A Review of a Few Key Factors Regulating Voluntary Feed Intake in Ruminants 1
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منابع مشابه
A Review of a Few Key Factors Regulating Voluntary Feed Intake in Ruminants1
ing the integration of multiple feedback signals in the control of feeding behavior (Forbes, 1995, 1996). Because of During the history of ruminant nutrition many factors have been the experimental difficulties in the study of the central proposed as regulators of voluntary feed intake. In some cases, the implicit assumption has been that a factor acted independently and nervous system, the use...
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Energy requirements of animals are most readily expressed in terms of net energy (NE), while the energy yield of feed is, at least initially, expressed in terms of metabolisable energy (ME). Energy evaluation systems 'translate' NE requirements into ME requirements (ME systems) or assign NE values to feeds (NE systems). Efficiency of ME utilisation is higher for maintenance than for production ...
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The purpose of this paper is to review our understanding of the involvement of central and peripheral factors in the control of feed intake in ruminants. The regulation of body weight under various states of energy need depends on an animal's ability to control feed intake to meet these needs. In the central nervous system (CNS), the ventromedial and lateral hypothalamus appear to be the areas ...
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Genetic and environmental changes during the last few decades have resulted in higher milk production and maintenance costs of lactating sows, leading to increased energy requirements, whereas the amount of body fat reserves of, in particular, young immature sows have decreased and voluntary feed intake may have decreased. As a consequence, present voluntary feed intake of sows during lactation...
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ژورنال
عنوان ژورنال: Crop Science
سال: 2002
ISSN: 0011-183X,1435-0653
DOI: 10.2135/cropsci2002.1651