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Natural Service

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Natural Service. Pasture mating Male is allowed to roam freely with the females Hand mating Female is brought to the male for service. Artificial Insemination (AI). Semen from a male animal is manually inserted into a female animal. Embryo Transfer (ET).

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Presentation Transcript
natural service
Natural Service
  • Pasture mating
    • Male is allowed to roam freely with the females
  • Hand mating
    • Female is brought to the male for service
artificial insemination ai
Artificial Insemination (AI)

Semen from a male animal is manually inserted into a female animal

embryo transfer et
Embryo Transfer (ET)
  • Breeding technique where embryos from one female are collected and transferred into the reproductive tract of the other females
  • Superovulation
    • Production of multiple eggs during a single ovulation and is induced with the FSH and prostaglandin
the livestock industry
The Livestock Industry
  • Nearly three-fourths of all calves born in U.S. dairy herds are conceived through AI or ET
  • Only 5% of beef calves are produced through AI or ET
  • Most AI is done in-house with fresh semen for the swine industry
  • Until recently AI was not a viable option for sheep producers. Now a new spiral catheter is used to inseminate
  • Over 90% of commercial turkeys are produced using AI
semen quality
Semen Quality
  • Cryopreservation
    • technique for freezing semen
  • Motility
    • sperm’s ability to move independently
  • Morphology
    • size and shape of the sperm
expected progeny difference epd
Expected Progeny Difference (EPD)
  • Producers who understand EPDs will be able to choose genetically superior animals, which will help predict the offspring’s desired qualities
  • Used to compare individual animals to other individuals of the same breed, as well as to the breed average
pregnancy testing methods
Pregnancy Testing Methods
  • Rectal Palpation
    • gloved hand is inserted into the rectum to palpate the uterus through the rectum wall
  • Rectal Doppler Technique
    • probe that is inserted into the rectum and measures the heartbeat of the fetus or fetuses
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