CN213552641U - Deep vas deferens for breeding replacement gilts - Google Patents

Abstract

The utility model provides a deep vas deferens of reserve sow breeding usefulness, include: the inner pipe is a hard pipe, the outer pipe is movably sleeved on the inner pipe, and the length of the outer pipe is smaller than that of the inner pipe; the outer tube is filled with lubricating grease at one end which is not sleeved with the inner tube. The utility model provides a pair of deep vas deferens of reserve sow mating usefulness can easily pass the sow cervix under the effect of lubricating grease, reachs the uterus body.

Description

Deep vas deferens for breeding replacement gilts

Technical Field

The utility model relates to a breeding industry assisted reproduction technical field, concretely relates to deep insemination pipe of reserve sow breeding usefulness.

Background

The artificial insemination technology of the pig starts from 20 actual 30 years, and China starts from 50 years in the last century, but the technology does not begin to be popularized until 90 years later. At present, the technology becomes one of the main means for pig breeding. The artificial insemination technology is favorable for breeding and popularizing new breeds of pigs, the labor intensity of breeding the sows can be reduced, the time consumed by breeding is saved, diseases caused by natural mating of the boars and the sows are avoided, the growth speed and the lean meat percentage of the pigs are improved, the disease resistance of the pigs is enhanced, the number of piglets of the sows is increased, the survival rate of piglets is improved, the number of breeding heads of the boars is reduced, the feed is saved, the breeding cost is reduced, and the economic benefit is improved.

The deep insemination technology in recent years is relatively mature in application in pig farms, has the advantages of improving the sow mating efficiency, increasing the utilization rate of excellent boars and the like, and is an indispensable key technology in live pig breeding. However, in the actual operation process, the following problems exist:

1. when the sow is bred for the first time, the cervix is narrow and small, the cervix of the replacement sow is provided with a plurality of folds and is closed when the sow is not estrualized, external bacteria are prevented from entering, and the uterine horn is kept isolated from the outside. After estrus, the cervix may open slightly, facilitating the mating. The cervical folds are more, and the uterine cervix becomes hyperemic and hard under slight stimulation, so that the cervical orifice is narrower, and the existing deep vas deferens are difficult to pass through the cervical of the replacement sow.

2. When the sow oestrus, the glands in the mouth of the vulva and the cervix secrete mucus for lubricating and preventing external pathogenic bacteria from entering. However, the cervical folds are ruminal tissues, have no glands and cannot secrete mucus for lubrication, so that the existing deep vas deferens is difficult to pass through the cervix. If the deep vas deferens is forced to advance, the cervix is easily damaged. Serious ulcer, erosion and suppuration appear in uterus once infection, the infection is difficult to cure, and the sow as a material is basically rejected if the uterus is infected by infection lesion, so that the production efficiency is directly influenced.

Disclosure of Invention

In order to solve the problem, the utility model aims at providing a deep vas deferens of reserve sow mating usefulness, it can easily pass the sow cervix, reachs the uterus body.

In order to realize the above-mentioned purpose, the utility model provides a deep vas deferens of reserve sow mating usefulness, include:

the inner pipe is a hard pipe; the inner tube is used for connecting with an external semen bottle;

the outer pipe is movably sleeved outside the inner pipe, and the length of the outer pipe is smaller than that of the inner pipe; the outer tube is filled with lubricating grease at one end which is not sleeved with the inner tube.

Before use, the inner tube does not pass through the lubricating grease in the outer tube; the inner tube and the outer tube are inserted into a vulva of a replacement sow together, and the outer tube is pushed to reach a cervical orifice of the replacement sow; the inner tube is pushed slowly, and the lubricating grease can be pushed out along with the advancing of the inner tube and enters the cervix so as to pre-lubricate the cervix; as the inner tube continues to move forward, the inner tube and the lubricating grease are contacted with each other, and the lubricating grease is attached to the outer wall of the inner tube; the inner tube moves on the cervix to make the lubricating paste adhere to the folds of the cervix, thereby playing a role in lubricating and reducing the pushing resistance.

According to another embodiment of the invention, the inner tube is provided with an encapsulated soft head at one end close to the lubricating paste and a tail plug at the other end; the rubber-coated soft head can play a role in protection, so that the tube body is prevented from damaging the uterus; the tail plug is used for being connected with the semen bottle and can prevent semen from leaking.

According to another embodiment of the present invention, the outer tube is provided with a gourd soft head at one end filled with the lubricating grease; the soft head of the calabash can also be used for marking the entering length of the inner tube entering the cervical orifice.

According to another embodiment of the invention, the length of the lubricating grease is 4-6 cm.

According to another embodiment of the present invention, the outer diameter of the inner tube is 3 to 3.4 mm; too large outer diameter is not easy to enter into uterus, and too small outer diameter can make the inner tube easily fall off.

The inner tube and the outer tube are inserted into the vulva of the replacement sow together to push the gourd soft head of the outer tube to reach the cervical orifice of the replacement sow; the outer tube is fixed at the cervical orifice of the replacement sow, the inner tube is slowly pushed, the lubricating paste can be pushed out along with the forward movement of the inner tube, enters the cervix and pre-lubricates the cervix, and along with the continuous forward movement of the inner tube, the inner tube penetrates through the lubricating paste, and the lubricating paste is attached to the outer wall of the inner tube; the inner tube moves on the cervix, so that the lubricating paste is attached to the folds of the cervix, the lubricating effect is achieved, and the pushing resistance is reduced; when the tail parts of the inner tube and the outer tube are mutually overlapped, the semen bottle is connected with the tail plug, and semen is squeezed into the uterine horn; after the semen is squeezed out, the semen can permeate the whole uterine horn, at the moment, the deep vas deferens can be pulled out, and the whole mating is finished.

Compared with the prior art, the utility model has the advantages of it is following:

1. the inner tube is a hard tube, and when the cervical dilator passes through the cervix, the inner tube cannot be bent or folded due to the fact that the inner tube touches the folds of the cervix, and cannot pass through the cervix smoothly.

2. The utility model adopts the outer tube, the inner tube and the lubricating grease, the lubricating grease is filled in the end of the outer tube which is not sleeved with the inner tube, the inner tube is pushed to extrude the lubricating grease, and the lubricating grease can pre-lubricate the uterine neck; along with the continuous movement of the inner tube, the inner tube passes through the lubricating grease, and the lubricating grease is attached to the outer wall of the inner tube; the inner tube moves on the cervix to make the lubricating grease adhere to the folds of the cervix, thereby playing a role in lubricating, reducing the pushing resistance and enabling the deep vas deferens to pass through the cervix.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic view of the construction of a deep vas deferens for a gilt replacement;

FIG. 2 is a schematic representation of a replacement gilt uterus;

fig. 3 is a schematic view of the inner tube of the deep vas deferens for a replacement gilt mating;

fig. 4 is a schematic view of the structure of the outer tube of the deep vas deferens for gilt replacement.

Detailed Description

The embodiment provides a deep vas deferens for breeding replacement sows, which comprises an inner tube 1 and an outer tube 2, wherein the inner tube 1 is a hard tube and is not easy to prick a fold 42 of a cervix 4 when passing through the cervix 4, so that a cervix mouth 41 is prevented from being contracted and narrowed due to stimulation on the cervix 4, and the whole breeding process is smoother; the outer diameter of the inner tube 1 is 3.4 mm, the inner tube can completely penetrate through the whole cervix 4, reach the uterine body 5 and enter the uterine horn 6, and meanwhile, the inner tube 1 with small tube diameter can not extrude the cervix 4 to damage the cervix 4; the outer tube 2 is a hard tube, which is beneficial to the smooth penetration to the cervical orifice 41; when the outer tube 2 is fixed at the cervical orifice 41, the inner tube 1 sleeved inside the outer tube can be pushed into the uterus by the fixation of the outer tube 2, and the outer tube 2 is a hard tube and can play a better role in borrowing force; the length of the outer pipe 2 is less than that of the inner pipe 1; one end of the outer tube 2 is filled with lubricating paste 3, three gourd soft heads 21 are arranged at the tube orifice, the other end of the outer tube is sleeved with the inner tube 1, the inner tube 1 does not touch the lubricating paste 3, and the thickness of the lubricating paste 3 is 5 cm; the inner tube 1 is equipped with rubber coating soft head 11 in the one end that is close to lubricating grease 3, and the other end is equipped with tail stopper 12, and rubber coating soft head 11 can play the guard action, avoids the body to damage uterus.

The outer tube 2 is filled with lubricating grease 3, and the length of the lubricating grease is 5 cm; when the inner tube 1 passes through the outer tube 2, the lubricating paste 3 is pushed out firstly, enters the cervix 4 and is pre-lubricated, the lubricating paste 3 is contacted with the inner tube 1 along with the continuous forward movement of the inner tube 1, and the lubricating paste 3 is attached to the outer wall of the inner tube 1; the inner tube 1 moves on the cervix 4, so that the lubricating grease is attached to the folds 42 of the cervix to play a role in lubrication, the propelling resistance is reduced, and the inner tube 1 can easily pass through the cervix 4 and reach the uterus 5.

The soft gourd head 21 of the outer tube 2 can well block the cervical orifice 41, so that the semen flows out when the semen is squeezed; the gourd soft head 21 can fix the spermaduct in the cervical orifice 41 to play a role in positioning; meanwhile, the soft gourd head 21 can play a role in protecting and preventing the outer tube 2 from damaging the cervical orifice 41; the soft gourd-head 21 also serves to mark the entry length of the inner tube 1 into the cervical orifice 41, which is approximately 5-6.5 cm.

Before use, the inner tube 1 does not pass through the lubricating grease 3 in the outer tube 2; the inner tube 1 and the outer tube 2 are inserted into the vulva of the replacement sow together, and the gourd soft head 21 of the outer tube 2 is pushed to reach the cervical orifice 41 of the replacement sow; slowly pushing the inner tube 1, pushing the lubricating paste 3 out along with the forward movement of the inner tube 1, entering the cervix 4 for pre-lubrication, and as the inner tube 1 continues to move forward, the inner tube 1 and the lubricating paste 3 are contacted with each other, and the lubricating paste 3 is attached to the outer wall of the inner tube 1; the inner tube 1 moves on the cervix 4, so that the lubricating grease 3 is attached to the folds 42 of the cervix, the lubricating effect is achieved, and the pushing resistance is reduced; when the tail parts of the inner tube 2 and the outer tube 2 are mutually overlapped, the semen bottle is connected with the tail plug 12, and semen is squeezed into the uterine horn 6; after the semen is squeezed out, the semen can permeate the whole uterine horn 6, at the moment, the deep vas deferens can be pulled out, and the whole mating is finished.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the scope of the invention. Any person skilled in the art can make some modifications without departing from the scope of the invention, i.e. all equivalent modifications made according to the invention are intended to be covered by the scope of the invention.

Claims (5)

1. A deep vas deferens for gilt replacement insemination, comprising:

the inner pipe is a hard pipe; the inner tube is used for being connected with an external semen bottle;

the outer pipe is movably sleeved outside the inner pipe, and the length of the outer pipe is smaller than that of the inner pipe; and lubricating paste is filled in one end of the outer pipe, which is not sleeved with the inner pipe.

2. The gilt mating deep vas deferens of claim 1 wherein said inner tube has a rubber-coated soft tip at one end near said lubricating paste and a tail plug at the other end.

3. The gilt mating deep vas deferens of claim 1, wherein said outer tube has a gourd soft head at one end filled with said lubricating grease.

4. The gilt mating deep vas deferens of claim 1, wherein said lubricating paste is 4-6 cm in length.

5. The gilt mating deep vas deferens of claim 1, wherein said inner tube has an outer diameter of 3-3.4 mm.

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