Date of Award:

5-1957

Document Type:

Thesis

Degree Name:

Master of Science (MS)

Department:

Animal, Dairy, and Veterinary Sciences

Department name when degree awarded

Dairy Production

Committee Chair(s)

George E. Stoddard

Committee

George E. Stoddard

Committee

George Q. Batemen

Committee

Charles H. Mickelsen

Abstract

Pasture is considered one of our most important agricultural crops, contributing more than one third of all feed consumed by livestock in the United States. High quality pasture has been recognized to be highly important in efficient milk production. It has been shown, however, that good pasture must be supplemented by concentrates if milk production is to be maintained at a high level.

A pasture mixture developed at the Utah Agriculture Experiment Station has yielded considerably more total digestible nutrients per acre than other roughages or farm grains commonly grown in Utah. Concentrates tend to be relatively more expensive than roughages. If part of the concentrates generally recommended for milk production could be replaced by high yielding pasture or good quality alfalfa hay without loss of production it would be economically advantageous to the dairy farmer.

As the amount of grain fed is reduced, it appears likely that cows on pasture will consume more pasture forage or milk production and body weight will be affected adversely. The purpose of this experiment is to determine the effects on pasture consumption, persistency of milk production and body weight changes of feeding hay or various amounts of grain to lactating cows fed clipped pasture forage.

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