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The Thiamine, Riboflavin, Nicotinic Acid and Pantothenic Acid Contents of Mare's Colostrum and Milk and Ascorbic Acid Content of the Milk

Nutrition Laboratory, Agricultural Experiment Station and School of Agriculture, Agricultural and Mechanical College of Texas, College Station, Texas

ABSTRACT

Studies were made of the thiamine, riboflavin, nicotinic acid, and pantothenic acid contents of mare's colostrum and milk and of the reduced ascorbic acid content of mare's milk.

Mare's colostrum was found to contain an average of 38 µg. of thiamine, 138 µg. of riboflavin, 160 µg. of nicotinic acid and 747 µg. of pantothenic acid per 100 ml. The corresponding values for mare's milk are 16 µg. of thiamine, 40 pig. of riboflavin, 50 µg. of nicotinic acid, and 331 µg. of pantothenic acid per 100 ml. Mare's colostrum contains significantly less thiamine and riboflavin and more pantothenic acid than cow's colostrum. Cow's milk is richer in each of the four vitamins than mare's milk.

The average value for reduced ascorbic acid for mare's milk was 11.8 mg. per 100 ml. This is approximately five times greater than the ascorbic acid values found in this laboratory and reported in the literature for cow's milk.

Acknowledgment is made to Prances Panzer for assistance with some of the analytical work.