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Oestrus Synchronisation with CIDR Cattle Devices from Pfizer Animal Health

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CIDR Cattle Devices from Pfizer Animal Health contain the natural hormone progesterone. Intravaginally placed CIDR’s release progesterone at a controlled rate into the blood stream.

Approved Uses

Synchronisation of Oestrus:

Insert for 7-12 days with injection of prostaglandin F2á at removal. Animals normally come into oestrus 48-96 hours after removal. A “heat mount detector” or tail paint for detecting oestrus is recommended.

Treatment of Post-Partum Anoestrus:

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.

Resynchronisation of Oestrus

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.

Veterinary Specialist Use:

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.

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 cows

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 customized 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

For more information including Material Safety Data Sheet go to: http://www.pfizeranimalhealth.com.au/product_overview.asp?drug=CI&country=AU&lang=EN&species=BF

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