Blood plasma effect on production
Many scientific experiments have been conducted with plasma through the years these experiments show that the use of plasma helps to improve the daily gain, feed intake, reduces mortality and use of antibiotic.
See some of the experiments here.
Effects of spray-dried animal plasma and immunoglobulins on performance of early weaned pigs
Spray-dried plasma improves growth performance and reduces inflammatory status of weaned pigs challenged with enterotoxigenic Escherichia coli K88
Starter Diets and Beyond: Benefits of Spray Dried Plasma
Use of plasma as alternative to medication in feed for weanling pigs, meta analyze
What is plasma and how does it work?