Off-campus UMass Amherst users: To download campus access theses, please use the following link to log into our proxy server with your UMass Amherst user name and password.

Non-UMass Amherst users: Please talk to your librarian about requesting this thesis through interlibrary loan.

Theses that have an embargo placed on them will not be available to anyone until the embargo expires.

Access Type

Open Access

Degree Program

Animal Husbandry

Degree Name

Thesis (M.S.)

Year Degree Awarded





The United States leads the world in the production of swine. In an official estimate of January 1, 1915, she is credited with 64,618,000, which is more than three times as Germany, her nearest competitor. In the United States swine are produced chiefly in the central section of the country, generally spoken of as the "corn belt". This is largely due to the profitable returns made from corn when it is fed to swine. Sixteen per cent of the nutrients of corn fed to the average hog is returned in pork, while only three per cent is returned in beef.