSD) balanced in essential minerals and vitamins, recommended by Osmanyan A.K. (1977) in our modification, at a dosage of 100 g per 1 head; control 2 (K2) received SSD deficient in Mn, Co and Mo, at a dosage of 100 g per 1 head per day, the experimental group (EG) received SSD and additionally, from 14 to 42 days of age, the probiotic strain Bifidobacterium longum at a dosage of 1.26 ml / kg of feed. Broiler chickens from 7 to 13 days – preparatory period.

[0011] Additional administration of the probiotic strain Bifidobacterium longum at a dose of 1.26 ml / kg of feed to the experimental group from 14 to 42 days of age resulted in a significant decrease in manganese in the bone tissue of broiler chickens by 26.9% (p≤0.05), compared to K1 (Table 1, see graphic section). The cobalt level in the experimental group exceeded K1 by 1.6 times (p≤0.05).

[0012] In group K2, a significant decrease in manganese by 1.6 times and cobalt by 2.69 times (p≤0.05) was observed in the bone tissue of broiler chickens, relative to K1. When comparing the experimental group with K2, it was revealed that the probiotic strain Bifidobacterium longum promoted a significant accumulation of manganese by 16.6% and cobalt by 4.3 times (p≤0.05).

[0013] The level of cobalt and molybdenum in the K2 group was reliably reduced by 5.2 times and 1.78 times (p≤0.05), in the experimental group the level of molybdenum exceeded K1 by 21.9% (p≤0.05) (Table 2, see graphic part).

[0014] Additional inclusion of the probiotic strain Bifidobacterium longum at a dosage of 1.26 ml / kg of feed from 14 to 42 days of age in the experimental group exceeded the level of manganese by 1.5 times, cobalt by 6.2 times and molybdenum by 2.28 times (p≤0.05), when compared with K2.

[0015] By analyzing the obtained data, we can draw the following conclusions: this method allows us to obtain safe, environmentally friendly poultry meat products.

[0016] Sources of information

[0017] 1. Patent for invention of the Russian Federation No. 2700617 Method for reducing endogenous losses of essential elements (Co, I, Zn) from the animal body / G.K. Duskaev, S.A. Miroshnikov, O.N. Kvan, I.A. Gavrish, Sh.G. Published 18.09.2019, Bulletin No. 26.

[0018] 2. Patent for invention of the Russian Federation No. 2299589 Method for correcting the level of heavy metals in the body of cows / I.F. Gorlov, I.N. Penkova, I.M. Osadchenko, D.A. Skachkov, A.G. Slyusar. Published 05.27.2007, Bulletin No. 15.

[0019] 3. Patent for invention of the Russian Federation No. 2175234 Method for removing lead and nickel from the body of cows / A.R. Tairova. Published. October 27, 2001, Bulletin No. 30.

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