Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)
- Volume 3 Issue 1
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- Pages.19-26
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- 1970
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- 0374-8111(pISSN)
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- 2287-8815(eISSN)
AN EXPERIMENT TO INDUCE SPAWNING OF CHINESE CARPS BY PITUITARY INJECTION
초어 및 백련의 인공 번식에 관한 연구
Abstract
During the summer of 1969, a series of experiments on the spawning and development of the eggs of grass carp and silver carp was performed with the following results, but the complete development of eggs Iras not accomplished: 1. The season of maturity for both species is estimated to be from the end of June to the beginning of August. 2. Pituitary glands for the use of inducing maturation should be obtained before the maturation season of its donor. 3. Silver carp as small as 40 cm in body length (48 cm in total length) with an age of 6 years were found to have reached maturity, and the number of eggs in the ovaries were from about 23 to 26 thousand for those with body lengths of 40-44.5 cm. 4. The conical-shaped net cloth incubator worked better than others, and each incubator was most effective when installed in parallel series to the water supply pipe with a valve for each incubator to control water flow. 5. During the egg development, if any cell or cells were displaced, the eggs eventually died. 6. The proper manipulation of brood fish before the egg-taking seems to be very Important, and close care should be paid to feeding them well and keeping them in a pond of proper water depth.
1969년 여름 부산수산대학 양어장에서 1963년 일본으로부터 도입하여 길러온 초어와 백련을 사용 채란과 부화실험을 하였는 바, 그 결과는 좋지 못하였지만, 다음과 같은 점을 지적한다. 1. 부산지방의 못에서 양식한 초어가 백련의 성숙 채란 적기는 6월 말부터 8원 초까지의 사이에 있다고 인정된다. 2. 산란 촉진용 뇌하수체는 동종 또는 근연종의 친어로부터 그들의 산란기이 진에 적출 보관하였다가 사용하는 것이 좋다고 인정된다. 3. 백련은 체장 40cm(전장 48cm) 가량의 작은 개체도 6년생은 모두 채란 가능하였으며, 포란수는 체장
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