• 제목/요약/키워드: Sweet fish

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Ensiled and Dry Cassava Leaves, and Sweet Potato Vines as a Protein Source in Diets for Growing Vietnamese Large White×Mong Cai Pigs

  • Ly, Nguyen T.H.;Ngoan, Le.D.;Verstegen, Martin W.A.;Hendriks, Wouter H.
    • Asian-Australasian Journal of Animal Sciences
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    • 제23권9호
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    • pp.1205-1212
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    • 2010
  • The aim of the present study was to evaluate the effects of replacing 70% of the protein from fish meal by protein from ensiled or dry cassava leaves and sweet potato vines on the performance and carcass characters of growing F1 (Large White${\times}$Mong Cai) pigs in Central Vietnam. Twenty-five crossbred pigs (Large White${\times}$Mong Cai) with an initial weight of 19.7 kg (SD = 0.84) were allocated randomly to five treatment groups with 5 animals per group (3 males and 2 females). Pigs were kept individually in pens ($2.0{\times}0.8\;m$) and fed one of five diets over 90 days. The control diet was formulated with fish meal (FM) as the protein source while the other four diets were formulated by replacing 70% of fish meal protein by protein from ensiled cassava leaves (ECL), dry cassava leaves (DCL), dry sweet potato vines (DSPV) or ensiled sweet potato vines (ESPV). Animals were fed their diets at 4% of BW. Results showed that final BW, ADG, DMI and feed conversion ratio (FCR) among the experimental treatments were not significantly different (p>0.05). ECL or DCL and ESPV reduced feed cost per unit gain by 8-17.5% compared to the fish meal diet. There were no significant differences in carcass characters among the diets (p>0.05). Lean meat percentages and protein deposition ranged 41.5-45.8% and 40.2-52.9 g/d, respectively. Using ensiled or dry cassava leaves and sweet potato vine can replace at least 70% of the protein from fish meal (or 35% of total diet CP) without significant effects on performance and carcass traits of growing (20-65 kg) pigs. Including cassava leaves and sweet potato vines could improve feed cost and therefore has economic benefits.

Preferential Incorporation of Fatty Acids in the Testis and Ovary of Cultured and Wild Sweet Smelt Precoglossus altivelis

  • Jeong, Bo-Young;Jeong, Woo-Geon;Moon, Soo-Kyung;Toshiaki Ohshima
    • 한국어업기술학회:학술대회논문집
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    • 한국어업기술학회 2001년도 춘계 수산관련학회 공동학술대회발표요지집
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    • pp.99-100
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    • 2001
  • Although cultured sweet smelt production recently have been rapidly increased from 89 metric tons (M/T) in 1997 to 500M/T In 1999 in Korea, wild fish have been still used as broodstock for cultured fish seed. This is considered due to having higher sperm and e99 qualify in wild fish broodstock than cultured fish. However, capturing a number of wild sweet smelt broodstock might lead to decreasing of the production of wild fish, In truth, of which production has been greatly decreased so that a number of artificial juvenile have been stocked some rivers in Korea. (omitted)

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담수어(淡氷魚)의 식품학적(食品學的) 연구(硏究) -3. 은어, 누치, 쏘가리 및 밀어 배육(背肉)의 핵산관련물질(核酸關聯物質) 및 아미노산(酸) 조성(組成)- (Studies on the Food from Fresh Water Fish -3. Composition in Amino Acids and Nucleotides of the Dorsal Muscle of Some Fresh Water Fishes, Sweet Fish, Cornet Fish, Mandarin Fish and Read Fish-)

  • 성낙주;이응호;하봉석
    • 한국식품영양과학회지
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    • 제13권2호
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    • pp.163-168
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    • 1984
  • 우리나라의 하천에 분포(分布)하고 있는 담수어(談水魚)의 식품학적(食品學的)인 기초자료(基礎資料)를 얻고져 비교적(比較的) 희귀종(稀貴種)에 속(屬)는 은어, 누치, 쏘가리 및 밀어 배육중(背肉中)의 핵산관련물질(核驗關聯物質), 유리(遊離)아미노산(酸) 및 구성(構成)아미노산(酸)을 분석(分析)하였다. 핵산관련물질(核酸關聯物質)은 IMP가 월등히 많아 은어, 누치, 쏘가리 및 밀어 배육중(背肉中)에 $10.7{\sim}19.5{\mu}mole/g$의 범위였다. UMP 및 hypoxanthine은 $2.0{\mu}mole/g$ 이하였고. GMP와 inosine은 흔적량에 불과하였다. 그리고 AMP는 은어 배육(背肉) 및 밀어 배육(背肉)에서 각각 2.0, $2.7{\mu}mole/g$으로 검출(檢出)되었으나 누치와 쏘가리 배육(背肉)에서는 흔적량으로 검출(檢出)되었다. 유리(遊離)아미노산(酸) 조성(組成)을 보면 은어 배육(背肉)의 엑스분중(分中)에는 taurine 및 histidine이 각각 전체(全體)의 36.6%, 15.4%, 누치 배육(背肉)에는 taurine, glycine 및 histidine이 각각(各各) 21.2${\sim}$29.0%, 쏘가리 배육(背肉)에는 taurine, histidine 및 alanine이 각각(各各) 14.5${\sim}$31.8%, 밀어 배육(背肉)에는 taurine, proline 및 threonine이 9.1${\sim}$31.2%로서 비교적(比較的) 많은 함량(含量)이 검출(檢出)되었다. 구성(構成)아미노산(酸) 은어 배육중(背肉中)에는 glutamic acid, glycine, aspartic acid 및 lysine이 총(總) 구성(構成)아미노산(酸)의 44.0%, 누치 배육중(背肉中)에는 43.5%, 그리고 쏘가리 및 밀어배육중(背肉中)에는 glutamic acid, aspartic acid, lysine 및 leucine이 각각(各各) 43.3%와 43.1%를 점유(占有)하고 있었다. glutamic acid는 어종(魚種)에 관계(關係)없이 그 함량(含量)이 가장 많았다.

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Artemia 공급 단계에서 은어(Plecoglossus altivelis), 조피볼락(Sebastes schlegeli ), 감성돔(Acanthopagrus schlegeli ) 및 넙치(Paralichthys olivaeus)의 소화효소 활성 (Comparative Study of Digestive Enzyme in the Artemia Feeding Step of the Sweet Fish Plecoglossus altivelis, Rock Fish Sebastes schlegeli, Black Seabream Acanthopagrus schlegeli, and Olive Flounder Paralichthys olivaeus)

  • 이배익;김이청;김근업;권오남
    • 한국수산과학회지
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    • 제45권1호
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    • pp.50-55
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    • 2012
  • We compared the nutritional requirements of whole larvae of the black seabream Acanthopagrus schlegeli, sweet fish Plecoglossus altivelis, olive flounder Paralichthys olivaeus and rock fish Sebastes schlegeli. The larvae were 20, 30, 14 and 5 DAH (or spawning) of black seabream, sweet fish, olive flounder and rock fish, respectively. Specific ${\alpha}$-amylase activity (mU/mg protein) was highest (8,324.9 mU/mg protein) in rock fish larvae (P<0.05). Specific trypsin-like protease activity was highest (11,330.1 mU/mg protein) in black seabream larvae (P<0.05), which also exhibited the highest activity, 685.5 mU/mg dry weight (P<0.05). The specific activities per mg protein and mg dry weight of black seabream were the highest (187.4 mU/mg protein and 11.3 mU/mg dry weight, respectively) (P<0.05). A/P, P/L and A/L ratios of rock fish were 1.47, 90.3 and 133.1, respectively (P<0.05). We present here basic larval digestive enzymatic nutritional requirement data.

은어, Plecoglossus altivelis의 초기 생식소 형성 및 성분화 (Early Gonadogenesis and Sex Differentiation in Sweet Fish, Plecoglossus altivelis)

  • 방인철;박상용;이윤아;이철호;김성연;김경길
    • 한국양식학회지
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    • 제13권3호
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    • pp.215-222
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    • 2000
  • 은어, plecoglossus altivelis의 생리학적 성전환을 위한 기초적인 연구로 성분화 과정을 조직학적으로 조사하였다. 부화 후 2일째 (평균전장 : 0.66 cm)에 중신관과 장 사이의 장간막에 원시생식세포가 나타났으며, 부화 후 30일째(평균전장:1.29 cm)의 초기 생식소는 genital ridge를 형성하는 원시 생식소 구조를 나타내었다. 부화 후 90-100일째 (평균전장:3.42 cm~4.50 cm)의 생식소는 암, 수로 분화가 이루어졌다. 정소는 부화 후 90일째 (평균전장:3.42 cm) 많은 정원세포들이 분포하고 정소 소관 (efferent duct, ED)이 관찰되었으며, 난소에서는 난소를 특징지을 수 있는 parovarian sac의 구조가 난소 가장자리로부터 나타났다. 부화 후 110일째 정소에서는 정소 소관의 수와 정원세포의 수가 점점 증가하였다. 부화 후 100일째 (평균전장: 4.5 cm) 난소에서는 난소를 특징지을 수 있는 parovarian sac이 형성되기 시작하였고, 부화 후 120일째 (평균전장:5.45 cm) 난소에서는 난소 소염의 형성 및 분리와 함께 난모세포가 소엽 내에 가득 차기 시작하여 기능적 난소의 형태로 분화하였다. 이상의 결과 본 종은 초기 성분화 과정에 자성 단계를 거치지 않고 정소와 난소로 분화되는 분화형 자웅이체였다.

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Effects of Dietary Perilla Oil and Enteromorpha compressa Meal on Growth, Fatty Acid Composition and Hematology of the Cultured Sweet Smelt (Plecoglossus altivelis)

  • Jeong Woo-Geon;Moon Soo-Kyung;Jeong Bo-Young;Jang Whei-Sook;Kim In-Soo;Maita Masashi;Lim Dong-Hoon;Lee Sang-Min
    • Fisheries and Aquatic Sciences
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    • 제7권1호
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    • pp.1-9
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    • 2004
  • Sweet smelt (Plecoglossus altivelis) were fed four different diets supplemented with either perilla oil $(2.0\%)$ rich in 18:3n-3 (CP), and perilla oil and Enteromorpha compressa meal $(2.0\%)$ (CPA), soybean oil rich in 18:2n-6 (CO), or soybean oil and algal meal (CA) for 4 weeks. The growth performance, fatty acid composition of muscle, plasma lipid peroxidation and blood components of the sweet smelt were then determined. The specific growth rate and feed efficiency in the fish fed the CPA diet were the highest, while the other groups showed similar results. The fatty acid composition of muscle in sweet smelt reflected the dietary lipids; 18:3n-3 was higher in the fish fed the CP and CPA diets, and 18:2n-6 was higher in the fish fed the CO and CA diets. The other fatty acid profiles presented almost no differences with respect to the diet composition. The fish fed the CA, CP and CPA diets contained significantly lower levels of triglyceride, thiobarbituric acid-reactive substances and hydroxyl radical in their plasma than that fed the CO diet. Phagocytic activity was the highest in the fish fed the CPA diet and higher in those of the fish fed the CP and CA diets compared to the CO diet group. The results from this study suggest that a dietary supplement of $2.0\%$ perilla oil together with $2.0\%$ E. compressa meal may improve the growth and health of cultured sweet smelt.

전남 여수지역 산업체에 근무하는 근로자의 식품 및 음식의 기호도 조사 (Food and Meal Preference of Workers in the Chonnam Yeosu Industrial Area)

  • 한현미;최일수;정복미
    • 대한지역사회영양학회지
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    • 제14권4호
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    • pp.392-405
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    • 2009
  • This study was conducted to investigate food and meal preference of workers (435 male and 212 female) in the Chonnam Yeosu industrial area. The results of the survey were analyzed by principal components analysis. The results were obtained as follows: 19.3% of the subjects were twenties, 28.3% were thirties, 28.8% were forties and 23.7% were fifties. Females liked rice rolled in dried laver, rice cakes, janchi-noodle and breads, on the other hand males liked thick beef soup, loach soup, an eel stew and soju. The young liked instant noodles, fried chicken, sweet and sour pork, pork cutlet, pizza, hamburger, ham, sausage and fruit beverage, on the other hand the old liked a fish pot stew, loach soup, eel stew, fish boiled in soy with spices, panfried fish, sea slug, ascidian, bunder, green laver and boiled burdock-lotus root in soy. Females who are young liked hamburger and sweet and sour pork whereas males who are young liked instant noodles, pork cutlet, ham, sausage and fruit beverage. Aged females liked fish boiled in soy with spices, panfried fish, bunder, green laver, boiled burdock-lotus root in soy whereas aged males liked a fish pot stew, loach soup, eel stew, sea mussel and oysters. Boiled rice was located within the middle irrespective of age and sex, but noodles, wheat flour meal, fast foods and fruits were situated at the young female side. Aged males liked soup and pot stew. Young males liked meats and eggs whereas fish and shellfish and kimch were located at the aged people side. Aged females liked sea weeds and most people disliked vegetables but females liked some vegetables irrespective of age. Processed foods, salted foods, and alcohol were generally disliked foods by subjects but males liked those foods. Soybean curd was liked more males than females, and teas, except coffee, was liked by males. (Korean J Community Nutrition 14(4) : 392${\sim}$405, 2009)

Perception of sugar reduction, nutrition education, and frequency of snacking in children by the self-perceived sweet dietary habits of mothers in Busan

  • Yeon, Jee-Young;Lee, Soon-Kyu
    • Nutrition Research and Practice
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    • 제10권5호
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    • pp.546-554
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    • 2016
  • BACKGROUND/OBJECTIVES: The aim of this study was to investigate the perception of sugar reduction, nutrition education, and frequency of snacking in children according to the self-perceived dietary preferences for sweet taste by mothers in Busan. SUBJECTS/METHODS: A total of 277 mothers were surveyed, and their perceptions of sugar reduction and the frequency of snacking in children were assessed using a questionnaire. The subjects were classified into either a sweet (n = 91) or an unsweet (n = 186) group according to their self-perceived preferences for a sweet taste. RESULTS: In the sweet group, the results for sweet products were sweetened ice (86.8%), confectionery (74.7%), processed milk (73.6%), carbonated beverages (71.4%), and fermented milk (53.9%). In the unsweet group, the results were sweetened ice (88.7%), carbonated beverages (78.5%), processed milk (75.8%), confectionery (69.4%), and fermented milk (50.5%). The necessity of sugar intake reduction was high in both groups (sweet = 89.0%, unsweet = 82.8%). Beverage purchases after identifying the nutrition labeling was significantly lower in the sweet group than in the unsweet group (P < 0.05). The reasons for the beverage purchases instead of water were "habitually" (50.5%) and "like sweet taste" (25.3%) in the sweet group (P < 0.01). Snacking in children was significantly higher in the sweet group based on the increased frequencies of carbonated drinks (P < 0.01), fast food (P < 0.001), candy and chocolate (P < 0.05), crackers (P < 0.01), ramen (P < 0.01), and fish paste/hotdogs (P < 0.01). The frequency of purchase education after identifying the nutrition labeling was significantly lower in the sweet group than in the unsweet group (P < 0.01). CONCLUSIONS: These findings suggest that a perception of sugar reduction and practical nutrition education aimed at reducing the sugar intake are necessary to improve dietary habits.

Influences of Sargassum meal in the diets on growth and body composition of ayu (Plecoglossus altivelis) reared in seawater

  • Lee, Sang-Min;Kim, Kyong-Duck;Lim, Tae-Jun;Park, Huem-Gi;Lee, Jong-Kwan;Lim, Yong-Su
    • 한국어업기술학회:학술대회논문집
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    • 한국어업기술학회 2001년도 추계 수산관련학회 공동학술대회발표요지집
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    • pp.255-256
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    • 2001
  • Ayu (or called sweet fish or sweet smelt), Plecoglossus altivelis, is a diadromous fish migrated from freshwater to brackish water to spawn, hatched larvae migrated go to seawater and then back to freshwater to grow. In Asia, it has very high consumers demand due to its good taste and Savor. However, population of this species is currently decreasing because of river pollution, over-fishing and dam construction. (omitted)

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Determining the Reuse of Frying Oil for Fried Sweet and Sour Pork according to Type of Oil and Frying Time

  • Park, Jung Min;Koh, Jong Ho;Kim, Jin Man
    • 한국축산식품학회지
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    • 제40권5호
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    • pp.785-794
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    • 2020
  • Food Codex regulations have set freshness limits for oils used to fry food, such as potato and fish products, and fried food itself; however, no such freshness limits have been set for meat products, such as sweet and sour pork. The freshness standard suggest that acid values (AVs) and peroxide values (POVs) for frying oil should be less than 2.5 and 50, respectively, whereas AVs and POVs for common fried food should be less than 5.0 and 60, respectively. Therefore, in this study, we investigate the effect of the number of frying cycles on oxidation-promoted changes in the oils used to fry sweet and sour pork and fried food itself during repeated frying over 10 d by determining their AVs and POVs, which were found to be highly correlated. Soybean, canola, palm, and pork lard oils could be reused approximately 37, 32, 58, and 87 times, respectively, to fry sweet and sour pork based on oil freshness, and 78, 78, 81, and 286 times, respectively, based on the freshness of fried food. Our data may help establish food-quality regulations for oils used to fry animal-based foods.