Effects of hay quality on milk production and hay intake by dairy cows
AuthorsDon A. Toenjes
Donald L. Bath
Authors AffiliationsDon A. Toenjes is Farm Advisor, Glenn-Butte Counties; Donald L. Bath is Extension Dairy Nutritionist, University of California, Davis; Manuel Borges is Assistant Professor, Chico State College.
Hilgardia 21(6):3-4. DOI:10.3733/ca.v021n06p3. June 1967.
Alfalfa hay usually provides at least b half of the roughage used for California milk production by dairy cows during some portion, if not all, of the 365 days of the year. It may be the only source of nutrients for dairy cows on grade B dairies during the winter season. Selection of alfalfa hay is a major management consideration for California dairymen because the nutritive value and feeding quality are highly variable. An accurate gauge of the nutritive value of a given lot of hay is the level of crude fiber it possesses. A method for evaluating nutritive value from the crude fiber content has been developed by the California Experiment Station. Commercial laboratories, using this method, have been available to test samples of hay submitted by progressive dairymen.
Also in this issue:High-moisture grain for lactating dairy cattle
Corn silage and alfalfa hay for lactating dairy cows
Iron in citrus production
Studies of phytotoxicity in the use of herbicides for controlling annual weeds in almond orchards
Vegetative propagation of cotton plants by cuttings
DHIA record analysis shows little variation in daily milk and total lactation yield
Alfalfa variety tests in Central California
The influence of temperature and oxygen level on the respiration and ripening of Wickson plums