Simulating Control Strategies for Johne’s Disease on NZ Dairy Farms: effects on the prevalence and economic impact of disease
نویسندگان
چکیده
Widespread speculation about the possible role of MAP in Crohn’s disease in humans has led to concern within the dairy industry, particularly since some studies have shown that the organism can survive pasteurization. A national control strategy would promote and protect New Zealand dairy export sales and match efforts by other major dairy producers such as the US, Australia and some EU countries.
منابع مشابه
Management Practices and Their Potential Influence on Johne’s Disease Transmission on Canadian Organic Dairy Farms—A Conceptual Analysis
Johne’s disease (JD) is a chronic, production-limiting disease of ruminants. Control programs aiming to minimize the effects of the disease on the dairy industry have been launched in many countries, including Canada. Those programs commonly focus on strict hygiene and management improvement, often combined with various testing methods. Concurrently, organic dairy farming has been increasing in...
متن کاملProtective effect of Johne’s disease attenuated vaccine in an intensive non-tuberculosis free dairy
This study was carried out to control Johne’s disease (JD) without interfering with tuberculosis (TB)control programme. A dairy herd (n>1500 heads) was used over a period of 6 years, from 1994 to 1999 forthis investigation. The herd had a history of heavy infection with Mycobacterium avium paratuberculosis(MAP) with culling rates of 1.5 and 5%, in 1991 and 1995, respectively. The mean annual lo...
متن کاملThe Effect of Socio-Personal Factors on Economic and Managerial Variables in Shahroud Commercial Dairy Farms
The purpose of this research was to study the effects of four personal and social variables including the age, literacy, job experience and size of herd on different variables such as implementing of managerial strategies in transition period, relevant costs of these strategies, average production per head and gross income of milk sale per head. For this purpose all required information were co...
متن کاملPrevalence and economic significance of goat pox virus disease in semi-arid provinces of Iran
BACKGROUND: Caprine pox virus disease play an important role in major constraints to small ruminants production in Iran. OBJECTIVES: This study was conducted in different districts of Iran to determine the prevalence of goats pox virus disease in different age groups, sex and seasons in Black goats of Iran. METHODS: In this study skin lesions of male and female goats were collected randomly ...
متن کاملDeterminants of foot-and-mouth disease in industrial dairy farms of Qazvin province: a case-control study
Foot-and-mouth disease (FMD) is a highly contagious viral disease of ruminants, which causes fever and blisters in their mouth and feet. This study, as a case- study design, was conducted to determine the factors related to FMD occurrence in the industrial dairy farms of Qazvin Province, Iran. The case unit was referred to any industrial dairy farms that had at least one cow or calf with clinic...
متن کامل