What should your AI conception rate be?
Published: August 22, 2016
Summary
During the past 50 years that AI has been practiced in the U.S. the fertility of virgin heifers has remained relatively constant at approximately 65% first service conception; whereas, the first service conception rate for lactating cows has decreased approximately 33% from 60 to 40%. Conception per insemination is the outcome resulting from a multitude of factors that interact in an intricate fa...
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Select Sires Inc.
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23 de agosto de 2016
What would be the Human factors influence and their relative percentage effects ? Would you care to comment Dr ?
SR Donapaty BVSc MVSc PhD ECFVG
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24 de agosto de 2016
What is the most accurate method of detecting a heifer on heat? I have a major problem of this and the result is AI failure. Another one what is the safest method of checking early pregnancy one to three months? Thanks.
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30 de agosto de 2016
What is the most accurate method of detecting a heifer on heat? I have a major problem of this and the result is AI failure. Another one what is the safest method of checking early pregnancy one to three months? Thanks.
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Select Sires Inc.
30 de agosto de 2016
Visual inspection for "standing" to be mounted by a herdmate is the most accurate method of heat detection. Recommendation is a minimum of two 30 minute observation periods once the the AM and once in the PM. Insemination using the AM/PM guideline works well for heifers.
Pregnancy diagnosis: Earlier than 35 days post breeding ultrasound scanning, After 35 days ultrasound is best but an experience training individual rectal palpation is very effective.
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