Dr Heriberto Rodriguez-Martinez

Specific Causes of Reproductive FailureFertility in cattle has many pre-requisites and components, which require males and females to be functionally capable of reaching the last step, the birth of a normal, vital calf, thus defining the general breeding goal: cows should return to normal ciclicity early postpartum, show strong and regular estrous signs, conceive after AI, carry their pregnancy to ...

INTRODUCTIONMilk yield of the dairy cows has increased rapidly over the past 40 yeras and, in some European countries more than doubled, due to a combitation of improved genetics, feeding and management, with an overwhelming focus on milk production volumes. Fig. 1 depicts recent (years 2003 to 2008) global trends in yearly milk yield/cow in selected countries/regions. Sweden is leading the Europe ...

1,3,4Division of Reproduction, Dept of Clinical Sciences, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Uppsala, Sweden. 1,2,5,6,7,8,9Dept of Animal Environment and Health, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Skara, Sweden. 10Division of Ruminant Diseases and Epidemiology, Dept o ...