Coccidiosis is a disease caused by protozoa of the genus Eimeria which seriously affects young rabbits. Treatment based on the use of anticoccidial drugs is increasingly ineffective due to the rapid emergence of resis...Coccidiosis is a disease caused by protozoa of the genus Eimeria which seriously affects young rabbits. Treatment based on the use of anticoccidial drugs is increasingly ineffective due to the rapid emergence of resistant strains of coccidia and the high cost of drugs. Consumer demand for rabbit products without chemical residues led to a growing interest in the use of medicinal plants as an alternative treatment for coccidiosis. The present study was carried out during the period of August to December 2020 to assess the anticoccidial effect of hydro-ethanolic extract of leaves of Artemisia annua L., in young rabbits. The antiparasitic efficacy of Artemisia extract was tested on 15 young rabbits (whose age varied between 7 and 9 weeks) divided into 5 lots of 3 animals. The average weight of these animals was 790 g. The results of this study show that the feces samples and the weight of young rabbits before administration of the treatment and the coprological examination (every 7 days for 4 weeks) show a fecal excretion reduction rate (FECRT) of 55.13% in the lot treated by sulfonamide. On the other hand, in animals received treatments extract of the leaves of Artemisia annua L., the average FECRT is evaluated at 69.64%, 79.22%, and 96.36% for respective doses of 400, 800 and 1200 mg/kg bodyweight and proves their anticoccidial effect. Furthermore, the variation in mean Eggs Per Gram (EPG) of coccidia and the average weekly weight gain (AWWG) of each lot were significant in the lots treated with hydro-ethanolic extract (P 0.05). The greatest reductions in oocystal excretion and weight gain obtained were those of lot 5, treated at 1200 mg/kg of hydro-ethanolic leaves extract of Artemisia annua L.展开更多
【目的】掌握渝西地区兔球虫病的流行情况和兔球虫种类,为该地区兔球虫病的防治提供依据。【方法】采用饱和食盐水漂浮法和麦克马斯特氏计数法检测渝西荣昌、永川、大足等8个区14个兔场共1273份粪样本,并收集卵囊,鉴定兔球虫种类。【结...【目的】掌握渝西地区兔球虫病的流行情况和兔球虫种类,为该地区兔球虫病的防治提供依据。【方法】采用饱和食盐水漂浮法和麦克马斯特氏计数法检测渝西荣昌、永川、大足等8个区14个兔场共1273份粪样本,并收集卵囊,鉴定兔球虫种类。【结果】发现14个兔场均有感染球虫,平均感染率为90.65%,璧山和江津的感染率最高,为100%,2月龄以下兔感染率极显著高于2~4月龄、4~9月龄及9月龄以上年龄段兔,感染率为98.19%。小型养殖场兔球虫感染率极显著低于大型规模化养殖场,感染率为86.53%。8个区的克粪便虫卵数(Oocysts Per Gram,OPG)为9.65×10^(3)~6.56×10^(4),其中2~4月龄OPG最高、为6.31×10^(4)。对药物使用情况调查显示,未使用球虫药养殖场的感染率为92.31%,OPG为4.42×10^(4);使用球虫药养殖场的感染率为89.19%,OPG为2.75×10^(4)。在14个兔场共鉴定了10种艾美耳球虫,其中优势虫种为穿孔艾美耳球虫(Eimeria perforans)、大型艾美耳球虫(E.magna)、盲肠艾美耳球虫(E.coecicola)和中型艾美耳球虫(E.media),检出率分别为25.20%、23.38%、11.96%、10.02%。【结论】渝西地区普遍感染兔球虫,且多为混合感染,因此应加强该地区兔球虫病的防治。展开更多
文摘Coccidiosis is a disease caused by protozoa of the genus Eimeria which seriously affects young rabbits. Treatment based on the use of anticoccidial drugs is increasingly ineffective due to the rapid emergence of resistant strains of coccidia and the high cost of drugs. Consumer demand for rabbit products without chemical residues led to a growing interest in the use of medicinal plants as an alternative treatment for coccidiosis. The present study was carried out during the period of August to December 2020 to assess the anticoccidial effect of hydro-ethanolic extract of leaves of Artemisia annua L., in young rabbits. The antiparasitic efficacy of Artemisia extract was tested on 15 young rabbits (whose age varied between 7 and 9 weeks) divided into 5 lots of 3 animals. The average weight of these animals was 790 g. The results of this study show that the feces samples and the weight of young rabbits before administration of the treatment and the coprological examination (every 7 days for 4 weeks) show a fecal excretion reduction rate (FECRT) of 55.13% in the lot treated by sulfonamide. On the other hand, in animals received treatments extract of the leaves of Artemisia annua L., the average FECRT is evaluated at 69.64%, 79.22%, and 96.36% for respective doses of 400, 800 and 1200 mg/kg bodyweight and proves their anticoccidial effect. Furthermore, the variation in mean Eggs Per Gram (EPG) of coccidia and the average weekly weight gain (AWWG) of each lot were significant in the lots treated with hydro-ethanolic extract (P 0.05). The greatest reductions in oocystal excretion and weight gain obtained were those of lot 5, treated at 1200 mg/kg of hydro-ethanolic leaves extract of Artemisia annua L.
文摘【目的】掌握渝西地区兔球虫病的流行情况和兔球虫种类,为该地区兔球虫病的防治提供依据。【方法】采用饱和食盐水漂浮法和麦克马斯特氏计数法检测渝西荣昌、永川、大足等8个区14个兔场共1273份粪样本,并收集卵囊,鉴定兔球虫种类。【结果】发现14个兔场均有感染球虫,平均感染率为90.65%,璧山和江津的感染率最高,为100%,2月龄以下兔感染率极显著高于2~4月龄、4~9月龄及9月龄以上年龄段兔,感染率为98.19%。小型养殖场兔球虫感染率极显著低于大型规模化养殖场,感染率为86.53%。8个区的克粪便虫卵数(Oocysts Per Gram,OPG)为9.65×10^(3)~6.56×10^(4),其中2~4月龄OPG最高、为6.31×10^(4)。对药物使用情况调查显示,未使用球虫药养殖场的感染率为92.31%,OPG为4.42×10^(4);使用球虫药养殖场的感染率为89.19%,OPG为2.75×10^(4)。在14个兔场共鉴定了10种艾美耳球虫,其中优势虫种为穿孔艾美耳球虫(Eimeria perforans)、大型艾美耳球虫(E.magna)、盲肠艾美耳球虫(E.coecicola)和中型艾美耳球虫(E.media),检出率分别为25.20%、23.38%、11.96%、10.02%。【结论】渝西地区普遍感染兔球虫,且多为混合感染,因此应加强该地区兔球虫病的防治。
