Forage Quality of Annual Ryegrass
- H. Lippke and
- W. C. Ellis
Immature annual ryegrass (Lolium multiflorum Lam.) can contain levels of digestible nutrients that allow many ruminants to approach their genetic potential for production. This highly nutritious stage of maturity may persist for three or more months before significant declines in digestibility occur; however, nutritional limitations of ryegrass are repeatedly indicated by unpredictably mediocre performance of young animals grazing highly digestible primary growth. These limitations appear related (i) to unfavorable initial adaptations by the ruminal microbial ecosystem to such rapidly digestible forage, (ii) to an inefficient ruminal fermentation and synthesis of microbial protein, and (or) (iii) to reduced forage intake. When suboptimal animal response is related to poor protein use, it may be ameliorated by supplemental feedstuffs and (or) dietary adjuvants that appear to improve efficiency of ruminal protein and energy transformations.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
Copyright © 1997. . Copyright © 1997 by the Crop Science Society of America, Inc., 5585 Guilford Rd., Madison, WI 53711 USA