Abstract

The purpose of this research was to investigate the effects of managerial strategies for the prevention of milk fever in transition period in Shahroud commercial dairy farms. For this purpose, all required information were collected by preparing a questionnaire. Relevant questions about applying managerial strategies for the prevention of milk fever in transition period were inserted in first part. These strategies include the application of anionic salts in close up period, calcium restriction before calving (close-up period) and also benefiting from analogue of vitamin D (AD₃E). Therefore, the questions were on implementation condition and relevant costs. Next part was on relevant information about involvement with milk fever which includes incidence rate and treatment costs based on clinical signs of disorders. Last part was about reproduction information, average fertility and fertility costs. Then, all obtained results were analyzed using the SAS software. Finally, it was specified that application of effective managerial strategies for the prevention of milk fever in transition period had a significant effects on economic and managerial indices; and it is recommended to cattlemen as well.

Key words: Transition period, milk fever, managerial strategies, economic parameters.