Author
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Fisher, Dwight |
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Submitted to: Agronomy Abstracts
Publication Type: Abstract Only Publication Acceptance Date: 10/18/2000 Publication Date: N/A Citation: N/A Interpretive Summary: Technical Abstract: During the history of ruminant nutrition many factors have been proposed as regulators of voluntary feed intake. In some cases the implicit assumption has been that a factor acted independently and exclusively of other mechanisms. For example, distension feedback and chemostatic feedback have sometimes been viewed as operating independently. Factors controlling ruminant intake should not be assumed to be exclusive or to function without interactions. A number of additional factors such as dietary protein will be discussed in the context of interacting regulatory effects on intake. Behavioral aspects also impact voluntary feed intake and can have an overriding control if an adverse impact has been associated with the feed through post-ingestive feedback. Positive associations can also be linked to a particular feed through post-ingestive feedback. Ruminants can learn to select feeds and alter intake based on past experiences with particular feeds. An integrated approach is proposed as a means to understanding ruminant feed intake and eventually to improving prediction of intake. |
