Abstract:
The present study was carried out to isolate and identify various species of Eimeria and to study overall prevalence of coccidiosis in central Kashmir (Srinagar, Ganderbal and Budgam). A total of 45 outbreaks, 15 from each district, of coccidiosis in chicken were recorded over the period of two years. A total of 15, 15, 10 and 5 outbreaks were recorded in chicken of 2-3, 3-4, 4-5 weeks of age and layers, respectively. The overall mortality in the flocks was 2.6%, with the highest mortality of 3.2% recorded in the age group of 3-4 weeks. An overall prevalence of coccidiosis among the total necropsies was 10.63%. A total of seven different species of Eimeria were identified in broilers and layers namely E. tenella, E. acervulina, E. maxima, E. necatrix, E. mitis, E. praecox and E. brunetti. Among these species, E. tenella (39.7%) was recorded with highest and E. brunetti (3.1%) with lowest prevalence in broilers, whereas, in case of layers E. necatrix (27.7%) recorded highest and E. mitis, E. praecox and E. brunetti (2.7%) recorded the lowest prevalence. Morphometrically, oocyst of Eimeria maxima (30.4 × 20.8 μm) and Eimeria mitis (16.21 × 16.0 μm) exhibited the largest and smallest sizes, respectively. Most of the Eimeria species had a sporulation time of 18 h with highest in Eimeria maxima (30 h) and lowest in E. praecox (12 h).
摘要:
进行本研究是为了分离和鉴定各种艾美球虫,并研究克什米尔中部球虫病的总体患病率(斯利那加,Ganderbal和Budgam)。共发生了45起疫情,每个区15个,鸡的球虫病记录在两年内。在2-3,3-4,4-5周龄和蛋鸡中,共记录了15,15,10和5次爆发,分别。羊群的总死亡率为2.6%,3-4周年龄组的最高死亡率为3.2%。在整个尸检中,球虫病的总体患病率为10.63%。在肉鸡和蛋鸡中总共鉴定出7种不同的艾美球虫,即E.tenella,E.Acervulina,E.最大值,E.坏死因子,E.米蒂斯,E.praecox和E.brunetti。在这些物种中,在肉鸡中,E.tenella(39.7%)的患病率最高,E.brunetti(3.1%)的患病率最低,然而,在E.necatrix(27.7%)层记录最高,E.mitis层记录最高,E.praecox和E.brunetti(2.7%)的患病率最低。形态测量,最大艾美耳球虫(30.4×20.8μm)和艾美耳球虫(16.21×16.0μm)的卵囊表现出最大和最小的尺寸,分别。大多数艾美球虫物种的孢子形成时间为18h,其中最大的艾美球虫最高(30h),而在E.praecox最低(12h)。