Production, Management and the Environment: Systems, Economics, and Miscellaneous.

Presents abstracts of several studies on dairy production and management and the environment. "Minimum Dry Period Length to Maximize Performance," by M. T. Kuhn, J. L. Hutchison and H. D. Norman; "Effect of Photoperiod on Milk Production in Lactating Dairy Cows," by M. J. VanBaale, D. V. Armstrong, R. M. Mattingly and J. B. Fiscalini; "Reasons and Timing of Cows Leaving Dairy Herds in Florida and Georgia," by B. L. Butler and A. de Vries.