tailieunhanh - Summary of Phd. dissertation in veterinary: Study on blackhead disease characteristics caused by Histomonas meleagridis protozoan in raising chickens in Thai Nguyen, Bac Giang provinces and recommendation for prevention and treatment measures

Objective of the dissertation: Evaluation on epidemiologic and pathological characteristics and measures of disease prevention caused by Histomonas meleagridis in raising chickens in two provinces Thai Nguyen and Bac Giang, contribute to improving the chickens husbandry productivity in areas. | MINISTRY OF EDUCATION AND TRAINING THAI NGUYEN UNIVERSITY TRUONG THI TINH STUDY ON BLACKHEAD DISEASE CAUSED BY HISTOMONAS MELEAGRIDIS PROTOZOAN IN CHICKENS IN THAI NGUYEN BAC GIANG AND PREVENTION -TREATMENT MEASURES Speciality Veterinary parasitology and microbiology Code 62. 64. 01. 04 SUMMARY OF PhD. DISSERTATION IN VETERINARY THAI NGUYEN - 2016 THE DISSERTATION WAS COMPLETED AT COLLEGE OF AGRICULTURE AND FORESTRY THAI NGUYEN UNIVERSITY Scientific supervisors 1. Prof. NGUYEN THI KIM LAN PhD. 2. Assoc. Prof. LE VAN NAM PhD. Reviewer 1 . Reviewer 2 . Reviewer 3 . The dissertation will be defended at the Dissertation committee in National level COLLEGE OF AGRICULTURE AND FORESTRY - TNU 2016 The dissertation can be found at - National Library - Learning Resource Center - Thai Nguyen University - Library of College of agriculture and forestry - TNU. 1 INTRODUCTION 1. Urgency of the dissertation Blackhead disease Histomonosis in a dangerous parasite protozoan in poultries especially chickens and turkeys. This disease is caused by anaerobic protozoan parasite which its science name is Histomonas meleagridis. Diseased poultries are depression reduced appetite Sulphur-yellow diarrhea skin of head becomes pale or cyanotic ceca and liver is swollen caseous cores with white and liver appears gangrene sports as Chrysanthemum . Diseased chickens were died if they are not treated immediately the mortality may be 85 - 95 . Histomonosis is detected in backyard chickens at some of provinces of the North from March 2010 Lê Văn Năm 2010 . Recently this disease occurs in provinces cities over the country. The disease is out breaking in Thai Nguyen and Bac Giang provinces cause huge damages about economy for farmers. Hence in Viet Nam there are not yet dissertation discovering about blackhead disease in chickens there are not effective treatment and prevention process. In order to make contribution to controlling disease improve productivity of raising chickens we