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Intake and Digestibility by Sheep of Wilted Alfalfa-Timothy or Corn Silages Ensiled at Low and High Dry Matter Levels¹

Macdonald Campus of McGill University^,3, Ste. Anne de Bellevue, Quebec, Canada

Abstract

Corn silage has rapidly become the forage of major importance in many areas of the North American Continent. It has certain advantages over other commonly grown forages which include energy yield per acre and convenience of harvest, preservation and feeding. Lactating dairy cows consumed more dry matter (DM) and produced more milk when the DM content of corn silage was increased (Bryant, Huber and Blaser, 1965; Huber, Graft and Engel, 1965; Owens et al., 1967). However, there are some regions in Canada and the United States where the short growing season limits corn from attaining a dry matter content sufficient for maximal animal production. In these areas it may be more desirable to emphasize forage programs other than corn.

Studies relating the feeding value of grass or legume silage to corn silage are few. However, there are numerous comparisons for either hay and high DM grass silage or hay and corn silage.

¹ Financial support provide by the Quebec Agricultural Research Council and the Canada Department of Agriculture.

^₂ The technical assistance of P. Puzio, B. Dolgowicz and M. Huberty is gratefully acknowledged as well as the computer services provided by Dr. J. E. Moxley.

³ Department of Animal Science.