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Researchers study myelin to help improve piglet survival

U.S. Department of Agriculture (USDA) scientists are examining myelination's role in helping newborn piglets move quickly and easily to avoid being accidentally crushed by their mother.

Monday 24 February 2014 (4 years 3 months 4 days ago)

About 10 to 20 percent of piglets do not survive to weaning, and 5 to 10 percent are stillborn. Unlocking the effects of myelin production, an important aspect of brain development, in piglets may be one of the keys to their survival.

U.S. Department of Agriculture (USDA) scientists are examining myelination's role in helping newborn piglets move quickly and easily to avoid being accidentally crushed by their mother, a primary cause of piglet preweaning mortality.

Scientists compared myelin content from the cerebellum, brain stem and spinal cord, which are involved in coordination and reflexes, between the largest and smallest pig fetuses during a sow's late pregnancy. They found no differences in spinal cord myelination, which develops first, between the two groups. However, significantly less myelin was found in the brain stem and cerebellum of smaller pig fetuses.

In another study, they investigated energy metabolism and myelination in piglets. Feeding creatine to pregnant sows did not affect the birth process—the amount of time between piglets' births, number of stillbirths and preweaning mortality. However, the number of low-birth-weight piglets crushed by their mothers that received creatine was reduced.

Overall, these studies suggest that reduced myelin may contribute to poor survival of low-birth-weight piglets, and that improved myelination may help the piglet's ability to avoid the sow when necessary.

Thursday February 6, 2014/ ARS-USDA/ United States.
http://www.ars.usda.gov

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