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Kansas Agricultural Experiment Station Research Reports
2007; Kansas Agricultural Experiment Station contribution; no. 07-179-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 978; Beef; Cattle; Energy efficiency
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Full-Text Articles in Life Sciences
Comparison Of Feed Efficiency Rankings Of Heifers Fed Low And High Energy Dense Diets (2007), J.A. Christopher, T.T. Marston
Comparison Of Feed Efficiency Rankings Of Heifers Fed Low And High Energy Dense Diets (2007), J.A. Christopher, T.T. Marston
Kansas Agricultural Experiment Station Research Reports
Concepts related to energy efficiency in cattle have been the basis for many research projects. Even though differences in individuals have long been recognized, little effort has been focused on the causes of the observed variations. The concept of residual feed intake was first introduced in 1963, and is calculated as the difference between actual feed intake by an animal and its expected feed intake based on body weight and growth rate. Residual feed intakes are phenotypically independent of the production traits used to calculate expected feed intake. Consequently, residual feed intake values can be useful in comparing individuals differing …