Efficiency of energy utilisation and voluntary feed intake in ruminants

Efficiency of energy utilisation and voluntary feed intake in ruminants.

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 ...

Efficiency of Feed Utilisation by Ruminants

Metabolisable energy content of a feed or its components has been used to assess its feeding value for ruminants. The demonstration that VFA energy could, at times, be used highly inefficiently when included in a roughage diet, led to the suggestion that feeds for ruminants should be evaluated in terms of their net energy. The establishment of calorimetry technology in nutritional research was ...

Some Factors Influencing the Efficiency of Feed Utilisation by Ruminants with Special Reference to the Tropics

The effect of nutrients on feed intake in ruminants.

The purpose of the present review is to examine the role played by nutrients in controlling feed intake in ruminants, in light of their particular anatomical, physiological, nutritional and behavioural characteristics. The ration is first digested in the rumen for several hours by microbial fermentation. Volatile fatty acids, which constitute 50-75% of a ruminant's energy supply, considerably d...

Physiological changes affecting voluntary food intake in ruminants.

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