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Structure and organization comparisons of U.S. large volume swine producers : a national survey
(University of Missouri--Columbia, 1986)
A national sample of hog operations marketing 1,000 head or more a year was taken in 1981. A mail questionnaire gathered the necessary information. A second survey grouped operations into three groups: feeder pig producers, ...
Yeast mutants containing elevated methionine
(University of Missouri--Columbia, 1983)
Yeasts are deficient in methionine which restricts the nutritive value of the protein. The objective of this research was to produce a methionine-rich mutant. Mutants of Candida tropical is ATCC 1369, Candida tropica!is ...