[绵羊和山羊体内线虫病的发生情况]

[Occurrence of nematodiasis among sheep and goats].

作者信息

Zurliĭski P

出版信息

Vet Med Nauki. 1977;14(5):73-9.

Abstract

The spread was studied of sheep and goat nematodirosis in the conditions prevailing in the district of Varna for the 1973-1975 period. Füleborn's method was employed with a total of 24,909 coprosamples taken from the animals as follows: sheep--12,690, weaned lambs--7370, lambs--3355, kids--782, and goats--712. Partial helminthologic postmortem examinations were carried out by the digestive method of 104 sheep, 33 goats, 142 weaned lambs, 96 lambs, and 35 kids. The percent of infected animals was determined on the basis of the coprostudies as follows; lambs--20.9 (per cent), kids--26.6, weaned lambs--54.9, sheep--22.6, goats--24.8. The necroscopic investigations revealed 32.3, 40, 64.8, 32.5, 39.4 per cent, respectively. The average parasite burden in number of helminths was 313 (lambs), 85 (kids), 1517 (weaned lambs), 586 (sheep), and goats--290. Greatest number of Nematodirus parasites was found in weaned lambs--16,000, followed by sheep--2260, lambs--1840, goats--800, and kids--240. As many as 100 per cent Nematodirus carriers were found on a sheep farm in the district. It was also found that the north plains of the district are less infected as against the south parts embracing the northern slopes of the Balkan mountain, and along the course of the Kamchia river. It was found that sheep on the private farm-holdings were more strongly infected than those on the cooperative farms. On the other hand, it was established that on farms where lambs and weaned lambs graze together with the adults the former prove more strongly infected than those that are on isolated grasslands.

摘要

对1973 - 1975年瓦尔纳地区流行条件下绵羊和山羊线虫病的传播情况进行了研究。采用富勒本氏方法，共采集了24909份动物粪便样本，具体如下：绵羊——12690份，断奶羔羊——7370份，羔羊——3355份，幼山羊——782份，山羊——712份。通过消化法对104只绵羊、33只山羊、142只断奶羔羊、96只羔羊和35只幼山羊进行了部分寄生虫学尸检。根据粪便研究确定的感染动物百分比如下：羔羊——20.9%，幼山羊——26.6%，断奶羔羊——54.9%，绵羊——22.6%，山羊——24.8%。尸检调查分别显示为32.3%、40%、64.8%、32.5%、39.4%。寄生虫平均感染数量为：羔羊313条，幼山羊85条，断奶羔羊1517条，绵羊586条，山羊290条。断奶羔羊体内发现的细颈线虫寄生虫数量最多——16000条，其次是绵羊——2260条，羔羊——1840条，山羊——800条，幼山羊——240条。在该地区的一个绵羊养殖场发现了100%的细颈线虫携带者。还发现该地区北部平原的感染程度低于包括巴尔干山脉北坡和卡姆奇亚河沿岸在内的南部地区。发现个体农户饲养的绵羊比集体农场的绵羊感染更严重。另一方面，已确定在羔羊和断奶羔羊与成年羊一起放牧的农场，前者的感染程度比在隔离草地上放牧的羔羊更严重。