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Development of Candidate Management Interventions to Reduce Calf Wastage in Beef Herds in Northern Australia

其他書名	Final Report
出版	Meat & Livestock Association, 2017
URL	http://books.google.com.hk/books?id=rExOzQEACAAJ&hl=&source=gbs_api

註釋Losses between confirmed pregnancy and weaning (calf wastage) have been identified as one of the most important problems confronting the beef industry in northern Australia. A list of management interventions likely to reduce calf wastage was developed from the findings of a recent scientific review, PhD, and scientific papers describing the factors contributing to calf wastage. An expert opinion workshop was held to map out the proximate and more distal factors affecting calf wastage. From this, causal webs were developed to facilitate assessment of the impact of listed management interventions. A basic economic model was then developed to estimate the impact of each intervention on beef breeding business profit. Nine researchers, eight agribusiness personnel and 22 beef business owners/managers representing all country types across northern Australia then applied this model to rank 23 management interventions. Those ranked highest for research by this panel were improving phosphorus supplementation, improving calf husbandry, reducing paddock size, enhancing mothering, improving nutritional management of pregnant yearlings to reduce dystocia, and controlling infectious diseases. Using the output from this project a budget was generated to progress appropriate activities to evaluate the impact of priority interventions on the occurrence of calf wastage and business performance.