Method for the diagnosis of subclinical mastitis in cows

 

The invention relates to medicine, in particular to veterinary. The method allows to reduce the number of dimensions to reduce labor costs and time spent on research. Spend cows examination of the functional status of breast cancer, while it is determined by measuring the conductivity of biologically active points No. 30, located at 8-12 cm above the caudal edge of the base of the nipple in the rear part of the udder, at negative and positive polarity, calculate the coefficient of electrical conductivity and its value from 0.64 to 0.76 diagnose subclinical mastitis. table 2., 1 Il.

The invention relates to livestock, in particular cattle, and can be used for the diagnosis of subclinical mastitis in cows.

Known methods of diagnosing subclinical form of mastitis in cows: sampling dimattina, mastodinon, Malatesta, the sample sedimentation, measurement of electrical conductivity of milk with the help of the device DMK-4 [1].

The disadvantages of these methods include

- the necessity of using expensive reagents;

the mandatory presence of laboratory equipment;

- the need to use those complex the cows, based on the determination of the functional status of breast cancer by measuring bioelectric potential biologically active centers [2].

The disadvantages of this method are

- a large number of measurements;

- great time to diagnose;

- the complexity of the research.

The objective of the proposed method is to reduce the number of measurements, reducing the complexity and time-consuming to diagnose.

The problem is solved due to the fact that in the known method for the diagnosis of mastitis, which consists in the examination of the functional status of breast cancer, according to the invention the functional status of breast cancer is determined by measuring the conductivity in biologically active points (BAP) No. 30 on the negative and positive polarity, calculate the coefficient of asymmetry of the conductivity and its value from 0.64 to 0.76 diagnose subclinical mastitis.

To clarify the essence of the proposed method presents a picture of a cow, which shows a biologically active point No. 30, located at 8-12 cm above the caudal edge of the base of the nipple in the rear part of the udder [3].

The method is as educating the OI diagnosis and treatment of breast disease.

To measure the asymmetry of the conductivity BAHT cows can be used by devices approved for use in veterinary medicine chief veterinary administration of the USSR 1985 intended for electroacupuncture, for example devices PERT-4 m, PERT-5 and other

Before operation it is necessary to close the output electrodes “+” and “-” between themselves and handle the “current” set on the microammeter the value of the current is 20 μa, then find the desired biologically active point (BAP), which will be confirmed by deviation direction microammeter. After finding BAHT to diagnose her condition by switching the toggle switch “polarity” on the positive and negative polarities, the obtained parameters substituted into the formula and calculate the coefficient of conductivity. When the value of the coefficient of electrical conductivity from 0.64 to 0.76 diagnose subclinical mastitis.

For fixation of the electrodes with suction cups must be connected to a vacuum milking system.

In the process, it is necessary to monitor the occurrence of contact of the electrodes with the body of the animal.

In our experiments we used 250 cows of Simmental and black-and-white breeds at the age of 3-5 years with a live weight of 400-550 kg and the same time sampling mastodinon, which was checked settling probe was installed with the positive response that characterize subclinical mastitis. In parallel physico-chemical study was conducted measuring the electrical conductivity of the positive and negative polarities in BAT No. 30 device PERT-5 and calculated the asymmetry coefficient of the conductivity a, which displays the ratio of conductivity to the negative polarity N (ICA) to this indicator for a positive polarity n (ICA) and is expressed by the formula A=N/n. This cow the conductivity in the positive polarity was equal to 250 μa, and the negative polarity 190 µa, substituting these data into the formula, we obtain the coefficient of asymmetry of conductivity equal 0,76. Other diseases are not detected.

Example 2. The cow after the diagnosis of subclinical mastitis using samples with mastodinon, which was checked settling probe was installed with the positive response that characterize subclinical mastitis. In parallel physico-chemical study was conducted measuring the electrical conductivity of the positive and negative polarities in BAT No. 30 device PERT-5 and calculated the coefficient of asymmetry the barb N (ICA) to this indicator for a positive polarity n (ICA) and is expressed by the formula A=N/n. This cow the conductivity in the positive polarity was equal to 250 μa, and the negative polarity 160 µa, substituting these in the formula received the asymmetry coefficient of the conductivity, is 0.64. Other diseases are not detected.

Example 3. The cow after the diagnosis of subclinical mastitis using samples with mastodinon, which was checked settling probe was installed with the positive response that characterize subclinical mastitis. In parallel physico-chemical study was conducted measuring the electrical conductivity of the positive and negative polarities in BAT No. 30 device PERT-5 and calculated the coefficient of asymmetry of the conductivity a, which displays the ratio of conductivity to the negative polarity N ICA to this indicator for a positive polarity n ICA and is expressed by the formula: A=N/n. This cow the conductivity in the positive polarity was equal to 250 μa, and the negative polarity 180 µa, substituting these data into the formula, we obtain the coefficient of asymmetry of conductivity equal to 0.72. Other diseases are not detected.

The results of the measurement of the coefficient of electrical conductivity in bnta conductivity is fixed disease subclinical mastitis.

The method allows you to quickly and objectively, quantitatively comparable values to diagnose subclinical mastitis in cows.

When the diagnosis of mastitis proposed method decreases the number of measurements and time spent per animal 3.8 minutes (see table 2).

Sources of information

1. Comprehensive ecologically safe system of veterinary animal health. - M.: FGNU “Rosinformagrotech”, 2000. - 300 S.

2. Patent No. 2150881, class. And 61 In 5/04, 1999 (prototype).

3. Petrov, C. A., Musienko C. F., Ivannikov A. A. Fundamentals of electro-acupuncture in cattle. - Sumy: Publishing house “Cossack shaft”, 1997. - 104 S.

Claims

Method for the diagnosis of subclinical mastitis in cows, which consists in the examination of the functional condition of the breast, characterized in that the functional status of breast cancer is determined by measuring the conductivity of biologically active points No. 30 on the negative and positive polarity, calculate the coefficient of electrical conductivity and its value from 0.64 to 0.76 diagnose sub-Christ.

 

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