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Liver-Fluke의 寄生이 山羊의 繁殖障害와 乳肉生産에 미치는 影響에 관한 硏究
金敎準,田暢淇,金容國,金相根 충남대학교 농업과학연구소 1979 農業技術硏究報告 Vol.6 No.1
These studies were carried out to investigate the effects of liver-fluke infection on the reproductive disorder and milk and meat production in Korea Native Goat. A survey of infected goat in Chungnam district was conducted with 474 head by interdermal reaction and also a clinical observation was founded. A experiment was carried out to determine the effects of liver fluke extract on the reproductive disorder by subcutaneous injection and milk and meat yield were measured from treated goats. The results obtained were summarized as follows. 1. The rate of positive goat was 71.3% among the surveyed goat and the highest rate was appeared at 3∼4 years old goats as 81.4%. 2. The treated goats lost condition and failed to thrive, and became progressive weaker. 3. In hemogram observation, the rate of eosinophil leucocyte was increased significantly by extract treated. 4. It was appeared the pathogenic signs such symptoms poisoning liver function disturbance and reproductive disorder from treated goats with liver fluke extract. 5. In milking goat the milk yield droped significantly and fattening goat did not fatten. 6. The gross income value per capita was lower from infected goat and it was analysed more sensitivly in net income value.
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李載斗,金昌基 成均館大學校 1966 論文集 Vol.11 No.-
은행나무(Ginkgo biloba L.)胚의 根端에서 3㎜를 切斷除去한 나머지의 shoot部分을 寒天添加無糖 White氏 培養液 (1943年)에 sucrose 2%, 4%와 IAA(0.001 ppm)와 IAA 및 GA(0.00025ppm)를 添加한 6種類의 培養液과 無糖液을 合한 7個의 試驗區에서 14日間 培養實驗하고 各試驗區에서 자란 根端切除胚의 切斷面에 가까운 pericycle 部位에서 側根이 發生하는 樣相을 調査하였다. 그 調査結果는 다음과 같다. (1) IAA 添加 4% sucrose區에서 根形成이 가장 旺盛하였으며 IAA+GA 添加 sucrose區에서 가장 低調하였다. (2) IAA 添加 2% sucrose區에서는 pericambium이 나타나나 아직 根形成이 뚜렷하지 않고, 2% sucrose區와 IAA+GA 添加 sucrose區에서는 全然 pericycle조차 나타나고 있지 않는다. (3) 糖添加培養에 IAA 添加를 함으로써 組織分化가 顯著하여지고 있으며 이것은 糖과 IAA가 根形成에 相乘作用을 하는 現象으로 볼수 있다. (4) GA+IAA 添加區는 IAA 添加區보다 生長 및 分化가 低調하였다. The shoot portion of embryo removed 3㎜. from root tip of Ginkgo biloba was cultured in the White solution containing agar, 2 and 4% sucrose was also added to this medium with IAA. (0.001 p.p.m.) and GA.(0.00025 p.p.m.). In this experiment, author investigated that the lateral root was developed from pericycle near the sliced root tip of embryo, which was grown in each medium during 14 days at 25±1℃. The results are as follows. 1. The 4% sucrose medium supplemented IAA. was most active one, supporting the root formation, but the other with IAA+GA. was inactive one. 2. Even though pericambium was developed in the 2% sucrose medium containing IAA., perieycle could not be found in the 2% sucrose medium containing IAA.+GA.. 3. When IAA. supplemented sucrose medium, tissue differentiation was marked. 4. The root formation and root differentiation was inactivated in sucrose medium containing IAA.+GA..
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