Oestrus Synchrony

Oestrus synchrony programs involve administration of a program of treatments for sexually mature and cycling cows and heifers, which results in this group of animals coming into heat (oestrus) and ovulating at approximately the same time. 

There are two main programs for synchronising heifers. Double PG is only a viable option when (i) animals are ovulating (having reached puberty) and (ii) heat detection and AI is available for a minimum of four days. In most scenarios, DIB Co-Synch will provide a superior return on investment for NZ dairy heifers or beef cows due to the superior expected pregnancy outcomes with this program. 

The benefits of synchronising dairy heifers are:

  • - An additional 3% of heifers pregnant at the end of the mating period
  • - Conceiving 11 days earlier, which will result in heifers calving 11 days earlier. For farmers, this means 11 additional days in milk and higher total milk production
  • - 11 additional days for recovery after calving prior to the next mating period
  • - Tighter calving spread which is simpler to manage for farmers
  • - Faster genetic gain

See the link to our DIB Co-Synch Farmer Flyer for heifer synchrony here.

Program timer for heifers synchronised with DIB Co-Synch:
Program timer for beef cows synchronised with Beef-Synch:

See the link to our Beef-Synch Farmer Flyer for beef synchrony here

See the latest news story by viewing the introductory video below: 


Oestrus Synchrony



Oestrus synchrony programs involve administration of a program of treatments for sexually mature and cycling cows and heifers, which results in this group of animals coming into heat (oestrus) and ovulating at approximately the same time. 





































There are two main programs for synchronising heifers. Double PG is only a viable option when (i) animals are ovulating (having reached puberty) and (ii) heat detection and AI is available for a minimum of four days. In most scenarios, DIB Co-Synch will provide a superior return on investment for NZ dairy heifers or beef cows due to the superior expected pregnancy outcomes with this program. 



































The benefits of synchronising dairy heifers are:











  • - An additional 3% of heifers pregnant at the end of the mating period

  • - Conceiving 11 days earlier, which will result in heifers calving 11 days earlier. For farmers, this means 11 additional days in milk and higher total milk production
  • - 11 additional days for recovery after calving prior to the next mating period
  • - Tighter calving spread which is simpler to manage for farmers

  • - Faster genetic gain










See the link to our DIB Co-Synch Farmer Flyer for heifer synchrony here.











Program timer for heifers synchronised with DIB Co-Synch:






















































Program timer for beef cows synchronised with Beef-Synch:










































See the link to our Beef-Synch Farmer Flyer for beef synchrony here

See the latest news story by viewing the introductory video below: