• Environmental Analysis Health and Toxicology
• /
• 제18권2호
• /
• pp.69-76
• /
• 2003

Effects of ambient nitrite, NO$_2$$\^$-/, at 1, 3, 10 and 30 mg/1, on the changes of plasma nitrite/nitrate and on hepatic drug - metabolizing enzyme activity were examined in the juvenile Israeli carp, Cyprinus carpio. When the fish were exposed to 1 and 3 mg/1 NO$_2$$\^$-/, there was an exposure duration-dependent increase in plasma NO$_2$$\^$-/ over the 96-hr period reaching 6∼7 fold excess the ambient concentration. In the fish exposed to 10 mg/1, a plateau concentration of less than 2-fold of the environment was attained in 12 hr. With 30 mg/1, however, the maximal plasma NO$_2$$\^$-/ was 41.25 mg/1 at 12 hr followed by a gradual decline. There was a concentration-dependent increase in methemoglobin (metHb) level in all NO$_2$$\^$-/ -exposed groups and a significant decrease in hematocrit value in 30 mg/l group after 96-hr exposure. Apart from the blunted increase in plasma NO$_2$$\^$-/ with higher NO$_2$$\^$-/ (10 and 30 mg/1) exposure, the ratio of plasma NO$_3$$\^$-/ to NO$_2$$\^$-/ was signifirantly higher in these groups compared to 1 and 3 mg/1. The imbalance in the plasma NO$_3$$\^$-//NO$_2$$\^$-/ at higher NO$_2$$\^$-/ exposure suggests a possible accelerated conversion of NO$_2$$\^$-/ to NO$_3$$\^$-/. Nitrite exposure did not affect the hepatic drug-metabolic activities in juvenile Israeli carp. All these data indicate that disposition of NO$_2$- differ depending upon exposed concentration and that metHb production may not be the exclusive toxic mechanism in carp.

• 한국수산과학회지
• /
• 제56권3호
• /
• pp.284-292
• /
• 2023

This study was conducted to optimize the cookie preparation using Israeli crap Cyprinus carpio paste (C-ICP). The results of response surface methodology suggested the selection of other supplementary materials/[soft flour (SF) + ICP] (X₁) and SF/ICP (X₂) as independent variables, and hardness (Y₁), yellowness (Y₂), amino acid nitrogen (Y₃), and overall sensory acceptance (Y₄) as dependent variables. The optimal conditions of OS, SF, and ICP were 35.0%, 40.3% and 24.7%, respectively, and the predicted values of the multiple response optimal conditions Y₁, Y₂, Y₃, and Y₄ were 2,006.2 N/m2, 21.1, 30.0 mg/100 g, and a score of 6.6, respectively. Under the optimum conditions, experimental values of Y₁, Y₂, Y₃, and Y₄ were 2,010.5 ± 22.3 N/m2, 21.6 ± 0.5, 29.6 ± 0.7 mg/100 g, and a score of 6.9 ± 0.3, respectively, which were not significantly different from the predicted values (P < 0.05). The results on hardness, moisture, VCI yellowness, and lightness suggested that the optimum heating period was 20 min. C-ICP prepared under the optimum conditions was superior in sensory evaluation to cookies without the Israeli carp paste.

• 한국수산과학회지
• /
• 제15권4호
• /
• pp.329-332
• /
• 1982

부산수산대학 양어장에서 1978년부터 1931년 사이에 이스라엘잉어의 산난에 관한 일련의 시도연구를 하였다. 1. 처음 3년간인 1980년 초기까지 노하직체와 상품 Gonadotropin 호르몬 주사에 의한 산난유발을 시도했으나 거의 모두 실패하고, 1980년과 1981년에는 수온상승법에 의한 산난유발을 해본 결과 거의 완벽한 결과를 얻었다. 2. 친어지의 수온은 약 $7\;m^2$되는 소형운형지에 낮은 수온의 샘물을 연속 주입시켜서 $16.9\sim20.2^{\circ}C$의범위로 유지하였으며, 산난지의 수온은 친어지 수온보다 항상 $3.0\sim6.5^{\circ}C$ 높게 준비되었다. 3. 다양의 잉어 뇌하수체나 Gonadotropin을 주사하드라도 수온조절이 되지 않은 상태에서는 이스라엘잉어의 산난이 어렵다는 것을 알았다.

• 한국수산과학회지
• /
• 제55권3호
• /
• pp.239-248
• /
• 2022

This study was conducted to compare sensory and nutritional and digestive properties of the Israeli carp Cyprinus carpio muscle (ICM) by size [normal large (NLF) and small (NSF) fish], part [ventral (VM) and dorsal (DM) muscle], and commercial value [NLF, recessive (RF) or deformed (DF) fish]. In NLF, the major amino acids were lysine, aspartic acid, and glutamic acid, whereas aspartic acid and glutamic acid were predominant in NSF, DM, VM, DF, and RF. Taurine content increased with fish size, and was higher in DM than in VM, and higher in NLF than in DF but lower than that in RF. Regardless of ICM size, part, and commercial value, potassium and iron were expected in the health function, but calcium and zinc were not expected. The major fatty acids present in ICM were 16:0, 18:1n-9, and 18:2n-6, regardless of size, part, and commercial value. The digestion rate of ICM by digestive organ was lower in NLF than in NSF, and lower in VM with a high lipid content than in DM, and lower in DF than in RF.

• 한국수산과학회지
• /
• 제55권2호
• /
• pp.121-128
• /
• 2022

The aims of this study were to optimize the processing procedure of high-quality semi-alternating temperature dried Israeli carp Cyprinus carpio (SAD-IC) and to investigate the sensory properties of the product. Based on the differences in moisture content of the dorsal and ventral muscles, high quality SAD-IC was prepared by alternating the drying temperature between 4 h at 35℃, and 2 h at 5℃, three times before final drying for 2 h at 35℃. The surface in SAD-IC produced under the optimal alternating-temperature drying process had a markedly superior browning index value and softer texture compared to products produced using constant-temperature drying. SAD-IC produced from dorsal and ventral muscle had significantly superior taste values than the raw material. These results suggest that SAD-IC has the potential to be industrialized.

• 한국수산과학회지
• /
• 제55권1호
• /
• pp.1-9
• /
• 2022

This study was conducted to compare the sensory and enzymatic properties of Israeli carp Cyprinus carpio muscle (ICM) according to size [normal large (NLF) and small fish (NSF)], part [ventral (VM) and dorsal muscles (DM)], and commercial value [NLF, recessive (RF), or deformed fish (DF)]. There was not difference in salty of all samples. The sourness was stronger in NLF and DM than in NSF, RF, and DF, and VM, respectively. The umami of ICM showed no size-associated differences; however, those of DM, and DF and RF, were superior to those of the VM and NLF, respectively. The sweetness was also stronger in NLF than in NSF and RF, and in DM than VM. The sweetness of DF didn't differ compared to those of NLF and RF. The intensity of fish odor was weaker in NSF or DF than that in NLF, and was higher in DM than in VM. The color of ICM was bright in NSF and DF compared to NLF. Enzyme activity was very low in the muscles and high in viscera. Therefore, ICM could be used as a material for seafood products, regardless of size, part, and commercial value; however, the issue of lipid oxidation must be considered.

• 한국양식학회지
• /
• 제9권2호
• /
• pp.151-157
• /
• 1996

이스라엘 잉어에 대하여 파래첨가 사육시 성장 및 혈액성상에 미치는 영향을 조사하기 위하여 파래분말을 각각 0, 1, 5 및 $10\%$ 첨가한 사료를 이용하여 4개월간 사육하면서 어체의 증체율, 비만도, 사료효율 및 혈액학적인 성상을 비교 조사하였다. 증체율은 파래 첨가농도에 비례하여 감소하였으며, 투여기간에 따라서 약간의 차이가 있었으나 전기간동안 증체율의 감소를 보였다. 비만도는 대조구에 비해서 $1\%$ 첨가군에서는 전사육기간에 약간 증가되는 경향을 보였으나, $5\%$ 첨가군에서는 전 사육간을 통하여 현저한 증가를 보였다. 한편, $10\%$첨가군에서는 사육기간에 비례감소 되었다. 사료효율은 대조구에 비해서 파래 첨가농도 및 사육일수에 무관하게 저하되었으며, 특히 $10\%$ 군에서는 사육일수에 비례하여 현저하게 저하되었다. 혈액성분은 첨가군에서 총단백, Hb, GOT 및 GPT등은 차이가 인정되지 않았으며, 알부민 및 글루코스치등은 증가되었으나, Ht값은 첨가농도에 비례하여 감소되었다.

• 한국양식학회지
• /
• 제2권1호
• /
• pp.21-32
• /
• 1989

이스라엘 잉어 난모세포의 발달단계와 혈청중 호르몬 농도의 변화를 알기 위해서 2월부터 3월까지 본 연구를 수행했다. 본 연구에서 얻어진 결과는 다음과 같다. 1. 난소가 발달되는 3월에 들어와서 혈청중 LH 수준이 급격히 상승하기 시작했다. 2. LH 수준은 G.S.I.의 변화와 높은 상관관계에 있었다. 3. 3월경부터 G.S.I.가 급격하게 증가했다 4. 3월중에는 성숙단계가 상당히 증가했다. 5. Early Perinuclcolus oocyte가 late perinucleolus core로의 빠른 발달을 나타냈다. 6. 난황이 축적됨으로써 late perinucleolus oocyte가 초기성숙단계인 oocyte로 되는 시기에 vitellogenesis가 시작되었다. 7. Oocyte가 후기성숙단계에 도달했을 때 세포질내에 난황으로 가득 채워졌다. 8. 이스라엘 잉어 난소의 헌미경적 형태의 변화는 G.S.I. 외관상의 변화와 연관성이 깊었다 9. LH는 이스라엘 잉어의 성성숙에 중요한 역할을 수행하는 것으로 나타났다.

• 한국수산과학회지
• /
• 제56권4호
• /
• pp.484-493
• /
• 2023

This study was conducted to investigate the sensory and nutritional properties of vegetable rice porridge made with Israeli carp (VRP-IC), and to compare it with commercial vegetable rice porridges (controls). The proximate composition of VRP-IC per 100 g was 82.4 g moisture, 3.9 g protein, 2.6 g lipids, and 0.9 g ash, and had a lower moisture content than that of the controls, but a higher crude protein, crude lipid, and ash content. In terms of taste, VRP-IC was higher in umami and sourness, but lower in saltiness, sweetness, and bitterness. The viscosity and hardness of VRP-IC were 13,117 mPa·s and 2,258 N/m², respectively. The total amino acid content of VRP-IC was 3,537.2 mg/100 g, with the maor amino acids being aspartic acid and glutamic acid. The mineral contents of VRP-IC per 100 g were as follows: 114 mg calcium, 70.3 mg phosphorus, 79.1 mg potassium, and 0.23 mg iron. These were all higher than those of the controls. The major fatty acids of VRP-IC were 16:0, 18:1n-9, and 18:2n-6, which were identical to those of the controls. The digestibility of VRP-IC was 86.4%, which was similar to those of the controls.

• 한국양식학회지
• /
• 제10권2호
• /
• pp.153-161
• /
• 1997

본 연구는 잉어 사료의 어분 대체사료원으로서 피혁분과 육골분의 이용 가능성과 어분단백질 대체 범위를 결정하고 잉어용 어분대체품 개발의 기초자료를 제공하고자 실시되었다. 본 실험사료의 단백질원으로 동물성으로는 북양어분(White Fish Meal, WFM), 피혁분(Leather Meal, LM), 육골분(Meat & Bone Meal, MBM)을 식물성으로는 대두박(Soybean Meal, SM), 콘글루텐밀(Corn Gluten Meal, CGM)을 사용하였고, 조단백질 함량은 39.5%, 가용성 에너지는 15.3 KJ/g으로 동일하게 맞추었고, 실험사료내의 어분대체 비율은 다음과 같다 : diet 1 (대조구), 100% white fish meal (WFM, control) : diet 2, 75% WFM+25% leather meal (LM) : diet 3, 50% WFM+50% LM : diet 4, 75% WFM+25% meat and bone meal (MBM) : diet 5, 50% WFM+50% MBM. 일주간의 먹이붙임후에 잉어는 각 실험군별 평균어체중 10 g이 되도록 하여 3반복으로 무작위 배치하였고, 첫 번째와 두 번째 4주간의 사육기간이 끝난 8주후에는 평균어체중이 28 g이 되도록 재배치하여 세 번째 4 주간동안 사육하였다. 사료는 1일 3회 어체중의 2.7-4%로 12주간 공급하였다. 첫 번째와 두 번째 4주후 사료 1(대조구)과 2의 증체율은 유의적 차이가 없었으나(P>0.05), 사료 3, 4, 5는 대조구보다 유의적으로 낮았다(P<0.05). 이와는 달리 세 번째 4주후에 있어서는 대조구와 비교하여 전 사료구에서 유의적인 차이가 없었다(P>0.05). 전어체 일반성분 분석결과, 8주의 수분과 12주의 조지방을 제외하고는 모든 사료구의 일반성분치(수분, 조단백, 조지방, 조회분)에 있어서 유의적 차이가 없었다(P>0.05). 본 실험 결과, 사료내 동물성 단백질원으로 피혁분과 육골분은 충분한 먹이붙임후에 어분단백질의 50%까지 대체 가능함을 보여 주었다.