EAZI-BREED™ CIDR® Cattle Devices (10 devices per pack)

Zoetis EAZI-BREED CIDR™ Cattle Devices contain the natural hormone progesterone. Intravaginally placed CIDRs release progesterone at a controlled rate into the blood stream.

$184.00 ($202.40 incl. GST) each

Applicator - EAZI-BREED™ CIDR® for Cattle (Green colour)

Plastic applicator for EAZI-BREED™ CIDR® Devices for Cattle.

Applicator - EAZI-BREED™ CIDR® for Cattle LONG shaft (Blue colour)

Plastic applicator for EAZI-BREED™ CIDR® Devices for Cattle.

Zoetis (formerly Pfizer) CIDR™ Cattle Devices contain the natural hormone progesterone. Intravaginally placed CIDRs release progesterone at a controlled rate into the blood stream.

Approved Uses

    • Insert for 7-12 days with injection of prostaglandin F2α at removal.
    • Animals normally come into oestrus 48-96 hours after removal.
    • A “heat mount detector” or tail paint for detecting oestrus is recommended.
    • When lack of ovarian activity is diagnosed, insert for 5-7 days and inject 1mg oestradiol benzoate 24-48 hours after device removal. Responsive animals will be detected in oestrus during the next 4 days. Re-examine and then retreat unresponsive animals.
    • Insert for 14-17 days after first insemination and remove on the 21st day post insemination. Animals not pregnant to the first service are in oestrus approx. 48-96 hours after device removal.
    • The veterinarian may use the plasma progesterone elevating properties of the CIDR™ Cattle Device in a program specifically designed for the requirements of a particular herd. The device will elevate progesterone blood levels above 1.5 ng/mL for at least 12 days. This level will drop below 1.5 ng/mL in less than 1 hour after removal.


  • Plastic bags containing 10 devices
  • Applicators sold separately.

Key Features

Breeding programs using the CIDR™ Cattle Device can:
  • Tighten oestrus synchronization so animals come into oestrus in a narrow time period
  • Provide an opportunity to induce a fertile oestrus in non-cycling cow
  • Hasten the onset of cyclicity in maiden heifers
  • Treat cystic ovarian disease
  • Prepare donor recipient cattle for embryo transfer programs.
Using CIDR™ Cattle Devices can result in:
  • More pregnancies
  • More compact calving season
  • More even line of calves
  • Less involuntary culling of non-pregnant cows
  • Better use of time and labour during breeding, pregnancy testing and calving
  • Tighter calving intervals, with more calves born during a cow’s lifetime
  • Easier and more accurate heat detection, or the option of no heat detection
  • Enhanced use of artificial insemination (AI) or specialist programs such as ET, with
  • Greater genetic gain and higher value calves
  • Ability to schedule heifers to calve before older cows, so heifers can get extra attention
  • Easier customised matings – including the use of calving-ease sires – because AI is more feasible
  • Confirmed breeding and calving dates – not always possible with natural service
  • A more profitable herd

Dosage and Administration

Refer to the label and manual for appropriate programs.

Wear protective gloves when handling the devices.


  • Dip the device applicator in a a non-irritating antiseptic solution
  • Place one device into the applicator so the wings are folded and only the lips of these wings protrude from the front of the applicator.
  • Dip the front portion of the loaded applicator into a suitable veterinary obstetrical lubricant
  • Lift the tail of the animal and wipe the vulva lips clean with disposable tissue.
  • With the tail lifted, insert the loaded applicator, sloping slightly upwards, through the vulva and then forward, without forcing, into the forward portion of the vagina.
  • Release the removal tail, grasp the handle of the plunger and ease back the barrel of the applicator towards the handle.
  • With the device correctly placed with the wings opened in the front portion of the vagina, only the removal tail should be hanging from the vulva.
  • Repeat Step 1 before re-using the applicator


  • Withdraw each device by pulling on the removal tail.
  • Always remove devices before slaughter.

Additional Information

  • Storage: Store in a dry place below 30°C (room temperature).
  • Witholding period: * Meat: Nil *Milk: Nil
  • Schedule S5

EAZI-BREED™ and CIDR® are registered trademarks of Zoetis Animal Health.

Zoetis, formerly the animal health business of Pfizer, is a global animal health company dedicated to supporting its customers and their businesses in ever better ways.

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