1. School of Nutrition and Food Sciences; Louisiana State Univ. Agricultural Center; Baton Rouge La. U.S.A
2. Dept. of Biological and Physical Sciences; Univ. of Holy Cross; New Orleans La. U.S.A
3. Dept. of Animal Sciences; Louisiana State Univ. Agricultural Center; Baton Rouge La. U.S.A
4. Dept. of Biological and Agricultural Engineering; Louisiana State Univ. Agricultural Center; Baton Rouge La. U.S.A