Mục tiêu của bài viết nhằm đánh giá hiệu quả diệt mạt của sản phẩm Exzolt (thành phần chính là fluralaner) và đồng thời giúp cải thiện phúc lợi trên gà mái đẻ. Tiến hành theo dõi và ghi nhận các chỉ tiêu về năng suất chăn nuôi, đánh giá mức độ nhiễm mạt, số lượng trứng có chấm đỏ, các biểu hiện về tập tính của gà mái trước và sau khi sử dụng thuốc Exzolt bằng việc quan sát qua camera. Mời các bạn cùng tham khảo! | Trường Đại học Nông Lâm TP. Hồ Chí Minh 31 Efficacy of fluralaner in drinking water in controlling mite and improving welfare in laying hens Dung T. Nguyen1 Ha H. Truong1 Nguyen T. N. Nguyen2 Nam T. T. Nguyen1 amp Hien T. Le1 1 Faculty of Animal Science and Veterinary Medicine Nong Lam University Ho Chi Minh City Vietnam 2 MSD Animal Health Vietnam ARTICLE INFO ABSTRACT Research Paper The objective of the experiment was to evaluate the effectiveness of Exzolt contaning fluralaner to control mite and improve behavior relating to welfare in layers. Monitoring and recording indicators of Received December 25 2020 livestock productivity level of mite infection number of eggs with Revised February 05 2021 red dots and behavior of hens before and after using Exzolt were Accepted February 22 2021 performed. 4 cameras to monitor hens behavior from 18 pm of the previous night to 6 am of the following morning were installed Keywords to record the layer s behavioral indicators caused by the mite including number of shakes wing flaps scratches preening bites Behavior pecking aggressive before and after using Exzolt. As a result Chicken the studied farm was heavily infected with mites with an average Exzolt infection level of on a scale of 0 - 2. After the treatment with fluralaner Exzolt the farm became totally free of the mites in layers for Mites many weeks thereafter. The use of Exzolt did not affect daily feed intake mortality. The proportion of eggs with red spots decreased Corresponding author significantly. Especially the layer s behavioral expression causing annoying was significantly reduced after using Exzolt. This is the reason for good recommendation to use this product to control Le Thanh Hien mite for layer farm. Email Cited as Nguyen D. T. Truong H. H. Nguyen N. T. N. Nguyen N. T. T. amp Le H. T. 2021 . Efficacy of fluralaner in drinking water in controlling mite and improving welfare in laying hens. The Journal of Agriculture .
