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홍백 비단잉어와 홍백 비단잉어×홍잉어 교배종의 적색소 분석
황주애,김정은,이정호,김대희,김형수,Hwang, Ju-ae,Kim, Jung Eun,Lee, Jeong-Ho,Kim, Dae-Hee,Kim, Hyeong Su 한국어류학회 2018 韓國魚類學會誌 Vol.30 No.4
본 연구는 고품질 비단잉어 생산을 위해 비단잉어와 홍잉어 교배종의 성장과 적색색소의 빈도분석을 통해 비단잉어 색도를 분석하였다. 색소 및 성장도 분석을 위해 부화 후 170일령 비단잉어를 각 교배 집단별로[비단잉어${\times}$비단잉어(KK), 비단잉어${\times}$홍잉어(KR)와 홍잉어${\times}$비단잉어(RK)] 100개체씩 분석하였다. 성장도 분석 결과 비단잉어${\times}$홍잉어(KR) 교배집단에서 전장과 전중의 성장이 가장 높았다. 교배 그룹 모두 흰색, 적색-흰색, 적색의 3가지 색소 패턴을 보였다. 적색색소 분포는 KK 집단이 64%, KR 집단이 56%, RK 집단이 36%였다. 적색 색소 범위의 빈도분석 결과 적색색소 30~50%를 차지하는 비율이 KK 집단이 10%, RK 집단이 12% 그리고 KR 집단이 14%로 가장 높았다. 비단잉어 적색색소 빈도 분석에 관한 연구는 비단잉어 선별을 위한 분석 도구로서 활용이 가능할 것으로 판단된다. The purpose of this study was to investigate color pattern and growth in cross progenies between kois and red common carp (Cyprinus carpio). Coverage of red color patches in skin was investigated in $koi{\times}koi$ (KK), $koi{\times}red$ common carp (KR) and red common $carp{\times}koi$ (RK) progenies in 170 days post-hatching (DPH) by analysis of digital photographs. KR cross group had higher length (P<0.05) and the mean weight than in the KK but there were no significant difference between KR and RK. All groups consisted of three color pattern white, white-red and red. The percentage of red-area coverage in skin was 64% in KK progenies, 56% in KR and 36% in RK. The red coverage (30~50%) was highly in KR (15%) than in KK (10%) and RK (12%). The application of red-area body coverage analysis may suggest potentially useful tool for ornamental fish selection.
바이오플락 기반 아쿠아포닉스 시스템 개발에 의한 뱀장어(Anguilla japonica)와 재배작물의 성장에 미치는 영향
황주애 ( Ju-ae Hwang ),이정호 ( Jeong-ho Lee ),박준성 ( Jun Seong Park ),최종렬 ( Jong Ryeol Choe ),이동길 ( Donggil Lee ),김형수 ( Hyeongsu Kim ) 한국수산과학회 2021 한국수산과학회지 Vol.54 No.4
The effects of an aquaponic system based on biofloc technology (BFT-AP) were analyzed for eel Anguilla japonica as aquaculture species and caipira Lactuca sativa as the cultivated crops. The rate of weight gain rate by the eels was 178% (BFT-AP 200 head) > 136% (BFT-AP 100 head) > 100% (BFT). The eel body weight in the BFT-AP (200 head) significantly increased when compared to the BFT only eel group (P< 0.05). The weight of the upper layer of caipira was 91±8.5 g (200 head) > 90±8.9 g (100 head) > 48±8.3 g (Hydroponic crop, HP). The crop growth in all BFT-AP groups was higher than the control, the hydroponic group. The total ammonia nitrogen (TAN) and NO2 --N concentrations decreased in the BFT-AP group when compared to the BFT group. It was possible to remove nitric acid from the aquaponics system and reuse it as eel rearing water. Although some nutrient concentrations were low in BFT when compared to HP, the nutrient concentration was sufficient for plant growth. The results show that BFT has the potentially to provide a sustainable aquaponic system.
김정은 ( Jung Eun Kim ),황주애 ( Ju-ae Hwang ),김형수 ( Hyeong Su Kim ),임재현 ( Jae Hyun Im ),이정호 ( Jeong-ho Lee ) 한국어류학회 2020 韓國魚類學會誌 Vol.32 No.4
1973년 이스라엘 잉어 (향어)가 한국에 양식을 위해 도입된 이후 현재까지 품종개량에 대한 연구가 전무한 실정이다. 본 연구는 지속적인 근친교배로 인해 낮아진 국내 이스라엘 잉어의 유전적 다양성을 회복하고, 성장이 빠르고 비늘 개선을 위해 유전적 기반 교잡육종 연구를 수행하였다. 본 연구는 한국의 이스라엘 잉어의 품종 개량을 위하여 국내 이스라엘 잉어와 중국의 송푸거울 잉어를 이용하여 4개의 교배구를 설정하여 F1을 생산하였다. 친어의 형태 및 유전학적 거리를 고려하여 교배지침을 설정하였다. 본 연구는 유전적 다양성과 친자분석을 위하여 microsatellite 마커와 유전형 데이터를 활용하였다. 그 결과, 국내 친어의 평균 대립유전자와 기대이형접합율은 8.3과 0.743이며, F1은 13.0과 0.764이었다. 국내 이스라엘 잉어와 중국 송푸거울 잉어의 품종 간 교배를 통하여 국내 이스라엘 잉어보다 F1의 유전적 다양성이 회복되었음을 나타내었다. 한국의 일반 이스라엘 잉어는 17개월에 1.7 kg이었고, 개량된 이스라엘 잉어는 2.2 kg에 도달하였다. 또한, KC (한국×중국) 교배그룹의 비늘수치는 2.52, 친어그룹의 비늘수치는 3.15로 나타나 F1은 친어보다 낮은 비늘수치 (0.63)를 나타내었다. 품종개량된 이스라엘 잉어 (F1; CK, KC)는 친어그룹 (F0)보다 비늘이 20% 개선되었으며, 일반 이스라엘 잉어에 비해 체중 (27%)과 비늘(25%)이 향상되었다. 유전적 데이터를 기반으로 개발된 이스라엘 잉어는 상업성이 좋아 국내 이스라엘 양식업에 크게 기여할 것으로 생각된다. Since the introduction of Israeli carp into Korea for farming in 1973, there are no breeding studies on developing Korea Israeli carp (domestic) so far. This study performed gene-based cross-breeding studies to restore genetic diversity of lowered Israeli carp through continuous inbreeding, and for rapid growth and better scales. This study produced four cross-breeding groups (F1) using Koean Israeli carp and Chinese Songpu mirror carp for the improvement of growth and scale of Israeli carp in Korea. And mating scheme for breeding groups was set in consideration of the morphological analysis and genetic distance of broodstock. In addition, this study used microsatellite markers and genotype data to analyze genetic diversity and parentage analysis. As a result, the average NA and HE values of Korean select broodstock are 8.3 and 0.743, and F1 is 13.0 and 0.764. This study shows that the genetic diversity of F1 has been recovered over Korean Israeli carp through breeding between Korean Israeli carp and Chinese Songpu mirror carp. Common Israeli carp in Korea reached 1.7 kg in 17 months, and improved Israeli carp reached to 2.2 kg. The KC (Korea×China, KC) group was 2.52 and broodstock group was 3.15. F1 showed lower scale score (0.63) than broodstock. The improved carp (F1; CK, KC) had 20% better scales than the parent group (F0), which improved 27% in weight and 25% in scales compared to common Israeli carp. The Israeli carp developed by the genetics-based breeding grew quicker and had improved genetic diversity and fewer scales, which will be of great value for Korean Israeli aquaculture industry due to good marketability.
미생물총(Biofloc) 시스템에서의 큰징거미새우(Macrobrachium rosenbergii)의 성장과 수질변화에 관한 연구
박준성(Jun Seong PARK),이정호(Jung-Ho LEE),황주애(Ju-Ae HWANG) 한국수산해양교육학회 2024 水産海洋敎育硏究 Vol.36 No.2
The present study aimed to compare the effect of biofloc technolgoy (BFT) and outdoor open-field farming on water quality and the growth performance of the giant freshwater prawn (Macrobrachium rosenbergii) during summer (June to September, total 119 days) in South Korea. At the end of the experiment, ammonia and nitrite levels were found to be more stable in the BFT treatment than in the outdoor open-field; however, total suspended solids and nitrite tended to gradually increase. In addition, in the case of outdoor open-field farming, fluctuations in water quality were observed owing to inflow of water during the rainy season in the summer. The growth and survival rate with BFT were similar to those with outdoor open-field farming: total weight, BFT 36.7 ± 0.92 vs. outdoor 36.0 ± 1.42 kg; survival rate, BFT 75.1 ± 1.88% vs. outdoor 82.9 ± 3.23%; and feed coefficient ratio, BFT 2.7 ± 0.07 vs. outdoor 2.3 ± 0.09. In addition, BFT showed a good effect on individual growth: specific growth rate, BFT 3.9 ± 0.08 %/day vs. outdoor 3.8 ± 0.04 %/day.
바이오플락기술(BFT)과 BFT 기반 아쿠아포닉스(FLOCponics) 적용에 따른 뱀장어와 메기 및 카이피라 상추의 성장 비교 연구
정해승(Hae Seung JEONG),박준성(Jun Seong PARK),황주애(Ju-Ae HWANG) 한국수산해양교육학회 2024 水産海洋敎育硏究 Vol.36 No.2
This study investigated the growth performance of eel Anguilla japonica and Far Eastern catfish Silurus asotus, and caipira Lactuca sativa in Biofloc technology (BFT) and aquaponics based on BFT (FLOCponics) for 4-week. In addition to, Hydroponics was prepared to be compared to FLOCponics on the growth performance of caipira. After the 4-week experimental trial, total weight and specific growth rate (SGR) of eel and catfish reared in FLOCponics were greater than those of fishes reared in BFT, respectively. The greatest total weight and leaf weight of caipira were obtained in FLOCponics with eel and there is no significant difference between FLOCponics with catfish and Hydroponics. In conclusion, FLOCponics was more effective in cultivating fish than BFT and FLOCpoinics with eel was more suitable for growth of caipira than FLOCponics with catfish.
실내외 양식환경에 따른 미꾸라지 (Misgurnus mizolepis) 양식장 모니터링과 성장특성
최복기 ( Bok Ki Choi ),최종렬 ( Jong Ryeol Choe ),이정호 ( Jeong-ho Lee ),박종성 ( Jong Sung Park ),김정은 ( Jung Eun Kim ),황주애 ( Ju-ae Hwang ),김형수 ( Hyeong Su Kim ) 한국어류학회 2020 韓國魚類學會誌 Vol.32 No.4
본 연구는 실내외 양식방법에 따른 미꾸라지 양식장 모니터링과 성장특성을 조사하여 국내 미꾸라지 양식산업에 대한 기초자료를 확보하고자 수행하였다. 조사는 2017년 8월부터 2019년 10월까지 실내 양식장 1개소 (D-site), 실외양식장 2개소 (P1-site, P2-site)를 선정하여 수행하였다. 성장도 측정결과를 토대로 WG (weight gain), DWG (daily weight gain), and SWG (specific weight gain) 분석한 결과 D-site에서는 175.27±36.2%, 7.98±3.3%, 0.94±0.2%, P1-site에서 320±34%, 4.07±0.6%, 0.55±0.1%, P2-site에서 295.9±53%, 4.15±0.5%, 0.62±0.1%로 나타났다. WG는 실외노지 양식장 (P1-Site과 P2-site)에서 높았지만 DWG와 SWG는 실내양식장 (D-site)에서 높게 나타났다. 본 조사 결과의 차이는 실내외 양식방법에 따른 성장도, 수질환경, 출하시기 및 횟수 차이로 인한 것으로 판단된다. 특히 실외 양식은 출하시기까지 1년 이상 소요되었으나 실내 양식은 1년에 3회의 출하가 가능한 것으로 나타났다. The objective of the present study was to investigate fish farm and growth performances of Chinese muddy loach (Misgurnus mizolepis) under indoor and outdoor aquaculture conditions for the domestic loach aquaculture industry. The investigation was conducted from August 2017 to October 2019 at one indoor farm (D-site) and two outdoor farms (P1-site and P2-site). Results showed that WG (weight gain), DWG (daily weight gain), and SWG (specific weight gain) based on growth measurements were 175.27±36.2%, 7.98±3.3%, and 0.94±0.2% at D-site, 320±34%, 4.07±0.6%, and 0.55±0.1% at P1-site, and 295.9±53%, 4.15±0.5%, and 0.62±0.1% at P2-site, respectively. WG was higher in outdoor farms (P1-site and P2-site), while DWG and SWG were higher in the indoor farm (D-site). Such differences of the present study might be due to differences in growth, water quality, plant and sale frequency depending on aquaculture types. In particular, outdoor farms takes more than a year to have sales whereas indoor farms can have sales three times in a year.