Ong Song-Quan, Ab Majid Abdul Hafiz, Ahmad Hamdan
Household & Structural Urban Entomology Laboratory, Vector Control Research Unit, School of Biological Sciences, Universiti Sains Malaysia, 11800 USM Pulau Pinang, Malaysia.
Trop Life Sci Res. 2017 Jul;28(2):45-55. doi: 10.21315/tlsr2017.28.2.4. Epub 2017 Jul 31.
In this study, bifenthrin (Maxxthor SC, Ensystex Australasia Pty Ltd), imidacloprid (Prothor SC, Ensystex Australasia Pty Ltd) and fipronil (Regent50SC, Bayer) were applied on the natural infest manures according to the manufacturer rate during a broiler breeding cycle. Solvent direct-immersion extraction (SDIE) was used in detecting the target compound and later, quantification of the insecticide residues in field condition was investigated. The samples were prior cleaned up by solid-phase extraction (SPE) and analysed by Ultra-Performance Liquid Chromatography (UPLC) - photodiode array (PDA) system. In the field trial, three insecticides were showed accumulation during the broiler breeding period and it is suggested that they acted as adulticides when applied on the poultry manures, this is supported by the significant correlation between the increment of insecticide residues to the reduction percentage of adult flies (<0.05). Fipronil showed significantly greater reduction on the adult fly compared to the other insecticides, in which the reduction rate compared to control population at the end of the broiler breeding period; fipronil, imidaclopril and bifenthrin reduced 51.51%, 28.30% and 30.84% of adult flies, respectively.
在本研究中，在一个肉鸡养殖周期内，按照制造商推荐剂量，将联苯菊酯（Maxxthor SC，Ensystex Australasia Pty Ltd公司）、吡虫啉（Prothor SC，Ensystex Australasia Pty Ltd公司）和氟虫腈（Regent50SC，拜耳公司）施用于自然感染的粪便上。采用溶剂直接浸提萃取法（SDIE）检测目标化合物，随后研究田间条件下杀虫剂残留的定量分析。样品先通过固相萃取（SPE）进行净化，然后采用超高效液相色谱（UPLC）-光电二极管阵列（PDA）系统进行分析。在田间试验中，三种杀虫剂在肉鸡养殖期间均有累积，并且表明当施用于家禽粪便时它们起到了杀成虫剂的作用，这一点得到了杀虫剂残留增量与成虫苍蝇减少百分比之间显著相关性（<0.05）的支持。与其他杀虫剂相比，氟虫腈对成虫苍蝇的减少效果显著更大，在肉鸡养殖期末与对照种群相比的减少率；氟虫腈、吡虫啉和联苯菊酯分别减少了51.51%、28.30%和30.84%的成虫苍蝇。
