Effects of birth weight and milk replacer protein content on growth and transcriptomic profiles of the small intestine, liver, and muscle in complete artificially reared piglets

The subpopulation of piglets with low birth weight and reduced growth potential has increased and has contributed to increasing the mortality rate from birth to weaning. Two of the most important measures to reduce mortality rate is to ensure sufficient energy and nutrient intake, while creating a safe rearing environment for vulnerable piglets.

Use of complete artificial rearing with physical absence of the sow, with inclusion of unlimited access to a milk replacer high in fat and protein might potentially improve growth of low-birth-weight piglets.