| Title: | An efficient high-welfare feeding device for assessing northern fowl mite interventions in vivo: an improved method for the identification of protective antigens/systemic acaricides/repellent effect |
| Author(s): | Bhowmick B; Lin F; Zhao J; Guan Q; Liao C; Han Q; |
| Address: | "Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life and Pharmaceutical Sciences, Hainan University, Haikou, Hainan 570228, China. Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life and Pharmaceutical Sciences, Hainan University, Haikou, Hainan 570228, China. Electronic address: qianhan@hainanu.edu.cn" |
| DOI: | 10.1016/j.vetpar.2020.109279 |
| ISSN/ISBN: | 1873-2550 (Electronic) 0304-4017 (Linking) |
| Abstract: | "The northern fowl mite (NFM), Ornithonyssus sylviarum, is an obligate hematophagous ectoparasite of domestic and wild birds, and it is an economic pest of laying hen in North America, China, India, Australia, Myanmar, and Brazil. Such an economically important pest remains neglected in many parts of the world, including Asian countries. Therefore, concerted action is required in both basic and applied research directed at the biology and control of this destructive pest. In the present study, we have developed a novel, high-welfare in vivo feeding capsule that would permit pre-screening of new interventions, repellency and deterrence effects of plant-derived products and other semiochemical compounds before proceeding to large-scale field experiments/bioassays, while the minimum number of animals is required to obtain results. Mites were fed on the birds through either a mesh or without a mesh. The average feeding rates of mites was significantly higher when fed directly on chickens, whereas 106?ª+mum nylon mesh was the top-performing mesh when compared with 125?ª+mum aperture nylon mesh. For optimal feeding, the feeding capsules contain NFM and are attached to the skin of the chicken's thigh for 6?ª+h. This is a simple, reproducible, and easy approach and can be adapted to facilitate many aspects of bioassays" |
| Keywords: | Acaricides/*pharmacology Animal Husbandry/instrumentation/*methods *Animal Welfare Animals *Chickens Female Mite Infestations/parasitology/prevention & control/*veterinary Mites/*drug effects/growth & development Nymph/drug effects/growth & development Po; |
| Notes: | "MedlineBhowmick, Biswajit Lin, Fang Zhao, Jianguo Guan, Qingfeng Liao, Chenghong Han, Qian eng Netherlands 2020/11/01 Vet Parasitol. 2020 Dec; 288:109279. doi: 10.1016/j.vetpar.2020.109279. Epub 2020 Oct 23" |
