The Protein Requirements of Mink During the Growth Period

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Abstract
Protein requirements of mink were determined with 6 groups of 4 male and 4 female kits during the growth period. The groups were given diets with a digestible protein content, varying from 17-54% of ME [metabolizable energy]. Differences in protein requirement between males and females depended on body size. Optimal dietary protein (quantity of protein which caused maximum N-deposition) decreased during growth period. Protein requirement was met by a content of digestible crude protein equal to 40-42% of ME from 10-17 wk of age, and 31-32% of ME from 19-24 wk of age. Protein requirement from 25 wk until pelting was equal to or perhaps greater than in preceding period.