Here is the the previous and following sentences:
"Over the last sixty years, many things have changed in the way we feed cattle. Cattle have changed, facilities have changed, management has changed, and of course, diets have changed. Cattle feeders learned early on that getting cattle started right is essential to keep them out of the sickpen and to get them to gain and convert efficiently. One of the tools that has been a resource for cattle feeders over the last 60+ years is yeast culture.
"To get something started right" is a colloquial way of saying "to begin something correctly". In this case, cattle feeders learned early on that it was essential to ensure that cattle fed well from birth in order for them to stay healthy and to grow well.
As is expected, please tell us where you read this text.