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Date: Wednesday 29 August 2018; 14.00 – 18.00
Chair: R. Keatinge / M. Klopčič

Theatre Session 44

Compound feed costs for dairy cattle affected by local sourcing
G. Van Duinkerken and G.J. Remmelink
invited

Factors associated with feed efficiency traits in Italian Jersey cows
F. Monti, G. Visentin, M. Marusi, R. Finocchiaro, J.B.C.H.M. Van Kaam, G. Civati and R. Davoli

Selection for claw health and feed efficiency in the Czech Holstein
Z. Krupová, E. Krupa, M. Wolfová, J. Přibyl and L. Zavadilová
invited

Relationships between cow performance with milk urea yield and efficiency of protein utilization
M. Correa-Luna, N. Lopez-Villalobos, D.J. Donaghy and P.D. Kemp

Differences in productivity of grazing dairy cows with low versus high genetic merit for milk urea
N. Lopez-Villalobos, M. Correa-Luna, J.L. Burke, N.W. Sneddon, M.M. Schutz, D.J. Donaghy and P.D. Kemp

Feeding of rumen-protected fat limited by Dutch industry to avoid negative effects on cheese quality
A. Elgersma

Effects a of reduced day milking interval on dairy cows performances and labour costs
V. Brocard, A. Caille and E. Cloet
invited

No dry period: consequences for dairy cows, cash flows, and climate
A. Kok, A.T.M. Van Knegsel, C.E. Van Middelaar, H. Hogeveen, B. Kemp and I.J.M. De Boer

Aggregating dairy cattle welfare measures into a multicriterion welfare index
F. Tuyttens, B. Ampe, S. Andreassen, A. De Boyer Des Roches, F. Van Eerdenburg, M.J. Haskell, M. Kirchner, L. Mounier, M. Radeski, C. Winckler, J. Bijttebier, L. Lauwers, W. Verbeke and S. De Graaf

Does welfare improvement jeopardize emission mitigation: model calculations for Austrian dairy farms
A.C. Herzog, S. Hörtenhuber, C. Winckler and W. Zollitsch

Incorporating methane emissions into the breeding goals in dairy cattle under different scenarios
L. Ouatahar, J. Lopez-Paredes, N. Charfeddine and O. González-Recio

Poster Session 44

Technical and economic impacts of concentrates according to stage and row of lactation of dairy cows
V. Brocard, E. Tranvoiz and B. Portier

Economic assessment of mountain dairy farms considering concentrate supplementation and breed
S. Kühl, L. Flach, C. Lambertz and M. Gauly

Breeding values for live weight of dairy cattle
C. Fuerst, B. Fuerst-Waltl, C. Pfeiffer and C. Egger-Danner

Dairy cow behaviour and stall cleanliness when using flexible vs conventional free stall dividers
E. Grotelüschen, K. Geburt and U. König V. Borstel

Environmental impacts of sulphuric acid and added biochar on cattle slurry – a life cycle assessment
C. Miranda, A.S. Soares, A.C. Coelho, H. Trindade and C.A. Teixeira

Is pre-milking teat disinfection worthwhile if you have low herd SCC?
D.E. Gleeson and B. O’Brien

Influencing factors on hair cortisol concentrations in pigs and cattle
S. Heimbürge, E. Kanitz, A. Tuchscherer and W. Otten