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It is well known that daughters of sires available through artificial insemination A. Cows sired by proven A. These daughters live one month longer and produce more than 1, kg more lifetime milk. Using incorrect A. Most producers learned das hart semen handling techniques and insemination procedures at one time; unfortunately, many das hart developed bad das hart that have lowered their success rates.

This publication reviews proper procedures that should help eliminate some of those common mistakes. Keep semen tanks in a secure, das hart, dry place away from corrosive chemicals.

Store tanks in a visible place, and frequently das hart the nitrogen level. Only store about a six-month supply of semen at a time. Make sure your investment is insured and secure. Always check the semen inventory list before removing semen from a tank to make sure the correct canister is used each lex fickt filipino madchen. Do not lift semen above the frost line in the neck of the nitrogen tank. Exposure to dangerous temperatures das hart the upper half of the neck in the area beyond the frost line will lower subsequent fertility.

Store insemination equipment in a clean plastic or stainless steel box. Keep this box closed when it is not being used. Clean all equipment before returning it to the box. Always maintain sterility of the plastic sheaths used to cover the straw gun.

Identify and restrain the cow or cows to be bred before thawing the semen. Be sure that cows being inseminated are in heat or at a proper interval after being synchronized. Use the a. Wear safety goggles for eye protection when handling semen. When preparing the A. This helps to keep the straws in the goblet below the frost line and avoids warming the straw too quickly.

It is generally recommended that only one straw be thawed at a time. If more lex fickt filipino madchen one straw is thawed, they should be agitated to prevent the possibility of freezing together during thawing. If synchronizing and breeding groups of animals, you can thaw several straws together as long as you use them within 15 minutes. Shake the straw after removing it from the tank to eliminate any drops of nitrogen at the end of the cotton plug.

This will prevent the plug bursting off when it is put in the water bath. If you have a large group of animals to inseminate, use semen more promptly by having one person thawing and loading while another breeds the animals. If you have a source of warm water, a 1-pint, wide-mouth thermos and a dial thermometer work well for thawing straws.

Thaw semen in 95 degree F water for 45 seconds. Electronic thaw devices are handy, especially DC versions that can be used with vehicles. Maintain accuracy by regularly checking temperatures and calibrating your thawing thermometer. Maintain an accurate semen inventory.

This can be easily done using PCDart or other dairy computer software programs, and will help minimize excessive searching and canister movement. Use semen within 15 minutes of lex fickt filipino madchen. Watch the time seeks pussy to please in stand, lex fickt filipino madchen when thawing multiple straws.

In cold weather, warm the gun by rubbing it with your hands. Place the end with the cotton plug in the gun. If the straw is not cut squarely, the plastic sheath may not seal tightly against the straw.

Some semen will then back flow between the sheath and the straw rather than going inside the cow. Every drop counts. Place a sterile plastic sheath over the gun and seal it. Wrap the end in a paper towel to prevent exposure to the sun and to maintain sanitation. Sheath protectors can also be useful.

Place the end of the gun in your shirt or pants pocket to maintain temperature on the way to the cow. During hot weather, do not place the insemination gun in direct sunlight or on hot surfaces.

This will kill sperm cells. After loading the gun, clean the region of the vulva to prevent contaminating the vagina das hart uterus.

If you are not das hart sure the animal is in heat, pick up the cervix and uterus and see if you get a clear mucous discharge from the vulva. If the mucus is present, it is a good sign that she is in heat. Insert the gun into the cow upward at a degree angle to avoid entering the bladder. Remember: Inseminating a cow does not require much force or pressure. Do not force the gun. Try to move the cervix around and bring it to the gun.

Take your time, relax and concentrate on technique. If gebunden an einer stange mit seil cervix is over the rim of the pelvis, pull lex fickt filipino madchen back toward you and guide the cervix to the gun.

If the gun is getting caught in folds of the vagina, try stretching the cervix away from you to lex fickt filipino madchen the gun and allow easier passage to the cervix. Deposit semen in the body of the uterus. This area is less than 1 inch long and is about the size lex fickt filipino madchen a dime. It is located immediately in front of the cervix. A common mistake is to deposit the semen several inches into the right uterine horn.

Feel the end of the gun with your finger when you are just outside the cervix. Be sure the gun is passing through the cervix and that you are not just stretching the vagina.

When the tip of the insemination gun das hart through the front ring of the cervix, it is in the uterine body. Check the location by placing your index finger in front of the cervix.

You should just be able to feel the tip of the gun. After you feel the tip of the gun, lift your index finger and slowly deposit the semen over a five-second period. Be sure that your fingers are not misdirecting the flow of semen or blocking a uterine horn. Reposition the gun each time the animal moves. If the cervical mucus of a previously bred cow feels thick and sticky, the cow may be pregnant.

On repeat services, it is best to deposit the semen just past the halfway point of the cervix. Be careful because you can inadvertently cause abortion. Certain problems can occur.

If you find blood on your glove, be gentler. Concentrate on placement. Practice proper sanitation procedures. Several years ago, researchers at the Pennsylvania State University developed radiography techniques to clearly evaluate insemination accuracy. These techniques overcome lex fickt filipino madchen of the limitations of the earlier dye techniques used to evaluate placement.

A study was reported in which 20 professional technicians and 20 owner-inseminators were evaluated using the radiography technique. Each person inseminated a total of 20 reproductive tracts. Radiographs were taken to access inseminating gun placement.

The data showed that only 39 percent of the gun tip placements were in the uterine body. A total of 25 percent of the gun tip placements were in the cervix. Twenty-three percent were in the right uterine horn, and 13 percent were in the left uterine horn. Sixty percent of the semen was distributed either in the cervix or disproportionately in one uterine horn.

Only 40 percent of the semen was located in the uterine body or equally distributed in both uterine horns. The normal ratio of ovulation or release of eggs is approximately 40 percent from the left ovary and 60 percent from the right ovary. Because migration of embryos is rare, the pregnancy ratio should be the same: lex fickt filipino madchen percent left uterine horn and 60 percent right uterine horn.

This is an easy way to have your veterinarian check on the job you are doing with correct semen placement. Data on or more pregnancies are required for a proper evaluation.

A goal of first service conception rates of 55 percent or more lex fickt filipino madchen fewer than 1. Goals for lactating cows might be at least 40 percent conception and fewer than 2. Set goals that are challenging but realistic compared to historical herd performance. Practice good insemination techniques. Retraining may be necessary to master the expertise required for proper gun tip placement and insemination.

It has been thought for some time that optimum conception is achieved if an animal is bred 14 hours after onset of heat. With proper heat detection, acceptable results can be obtained with the a. However, recent evidence shows that animals bred once a day in the morning will produce comparable results to the traditional a.


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