• 제목/요약/키워드: Total length by Weight

검색결과 785건 처리시간 0.02초

무지개송어, Oncorhynchus mykiss 자어의 난황흡수 및 초기성장에 관한 연구 (A Study on the Yolk Absorption and Early Growth in the Alevin of Rainbow Trout, Oncorhynchus mykiss)

  • 박인석;임재현;장창익
    • 한국어류학회지
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    • 제8권1호
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    • pp.49-55
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    • 1996
  • 무지개송어, Oncorhynchus mykiss 난황자어의 부상기 이전까지의 부화일수에 따른 전장(TL)성장식은 $TLt=2.7e^{-1.24{\cdot}e^{-0.11t}}(r^{2}=0.66)$, 전중(TW)성장식은 $TWt=1.8e^{-2.03{\cdot}e^{-0.11t}}(r^{2}=0.66)$, 체세포중량(SW)성장식은 $SWt=1.8e^{-5.41{\cdot}e^{-0.13t}}(r^{2}=0.83)$로 나타났다. 부화일수 경과에 따른 난황장, 난황고, 난황부피는 감소를 나타내는 직선식이였다. 전중-전장, 체세포중량-전장, 난황장-전장, 난황고-전장, 난황부피-전장, 난황중-전장, 난황중-전중, 난황중-난황고 및 난황중-난황장의 성장형질간의 상대성장식은 부화일 경과에 따라 난황홉수 경향을 반영하였다.

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여름철 거문도 남부해역에서 어획된 말쥐치의 체장과 체중 조성 (On the Total Length and Body Weight of the File File Fish , Navodos Modestus Caught in the Sonthern Sea Area of Komundo Is . During Summer)

  • 염말구
    • 수산해양기술연구
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    • 제22권4호
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    • pp.71-74
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    • 1986
  • The author tried to clarify the distribution of the total length and body weight of the file h, Navodos modcstus, caught by trawl net during July, 1984 in the southern sea korea. Among the catches of five times fishing operation, 1540 individuals were randomly sampled for the measurement. The results are summarized as follows; " The distribution of total length showed bimodal type, wbich was able to analyzed into two normal distributions N(17.46, 1. 02^2) and N(22.09, 1. 77^2). And smaller group was much than older one. The age of the sample estimated from the total length distribution of. smaller group was 1. 5 to 2, and the larger group 2. 5 to 4. The relationship between the total length and the body weight can be presented as following equation: $$W=0.01726 L^{2.8507}$$ ' or $$W= 0.01109 L^{3.0}$$ or $$W= 0.01109 L^{3.0}$$.

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그물실 종류에 따른 서해안 문치가자미 자망의 어획성능 (Relative efficiency of monofilament and multifilament nylon gill net forMarbled sole (Pleuronectes yokohamae) in the western sea of Korea)

  • 김인옥;박창두;조삼광;김현영;차봉진
    • 수산해양기술연구
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    • 제47권4호
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    • pp.290-299
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    • 2011
  • Field tests were carried out with five different mesh sizes (86.6, 101.0, 121.2, 137.7, 151.5mm) to study the relative efficiency of monofilament and multifilament gill net for Marbled sole, Pleuronectes yokohamae, in the western sea of Korea, 2007-2009. The relative efficiency was analyzed by length distribution, catch in number, catch in weight and weight per individual for Marbled sole. Statistical T-test was done to verify the efficiency between two gears. In the field tests, the total body length range, catch in number and weight of Marbled sole was 15.8-48.2cm, 728 and 254,939g, respectively. During the field tests, Marbled sole less than 15cm length which is prohibition size of fishing was not caught, but the caught number of Marbled sole less than 19.5cm length which is first maturity length was 13 (1.8%) and the caught number of Marbled sole more than 19.5cm was 715 (98.2%). Catches of monofilament gill net was average 1.4 times more efficient than multifilament gill net. The weight per individual and total length by mesh sizes in the two gears tended to gradually increase according to mesh size increasing. But there was little difference of weight per individual and total length by mesh sizes between two gears.

소음.진동에 따른 참전복(Haliotis discus hannai)의 전중량 및 먹이섭식량 변화 (The Change of Total Weight and Food Consumption of Abalone, Haliotis discus hannai under a Vibration and Noise)

  • 정형택;김영식;최상덕
    • 한국환경과학회지
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    • 제13권6호
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    • pp.581-589
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    • 2004
  • This paper describes the amount of food consumption and the change of total weight of abalone under a vibration with noise that can be occurred due to piling work. This experiment was conducted in the aquarium in Yosu National University. In normal situation the juvenile stage shell's(total length is 1~1.5cm) amount of food consumption was 0.81g, the middle stage shell(total length is 3~3.5cm) was 13.61g, and the adult stage shell (Total length is 7~7.5cm) was 43.l9g per 5 organisms in 24 hours, while the experimental group was observed low numerical value compared normal groups. The abalones' food consumption and total weight in both groups, the intermittent and continuance impact with noise and vibration, was reduced during this experiment. The abalones' food consumption and total weight in the experimental groups without vibration were recorded slightly high numerical value than the experimental groups with noise and vibration. Based on this experimental data we could conjecture the noise and vibration are harmful factors to bring up a physiological stress to abalones. Especially, the vibration impact by piling works could produce a considerably unfavorable effect to the abalones than noise impact.

식물생장조절제 Uniconazole-P에 의한 생육억제와 목초의 종자 생산 (Plant Growth Regulation by Uniconazole-P Application and its Effects on Seed Production in Pasture Plants)

  • 이주삼
    • 한국초지조사료학회지
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    • 제18권4호
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    • pp.291-302
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    • 1998
  • 식물생장 조절제 Uniconazole-P의 처리가 초지조건에서 목초의 생육억제와 종자생산에 미치는 영향을 검토하였다. 초종은 화본과 목초 2초종(orchardgrass와 timothy)과 두과목초 2초종(red clover와 alfalfa)을 공시하였고, Uniconazole-P의 처리농도는 대조구, 20ppm구, 40ppm구의 3처리로 하여, 화본과 목초는 유수분화기에, 두과목초는 개화시기(開花始期)에서 엽면산포하였다. 본 실험에서 얻어진 결과를 요약하면 다음과 같다. 1. Uniconazole-P의 처리효과는 처리농도, 초종 및 생육단계에 따라서 차이가 인정되었다. 2. Uniconazole-P의 처리는 출수초기의 화본과 목초에서 초장과 간장이 단축되었고, 수중과 엽록소 함량을 증가시켰다. 3. Uniconazole-P의 처리는 종자 결실기의 orchardgrass에서 수수, 1경중, 수중, 1수중 및 종자중을 증가시켰고, timothy에서는 초장의 단축과 수수, 1수중, 수중, 종자중 및 수확지수를 증가시켰다. 4. Uniconazole-P의 처리는 개화초기의 red clover와 alfalfa 2초종 모두 초장과 총절간장을 단축시켰지만, 총분지장과 엽록소 함량을 증가시켰다. 특히 red clover에서는 화수와 화중의 증가가 현저하였다. 5. Uniconazole-P의 처리는 종자 결실기의 red clover에서 초장을 단축시켰고, 화중과 종자중을 증가시켰으며, alfalfa에서는 초장을 단축시키고 화중, 종자중 및 수확지수를 증가시켰다. 6. Uniconazole-P의 처리에 의한 화본과 목초의 종자 생산과정은 1) 출수초기에서 초장과 간장의 단축, 2) 출수초기와 종자 결실기에서 수수와 l수중의 증가, 3) 종자 결실기에서 단위면적당 수중과 종자중의 증가 및 수확지수의 증가로 설명할 수 있다. 7. Uniconazole-P의 처리에 의한 두과목초의 종자 생산과정은 1) 개화초기에서 초장과 총절간장의 단축과 분지수와 총분지장의 증가, 2) 개화초기와 종자 결실기에서 화수와 화중의 증가, 3) 종자 결실 기에서 종자중과 수확지수의 증가로 설명할 수 있다.

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신체계측방법에 의한 거동이 제한된 노인들의 신장과 체중추정 (Estimating Stature and Weight from Anthropometry for the Elderly Who are Limited in Mobility)

  • 한경희
    • Journal of Nutrition and Health
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    • 제28권1호
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    • pp.71-83
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    • 1995
  • The purpose of the study was to develop generalized equations for estimating stature and weight for the nonambulatory elderly persons. Height weight recumbent knee height total ann length, midarm, waist and calf circumferences, triceps and subscapular skinfolds were measured from over 60 years old 315 ambulatory elderly. The equations to predict stature and weight were derived from participants in the validation sample and were applied to the participants in the cross-validation to test the accuracy and validity of equations. Stature and weight were significantly and negatively associated with age of women and similar patterns observed in men but associated to a slight degree. Knee height and total arm length were highly correlated with stature but the majority of the variances in stature was accounted for by knee height for both the men and women. In men, waist circumference was the most significantly correlated with weight and am, calf circumferences and so forth. But in women arm circumference was the highest then waist and calf circumference in order. The possible predictor variables to estimate of stature were knee height total arm length and age for both elderly men and women. Predictor variables to estimate of weight were recumbent measures of waist am, calf circumferences and knee height for both sexes. Inclusion of skinfold thickness measurements did not improve the prediction power of estimation for weight. When both equations developed from the present study and Chumlea's study were applied to cross-valida-tions samples, the equations derived from present study showed better accuracy and validity. The presentation of prediction equations using two, three, or four recommended measurements allows the selection of an equation based upon the measurements that are possible to collect on an individual basis.

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Effects of Substituting Soybean Meal for Sunflower Cake in the Diet on the Growth and Carcass Traits of Crossbred Boer Goat Kids

  • Palmieri, Adriana Dantas;Oliveira, Ronaldo Lopes;Ribeiro, Claudio Vaz Di Mambro;Ribeiro, Marinaldo Divino;Ribeiro, Rebeca Dantas Xavier;Leao, Andre Gustavo;Agy, Mariza Sufiana Faharodine Aly;Ribeiro, Ossival Lolato
    • Asian-Australasian Journal of Animal Sciences
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    • 제25권1호
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    • pp.59-65
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    • 2012
  • The present study was conducted to determine the best level of substitution of soybean meal by sunflower cake in diets for kids through the evaluation of quantitative carcass traits. Thirty-two Boer kids X 1/2 NDB (no defined breed), males, non-castrated, with 4 months of age and initial body weight of $15{\pm}3.2$ kg, were randomly assigned to individual pens. The treatments contained four substitution levels of soybean meal by sunflower cake (0, 33, 66 and 100% DM). At the end of the experimental period, the animals were slaughtered. There was no influence of the treatments on any of the mean values of the evaluated measures (p>0.05): 21.78 kg (body weight at slaughter), 8.65 kg (hot carcass weight), 8.59 kg (cold carcass weight), 40.27% (hot carcass yield), 39.20% (cold carcass yield), 7.73 $cm^2$ (rib eye area), 46.74 cm (carcass outer length), 45.68 cm (carcass internal length), 36.92 cm (leg length), 26.04 cm (leg perimeter), 48.66 cm (hind perimeter), 58.62 cm (thoracic perimeter), 0.20 (carcass compactness index), 68.48% (total muscle of the leg), 2.79% (total leg fat), 55.19% (subcutaneous leg fat), 28.82% (total bone), 81.66 g (femur weight), 14.88 cm (femur length), 0.38 (leg muscularity index), 2.53 (muscle:bone ratio) and 33.42 (muscle:fat ratio). The substitution of soybean meal by sunflower cake may be recommended up to a level of 100% without alterations to quantitative carcass traits.

한국 담수어류 10종의 상대 무게지수(Relative weight index) 활용을 위한 표준 길이-무게 상관관계(Standard Length-Weight relationships) 산출 (Estimation of Standard Length-Weight Relationships of 10 Freshwater Fish in the South Korea for Application of Relative Weight Index)

  • 백승호;박상현;김정희
    • 한국어류학회지
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    • 제32권2호
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    • pp.55-62
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    • 2020
  • 상대 무게 지수(Relative weight index, Wr)는 어류의 표준 무게와 실측 무게의 비율을 산출하는 지수로써 영양상태를 평가하는데 활용된다. 본 연구의 목적은 상대 무게 지수 활용을 위해 국내 담수어류 10종의 표준 무게 산출을 위한 길이-무게 상관관계(표준 LWRs)를 산출하는 것과, 상대 무게 지수 산출 결과에 대한 빈도 분포를 분석하는 것이다. 총 141개 조사 지점에서 798회 어류 채집을 통해 확보한 어류의 길이-무게 데이터를 활용하여 LWRs를 산출하였다. LWRs는 매개변수 a와 b값을 95% 신뢰한계(confidence limits)와 함께 제시하였으며, 모든 종에서 결정계수(r2)는 0.9 이상으로 산출되었고, b값은 Froese (2006)의 예상 범위에 포함되었다. 상대 무게 지수 산출 결과에 대한 빈도 분포 분석은 각 종별로 10~90 백분위수를 10 단위로 산출하여 제시하였으며, 이는 상대 무게 지수를 활용하여 어류의 영양상태를 정량적으로 평가하기 위한 기준으로 활용될 수 있을 것으로 판단된다.

산성 전해수가 콩나물의 생육에 미치는 영향 (Effect of Electrolyzed Acidic Water on the Growth of Soybean Sprout.)

  • 윤동준;이정동;강동진;박순기;황영현
    • 생명과학회지
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    • 제14권5호
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    • pp.809-814
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    • 2004
  • 산성 전해수를 이용하여 콩나물을 생육시켰을 때 콩나물 관련 주요형질들의 반응을 조사하여 콩나물 재배수로 사용 가능성을 검토하였다. 산성전해수로 생육시킨 콩나물은 전체길이,뿌리길이, 하배축 길이 등이 짧아졌고, 하배축의 두께, 콩나물 개체당 무게 등은 늘어 난 것으로 평가되었다. 하배축 횡단면 관찰에서 산성전해수에서 자란 콩나물의 하배축내 세포가 대조구에 비해 커져 하배축의 두께가 두꺼워진 것으로 평가되었으며, 생육일수별 콩나물 주요 특성에서 콩나물 전체길이는 산성전해수에서 자란 콩나물의 전체 길이가 더 짧았으며, 수돗물에서 자란 콩나물은 생육 후 5일째 이후에 급격히 길이 신장을 하였으나 전해수에서 자란 콩나물은 길이 신장은 거의 변화가 없었다. 하배축의 신장은 콩나물 전체길이와 같은 경향을 보였는데 생육 후 5일째에는 품종간 신장의 차이가 관찰되었다. 뿌리 생육 특성은 전해수에서 생육시킨 콩나물은 생육 4일째에서 11일째까지 뿌리 길이의 차이가 없었으나 수돗물에서 생육시킨 콩나물의 뿌리길이는 생육일수가 증가함에 따라 급격하게 신장을 보였다. 하배축의 두께는 산성전해수에서 생육시킨 콩나물이 수돗물에서 생육시킨 콩나물보다 더 두꺼웠는데 생육 후 5일째까지 두께가 증가하다가 생육 후 5일째 이후부터 다소 감소하였으며, 콩나물 자엽의 무게는 산성전해수에서 생육시킨 콩나물의 자엽무게가 생육일수가 증가할수록 현저하게 증가하였으나 수돗물에서 생육시킨 콩나물은 생육 후 7일째까지는 거의 변화를 보이지 않았다. 콩나물의 생체중은 전해수에서 생육시킨 콩나물이 재배 후 7일 까지는 무거웠으나 11일째는 산성전해수와 수돗물에서 자른 콩나물의 생체중이 거의 비슷하였다.

Enhancing Effect of Shimizuomyces paradoxus on Seed Germination and Seedling Growth of Canola, Plant Growth of Cucumber, and Harvest of Tomato

  • Sung, Gi-Ho;Shrestha, Bhushan;Park, Ki-Byung;Han, Sang-Kuk;Sung, Jae-Mo
    • Mycobiology
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    • 제39권1호
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    • pp.7-11
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    • 2011
  • Shimizuomyces paradoxus showed no inhibitory effect against plant pathogen fungi, such as Fusarium oxysporum f. sp. lycopersici and Alternaria solani. The S. paradoxus culture filtrate showed higher seed germination and seedling growth rates in canola than distilled water and potato-dextrose broth. A conidial suspension of $1.0{\times}10^4/mL$ resulted in the highest growth stimulating effects on total plant length, and fresh and dry weight of shoots and roots in cucumber, when compared to the highest suspension concentration. Total plant length and shoot weight increased with the foliar spray treatment, and root length and root weight increased by simultaneous treatments of soil drenching and foliar spray in cucumber. Lower concentrations of the S. paradoxus conidial suspension increased the harvest of tomato fruit.