gilt in heat

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gilt in heat

Postby bluebell » Wed Sep 29, 2010 5:21 pm

Will a gilt have a discharge like a sow does when they come in heat? We have two gilts that my son is wanting to A.I. but we are having a hard time catching them in heat. They will be 7months old the 15th of Oct. so they should have come in heat once by now I think. He doesn't want to use the PG600 to bring them in heat so any suggestions would be great.
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Postby tj56 » Thu Sep 30, 2010 11:58 am

Mine did. This will be a clear liquid. I guess may have known that. But she leaked both time she was in heat before we AI her.
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Postby DrAmy » Fri Oct 01, 2010 8:55 am

All animals are different, but gilts usually do have some clear, thick discharge just like you have seen on your sows. As for catching them in heat, you really need a boar and expose the gilt to him daily to see if she will stand. Also be sure to stimulate well with not only back pressure, but rubbing her flanks and underline, etc. If you do this for three weeks and still have not seen any signs of heat, I would go with the PG 600.
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Postby bluebell » Sat Oct 02, 2010 9:11 pm

Thank you guys for the suggestions. We do not have a boar nor can we get one to use or borrow. We have thought about the PG600 but my son hasn't decided if he wants to use it yet. We have had two litters with his sow and these gilts are her daughters. This is his 4-H project and we are hoping that we have mom re-bred for fair babies. Is seven months old to young to breed? We would like to breed them for fair babies also and we need to have this done sometime this month to make our fair.
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Postby DrAmy » Mon Oct 04, 2010 8:35 am

As to breeding age, I do not like to breed anything under 210 days of age and prefer 230-240 days for maximum lifetime productivity. They also need to be over 300# at the time of breeding.
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Postby drw » Mon Oct 04, 2010 11:13 am

We bred pigs for 15 years. For about half that time we had only a few sows and did not use a boar to help with heat detection. It's certainly easier to initiate and detect heat in gilts with a boar present, but you can do it without a boar (in most cases). The exceptions are females that don't show many signs of heat, and the occasional one that simply won't stand unless a boar is present.
Here's an alternative to PG 600: If the gilt is physiologically mature, you can often "jump start" heat by taking them for a ride or by changing their surroundings. That's why you sometimes see gilts in heat at shows. Put the gilt in a trailer and drive around for 30 minutes or so. If you plan to A.I., I'd suggest that you do this on a Friday or Saturday. That should put her in standing heat by the following Tuesday or Wednesday, which matches up with the delivery schedule for boar semen.
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