RU2267269C1 - Method for stimulating reproductive function in sows - Google Patents

Abstract

FIELD: animal science.

SUBSTANCE: the present innovation deals with affecting biologically active centers in sows №5, 7, 11, 41, 44 with a metal rod kept in liquid nitrogen for 10-15 min, per 2-3 sec daily, for 10 d after weaning piglets.

EFFECT: higher efficiency of stimulation.

1 dwg, 1 ex, 1 tbl

Description

The invention relates to animal husbandry, in particular to pig farming, and can be used to stimulate the reproductive function of sows.

Known methods of stimulating the reproductive function of sows using antioxidants [1, 2], hormones, immune serums, antibiotics, tissue stimulants [1], and male pheromones [2].

The disadvantages of these methods include:

the need to use expensive reagents and laboratory equipment;

- the high cost of drugs;

- lack of effectiveness.

The closest analogue to the proposed method is a method of stimulating the reproductive function of pigs by acting on biologically active centers (BAC) of the body No. 5, 7, 11, 41, 44 using microinjections of 2 ml of 0.1% atropine solution [4].

The disadvantages of this method are:

- the need for highly qualified specialists;

- lack of effectiveness of stimulation.

The objective of the proposed method is its simplification and cost reduction by eliminating the need to attract highly qualified specialists and increasing the efficiency of stimulation of the reproductive function of sows.

The problem is solved due to the fact that in the known method of stimulating the reproductive function of pigs, which consists in exposing the biologically active centers of sows No. 5, 7, 11, 41, 44, according to the invention, the effect on the biologically active centers is carried out with a metal rod, soaked in liquid nitrogen in for 10-15 minutes, for 2-3 seconds daily, for 10 days after weaning, the piglets are measured, then the biopotential level is measured at five centers, the average value is calculated and, with a value of 63.0 μA or more, it is increased the reproductive ability of sows.

To clarify the essence of the proposed method presents a drawing of a sow (drawing).

The presented figure shows biologically active centers:

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

No. 7 - on the dorso-medial 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 dorso-medial line of the body in the recess between the 2nd immobile and 3rd movable caudal vertebrae;

No. 41 - on the medial line of the body at a distance of one width of the palm and two widths of the fingers under the vulva;

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

The stimulation tool is a metal rod bent at an angle of 90 ° with a wooden handle, 300 mm long and 8 mm in diameter.

In the experiments, we used two groups of sows of large white breed, aged 3-6 years, with a live weight of 200-230 kg, five animals in each group.

Example. The sow was 5 years old and had a live weight of 220 kg. Measured the level of bioelectric potential (UBP) BAC No. 5, 7, 11, 41, 44, calculated the average value. To stimulate the reproductive function of sows, piglets were exposed daily for 10 days after weaning to the biologically active centers of the body No. 5, 7, 11, 41, 44 with a metal rod aged 10-15 minutes in liquid nitrogen, 2-3 seconds for each center . Then measured the level of BAC bioelectric potential No. 5, 7, 11, 41, 44 and calculated the average value. With an average biopotential of 63.0 μA or more, an increase in the reproductive ability of sows is established (table).

To measure the biopotential of the BAC of sows, any instrument designed to conduct electroacupuncture or to take biopotentials of the BAC of human and animal skin can be used.

Table
The influence of BAC stimulation with a metal rod, soaked in liquid nitrogen, on the reproductive ability of sows, M ± m Experience group Number of animals, goals The average UBT for five BAC, μA The time from weaning piglets before coming to the hunt, days Fertility from the 1st insemination,% At the beginning of the experiment At the end of the experiment 1 (control) 5 57.7 ± 1.30 58.3 ± 0.99 16.2 ± 0.99 60 2 5 59.5 ± 1.41 63.0 ± 1.11 ** 10.6 ± 0.81 ** 80 The differences are statistically significant compared with the control:
* - P <0.05; ** - P <0.01; *** - P <0.001.

Thus, the method of influencing BAC No. 5, 7, 11, 41, 44 sows using a metal rod soaked in liquid nitrogen allows to reduce the time from weaning of piglets to sows on average by 5, 6 days and to increase the percentage of fertility from the first insemination by an average of 20%. The proposed method eliminates the need for highly qualified specialists, reduce the time of arrival of sows in the hunt and increase fertility from the first insemination.

Information sources

1. Guskov A.M., Darius G.S. Biotechnology. - Chisinau: AIR, 1993, - p. 104-117.

2. Stepanov V.I., Mikhailov N.V. Pig production and pork production technology. M .: Agropromizdat, 1991, p. 251-252.

3. Recommendations. The use of acupuncture methods for the prevention and treatment of obstetric and gynecological diseases of cows and bull impotence. M .: TSNTI, 1994, p. 5-7.

4. Patent No. 2202181, A 01 K 67/02, 2000 - prototype.

Claims (1)

A method of stimulating the reproductive function of sows, including the impact on their biologically active centers No. 5, 7, 11, 41, 44, characterized in that the effect on the biologically active centers is carried out with a metal rod, soaked in liquid nitrogen for 10-15 minutes, 2 -3 s daily, for 10 days after weaning.