RU2251263C1 - Method for evaluating growth energy according to physiological value in calves - Google Patents

Abstract

FIELD: animal science.

SUBSTANCE: one should measure bioelectric potential in biologically active centers N 5, 7, 11, 41, 44 to establish its average value and at its value being above 48 mcA one should conclude upon high growth energy in calves. The application of the suggested method enables to predict potential growth energy in calves beforehand.

EFFECT: higher efficiency and accuracy of evaluation.

2 ex, 1 tbl

Description

The invention relates to livestock, in particular to livestock, and can be used to predict the potential growth energy of calves.

Known methods for predicting animal productivity, for example, on the structure of the skeleton, live weight, volume and structure of internal organs, by definition of the mass of young animals [1, 2, 3].

The disadvantages of the known methods include: the complexity of laboratory research, the need to use expensive equipment and qualified specialists, a lot of labor.

The closest analogue to the proposed method is a method for assessing the growth energy of calves by physiological indicators characterizing the activity of the thyroid gland. There is a known relationship between the intensity of the increase in body weight of animals with the level of thyroid hormones in the blood. Hypofunction of the thyroid gland increases the deposition of substances in the body, and hyperfunction leads to a deficit balance [4].

The disadvantages of this method are:

- the need to use highly qualified specialists;

- the need to use expensive equipment;

The objective of the invention is the elimination of the need to attract highly qualified specialists and the use of expensive equipment.

The problem is solved due to the fact that in the known method consisting in the study of physiological parameters associated with calf growth energy, according to the invention, as the physiological indicator associated with calf growth energy, the measurement data of the bioelectric potential in biologically active centers (BAC) No. 5 are used , 7, 11, 41, 44, find its average value and, with a value of more than 48 μA, state high calf growth energy.

Measurements of the BAC calves bioelectric potential are carried out at acupuncture points No. 5, 7, 11, 41, 44, intended for the prevention and treatment of obstetric and gynecological diseases in cattle [5].

Locations of the BAC are as follows:

No. 5 - on the dorsomedial line of the body between the 1st and 2nd spinous processes of the lumbar vertebrae;

No. 7 - on the dorsomedial line of the body in the recess between the spinous process of the last lumbar vertebra and the first sacral vertebra;

No. 11 - on the dorsomedial line of the body in the recess between the last two sacral vertebrae;

No. 41 - on the medial line of the body at a distance of three times the width of the palm below the anus;

No. 44 - three fingers across below the lower edge of the patella, lateral by one transverse finger from the scallop of the tibia.

For measuring the biopotential of BAC calves, any device designed to conduct electroacupuncture or taking biopotentials of BAC calves of human and animal skin, for example, ELAP devices, can be used. The experiments used 30 calves aged 1 to 6 months.

Example 1. Calf at the age of 6 months, black-motley breed. Immediately prior to weighing, the bioelectric potential was measured with an ELAP type milliammeter in five surface-localized BACs of the skin. According to measurements, the average bioelectric potential of five BACs was 39.2 μA. The average daily weight gain was 230 g.

Example 2. Calf at the age of 6 months, black-motley breed. Immediately prior to weighing, the bioelectric potential was measured with an ELAP type milliammeter in five surface-localized BACs of the skin. According to measurements, the average bioelectric potential of five BACs was 48.5 μA. The average daily weight gain was 340 g.

As a result, a close correlative relationship (P <0.01) was established for the level of bioelectric potential of the BAC of calf skin and their growth energy.

The higher the gain in live weight of the calves, the higher the level of bioelectric potential of the BAC of the skin. In calves with an average daily weight gain in the range of 256-350 g, the BAC biopotential was on average 8.6 μA more than in calves with an average daily gain in the range of 209-255 g (see table).

When using the proposed method to attract highly qualified specialists and the use of expensive equipment is not required.

Using the proposed method will allow to predict in advance the potential growth energy of calves and exclude the cost of maintaining and raising low-productive animals.

Table
The bioenergetic potential of calves with different growth energies. Group The number of animals in the group, goal. The average daily gain in live weight, g The average biopotential of the BAC submarine, μA 1 to) fifteen 209-255 39.7 ± 0.50 2 fifteen 256-350 48.3 ± 0.27 **

Sources of information

1. Instructions for the appraisal of cattle of dairy and dairy-meat breeds. M .: Kolos, 1975.

2. Vasilieva EA Clinical biochemistry of farm animals. M .: Rosselkhozizdat, 1982.

3. Vrakin V.F., Kovalchuk I.S. Milk productivity of cows and ways to predict it. Overview information. M. 1977.

4. Eidrigevich E.V., Raevskaya V.V. Interior S.-kh. animals. M .: Kolos, 1978, p. 94-95 - prototype.

5. Recommendations. The use of acupuncture methods for the prevention and treatment of obstetric and gynecological diseases of cows and bull impotence. M .: TSNTI, 1994.

Claims (1)

A method for evaluating calf growth energy, consisting in the study of physiological indicators related to growth energy, characterized in that as a physiological indicator, the bioelectric potential measurement data in biologically active centers No. 5, 7, 11, 41, 44 are used, the average indicator is calculated and values greater than 48 μA indicate a high calf growth energy.