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Meat in Nutrition

I. Preliminary Report on Beef Muscle^*

(From the Department of Foods and Nutrition, Home Economics Section, Iowa Agricultural Experiment Station, Iowa State College, Ames)

Excellent growth and reproduction were secured in rats consuming a meat ration supposedly well fortified with the necessary vitamins and mineral matter and having lean muscle beef as the main protein constituent. Disasters in lactation, i.e., cannibalism and failure of the milk supply, were numerous among the rats fed the meat ration, whereas no difficulties were encountered with the rats fed the control ration.

Modification of the experimental meat ration by increasing its yeast content, increasing the salt mixture and doubling the protein content, resulted in no appreciable improvement in the results.

Numerous hair-balls were found in the stomachs and intestines of the adult rats on the meat ration and were frequently the cause of death. Early senility was evident.

The meat ration proved suitable for growth and reproduction but failed to meet the needs of the mother rats during the critical period of lactation.

Manuscript received 28 March 1930.