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사료급여후(飼料給與後) 시간경과(時間經過)에 따른 젖소의 제일위내(弟一胃內) 섬모충류(纖毛蟲類)의 동태(動態)
이재구,이호일,이상복,백병걸,Rhee, Jae Ku,Lee, Ho Il,Lee, Sang Bork,Baek, Byeong Kirl 대한수의학회 1979 大韓獸醫學會誌 Vol.19 No.2
Eight Holstein cows weighing 419-673kg with 2 to 10 years of age were allocated into two groups, four animals each, to study the effect of feeding urea and urea plus Zeolite on rumen pH and the population of rumen ciliates. Rumen fluid samples were taken after morning feed for 7 times at one hour intervals. Experimental results obtained were as follows; 1. Rumen pH was gradually dropped from 7.272 to 7.163 by 3.01 hour and from 7.18 to 7.07 by 2.87 hour and reached 7.352 and 7.29 at 7 hour after feeding, respectively on urea and urea plus Zeolite feeding group. 2. Total ciliate numbers decreased from 209,540 to 113,755 by 4.311 hour and from 381,430 to 203.125 by 4.406 hour and gradually increased to 151,030 and 265,230 by 7 hour after feeding, respectively on urea and urea plus Zeolite feeding group. 3. Population of ruminal ciliates was not changed and Entodinium simplex was the major ciliate population for both treatments. It was from 81.21 to 89.12% on urea feeding group and from 84.6 to 88.3% of total number of ciliates on urea plus Zeolite feeding group.
비고유숙주(非固有宿主)에 있어서 면역억제(免疫抑制)가 돼지 회충(蛔蟲)의 감염(感染)에 미치는 영향(影響) I. 집토끼에서의 실험소견(實驗所見)
이재구,이창현,박배근,이상복,Rhee, Jae-ku,Lee, Chang-hyun,Park, Bae-keun,Lee, Sang-bork 대한수의학회 1993 大韓獸醫學會誌 Vol.33 No.4
As a series of studies to investigate the effect of immunosuppression on Ascaris suum infection in undefinitive hosts, a delicate relationship between host and parasite, rabbits were divided into experiment 1(control group) and experiment 2(immnunosuppressive group treated with prednisolone acetate) and inoculated with a single dose of 5,000 embryonated A suum eggs. The recovery rates, sizes and morphology of the larvae and immunological responses in the rabbits were chronologically monitored according to somatic migration. In both experiments, the larvae failed to develop into the adults, but young adults in the experiment 2 grew somewhat faster and survied later than those in the experiment 1. The mast cells of small intestinal mucosa and mesenteric lymph nodes and the goblet cells of small intestinal mucosa in the worm detected cases of experiment 2 decreased remarkably in number comparing with those of experiment 1. Considering the experimental results. the expulsion mechanism of somatic migrant larvae may he related to the temporary increasing tendency of the mast cells, the goblet cells, T-cells of mesenteric lymph nodes and spleens, eosinophils in peripheral blood, degranulation rates of peritoneal mast cells and the migration inhibition rates of leucocytes. In addition, patent infection of A suum in the rabbits was not obviously observed despite of immunosuppression by prednisolone acetate.