Session 45. Feed efficiency: physiological and genetic mechanisms

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Date: 29 August 2013; 08:30 – 12:30 hours
Chairperson: Scollan

Theatre Session 45

08.30 Physiological aspects of feed efficiency in ruminants
Invited A. Bannink, C. Reynolds, L. Crompton, K. Hammond and J. Dijkstra

09.00 Genetics of feed efficiency in ruminant and non-ruminant animals
Invited D.P. Berry

09.30 Joint estimation for curves for weight, feed intake, rate of gain, and residual feed intake
J. Jensen

09.45 Comparison of energetic efficiency of Holstein-Friesian and other dairy cow genotypes
L.F. Dong, T. Yan, C.P. Ferris, A.F. Carson and D.A. Mc Dowell

10.00 Does cow genetic merit influence maintenance energy requirement and energetic efficiency?
L.F. Dong, T. Yan, C.P. Ferris, A.F. Carson and D.A. Mc Dowell

10.45 Feed efficiency across species: aquaculture, monogastrics and ruminants
Invited S. Avendano

11.15 The relationship between residual feed intake in growing heifers and cows
J.E. Pryce, L. Marett, W.J. Wales, Y.J. Williams and B.J. Hayes

11.30 Selection for eye muscle depth breeding value increases dressing percentage in lambs
G.E. Gardner, A. Williams, A.J. Ball, R.H. Jacob and D.W. Pethick

11.45 Genome wide association analysis for residual feed intake in Danish Duroc boars
D.N. Do, T. Ostersen, A.B. Strathe, J. Jensen, T. Mark and H.N. Kadarmideen


Poster Session 45

Fatty acid and transcriptome profile of loin muscle and liver in pigs fed with PUFA enriched diet
M. Pierzchala, E. Polawska, P. Urbanski, M. Ogluszka, A. Szostak, A. Józwik, J.O. Horbanczuk, D. Goluch and T. Blicharski

Zip4-like zinc transporter variability is widespread in different commercial pig crossings
G. Erhardt, S. Welp and I.J. Giambra