tailieunhanh - Nghiên cứu khoa học nông nghiệp " Diagnosis and control of diarrhea in suckling pigs (CARD project 1) A Blueprint for Sustainable Small-Holder Pig Production in Central Vietnam (CARD project 2) "

Hợp tác nghiên cứu của các nhà khoa học Việt Nam và Úc vào nguyên nhân gây tiêu chảy heo con theo mẹ tại Việt Nam đã dẫn đến sự phát triển của một loại vắc-xin sản xuất trong nước Viện Nghiên cứu Thú y Quốc gia (NIVR) để kiểm soát Escherichia coli lùng sục (hình 1). Tiếp tục đánh giá của các trang trại quy mô nhỏ ở miền Trung Việt Nam các nhà khoa học tại Viện Chăn nuôi Quốc gia và Đại học Huế của Nông nghiệp và Lâm nghiệp đã xác định rằng E. coli là một trong nhiều đóng góp yếu. | Diagnosis and control of diarrhea in suckling pigs CARD project 1 A Blueprint for Sustainable Small-Holder Pig Production in Central Vietnam CARD project 2 Joint research by Vietnamese and Australian scientists into the cause of diarrhoea in suckling piglets in Vietnam has led to the development of a locally produced vaccine by the National Institute of Veterinary Research NIVR to control Escherichia coli scours Figure 1 . Further assessment of smallholder farms in Central Vietnam by scientists at the National Institute of Animal Husbandry and Hue University of Agriculture and Forestry has identified that E. coli was just one of many contributing factors to reduced productivity. A survey of several hundred farms extensive training of Vietnamese scientists and joint collaboration has led to a more holistic approach to farmer assistance encompassing housing nutrition breeding and medical interventions. Results on trial farms are encouraging with the first litters born from recently introduced improved Mong Cai breeding stock in November 2007 Figure 2 . A thorough knowledge of the geographical and epidemiological features of the targeted areas has allowed project staff to assist farmers in making changes appropriate to their individual conditions. For example improved elevated housing was established in flood-prone areas Figure 3 and where farms do not use pig effluent for fertilization of crops or for aquaculture biogas systems have been introduced to convert waste into fuel for household use. Creep boxes designed specifically to reduce preweaning mortality have also been introduced to allow preferential heating of piglets whilst maintaining sows in a cooler microclimate as sows are susceptible to overheating in Vietnam s tropical climate Figure 4 . In December 2007 a third year Veterinary Science student at The University of Queensland Ms Tarni Cooper traveled to Vietnam to volunteer on the project for eight weeks. Tarni was based at the Hue University of .