Free communications cattle production

Date: 08 June ‘05; 8:30 - 12:30 hours
Chairperson: Lazzaroni (IT)

Theatre

• Modelling repeated measures of ejaculate volume of Holstein bulls using a Bayesian random regression approach (Serrano, M., M.J. Carabaño and C. Díaz)
• Genetic and environmental effects on semen quality of Austrian Simmental bulls (Gredler, B., C. Fuerst, B. Fuerst-Waltl, H. Schwarzenbacher and J. Sölkner)
• Effect of body condition on dairy and reproductive performance in Holstein-Friesian cows (Szücs, E., J. Püski, Tran Anh Tuan, A. Gáspárdi and J. Völgyi-Csik)
• The relationship between lactation persistency and reproductive performance in New Zealand dairy cattle (Lopez-Villalobos, N., L.R. McNaughton and R.J. Spelman)
• Normal and atypical progesterone profiles in Swedish dairy cows (Petersson, K.-J., H. Gustafsson, E. Strandberg and B. Berglund)
• Oestrus detection in dairy cows using control charts and neural networks (Krieter, J., E. Stamer and W. Junge)
• Bioenergetic factors affecting conception rate in Holstein cows (Patton, J., D. Kenny, F. O'Mara, J.F. Mee and J.J. Murphy)
• Effect of honeybee royal jelly on the nuclear maturation of bovine oocytes in vitro (Kuran, M., E. Sirin, E. Soydan and A.G. Onal)