Compliance of Victorian dairy farmers with current calf rearing recommendations for control of Johne's disease.

Questionnaires were posted to 800 randomly selected registered Victorian dairy farmers in 1996. Five hundred and thirty-four responses were received and analysed. Johne's disease (JD) had been diagnosed on the farm of 13.

Synchronising ovulation in dairy cows with either two treatments of gonadotropin-releasing hormone and one of prostaglandin, or two treatments of prostaglandin.

Objective: To compare oestrus synchronisation using two treatments of gonadotropin-releasing hormone (GnRH) and one of prostaglandin F2 alpha (PG) with a double prostaglandin synchronisation protocol under southern Australian conditions.

Design: A clinical trial.

Procedure: Eight hundred and forty, seasonally calving, lactating dairy cows within nine herds in the Tallangatta district of northeast Victoria were randomly allocated to treatment and control groups.