Objective To investigate the mixed densities and activity patterns of mosquitoes in three different types of pig farms in the central and western parts of Hainan province, China, and construct the basic data of mosquito activity in pig farms, and to provide a reference for scientific control and prevention of mosquitoes. Methods Mosquitoes were monitored by the lamp trap method, animal-bait net trap method, and pig sty landing mosquito collection method. Excel 2010 software and SPSS 26 software were used to process the number of mosquitoes to analyze the seasonal fluctuations of mosquitoes in different types of pig farms, the diurnal and nocturnal activity pattern of mosquitoes in the farmer’s backyard pig sty, and the landing index of mosquitoes in the traditional pig farm. The Pearson’s chi-squared test was used to compare mosquito composition between different types of pig farms. Results The annual average density of mosquitoes was (4.79±4.32) mosquitoes/lamp·hour in the farmer’s backyard pig sty, (15.31±16.51) mosquitoes/lamp·hour in the traditional pig farm, and (15.16±11.20) mosquitoes/lamp·hour in the modern pig farm. The mosquitoes mainly involved 5 species of 5 genera in any of the three pig farms. Culex tritaeniorhynchus was the dominant species in all the three pig farms, with the composition ratios of 70.33%, 89.64%, and 93.95%, respectively. There was a statistical difference in the proportion of the major mosquito species between the three pig farms (χ2=8 410.560, P<0.001). The seasonal fluctuation of mosquitoes differed between the three farms, presenting as a single-peak pattern, a wavy pattern, and a double-peak pattern, respectively, with the activity of mosquitoes peaked in October, November, and July and September, respectively. In the farmer’s backyard pig sty, mosquitoes showed a diurnal-nocturnal activity pattern of double peaks in the morning and evening. The average landing index of mosquitoes reached up to (154.50±30.71) mosquitoes/pig·hour in the traditional pig farm. Conclusion All the three types of pig farms have relatively high mosquito densities. They have distinct compositions of major mosquito species and seasonal fluctuations of mosquitoes. Mosquito prevention and control should be carried out scientifically according to the mosquito activity pattern of the pig farm.
[1] 何昌华,赵伟,王善青,等. 海南省城区2012年蚊虫密度及季节消长分析[J]. 中国媒介生物学及控制杂志,2014,25(1):15-17. DOI:10.11853/j.issn.1003.4692.2014.01.004.He CH,Zhao W,Wang SQ,et al. Analysis of mosquito density and seasonality in urban areas of Hainan province,China in 2012[J]. Chin J Vector Biol Control,2014,25(1):15-17. DOI:10.11853/j.issn.1003.4692.2014.01.004.
[2] 杜明珍,杨启明. 夏季猪场蚊虫的防治措施[J]. 中国畜禽种业,2012,8(11):103-104.Du MZ,Yang QM. Mosquito control measures on pig farms in summer[J]. Chin Livest Poult Breed,2012,8(11):103-104.
[3] 林太明,李圣元. 猪流行性乙型脑炎及防治[J]. 畜禽业,2008(9):81-82. DOI:10.3969/j.issn.1008-0414.2008.09.050.Lin TM,Li SY. Porcine epidemic Japanese encephalitis and its control[J]. Livest Poult Indus,2008(9):81-82. DOI:10.3969/j.issn.1008-0414.2008.09.050.
[4] 石宏伟,王海龙. 猪流行性乙型脑炎的诊断与防控[J]. 今日畜牧兽医,2020,36(5):24. DOI:10.3969/j.issn.1673-4092.2020. 05.019.Shi HW,Wang HL. Diagnosis and control of porcine epidemic Japanese encephalitis[J]. Today Anim Husbandry Vet Med,2020,36(5):24. DOI:10.3969/j.issn.1673-4092.2020.05.019.
[5] 任灵肖,董壮丽,梁剑峰,等. 猪场防控附红细胞体效果分析[J]. 北方牧业,2018(15):21.Ren LX,Dong ZL,Liang JF,et al. Analysis on the effect of preventing and controlling eperythropoiesis in pig farm[J]. J North Anim Husbandry,2018(15):21.
[6] 何子双,王怀禹,李彩虹. 蚊虫叮咬引起公猪睾丸炎[J]. 中国兽医杂志,2020,56(5):51-52.He ZS,Wang HY,Li CH. Mosquito bites cause boar orchitis[J]. Chin J Vet Med,2020,56(5):51-52.
[7] 罗生. 一例猪乙型脑炎病的诊断与防治[J]. 中国动物保健,2014,16(2):61-62. DOI:10.3969/j.issn.1008-4754.2014.02.026.Luo S. Diagnosis and treatment of a case of Japanese encephalitis in pigs[J]. China Anim Health,2014,16(2):61-62. DOI:10.3969/j.issn.1008-4754.2014.02.026.
[8] 刘青林. 现代化猪场建设关键环节分析[J]. 饲料与畜牧:规模养猪,2012(5):55-56.Liu QL. Analysis on key links of modern pig farm construction[J]. Forage Livest:Intens Pig Prod,2012(5):55-56.
[9] 佚名. 罗牛山十万头现代化猪场建成投产[J]. 中国畜牧业,2016(10):28.Yi M. Luoniushan 100000 head of modern pig farm completed and put into operation[J]. China Anim Indus,2016(10):28.
[10] 兰坚强,任晓露,廖承红,等. 伊维菌素和乙基多杀菌素对埃及伊蚊作用研究[J]. 中国兽医杂志,2016,52(12):7-9,13.Lan JQ,Ren XL,Liao CH,et al. Effects of ivermectin and spinetoram on the yellow fever mosquitoes,Aedes aegypti[J]. Chin J Vet Med,2016,52(12):7-9,13.
[11] Lan JQ,Wang ZH,Chen ZH,et al. Identification of the Aedes aegypti nAChR gene family and molecular target of spinosad[J]. Pest Manag Sci,2021,77(4):1633-1641. DOI:10.1002/ps.6183.
[12] Lan JQ,Zhao HW,Jin XT,et al. Development of a monoclonal antibody-based immunoaffinity chromatography and a sensitive immunoassay for detection of spinosyn A in milk,fruits,and vegetables[J]. Food Control,2019,95:196-205. DOI:10.1016/j.foodcont.2018.08.002.
[13] 姜义霖,宋锋林,李宁,等. 大连市蚊媒调查及淡色库蚊、三带喙库蚊自然感染流行性乙型脑炎病毒研究[J]. 预防医学论坛,2008,14(6):485-489. DOI:10.3969/j.issn.1672-9153.2008. 06.002.Jiang YL,Song FL,Li N,et al. Investigation on mosquitoes and study on natural infection of the encephalitis B virus of Culex pipiens pallens and Cx. tritaeniorhynchus in Dalian[J]. Prev Med Tribune,2008,14(6):485-489. DOI:10.3969/j.issn.1672-9153. 2008.06.002.
[14] 李来德,梁健华,甄健斌,等. 2014年新会区城区蚊种群密度及季节消长的研究[J]. 中国当代医药,2015,22(19):161-163.Li LD,Liang JH,Zhen JB,et al. Study of population density and seasonal fluctuation of mosquito in urban area of Xinhui district in 2014[J]. China Modern Med,2015,22(19):161-163.
[15] 李美娣,翁亚彪,谭志坚,等. 集约化猪场成蚊种群构成调查初报[J]. 养猪,2007(5):32. DOI:10.3969/j.issn.1002-1957. 2007.05.014.Li MD,Weng YB,Tan ZJ,et al. A preliminary report on the population composition of adult mosquitoes in intensive pig farms[J]. Swine Prod,2007(5):32. DOI:10.3969/j.issn.1002-1957. 2007.05.014.
[16] 李飞龙,黄淑坚,王洁希,等. 广州从化良口镇5个猪场蚊媒介调查[J]. 国外畜牧学(猪与禽),2019,39(4):68-72. DOI:10.3969/j.issn.1001-0769.2019.04.025.Li FL,Huang SJ,Wang JX,et al. Investigation of mosquito vectors in 5 pig farms in Conghua Liangkou town,Guangzhou[J]. Anim Sci Abroad (Pigs Poult),2019,39(4):68-72. DOI:10. 3969/j.issn.1001-0769.2019.04.025.
[17] 闫秀娟,赵伟,曾祥洁,等. 海南省西南部地区流行性乙型脑炎媒介三带喙库蚊季节消长与宿主动物感染状况调查[J]. 中国媒介生物学及控制杂志,2008,19(5):470-471. DOI:10.3969/j.issn.1003-4692.2008.05.027.Yan XJ,Zhao W,Zeng XJ,et al. Investigation on the seasonal fluctuation and host animal infection of the Japanese encephalitis vector Culex tritaeniorhynchus in the southwest of Hainan province[J]. Chin J Vector Biol Control,2008,19(5):470-471. DOI:10.3969/j.issn.1003-4692.2008.05.027.
[18] Wilke ABB,Medeiros-Sousa AR,Ceretti-Junior W,et al. Mosquito populations dynamics associated with climate variations[J]. Acta Tropica,2016,166:343-350. DOI:10.1016/j.actatropica. 2016.10.025.
[19] Li RY,Xu L,Bjørnstad ON,et al. Climate-driven variation in mosquito density predicts the spatiotemporal dynamics of dengue[J]. Proc Natl Acad Sci USA,2019,116(9):3624-3629. DOI:10.1073/pnas.1806094116.
[20] 于德宪,林立丰,罗雷,等. 广州市蚊虫密度与气候因素的相关性[J]. 解放军预防医学杂志,2010,28(5):330-333. DOI:10.13704/j.cnki.jyyx.2010.05.006.Yu DX,Lin LF,Luo L,et al. Correlation between mosquito density and climatic factors in Guangzhou[J]. J Prev Med Chin PLA,2010,28(5):330-333. DOI:10.13704/j.cnki.jyyx.2010. 05.006.
[21] 陆年宏,吕兴标,夏红军,等. 东南沿海某演习区域蚊虫生态习性及危害调查[J]. 中国媒介生物学及控制杂志,2012,23(3):249-251.Lu NH,Lyu XB,Xia HJ,et al. Investigation into the ecological habits of mosquitoes and their hazards in a military maneuver field in Southeast China[J]. Chin J Vector Biol Control,2012,23(3):249-251.
