(1) Drugs: Commonly used disinfection products are harmful to sperm, such as alcohol, coal phenol soap (Luxor), benzalkonium, etc. The contact or odor of these drugs directly affects the vitality of sperm, so the breeding equipment and other equipment are not Should be placed in the veterinary room. The breeding room and the veterinary room should not be in the same room.
(2) Illumination (including visible light, ultraviolet rays, and X-rays): Harmful to sperm, should be avoided. When the pH of semen decreases, the metabolism and activity of sperm decline. When the PH value increases, the sperm activity increases, the energy consumption increases, and the survival time becomes shorter. The appropriate pH of the bovine sperm is 6.9-7.0, and the PH value exceeds a certain range. Sperm will shock or die. The high osmotic pressure will easily cause the sperm's own water to escape and cause the sperm to shrink. If the osmotic pressure is low, moisture will infiltrate into the sperm and cause the sperm to swell. The sperm can slowly balance the osmotic pressure inside and outside the sperm through the cell membrane, but this change There is a certain limit.
(3) temperature: too high or too low temperature will affect the survival of sperm, because high temperatures (above 40 °C) to accelerate sperm metabolism and shorten survival, low temperature (below 0 °C) due to the impact of cold stimulation recovery, the preservation temperature of semen after thawing 5 °C -35 °C is appropriate.
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