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생리적 분류채취에 의한 무돈정액의 가사상태와 분류채취의 수태율에 대한 연구
이용빈 한국축산학회 1961 한국축산학회지 Vol.3 No.1
(Ⅰ) The time differences of anabiosis for roar semen by fractionated collection showed highly significant differences at one per cent level in the 12 treatments and split ejaculates. The relationship of split ejaculates could be formulated as follows; Ⅰ. $gt; Ⅱ. $gt; Ⅲ. (Ⅱ) The anabiosised precitipation part of boar semen by fractionated collection was also highly significant at one per cent level in the 12 treatments and split ejaculates. The relationship of L.S.D. for split ejaculates was as following formula; Ⅰ. $gt;Ⅲ. $gt;Ⅱ. (Ⅲ) The fertility differences between the whole ejaculate and the first ejaculate was highly significant as the differences was 9% between them. Both the whole ejaculate and 1st ejaculate inseminating fertilities were rather low under Korean farm condition. If the farmer's feeding and management improved, as in other developed swine counties, there would be higher birth rate of pits than the above data. Actually the birth rate was about normal and not low as some farmers would believe.
李鎔彬 明知史學會 2004 明知史論 Vol.14.15 No.
본 고에서는 백제 지방통치제도의 전개와 변화과정에 대한 기존 견해들을 거시적 측면에서 살펴본 후 각론에 대한 諸見解들을 5부제, 담로제, 5방제의 순서로 세분하여 상술하고자 한다. 이를 통하여 현재까지의 연구 동향을 살펴볼 수 있고, 또한 앞으로 해결해야 할 과제가 무엇인지를 짚어볼 수 있을 것으로 기대된다. 백제의 지방통치제도는 대체로 5부제-담로제-5방제 혹은 5부제-5부제ㆍ담로제의 병존기-5방제가 繼起的 관계에 있었으며, 이러한 제도의 변화는 전대 제도의 미숙성을 극복하는 과정에서 나타나는 좀 더 변화ㆍ발전된 제도로의 지향이라 할 수 있다. 그러나 各論에 있어서는 아직까지 해결해야 할 문제점 또한 적지 않음을 확인할 수 있었다.
Chlortetracycline 과 비닐포장처리에 의한 토육의 상온저장시험
이용빈,송계원,고준수 한국축산학회 1965 한국축산학회지 Vol.7 No.1
The shelf-life of cony meat was studied out in this experiment. After the rabbit dressed out, the meat was treated with 10 p.p.m. Chlortetracycline (C.T.C.) solution and packed with polyethylene. The samples were taken from the muscle of the rump and the round. We allotted eight treatments: That is, two temperature levels (5℃ and 20℃) that have two treatments: Control and C.T.C.-Treated. And each treatment of each temperature levels has two treatments, Control and Packed with Polyethylene. The items investigated are the change of the number of microorganisms, pH, and methylene blue reducing time. The results are as follows: 1. Effectively, C.T.C. suppressed the increasing of microorganisms of cony meat during the storage. And there was highly significant difference at 1.0% level in the C.T.C.-Treated meats on the Ist day of storage. The number of microorganism reached 10^8 per gram in 20℃-Control by the 2nd day of storage and 10^8 per gram by the 7th day of storage. 2. The increasing of yeasts was apparent in 20℃-C.T.C.-Treated on the 5th and 6th day of storage. And on the 7th day of storage, molds were also found. 3. Polyethylene packing was effective (significant at 5.0%) on the 2nd, 3rd, 4th, and 5th day of storage in 5℃-Control, and on the 2nd, 3rd day of storage in 20℃-C.T.C.-Treated. 4. The pH of cony meat during storage was lower in 20℃-C.T.C.-Treated by the 4th day of storage than in 5℃-Control, but after 5th day of storage, the pH of meat. was increased rapidly. 5. The C.T.C. treatment has a more strong effect upon the change of pH of cony meat than the polyethylene packing throughout the storage. And the effect of the temperature was greater than that of C.T.C.-Treatment. 6. C.T.C.-Treatment has shorten methylene blue reducing time than control (significant at 1.0%). And the methylene blue reducing time of 20℃-C.T.C.-Treated was similart to that of 5℃-Control all throughout the experiment period. 7. Polyethylene packing has an effect upon the methylene blue reducing time on the 3rd, 4th day of storage (significant at 5.0%). In the testing of L.S.D., there was no significant differences throughout the period.
전기영동과 산알카리처리 결합방법에 의한 돼지정액의 X 와 Y 정자 분리에 관한 연구
이용빈,서국성,여정수,정용기 ( Y . B . Lee,G . S . Suh,J . S . Yeo,Y . K . Chung ) 한국축산학회 1980 한국축산학회지 Vol.22 No.4
The combination of the acid-alkali method and eletrophoresis for X-and Y-sperm separation of boar semen was performed We used lactic acid and sodium bicarbonate in acid-alkali method, and electrophoresed at 2.5V and 200 μA. The results obtained were summarized as follows : 1. The frequency of appearance of B-body from alkali treatment of whole semen was significantly higher than that from acid treatment. 2. The frequency of appearance of B-body from alkali treatment at the anode electrode was significantly higher compared with that from acid treatment at the same electrode, while that from acid treatment at the cathode was slightly higher than that from alkali treatment at the same electrode. 3. According to time of treatment, Appearance of B-body from alkali treatment at the anode after electrophonesis was decreased, and the result from acid treatment at the same condition was the opposite, while appearance of B-body from alkali treatment at the cathode after electrophoresis was not changed and that from acid treatment at the same condition was increased. 4. Appearance of B-body from alkali treatment at the anode for 5-10minutes showed the most useful result which was higher than the result (51.9%) from electrophoresis alone by 3 %.