We have 4 mares in with our reg QH stallion. The problem is they all have foals at foot (3 month old foals) and they do not appear to be cycling at all. None of them seemed to have a foal heat and they have not shown since. Stallion is trying to court them but they wont allow any close contact let alone mounting. I was wondering if a PG injection would kick them along? I would stagger the injections over a few weeks, so he was not over faced!! Also...can you inform me as to the intensity of this heat (after the PG)..or is it just a regular heat? Maybe the PG wont make any differance until the foals are weaned? Jos pls help as the season is getting late here in Australia, and i do want foals next year if possible. BY THE WAY...stallion isnt really pushing the subject either, but has mated previous to this season!
Hi Tina, You don't say where in Aus you live, but here in NSW it was a much colder than average winter and Spring is off to a cool and rainy start! As your mares foaled in winter it may simply be that with the rigours of feeding their foals, they aren't as yet on the rising plane of nutrition needed to kick start their cycles. As the problem is with all four of your mares, it is most likely to be a management issue. You don't mention your feeding routine, but I have found Mutavite Breeda to be excellent across the board for mares, foals and stud stallions. The second factor could be that the mares are not happy for the stallion to be running with them. It sounds as though he isn't the sire of your current crop of foals. If you have suitable safe fencing, it could be a good idea to separate him; when the mares are interested again, it will be easy to see when they seek him out. Best of luck!
we scanned all mares and 2 are in foal and 2 are not...so we PG'd the empty ones and are waiting and watching (day 2 now).We are in south WA and all horses are in great shape fed daily and have mineral salt blocks. Stallions first year and he is learning the art of courtship...I feel this has a strong connection with the mares not cycling strongly...although mares are experienced broodmares all had 3~4 foals and im hoping they will seek him, as they have very very strong heats.
The stallion's lack of courtship ability will have nothing to do with a lack of induction of a mare's cyclicity. The stallion does not cause the mare to cycle. If the stallion was intimidated at first however by the mares (which is not unusual) he may have refused to even attempt to breed them (and indeed may continue to refuse for a while until he feels more secure).
ok.... i was told that if a stallions courtship was very strong then he will entice a mare to mate (that IS cycling but reluctent to mate with a foal at foot). Thankypou Jos for correction!! I understand that a stallion alone will not cause a mare to cycle. What i would like to know please Jos...is...will the cycle be stronger? My undersanding of a PG was that it broke down the CL and caused mare to cyle and that was its primary job..not causing her to heat stronger? But have been told that she will cycle stronger than ever..yes..no? It seems hard to get advice that is true and correct, many conflicting opinions here!
In the mare's own cycle, around day 12 or so after her prior ovulation the mare's own uterine lining secretes Prostaglandin F2α - that same hormone that you are giving her an injection of. In other words, all that you are doing when you are giving her an injection of Prostaglandin F2α is "resetting her clock" by causing Prostaglandin F2α presence in her body before her body itself releases it. Consequently, as I am sure you will understand, there is not going to be a different response as a result of an injection of the same hormone as the mare herself releases. It is possible that those people that tell you that giving the mare a shot causes her "to come into heat stronger" are merely noticing her response as a result of being aware when she is likely to be in heat, rather than not noticing it when she comes into heat naturally.
In the wild, a mare seeks out the stallion when she is ready to be mated, not the other way around. Consequently, it's not going to be a stallion "courting" her that is going to make any difference. Granted when a stallion teases hard, you may see a mare "break down" more - particularly in a hand breeding situation - but realistically, if the mare is going to let the stallion mount, she will do so without a huge amount of demonstration if she feels like it.
Now this is not to be confused with a hand-breeding situation where a mare has a foal at foot and is reluctant to be bred, and then has her leg tied up, hobbles put on, a twitch on her nose and a chain through her mouth, and then when the stallion teases her hard, she finally says "Oh, OK"...!!! In that type of a situation, the response is more submissive response than estrus! And anyway, if a mare is that determined not to be bred live cover, she should be AI'd in my humble opinion!!!
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