CAJ | 학술논문

兔球虫专性寄生于兔消化系统（肝脏及肠道），所引起的兔球虫病对养兔业危害极大。兔球虫病对断奶后至3月龄的幼兔危害最大，本文用5000个中型艾美耳球虫和无残艾美耳球虫卵囊分别接种30、50和70日龄的新西兰白兔，通过统计兔排出的球虫卵囊量来分析不同日龄幼兔的易感性。结果显示，中型艾美耳球虫感染时，70日龄兔卵囊排出总量仅为3.7×107，明显低于30日龄（1.03×108）、50日龄（6.5×107）兔，且差异显著；而无残艾美耳球虫感染也得到相似的结果。同时，30日龄兔在感染后临床症状明显，精神萎靡，便秘、腹泻现象交替出现。该结果表明断奶前后（30日龄左右）幼兔对两种球虫的易感性最强。
토구충전성기생우토소화계통（간장급장도），소인기적토구충병대양토업위해겁대。토구충병대단내후지3월령적유토위해최대，본문용5000개중형애미이구충화무잔애미이구충란낭분별접충30、50화70일령적신서란백토，통과통계토배출적구충란낭량래분석불동일령유토적역감성。결과현시，중형애미이구충감염시，70일령토란낭배출총량부위3.7×107，명현저우30일령（1.03×108）、50일령（6.5×107）토，차차이현저；이무잔애미이구충감염야득도상사적결과。동시，30일령토재감염후림상증상명현，정신위미，편비、복사현상교체출현。해결과표명단내전후（30일령좌우）유토대량충구충적역감성최강。
Weaning rabbits under the age of 3 months are most susceptible to coccidiosis, which is caused by the infection of 11 Eimeria species.However, no data is available about the susceptibility of rabbits under the age of 3 months.In this study, groups of rabbits at different ages (30 d, 50 d and 70 d) were infected with same dose of sporulated oocysts of Eimeria media or E.irresidua.Oocysts shed in feces during day 1 and day 5 after the infection were counted daily.The total number of oocysts production of 70 d old rabbits infected with E.media only was 3.7 ×107, obviously less than 30 d old rabbits (1.03 ×108) and 50 d rabbits (6.5 ×107).The same phenomenon was seen in rabbits infected with E.irresidua. At the same time, the clinical symptoms of the younger rabbits were obvious, reflecting depression, constipation and diarrhea.These results indicated that weaning rabbits at the age of 30 days are the most susceptible and thus provides clues to the control of coccidiosis in young rabbits.