RU215304U1 - ARTIFICIAL VAGINA FOR OBTAINING SEMEN FROM MALE RABBITS - Google Patents

Abstract

The utility model relates to rabbit breeding, in particular to a device for collecting sperm from rabbits in the field and in the laboratory. An artificial vagina consists of two tubes of different diameters, a tube of a smaller diameter is inserted into a tube of a larger diameter, an elastic liner is inserted into the cavity, a seed receptacle with a scale printed on it for measuring the volume of sperm is inserted into the elastic liner from the side of the narrow end hole of the opaque body. Before taking sperm from a male, the artificial vagina is heated to 50-60 ° C (in a water bath). The utility model makes it possible to preserve the biological usefulness of sperm during its production both in the field and in laboratory conditions. 1 fig., 1 tab.

Description

The utility model relates to rabbit breeding, in particular to a device for collecting sperm from rabbits in the field and in the laboratory.

The device is characterized by the fact that it consists of two tubes of different diameters, one is inserted into the other and fits snugly against it, and the insert that is inserted inside is fixed at the two ends of the tube, thereby imitating the genitals of a female (vagina), a sterile test tube (semen receptacle) for collecting semen, made of neutral non-toxic material for sperm. The tubes are made of silicone rubber and are 13 cm long. After assembly, the vagina is heated to a temperature of 50-60°C.

At present, due to the intensive development of rabbit breeding and the construction of large rabbit breeding complexes, the introduction of the method of artificial insemination of rabbits and the high-quality production of male ejaculate is a priority, and its technique requires further improvement.

Artificial insemination began to be practiced as early as the 30s of the 19th century. The first steps in this direction were made by such scientists as V.K. Milovanov (1936), who developed an artificial vagina in our country.

Currently, sperm from male rabbits is obtained for an artificial vagina only of an imported sample, which is inconvenient to assemble, requires filling with water, and is high in cost, moreover, the French manufacturer (import on order) is often out of stock. What causes disadvantages for the artificial insemination worker is that when parts of the imported vagina are lost or worn out, they are often not available and the parts need to be ordered, which will arrive in a few weeks or months, which causes economic damage to the farm, or domestic, which consists of glass, which is inconvenient both in the field and in laboratory conditions (it breaks with inaccurate movement), since the convex case is inconvenient to hold in the hand and slip due to the material.

Consider the similarities and differences between the artificial vagina of our own production and the prototype (link: VENERA VET Int. - tools for artificial insemination, semen analyzer, animal embryo transplantation (venera-vet.ru)). In terms of purpose, they are similar for taking sperm from male rabbits. The body of the vagina of its own production consists of two separate parts, tightly adjacent to each other, and is made of rubber. The body of the prototype consists of one convex part with two walls, has a hole for pouring water (which is not always convenient in the field) and a plug (which is easily lost) and is made of plastic. The body of the artificial vagina is collapsible, the body of the prototype is not collapsible. The body of the prototype needs to be filled with water before use, the vagina of our own production does not require. Also, the design of both vaginas includes a seed receptacle and an elastic tube of similar designs. Both vaginas should be warmed to a working temperature of 50-70°C before use. The body of an artificial vagina of one's own production can be made at home, while the body of the prototype is made in production. As a result, the artificial vagina is much cheaper and easier to manufacture than the prototype. Does not require additional manipulations (filling with water).

The claimed utility model makes it possible to preserve the biological usefulness of sperm during its receipt, both in the field and in the laboratory.

The claimed device (Fig. 1) consists of two tubes of different diameters, a tube of smaller diameter 3 is inserted into a tube of larger diameter 2, an elastic insert 1 is inserted into the cavity, making a vagina in a wide diameter (due to the tension of the ribs and concave sections of the elastic tube, imitation occurs in an artificial vagina of the natural state of the folds of the vagina and the cervical canal of the uterus of an excited rabbit). After that, a seed receptacle 4 with a scale for measuring the volume of sperm is inserted into the tube 3 from the side of the narrow end hole of the opaque body. To increase the effect of imitating the natural state of an excited rabbit, before taking sperm from a male, the artificial vagina is heated to 50-60 ° C in a water bath, which is aimed at increasing the male's excitation and the fastest return of sperm to them. Next, lubricate the inner surface of the elastic insert 1 with sterile vaseline.

Principle of operation

Sperm collection technique.

The artificial insemination technician transfers the female to the male's cage (calm animals are used for this). Holding it with his left hand in the area of the shoulder blades, he takes a previously prepared artificial vagina sample in his right hand. At the time of mating, the vagina was substituted between the hind legs of the female with the hole up under the erect penis. The ejaculate enters the insert and flows down it into the test tube, because the vagina was preheated to a predetermined temperature, this prevents heat shock. After taking the sperm, the sperm receptacle was transferred to the laboratory for testing the quality of the sperm.

Tests of an artificial vagina of our own production and a prototype were carried out in the rabbitry "I.P. KFH Fokin E.A.

The test results of the declared artificial in comparison with its prototype in the experimental rabbitry are shown in table 1.

Table 1. Test results of the proposed vagina model and its prototype. Design
artificial
vagina Quality sperm Number
ejaculates Ejaculate volume, ml Mobility,
points Concentration, mln/ml ejaculation time,
sec By useful
models 37 1.5 ± 0.21 9 830± 35 2.0±0.51 Prototype 36 1.2±0.25 eight 560 ± 25 4.0±0.26

The data shown in table 1 indicate that the use of the claimed artificial vagina provided an increase in ejaculate volume, mobility, concentration and time for ejaculation compared with the prototype.

several weeks or months, which causes economic damage to the economy, or domestic, which consists of glass, which is inconvenient both in the field and in laboratory conditions (it breaks with inaccurate movement), since the convex case is inconvenient to hold in your hand and slip due to material.

Consider the similarities and differences between the artificial vagina of our own production and the prototype (link: VENERA VET Int. - tools for artificial insemination, semen analyzer, animal embryo transplantation (venera-vet.ru)). In terms of purpose, they are similar for taking sperm from male rabbits. The body of the vagina of its own production consists of two separate parts, tightly adjacent to each other, and is made of rubber. The body of the prototype consists of one convex part with two walls, has a hole for pouring water (which is not always convenient in the field) and a plug (which is easily lost) and is made of plastic. The body of the artificial vagina is collapsible, the body of the prototype is non-collapsible. The body of the prototype needs to be filled with water before use, the vagina of our own production does not require. Also, the design of both vaginas includes a seed receptacle and an elastic tube of similar designs. Both vaginas should be warmed to a working temperature of 50-70°C before use. The body of an artificial vagina of one's own production can be made at home, while the body of the prototype is made in production. As a result, the artificial vagina is much cheaper and easier to manufacture than the prototype. Does not require additional manipulations (filling with water).

The claimed utility model makes it possible to preserve the biological usefulness of sperm during its receipt, both in the field and in the laboratory.

The claimed device (Fig. 1) consists of two tubes of different diameters, a tube of smaller diameter 3 is inserted into a tube of larger diameter 2, an elastic insert 1 is inserted into the cavity, performing a vagina in a wide diameter (due to the tension of the ribs and concave sections.

Claims (1)

An artificial vagina for obtaining sperm from male rabbits, characterized in that it has an opaque body consisting of two tubes of different diameters, while the tube of a smaller diameter is inserted into a tube of a larger diameter, and an elastic liner is inserted into the formed cavity, which makes the vagina in a wide diameter for due to the tension of the ribs and concave sections, while the elastic liner is made with the possibility of installing, from the side of the narrow end hole of the opaque body, the seed receptacle with a scale applied to it for measuring the volume of sperm, and the artificial vagina is heated to 50-60 ° C before taking the sperm from the male in a water bath.

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