The advantages in having clear traceability of large animals as they move across state lines

Although animal disease traceability does not prevent disease, an efficient and accurate traceability system reduces the number of animals and response time involved in a disease investigation.

Reduces the number of animals and response time involved in a disease investigation

Explanation:

Although animal disease traceability does not prevent disease, an efficient and accurate traceability system reduces the number of animals and response time involved in a disease investigation; which, in turn, reduces the economic impact on owners and affected communities.

your answer is "the 1950's"