Doc, my first sow and 2nd sow got pregnant they are the first batch then there due date 114 days last December 25,2007.. ang kaso my first sow ung una at pangalawang month ng pag bubuntis okay ..pero napansin nlng namin na parang huminto ang pag laki ng tyan.. pero the second sow okay nmn.. lumaki at nanganak ng 11 piglets pero ung isa.. na first sow nilabas nya din.. 15 piglets not full develop.. what is the cause ..
at yung first sow maari pabang mag bigay ng maganda sa pangalawang batch..
thanks a lot..
Reghis
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So, in your case you said that at 2 months you have noticed that the sows belly stops from growing and on the day of farrowing it give 15 piglets that are not develop.
If it looks like this it is called mummified.

The certain cause of this is that your animal had a problem during the late first to second months of pregnancy.
Problem includes nutritional, environmental or microorganism.
In your case it could be microorganism. Possibly parvovirus.
Parvo virus is the usual suspect if there is huge mummified piglets born.
I rule out nutritional because possibly both of you sow eats the same brand.
and also ruled out enviromental for i do believe they are confined in one housing only.
This is just all assumption for i didn't see personally your sow.
There is a vaccine for parvo virus that you could try. Just ask your local agrivet about it.