October 2013

Metabolic status and oestrous cycle in dairy cows

A study with 40 multiparous high yielding dairy cows was conducted to investigate the influence of an induced negative energy balance (NEB) on reproductive performance. Energy restriction of 49% was performed for 3 weeks beginning on oestrous cycle day 12 of first oestrous cycle after day 85 post partum (pp). From day 20 to day 150 pp animals were monitored for ovary activity three times weekly using rectal palpation...

Author(s): K. Danowski, J. J. Gross, K. Gellrich, T. Petri, H. A. Van Dorland, R. M. Bruckmaier, H. D. Reichenbach, R. Zimmer, H. H. D. Meyer, F. J. Schwarz and H. Kliem

October 2013

Biometrical multivariate study of the Zambian indigenous Fat-tailed sheep

Body weight and twelve body measurements taken on fifteen ewes and five rams of the Zambian indigenous Fat-tailed were analysed. The sheep were extensively managed in the Southern and driest part of Zambia. The aim of the study was to achieve a preliminary assessment of type and function of the breed based on zoometrical indices produced from combinations of different morphometric values obtained from the field. The...

Author(s): Parés-Casanova, Pere M., Mwaanga, E. S., Caballero, M., Sabaté, J. and Valenzuela, S.