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Scrotal size
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<blockquote data-quote="Willow Springs" data-source="post: 688484" data-attributes="member: 9002"><p>Research has shown that there is very little fertility improvement after a bull reaches 38 cm circumference. As pointed out earlier extremely large testicles (or porrly supported) can create fertility problems through injury, thermoregulation, etc. Also young bulls with very large testicles sometimes have poorer semen quality due to testicular immaturity. But you also have to balance that with getting early maturing, fertile females. I like to have 36-38 cm at a year of age. However if the bull is only for terminal cross I don't see a problem with 38 cm as an older bull. In the end libido and how a bull breeds will have as much of an effect on pregnancy rates.</p></blockquote><p></p>
[QUOTE="Willow Springs, post: 688484, member: 9002"] Research has shown that there is very little fertility improvement after a bull reaches 38 cm circumference. As pointed out earlier extremely large testicles (or porrly supported) can create fertility problems through injury, thermoregulation, etc. Also young bulls with very large testicles sometimes have poorer semen quality due to testicular immaturity. But you also have to balance that with getting early maturing, fertile females. I like to have 36-38 cm at a year of age. However if the bull is only for terminal cross I don't see a problem with 38 cm as an older bull. In the end libido and how a bull breeds will have as much of an effect on pregnancy rates. [/QUOTE]
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