Successful reproductive performance with nil inductions

Abstract

Induced parturition has become internationally unacceptable and the New Zealand dairy industry has set a target for less than 2% inductions in the national herd by 2010 (NZV A 2002). With reduction in the use of induced parturition as a tool, farmers require new strategies to manage late conceiving cows. This paper reports on the findings of a case study analysis completed in 2005/2006 of seasonal supply dairy farms in North Otago and Canterbury. Farms were selected on their reproductive performance (empty rate) and a nil induction policy. The study focused on the management strategies being used by the farmers to achieve satisfactory reproductive performance. Nine farms were studied which gave a range of farm sizes, cow numbers, and management strategies being utilised.