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Artificial Insemination (AI) for Cattle
When to breed? - sexed semen on natural heat.
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<blockquote data-quote="Till-Hill" data-source="post: 1748226" data-attributes="member: 16547"><p>Ok, breeding cows is not rocket science if I'm able to be good at it. My wife says I'm not good at anything. Sexed semen yes is slightly damaged in the sorting process. Breed the cow when she is in heat, when time allows.</p><p></p><p>The last 12 months cows I have bred.</p><p>75% sexed female semen on these breeding's, 25% conventional beef on the dairy. I could dig up some numbers on beef herd too but this is fast.</p><p></p><p>0-2 hours breeding past first heat, 60% pregnant on 25 breedings</p><p>2-12 hours 49% on 71 breedings</p><p>over 12 hours 38% on 125 breeding</p><p></p><p>Do not screw around and wait to breed cows. Breed them when the bull would!</p><p></p><p>So more data for you, breeding preg rate on visual vs my pedometer system.</p><p></p><p>Breeding very early off seeing a heat before my system catches it 56% pregnant on 27 breedings, 44% on system on 265 breedings, 38% on TAI on 13 breedings, 33% off ultrasound on 3 breedings.</p></blockquote><p></p>
[QUOTE="Till-Hill, post: 1748226, member: 16547"] Ok, breeding cows is not rocket science if I'm able to be good at it. My wife says I'm not good at anything. Sexed semen yes is slightly damaged in the sorting process. Breed the cow when she is in heat, when time allows. The last 12 months cows I have bred. 75% sexed female semen on these breeding's, 25% conventional beef on the dairy. I could dig up some numbers on beef herd too but this is fast. 0-2 hours breeding past first heat, 60% pregnant on 25 breedings 2-12 hours 49% on 71 breedings over 12 hours 38% on 125 breeding Do not screw around and wait to breed cows. Breed them when the bull would! So more data for you, breeding preg rate on visual vs my pedometer system. Breeding very early off seeing a heat before my system catches it 56% pregnant on 27 breedings, 44% on system on 265 breedings, 38% on TAI on 13 breedings, 33% off ultrasound on 3 breedings. [/QUOTE]
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When to breed? - sexed semen on natural heat.
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