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Artificial Insemination - Coggle Diagram
Artificial Insemination
technique by which semen is introduced artificially into the body of the uterus at the time of heat in an attempt to cause pregnancy.
advantages
• It minimizes the risk of spreading sexually transmitted diseases and genetic defects (e.g., mule
It has genetic cumulative beneficial effects over the years in terms of genetic amelioration of the breed.
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It provides the opportunity to choose sires that are proven to transmit desirable traits to the next generation
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Electroejaculation
with impaired bulls that are unable to mount, for bulls that are not accustomed to being handled, low sexual activity and aged male.
The technique
The rectum emptied from feces, longitudinal massage is applied over the ampulla and urethralis muscle for 1-2 minutes.
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After several stimulations, clear pre-seminal fluid begins to flow from the protruded penis.
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As soon as the cloudy sperm rich fraction begins to flow the penis, a collection cone with the test tube placed over the penis and sample is collected
Electrical stimulation should be beginning slowly until the bull shows a minimal response, then gradual increase in the intensity, the stimuli should last 1-2 seconds
Advantages
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Can be used with a wide range of bulls (untrained, unable to mount, decreased libido)
Disadvantages
The nerves of hind limbs also stimulated by electrical current, this result in stiffing of the legs and the animal may go down.
Collected semen quality is large in volume but low in concentration, sometimes contaminated with urine.
Increasing the voltage too rapidly can result in ejaculation without an erection, so the semen will be contaminated with preputial dirt
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