Prandial correlations and the structure of feeding behaviour

Publication year: 2012 Source: Applied Animal Behaviour Science, Available online 5 February 2012 Bert J. Tolkamp, Jennifer A. Howie, Tobias A.G. Bley, Ilias Kyriazakis Prandial correlations measure the strength of the effects of between-meal interval length on the size of subsequent meals (pre-prandial) and vice versa (post-prandial) and provide insight into the control of food intake. In this paper we develop hypotheses about prandial correlations by using feeding behaviour data consisting of more than 300,000 meals that were recorded from at least 290 animals from each of six genotypes (four broiler lines, ducks and turkeys). The objectives of the study were to (i) obtain estimates of pre- and post-prandial correlations in the three species, (ii) quantify in probabilistic terms exactly how interval length affects meal size and vice versa and (iii) test whether prandial correlations were affected by selection intensity for growth in broilers.

Publication year: 2012 Source: Applied Animal Behaviour Science, Available online 5 February 2012 Bert J. Tolkamp, Jennifer A. Howie, Tobias A.G. Bley, Ilias Kyriazakis Prandial correlations measure the strength of the effects of between-meal interval length on the size of subsequent meals (pre-prandial) and vice versa (post-prandial) and provide insight into the control of food intake. In this paper we develop hypotheses about prandial correlations by using feeding behaviour data consisting of more than 300,000 meals that were recorded from at least 290 animals from each of six genotypes (four broiler lines, ducks and turkeys). The objectives of the study were to (i) obtain estimates of pre- and post-prandial correlations in the three species, (ii) quantify in probabilistic terms exactly how interval length affects meal size and vice versa and (iii) test whether prandial correlations were affected by selection intensity for growth in broilers.

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Prandial correlations and the structure of feeding behaviour