Type of fat–Allfet or grease–did not affect the production or composition of milk or feed intake of dairy cows during a 6-week study. Both types resulted in high feed intakes and similar milk yields.

The authors wish to thank C. Hamilton and B. Cook of Calva Products, Inc. for donation of the Alifet product.

The project reported here was conducted by students in the upper division dairy production course (ANS 114) at UC Davis. It was one of four student group projects conducted during the spring quarter of 1988 to provide students with practical research experience in animal nutrition, reproduction, genetics, and health.