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RISS 인기검색어
- 검색키워드
- 저자 : ( Okorie Eme Okorie ) (검색결과 7 건)
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Okorie, Okorie Eme,Kim, Young Chul,Kim, Kang-Woong,An, Cheul Min,Lee, Kyeong-Jun,Bai, Sungchul C. The Korean Society of Fisheries and Aquatic Scienc 2014 Fisheries and Aquatic Sciences Vol.17 No.4
Ten feeding trials were conducted to determine and to make the guideline for the optimum feeding rates in olive flounder Paralichthys olivaceus fed extruded pellets at various growth stages at the optimum rearing water temperature. The entire trials were grouped into four growth stages, namely the first stage of juvenile (5 and 9 g), the second stage of juvenile (20, 30, 40 and 50 g), growing (240 and 317 g) and sub-adult (384 and 525 g) stages with 2, 4, 2 and 2 feeding trials, respectively. In the first and second experiments, results indicated that the optimum feeding rates for the first stage of juvenile olive flounder weighing 5 and 9 g could be >5.17 but <5.52% and >4.44 but <4.64% body weight (BW)/day, respectively. In the third, fourth, fifth and sixth experiments, results suggested that the optimum feeding rates for the second stage of juvenile olive flounder weighing 20, 30, 40 and 50 g could be >3.47 but <3.50, >2.85 but <3.53, >2.58 but <3.04 and >2.36 but <2.50% BW/day, respectively. In the seventh and eighth experiments, results showed the optimum feeding rates for growing olive flounder weighing 240 and 317 g to be >1.03 but <1.25 and >0.85 but <1.0 % BW/day, respectively. In the ninth and tenth experiments, the optimum feeding rates in sub-adult olive flounder weighing 384 and 525 g were shown to be >0.69 but <0.7 and >0.55 but <0.8% BW/day, respectively. We will compare these results with the previous studies done by other research groups.
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Okorie Eme Okorie,김영철,김강웅,안철민,이경준,배성철 한국수산과학회 2014 Fisheries and Aquatic Sciences Vol.17 No.4
Ten feeding trials were conducted to determine and to make the guideline for the optimum feeding rates in olive flounder Paralichthys olivaceus fed extruded pellets at various growth stages at the optimum rearing water temperature. The entire trials were grouped into four growth stages, namely the first stage of juvenile (5 and 9 g), the second stage of juvenile (20, 30, 40 and 50 g), growing (240 and 317 g) and sub-adult (384 and 525 g) stages with 2, 4, 2 and 2 feeding trials, respectively. In the first and second experiments, results indicated that the optimum feeding rates for the first stage of juvenile olive flounder weighing 5 and 9 g could be >5.17 but <5.52% and >4.44 but <4.64% body weight (BW)/day, respectively. In the third, fourth, fifth and sixth experiments, results suggested that the optimum feeding rates for the second stage of juvenile olive flounder weighing 20, 30, 40 and 50 g could be >3.47 but <3.50, >2.85 but <3.53, >2.58 but <3.04 and >2.36 but <2.50% BW/day, respectively. In the seventh and eighth experiments, results showed the optimum feeding rates for growing olive flounder weighing 240 and 317 g to be >1.03 but <1.25 and >0.85 but <1.0 % BW/day, respectively. In the ninth and tenth experiments, the optimum feeding rates in sub-adult olive flounder weighing 384 and 525 g were shown to be >0.69 but <0.7 and >0.55 but <0.8% BW/day, respectively. We will compare these results with the previous studies done by other research groups.
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적수온(21-24℃)에서 사육한 성장기(317 g) 넙치(Paralichthys olivaceus)의 배합사료 적정 공급률
오대한,이경준,김성삼,김강웅,김경덕,이봉주,한현섭,김재원,Okorie Eme Okorie,배승철 한국수산과학회 2014 한국수산과학회지 Vol.47 No.4
We investigated the effects of feeding rate on the growth performance, blood components, and histology of grow- ing olive flounder Paralichthys olivaceus . Optimum feeding rate (initial fish mean weight : 316.7±6.18 g) was de- termined under the optimum water temperature. Two replicated groups of fish were fed a commercial diet at rates of 0%, 0.4%, 0.6%, and 0.8% of body weight (BW) per day, and to satiation. Feeding trial was conducted using a flow-through system with 10 1.2-metric ton aquaria receiving filtered seawater at 21-24°C for 3 weeks. Weight gain (WG) and specific growth rate (SGR) were significantly higher in fish fed to satiation (1.0% BW/day) than in those in other treatments. These parameters were negative and significantly lower in the starved fish than in fish fed the experimental diet at all feeding rates. There were no significant differences in WG and SGR among fish fed at 0.4%, 0.6%, and 0.8% BW/day. Hematocrit and hemoglobin in fish fed to satiation were significantly lower than those in other treatments. Histological changes of fish fed at 0.6% BW/day indicated that this group was in the best condition; differences were not found in tissues of fish fed at 0%, 0.6% and 1.0% BW/day. Broken-line regression analysis of weight gain showed that the optimum feeding rate of olive flounder weighing 317 g was 0.99% BW per day at the optimum water temperature.
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치어기 넙치 사료내 ${\beta}-1,3$ 글루칸의 첨가가 성장 및 비특이적 면역반응에 미치는 영향
김영철,김강웅,이승형,박건준,강용진,배승철,Kim, Young-Chul,Kim, Kang-Woong,Lee, Seung-Hyung,Park, Gun-Jun,Okorie, Okorie Eme,Kang, Yong-Jin,Bai, Sung-Chul C. 한국양식학회 2006 韓國養殖學會誌 Vol.19 No.4
본 실험은 치어기 넙치에 잇어서 ${\beta}-1,3$ 글루칸을 사료내 첨가시 성장, 비특이적 면역반응 및 질병저항성에 미치는 영향을 조사하기 위하여 사료내 ${\beta}-1,3$ 글루칸을 수준별 첨가하여 실시였다. 실험어는 평균무게 3.2 g인 넙치 치어를 사용하였으며, 기초사료에 ${\beta}-1,3$ 글루칸을 대조구, ${\beta}-1,3$ 글루칸 0.01, 0.025%, 0.05% 및 0.1%를 각각 첨가하여 총 5개 실험구로 3반복배치하여 6주간 실시하였다. 총 6주간의 성장 실험결과, 면역증강물질인 ${\beta}-1,3$ 글루칸의 첨가에 따르는 사료효율과 단백질전환효율에 있어서 ${\beta}-1,3$ 글루칸 0.1%를 공급한 사료구가 대조구와 다른처리구에 비하여 유의하게 높은 값을 나타냈다(P<0.05). 증체율과 일간성장율에 있어서는 ${\beta}-1,3$ 글루칸 0.1%를 공급한 사료구가 대조구, ${\beta}-1,3$ 글루칸 0.01%, 0.025%를 첨가한 구보다 유의하게 높은 값을 나타내었지만 ${\beta}-1,3$ 글루칸 0.05%구와는 유의한 차이가 없었다. 비만도에 있어서는 ${\beta}-1,3$ 글루칸 0.05%와 0.1%를 첨가한 구가 대조구와 첨가구보다는 유의적으로 높았다. 헤마토크리트치는 ${\beta}-1,3$ 글루칸 0.05%와 0.1%첨가한 실험구가 대조구와 ${\beta}-1,3$ 글루칸을 0.01%와 0.025%를 첨가한 실험구에 비하여 유의하게 높은 값을 나타내었다(P<0.05). 혈청내 GOT에 있어서 ${\beta}-1,3$ 글루칸 0.05%와 0.1%를 첨가한 실험구가 대조구, ${\beta}-1,3$ 글루칸 0.01%와 0.025%를 첨가한 실험구보다 유의하게 낮은 값을 나타내었다(P<0.05). 비특이적 면역반응 결과에 있어서는 ${\beta}-1,3$ 글루칸을 0.05%와 0.1%를 첨가한 실험구가 혈청의 lysozyme 활성 및 두신 phagocyte의 chemiluminescent(CL) 반응에서 대조구, ${\beta}-1,3$ 글루칸 0.01%와 0.025%를 첨가한 실험구보다 유의하게 높은 값을 나타내었으나, 보체대체활성의 경로에 있어서는 전실험구간의 유의한 차이를 보이지 않았다. 공격 실험 결과에서는 ${\beta}-1,3$ 글루칸을 첨가한 실험구가 대조구에 비하여 초기폐사율이 낮음을 확인할수 있었으며, 상기 결과를 토대로, 넙치 치어의 경우 ${\beta}-1,3$ 글루칸을 0.05% 이상 0.1% 미만을 사료에 첨가하는 것이 성장, 사료효율 증진, 항산화능 및 질병저항성에 가장 좋은 효과를 나타낼 수 있을 것을 사료된다. This study was conducted to investigate the effects of dietary supplementation of ${\beta}-1,3$ glucan on growth and immune responses in juvenile olive flounder, Paralichthys olivaceus fed the white fish meal based diets for 6 weeks. Five experimental diets supplemented with ${\beta}-1,3$ glucan at 0, 0.01, 0.025, 0.05, 0.1 % (Control, $G_{0.01},\;G_{0.025},\;G_{0.05}\;and\;G_{0.1}$, respectively) of diet on a dry-matter basis. Five experimental diets were formulated to be isonitrogenous and isocaloric to contain 50.0% crude protein and 16.7 kJ available energy $g^{-1}$. Fish averaging $3.2{\pm}0.1\;g\;(mean{\pm}SD)$ were randomly distributed in each aquarium as triplicate groups of 15 fish. Weight gain (WG, %), specific growth rate (SGR, %), and feed efficiency (FE, %) of fish fed $G_{0.1}$ diet were found significantly higher than those of fish fed Control, $G_{0.01},\;G_{0.025}\;and\;G_{0.05}$ diets (P<0.05). However, there was no significant difference among the fish fed control, $G_{0.01},\;G_{0.025}$. Chemiluminescent responses (CL) of fish fed $G_{0.1}$ diet were significantly higher than those of fish fed the other diets. Serum lysozyme activities of fish fed $G_{0.05}$ and $G_{0.1}$ diets were higher than those of fish fed control, $G_{0.025}$ and $G_{0.05}$ diets. Fish fed $G_{0.1}$ diet showed a significantly lower cumulative mortality than did fish fed control diet throughout the challenge test (P<0.05). These results suggested that based on growth rate, feed efficiency, non-specific immunity and protection against microbial infections the optimum dietary ${\beta}-1,3$ gulcan could be greater than 0.05% but less than 1.0% in juvenile olive flounder, Paralichthys oilvaceus.
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