Screening and Epidemiology of Parasitic Diseases in Beef Cattle in Xundian County
In order to fulfill the responsibilities of the Beef Cattle Science and Technology Mission in Xundian county,assist in the establishment of the"one county,one industry"beef cattle industry demonstration county in Xundian County,create a world-class"green food brand",and promote the high-quality development of plateau characteristic agriculture,members of the Xundian County Beef Cattle Science and Technology Mission in Yunnan Province from 2021 to 2022 collected 654 fecal samples and 899 whole blood samples from 16 townships,29 beef cattle farms(households),1 beef cattle trading market,and 1 slaughterhouse in Xundian County for screening of beef cattle parasites.The results showed that 12 out of 899 whole blood samples from 29 farms were positive for Babesia,with a positive rate of 1.33%.There were 5 positive farms,with a positive rate of 17.24%.654 fecal samples were screened from 31 testing sites,and 5 types of parasite eggs and egg cysts were detected,including nematodes,trematodes,coccidia,tapeworms,and mites.The total number of parasites was 176,with an average infection rate of 26.91%,including 55 coccidia,with the highest infection rate of 8.43%;47 trematodes,with an infection rate of 7.68%;30 taeniasis,with an infection rate of 4.60%;32 nematodes,with an infection rate of 4.91%;and 12 mites,with an infection rate of 1.83%.There were 44 mixed infections,accounting for 0.25%of the total infection cases.There are 27 positive fields,with an overall positive rate of 87.10%,among which the positive rate of the trematodes was 58.06%;the positive rate of coccidia was 51.61%;nematodes was 48.38%;apeworms was 38.71%,and mites was 25.80%.The highest infection rate was in the market segment,with a rate of38.33%(23/60),followed by the breeding segment,with a rate of 26.31%(151/574),and the slaughter segment,with a rate of 10%(2/20).Some townships had high infection rates;grazing cattle and calves had high-er infection rates.The results of this survey provide a scientific reference for the prevention and control of beef cat-tle parasites in Xundian County,guiding farmers to standardize management,develop scientific deworming proce-dures,strengthen environmental disinfection and other prevention and control measures,effectively improve breed-ing efficiency and beef cattle product quality,and contribute veterinary power to the creation of a"green food brand"for Xundian beef cattle.
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