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Modification of a GnRH-based system to synchronise oestrus in Bos indicus cattle improves pregnancy rates to AI in heifers but not cows.

John CavalieriS Das
Published in: Australian veterinary journal (2022)
Treatment with the GnRH-18 compared to the GnRH-7 protocol increased pregnancy rates to AI in heifers but not in nonlactating or lactating cows.
Keyphrases
  • artificial intelligence
  • preterm birth
  • pregnancy outcomes
  • randomized controlled trial
  • heat stress
  • dairy cows