JP2000041529A - Prevention of mastitis of milk cow, agent for sealing papilla, and prescription container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for preventing the mastitis of a milk cow, capable of preventing the invasion of mastitis-causing bacteria from papillary foramenina into papillal in the early time of a milk cow dry period and in the papillary foramenina-opened period close to the birth of the milk cow. SOLUTION: This method for preventing the mastitis of a milk cow comprises dipping the papilla of the milk cow in a papilla-sealing agent to form a thin film on the papilla and holding the papilla in the papillary foramenina-sealed state for about two to nine days in the dry period of the milk cow and for about two to nine days before the birth of the milk cow, because the milk cow is liable to be infected with mastitis-causing bacteria in the dry period. The infection of the mastitis-causing bacteria can thereby physically be stopped. The formation of the thin film of the papilla-sealing agent on the papilla in the dry period of the milk cow and in the papillary foramenina-opened period close to the birth stops the invasion of the mastitis-causing bacteria from the papillary foramenina into the papilla.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for preventing mastitis by sealing the nipple opening of a dairy cow at the beginning of the dry period of a dairy cow and immediately before parturition, a nipple sealing agent and a prescription container used therefor. It is.

[0002]

BACKGROUND OF THE INVENTION Dairy cows have a lactation period and a dry period, which is important for calving and subsequent lactation periods, but often results in mastitis during the dry period. This is because in the dry period, immunity is reduced due to stress such as hormonal balance disruption in preparation for parturition, and even if milking is stopped for dry milk, the nipple mouth does not close immediately, but it takes several days. This is because the nipple mouth is closed for about one week. Also, when the cow is several days to one week before parturition, the nipple mouth starts to open in preparation for feeding the calf after parturition.

[0003] In order to prevent mastitis infection during the early period of the dry period (until the dry period is completed) and near the time of delivery, conventionally, injection of antibiotic preparations for intramammary injection or A method of killing mastitis-causing bacteria by nipple immersion with a nipple fungicide has been used.

[0004]

As described above, dairy cows have a period in which the teat opening is open during the initial period until the end of the dry period and before parturition. Mustitis-causing bacteria enter the nipple through the open nipple opening and cause mastitis due to being in a place contaminated with excrement such as a sports ground. Also, in order to prevent such problems, it is common to administer an intramammary antibiotic for mastitis to dairy cows, even when such an intramammary antibiotic is used,
If the nipple ostium is open, the causative bacteria distributed around the dairy cow can newly enter the nipple ostium even after treatment with the intramammary antibiotic preparation for injection. In addition, even if an antibiotic preparation for intramammary injection is used, bacteria resistant to the antibiotic used appear, which is insufficient to completely prevent the occurrence of mastitis. In fact, even with antibiotics for intramammary infusion, the first two weeks of the dry period and 7 days before delivery to
It is known that there are many new mastitis infections during day 0.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and is intended to prevent dairy cows from developing mastitis at the beginning of the dry period and during the period when the teat opening is open before parturition. An object of the present invention is to provide a method for preventing mastitis in dairy cows, a nipple sealing agent, and a prescription container.

According to the present invention, the invasion of a causative bacterium that is about to enter the nipple mouth is physically prevented by a thin film of a nipple sealant formed in the nipple mouth.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a method of producing a dairy cow in the dry period of about 2 to 9 days at the beginning of a dry period susceptible to mastitis, and about 2 to 9 days before parturition. For about a day, the nipple is immersed in a nipple sealant, and the nipple is kept in a state of forming a thin film that closes the nipple opening, thereby physically preventing the infection of mastitis-causing bacteria. To prevent mastitis in dairy cows.

[0008] The present invention provides that during the dry period of a dairy cow, about 2 to 3 days at the beginning of the dry period and about 6 to 9 days before calving,
The present invention relates to a method for preventing mastitis in dairy cows, wherein the nipple is immersed in a nipple sealant to form a thin film on the nipple to close the nipple opening.

[0009] The present invention also relates to a nipple sealing agent characterized in that 5 to 15% of a rubber-based material is dissolved in a solvent.

At this time, the rubber material may be urethane rubber or latex rubber, and the solvent may be tetrahydrofuran.

Furthermore, the present invention relates to a disposable prescription container made of paper, having a diameter larger than the teat of a dairy cow and having a length similar to that of the teat and capable of containing a teat sealant.

In the present invention, during the dry period of dairy cows, the rubber is used for about 2 to 9 days at the beginning of the dry period susceptible to mastitis and for about 2 to 9 days before parturition. The nipple is immersed in a nipple sealing agent obtained by dissolving a system material in a solvent, so that the nipple is kept in a state where a thin film for closing the nipple opening is formed. By blocking the nipple opening by the thin film, it is possible to physically prevent the invasion of the mastitis-causing bacterium from the nipple opening through the early stage of the dry period and before delivery. Thereby, new infection of mastitis can be effectively prevented.

[0013] By storing a required amount of nipple sealant in a disposable prescription container made of paper and immersing it in the nipple, the operation of forming a thin film of the nipple sealant on the nipple can be easily performed. By doing so, the problem of mastitis infection can be further reduced.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

The nipple sealant used in the present invention is obtained by dissolving 5 to 15% of a rubber material in a solvent. For example, when the rubber material is urethane rubber and the solvent is tetrahydrofuran, Urethane rubber10.
A ratio of about 80% of tetrahydrofuran to 7% is preferable.

Further, when the rubber material is latex rubber and the solvent is tetrahydrofuran,
A ratio of about 80% tetrahydrofuran to 10.7% latex rubber is preferred.

As the rubber-based material, the urethane rubber,
In addition to latex rubber, butadiene resin, polyvinyl alcohol, liquid butyl rubber, liquid rubber, natural rubber, butyl rubber, nitrile rubber, chloroprene rubber, vinyl acetate rubber, and the like can be used.

As the solvent, besides tetrahydrofuran, a substitute for chlorofluorocarbons such as acetonitrile, trichloroethane, trichloroethylene and methylene chloride, and an aromatic compound such as toluene and xylene can be used.

As shown by A in FIG. 1, the disposable prescription container made of paper is a thinly crushed paper container in a normal state (when not in use), and when opened, as shown in FIG. Has a diameter D larger than the teat of a dairy cow, for example, about 4 cm to 6 cm, and has a length L about the same as that of the teat, for example, about 5 cm to 7 cm. A mark C for accommodating B is provided.

Further, as shown by E in FIG.
The prescription container E may have a diameter D of about 4 to 6 cm and a length of about 5 to 7 cm, and may contain the teat sealing agent B. It has a mark C.

As described above, the nipple sealant B is inserted up to the position of the mark C of the prescription container A or E, and the prescription container A is moved upward from below so as to fit the nipple of a dairy cow (not shown). Substantially the entire teat is immersed in teat sealant B. According to the prescription container A or E, the nipple sealing agent B can be effectively adhered to the nipple, and waste of the nipple sealing agent B can be reduced.

The nipple sealing agent B attached to the nipple by the above process becomes rich in a few minutes and forms a thin film which is hard to tear, and this thin film is held for about 3 to 10 days after sealing.

Further, the above-mentioned thin film gradually peels off and falls off naturally after about 3 to 10 days have passed.

Hereinafter, tests for confirming the effectiveness of the present invention and preferred embodiments will be described.

Test Method 1 A solution (sample I) of 10.7% urethane rubber and 80% tetrahydrofuran was prepared as a nipple sealing agent, and an animal test was performed using this solution.

Test Method 2 A solution (sample II) of 10.7% latex rubber and 80% tetrahydrofuran was prepared as a nipple sealing agent, and an animal test was performed using this solution.

Animal test results of sample I and sample II (1) Purpose of test A prescription container containing nipple stains wiped off with a towel and the sealant B of sample I and sample II filled up to the position of mark C as shown in FIG. Hold A by hand, and almost the entire nipple is prescription container A
The prescription container A is fitted to the nipple so that it fits within the nipple, and the nipple is immersed in the nipple sealing agent B for several seconds. Next, the prescription container A was removed from the nipple, and the situation where a thin film was formed by the nipple sealing agent B was observed.

(2) Test Results The teat sealant attached to the teat is very flexible in a few minutes,
A thin film that was difficult to tear came to be formed, and this thin film was held for about 3 to 10 days after sealing. After the thin film was held for about 3 to 10 days, it gradually peeled off and dropped off naturally.

Therefore, using the teat sealing agent of the present invention,
If a thin film is formed on the nipple between 2 to 9 days in the early stage of the dry period and about 2 to 9 days before parturition, the nipple during the dry period is opened. By covering the nipple with a thin film, it is possible to prevent mastitis-causing bacteria from entering the nipple from the nipple ostium and to effectively prevent mastitis infection in dairy cows while the nipple ostium is open be able to.

Hereinafter, the present invention will be described in more detail by way of examples, but it is needless to say that the present invention is not limited to these examples.

Example 1 A solution of 10.7% urethane rubber and 80% tetrahydrofuran was obtained as a nipple sealing agent.

The nipple sealant was placed in a disposable prescription container made of paper up to the position of the mark, and the nipple was sealed by dipping the nipple. The nipple sealant attached to the nipple forms a thin film that is highly flexible and hard to tear in a few minutes, and this thin film is removed after sealing.
Retained for days. Also, the thin film spontaneously peeled off on the ninth day. By forming a thin film on the nipple with the sealing agent, mastitis caused by environmental streptococcus, which is a mastitis-causing bacterium, could be reduced by about 50%.

Example 2 A solution of 10.7% latex rubber and 80% tetrahydrofuran was obtained as a nipple sealing agent.

The nipple sealant was placed in a disposable prescription container made of paper up to the position of the mark, and sealed by immersing the nipple. The teat sealant attached to the teat forms a thin film that is highly flexible and hard to tear in a few minutes, and this thin film is formed after sealing.
Retained for days. Also, the thin film spontaneously peeled off on the seventh day. By forming a thin film on the nipple with the sealing agent, mastitis caused by environmental streptococcus, which is a mastitis-causing bacterium, could be reduced by about 32%.

Example 3 A solution of urethane rubber 10.7% and acetonitrile 80% was obtained as a nipple sealing agent.

The nipple sealing agent was placed in a paper disposable prescription container up to the position of the mark, and the nipple was sealed by dipping. The teat sealant attached to the teat forms a thin film that is highly flexible and hard to tear in a few minutes, and this thin film is formed after sealing.
Retained for days. Also, the thin film spontaneously peeled off on the seventh day. By forming a thin film on the nipple with the sealant, the tendency of suppressing mastitis was confirmed.

Example 4 A solution of 12% vinyl acetate rubber and 80% xylene was obtained as a nipple sealing agent.

This nipple sealing agent was placed in a disposable prescription container made of paper up to the mark, and the nipple was sealed by dipping. The nipple sealant attached to the nipple forms a thin film that is highly flexible and hard to tear in a few minutes, and this thin film is 5 minutes after sealing.
Retained for days. Also, the film spontaneously peeled off on the sixth day. By forming a thin film on the nipple with the sealant, the tendency of suppressing mastitis was confirmed.

Example 5 A solution of 8% polyvinyl alcohol and 85% tetrahydrofuran was obtained as a nipple sealing agent.

This nipple sealing agent was placed in a disposable prescription container made of paper up to the position of a mark, and the nipple was sealed by immersion. The teat sealant attached to the teat forms a thin film that is highly flexible and hard to tear in a few minutes, and this thin film is formed after sealing.
Retained for days. Also, the thin film spontaneously peeled off on the seventh day. By forming a thin film on the nipple with the sealant, the tendency of suppressing mastitis was confirmed.

Example 6 A solution of 10% liquid butyl rubber and 80% acetonitrile was obtained as a nipple sealing agent.

The nipple sealing agent was put into a paper disposable prescription container up to the mark, and the nipple was sealed by immersion. The teat sealant adhered to the teat forms a thin film that is highly flexible and hard to tear in a few minutes, and this thin film is sealed after sealing.
Retained for days. Also, the thin film spontaneously peeled off on the eighth day. By forming a thin film on the nipple with the sealant, the tendency of suppressing mastitis was confirmed.

Example 7 A solution containing 9% of butyl rubber and 70% of trichloroethylene was obtained as a nipple sealing agent.

This teat sealing agent was placed in a disposable prescription container made of paper up to the position of a mark, and the teat was sealed by dipping the teat. The nipple sealant attached to the nipple forms a thin film that is highly flexible and hard to tear in a few minutes, and this thin film is removed after sealing.
Retained for days. Also, the thin film spontaneously peeled off on the ninth day. By forming a thin film on the nipple with the sealant, the tendency of suppressing mastitis was confirmed.

Example 8 As a nipple sealing agent, butadiene resin 9%, toluene 8
A 0% solution was obtained.

The nipple sealing agent was placed in a disposable prescription container made of paper up to the mark, and the nipple was sealed by dipping. The teat sealant attached to the teat forms a thin film that is highly flexible and hard to tear in a few minutes, and this thin film is formed after sealing.
Retained for days. Also, the thin film spontaneously peeled off on the seventh day. By forming a thin film on the nipple with the sealant, the tendency of suppressing mastitis was confirmed.

[0047]

According to the method for preventing mastitis in dairy cows, the teat sealant and the prescription container of the present invention, a thin film can be formed on the teat at the beginning of the dry period and before parturition, so that the mouth of the teat can be closed. It has the excellent effect of preventing the mastitis-causing bacteria from invading into the nipple from the nipple mouth and effectively preventing new infection of mastitis in dairy cows while the nipple mouth is open. obtain.

[Brief description of the drawings]

FIG. 1 is a perspective view of a disposable prescription container when not in use.

FIG. 2 is a perspective view showing a disposable prescription container in use.

FIG. 3 is a side view showing another example of the disposable prescription container.

[Explanation of symbols]

 A prescription container B teat sealant

Claims (7)

[Claims] In the dry period of a dairy cow, the nipple is nipple for about 2 to 9 days at the beginning of the dry period susceptible to mastitis and for about 2 to 9 days before parturition. A method for preventing mastitis in dairy cows, characterized by physically preventing infection with mastitis-causing bacteria by immersing the nipple in a sealing agent to form a thin film that closes the nipple opening. 2. In the dry period of a dairy cow, the nipple is immersed in a nipple sealant and the nipple mouth is inserted into the nipple about 2 to 3 days at the beginning of the dry period and about 6 to 9 days before parturition. The method for preventing mastitis in dairy cows according to claim 1, wherein a thin film to be closed is formed. 3. A nipple sealing agent characterized in that 5 to 15% of a rubber material is dissolved in a solvent. 4. The teat sealant according to claim 3, wherein the rubber material is urethane rubber. 5. The nipple sealant according to claim 3, wherein the rubber material is a latex rubber. 6. The nipple sealing composition according to claim 3, wherein the solvent is tetrahydrofuran. 7. A dairy cow having a diameter larger than the teat and having a length similar to that of the teat.
A disposable prescription container made of paper, which can contain the teat sealant described in the above.