SEMEN CARE: PROPER SEMEN HANDLING = MORE PGS
Don’t let semen handling be a “forgotten link” in your herd. Below are 12 steps herd owners and managers, herdsmen, inseminators and professional AI technicians can put in to practice to help get more cows pregnant.
Locate all items necessary to thaw semen and perform AI, including tweezers, water bath and thermometer, AI gun, sheaths, scissors, paper towels, plastic sleeves, and lubricant. Work close to the liquid nitrogen tank, preferably in a clean and dry location.
Check the water bath temperature using a thermometer. Most semen packaged in .5-mL or .25-mL straws should be thawed in water 95˚F/35˚C.
Keep an accurate semen inventory including storage location.
Work at or below the frost line in the neck of the tank to minimize the possibility of premature thawing of semen straws. After locating and grasping the desired cane, remove the straw with tweezers. Quickly transfer the straw to the water bath, while gently lowering the cane back into the canister, and the canister back into storage position. When thawing more than 1 straw simultaneously, do not allow straws to touch in the water bath.
Semen should be thawed for a minimum of 45 seconds. Use a watch or clock to monitor the time.
Remove the straw from the water bath and dry thoroughly with a paper towel. Water will kill sperm. Cut the crimped end of the straw at a right angle, keeping the straw covered by paper towels during the process.
As you load the straw into the gun, very quickly check to make sure you have selected the right bull.
Pull the sheath over the gun and secure it with an o-ring or by twisting the sheath on the raised spiral. Be certain the straw is seated ... Læs mere...