- Ovarelin Target species Cattle: cows, heifers.
- Indications for use, specifying the target species Induction and synchronisation of oestrus and ovulation in combination with prostaglandin F2a (PGF2α) or analogue with or without progesterone as part of Fixed Time Artificial Insemination (FTAI) protocols.
Treatment of delayed ovulation (repeat breeding).
A repeat breeder cow or heifer is generally defined as an animal that has been inseminated at least 2 or often 3 times without becoming pregnant, despite having regular normal œstrus cycles (every 18 -24 days), normal œstrus behaviour and no clinical abnormalities of the reproductive tract.
- Special warnings for each target species The response of dairy cows to synchronisation protocols may be influenced by the physiological state at the time of treatment, which includes age of the cow, body condition and interval from calving.
Responses to treatment are not uniform either across herds or across cows within herds.
Where a period of progesterone treatment is included in the protocol, the percentage of cows displaying oestrus within a given period is usually greater than in untreated cows and the subsequent luteal phase is of normal duration.