Toxemia in pregnancy is a very serious condition. The pups press against their mommy's organs making it hard for the blood flow, this cause less blood flow to the uterus and uterine tissues, which is fatal for the fetuses. Obese sows that carry more than 1 pup are most affected by this condition. To avoid this condition you may follow these steps
-Keep your cavies at a reasonable weight
-Do not overfeed your cavies
-DO NOT change your sow's food (unless it is harming your sow)
-DO NOT move or change your sow's environment
-Provide fresh greens
-Prevent stress
-Handle pregnant sows gently and as little as possible