Epidemiological Investigation Of Sheep Gastrointestinal Nematodes In The Part Area Of HuLunBeiEr

HuLunBeiEr City One of the main livestock industry city is the Inner Mongolia autonomous region, Mongolian sheep is the main part of the local livestock breeds. Mongolian sheep is the largest number in China、The most widespread of coarse wool sheep varieties, origin MongolianPlateau, It has the strong life force, suitable for migration and nomadic, cold-resistant,drought-enduring,Long long fat and meat etc.Because of the delayed preventive measures of parasitic diseases, the livestock performance and the yield and quality of livestock products had been lowered.The investigation to understand that HuLunBeiEr City The prevalence of major natural grazing sheep of sheep Nematode disease, that provide scientific basis for prevention and control of local sheep parasitic disease,This experiment in 2013 December to 2014 December, examined with the fecal examination method、Larval culture to Species in HuLunBeiEr City main breeding area of 200 sheep digestive worm,The epidemic situation current status、Sheep body parasitic disease infection degree as well as the popular seasonal dynamics is studied.The results showed that,This study detected 15 kinds of helminth eggs,Among the 8 nematode,as Haemonchus contortus、Oesophagostomum、Trichostrongylus、 Strongyloides papillosus、Ostertagia、 Nematodirus、Bunostomum、Trichuris vulpis;species preponderance were Haemonchus contortus、 Oesophagostomum、Trichostrongylus、Strongyloides papillosus。Fluke eggs 2 Fasciola hepatica、 Paramphistomum cervi。species ofcoccidia eggs 5,E.ahsata、E.gonzalezi、E.crandallis、E.faurei、 E.ovinoidalis.Adult sheep gastrointestinal nematodes eggs in addition to the discharging quantity Ostertagia in May appear an obvious peak,That is the spring high tide,In August and a smaller peak occurs, That is the Autumn high tide,Other times a year,nematode Egg output were all very low.The lambs faeces seized eggs the earliest time was 6 month,Within a Year of egg excretion in Augustonly appeared a peak.Sheep gastrointestinal nematode in April eggs to restore the development, In October to stop development,The earliest seized pasture of larval time is early June.And were generally characterized by mixed infection.According to the popular rule of local parasitic disease.According to the survey, HuLunBeiEr City, the town of Tara and Evenk Autonomous Banner The higher rate of two pastures sheep gastrointestinal nematode eggs infections quite high, According to the popular rule of local parasitic disease, Strength was larger, In the aspect of insect repellent, Could take two preventive insect repellent way throughout the year:The first time in late April before into the pasture grazing, The parasites in sheep drive off, The sheep in the parasites drive away, Prevent spring pastures climax and reduce infective larvae; The second is inferior to late September before back to the barn, To ward off or kill sheep body of insect body.