• Title/Summary/Keyword: Protein Feeding

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Effects of Dietary Supplementation of Scoria on Growth and Protein Digestibility in Juvenile Parrot Fish Oplegnathus fasciatus and Olive Flounder Paralichthys olivaceus (사료 내 송이의 첨가가 돌돔 Oplegnathus Fasciatus과 넙치 치어 Paralichthys olivaceus의 성장 및 단백질 소화율에 미치는 영향)

  • Ko, Gyung-Yong;Lim, Se-Jin;Kim, Sung-Sam;Oh, Dae-Han;Lee, Kyeong-Jun
    • Journal of Aquaculture
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    • v.21 no.3
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    • pp.133-138
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    • 2008
  • We evaluated the effects of dietary supplementation of scoria on growth performances and apparent protein digestibility in juvenile parrot fish Oplegnathus fasciatus and olive flounder Paralichthys olivaceus. In experiment, parrot fish at initial average weight of $7.6{\pm}0.01g(mean{\pm}SD)$ were divided into 9 groups(three groups per dietary treatment) and fed one of three isonitrogenous diets which contained 0%, 1% and 2% of scoria, respectively. Experiment was conducted with juvenile olive flounder to demonstrate the improved apparent digestibility of protein found in the experiment. Five experimental diets were formulated to contain different levels of scoria: Diet 1(control), 0% scoria; diet 2, 1% scoria; diet 3, 2% scoria; diet 4, 3% scoria; and diet 5, 4% scoria. After 9 weeks of feeding trial(Exp), no significant differences were observed on growth performances between Scoria 2% and the control group. However, the growth was significantly lower in scoria 1% compared to that of the control group. Hematological parameters were not affected by the supplementation of scoria. Interestingly, apparent protein digestibility was improved by dietary supplementation of scoria both in parrot fish and olive flounder. The findings suggest that dietary supplementation of 2-3% scoria is optimum levels in order to improve the protein digestibility in the diets for juvenile parrot fish and olive flounder.

Possible Use of the Dietary Fish Meal Analogue in Juvenile Korean Rockfish, Sebastes schlegeli (치어기 조피볼락에 있어 사료내 어분대체품의 이용 가능성)

  • KIM Kang-Woong;Bai Sungchul C.
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.32 no.2
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    • pp.149-154
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    • 1999
  • A 16-week feeding trial was conducted to determine the amount of fish meal analogue (FMA) that can be replacing white fish meal (WFM) protein in Korean rockfish. Five experimental diets were formulated on isonitrogenous and isocaloric basis of $50\%$ crude protein and 15.6 KJ/g diet. The graded level of replacement of PM by Em on the basis of crude protein were as follows : Diet 1($100\%$ WFM), Diet 2($87.5\%$ WFM : $12.5\%$ FMA), Diet 3 ($75\%$ WFM : $25\%$ FMA), Diet 4($75\%$ WFM : $25\%$ FMA+2 EAAs), Diet 5 ($50\%$ WFM : $50\%$ FMA+2 EAAs). Methionine and Iysine were selected for 2 essential amino acids (EAA) to study the effect of adding EAA to the diets 4 and 5. Weight gain (WG), feed fed efficiency (FE) and protein efficiency ratio (PER) of fish fed diet 3, 4 and 5 were significantly lower (P< 0.05) than those of fish fed the control ($100\%$ WFM),while that of fish fed diet 2 was not significantly different diet(P>0.05) from those of fish fed the control diet. WG, FE and PER of fish fed diet 4 were significantly higher (P<0.05) than those of fish fed diet 3, but lower than those of fish fed the control diet. Therefore, these results indicated that FMA protein could substitute WFM protein up to $12.5\%$ without 2 EAAs supplementation in Korean rockfish. And, dietary supplementation of 2 EAAs could be benetficial when FMA is utilized as a fish meal replacer in juvenile Korean rockfish.

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Histopathological effect of experimental feeding of melamine and cyanuric acid in kidney of crucian carp (Carassius carassius) (Melamine과 cyanuric acid의 혼합투여가 붕어(Carassius carassius)의 신장에 미치는 조직병리학적 영향)

  • Wang, Seong-Jin;Heo, Gang-Joon
    • Korean Journal of Veterinary Research
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    • v.50 no.4
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    • pp.259-264
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    • 2010
  • Melamine is an organic base and a trimer of cyanamide which contains 66% nitrogen by mass, but it was sometimes illegally added to food products in order to enhance the apparent protein content for the bigger profit. Many Chinese infants and pet animals fed melamine-containing formulas suffered acute kidney failure with renal crystal formation. Fish feeds were also recently found to be contaminated with melamine. This experiment has been designed to determine whether renal crystals can be experimentally induced in crucian carp (Carassius carassius) fed melamine and cyanuric acid (each at 400 mg/kg/day for 3 days) in combination, and to compare experimentally induced crystals with those from pet animals with triazine related renal failure. The results showed that all fish developed gold brown renal crystals arranged in radial spherulites in the renal tubules, similar to those detected in the pet animals.

Comparative Toxic Effects of Gramoxone in the D. melanogaster and its Sibling Species (노랑초파리(Drosophila melanogaster)와 그 동포종들에 있어서 Gramoxone의 독성에 관한 비교 연구)

  • Choi, Yung-Hyun;Lee, Won-Ho;Yoo, Mi-Ae
    • Journal of Environmental Science International
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    • v.1 no.2
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    • pp.1-13
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    • 1992
  • Physiological toxic and mutagenic effects of gramoxone in Drosophila melanogaster were invetigated. Gramoxone was highly toxic on the development, resulting in of lowering the viability and in prolongation of the developmental times. Adults treated with gramoxone during the developmental stages caused a lowering of the productivity and a little chinge in protein quantity. But the effect on the sex-linked lethal mutagenesis was found to be negative. The order of mortality causing ado리t stoa형e feeding to gramoxone in the D. melanogaster complex was like this ; D. mauritiana, D. sechellia, D. simulans and D. melanogasteu Two species of the D. yakuba complex were alike. Those results were more or less correlation with speciation of the D. melanogaster subgroup.

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Effect of Quartz Porphyry Supplemented Diet on Clinical Chemical Parameters of Serum in White Java Sparrow (맥반석 첨가 식이가 백문조의 혈액 임상화학지수에 미치는 영향)

  • 차재영;조영수;임정부;홍상식;김대진
    • Journal of Life Science
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    • v.11 no.1
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    • pp.70-75
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    • 2001
  • Effect of Quartz porphyry(QP) on clinical chemical parameters of serum in male white java sparrow by feeding the basal diet(Control group) containing 3.0% QP(QP group) for 14 days was studied. Body weight gain, feed intake, the weight of the gizzard and the heart were not significantly different in the both groups. However, the weights of kidney and liver in the QP group were higher than in the control group. The contents of triglyceride, cholesterol, total protein, glucose, creatinine, blood urea nitrogen, uric acid and albumin, and the activities of glutamic oxaloacetic transaminase(GOT) and glutamic pyruvic transaminase(GPT) in serum were not significantly different in the both groups. The activity of alkaline phosphatase(ALP) in serum was higher in the QP group than in the control group.

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BODY COMPOSITION CHANGES IN CROSSBRED COWS AND MURRAH BUFFALOES DURING LACTATION

  • Jindal, S.K.;Ludri, R.S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.6 no.4
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    • pp.577-580
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    • 1993
  • Six lactating crossbred cows and six Murrah buffaloes, maintained under similar conditions of feeding and management were studied for body composition by the antipyrine dilution technique. Measurements were made at the start of the experiment when the animals had completed about 50 days in lactation and thereafter at monthly intervals up to 90 days of the experimental period. The percent body water estimates in both species at different time intervals did not change significantly. Percent body fat and protein content also remained unchanged. The correlation coefficient between body composition parameters and various hormones (growth hormone, insulin, $T_3$ and $T_4$) were generally low and non-significant. It was concluded that body composition studies using body water are not sufficiently sensitive to predict changes in body composition of lactating cows and buffaloes and/or the changes in body composition during lactation are not very drastic.

The Effects of Natto Mucilage on Serum Nitrogen Compounds in Rats (낫도(Natto) 점질물이 흰쥐의 혈청 질소화합물에 미치는 영향)

  • Kim, Song-Chon;Kim, Man-Soo
    • Journal of the Korean Applied Science and Technology
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    • v.19 no.4
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    • pp.320-326
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    • 2002
  • Natto, one of Japanese traditional food is made from steamed whole soybeans fermented with Bacillus natto. In this study, the effects of Natto mucilage- feeding on griwth, organ weight and serum nitrogen compounds of rats were investigated. Male rats in Sprague-Dawley strain were fed on basal diets supplemented with aqueous Natto mucilage of several percentages for 10 weeks. Natto mucilage had no significant effects on the body and organ weights. The levels of GOT, GPT, LDH. and total bilirubin in serum of rats fed Natto mucilage diets were significantly lower than those in the control group ' The levels of total protein and albumin were higher than those in the control group. The level of calcium in serum indicates a growing tendency. but creatinine, uric acid, and BUN had declining. And the most component of free am1no acids in Natto mucilage were glutamin acid.

Recent Updates of Commercially Available Infant Formulas in Korea (국내 시판 영유아 조제유의 종류 및 적응증의 최신 지견)

  • Uhm, Ji Hyun
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.11 no.sup1
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    • pp.7-14
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    • 2008
  • Special formulas are those in which one of the basic nutrients (usually the protein and/or carrbohydrate) has been changed to an alternative nutrient that an individual baby may better tolerate. The following are specialized formulas : Soy formulas, hypoallergenic formulas, Lactose free formulas, Premature baby formulas, Low phosphate formulas, Formulas for inborn errors of metabolism. Less is known about the long-term effects of feeding babies these special formulas and each formula has its unique properties and indications. The pediatrician must acquaint themselves with all commercially available infant formulas so as to provide the parent with reliable and unbiased information about them.

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Effect of Extrusion Processing and Steam Pelleting Diets on Pellet Durability, Water Absorption and Physical Response of Macrobrachium rosenbergii

  • Misra, Chandra Kanta;Sahu, N.P.;Jain, K.K.
    • Asian-Australasian Journal of Animal Sciences
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    • v.15 no.9
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    • pp.1354-1358
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    • 2002
  • Two hundred and ten post-larvae (PL) of Macrobrachium rosenbergii (14.5-14.9 mg) were equally distributed in two experimental groups and fed with either steam cooked or extruded pellet for a period of 60 days. Physical evaluation and growth promoting effect of both the pellets were assessed. Significantly higher (p<0.05) water stability, absorption and protein efficiency ratio (PER) were recorded in extruded pellet than the steam cooked pellet. Nutrient loss was minimum in the extruded pellet for which lower feed conversion ratio (FCR) (p<0.05) was recorded in this group. However, weight gain, relative growth and specific growth rate (SGR) in both the groups were not significantly different (p>0.05). Although insignificant (p>0.05) but higher amylase activity was recorded in steam pellet fed group. Survival was not affected by feeding either of the diets.

New Technologies for Sow Nutrition and Management - Review -

  • Sohn, K.S.;Maxwell, C.V.
    • Asian-Australasian Journal of Animal Sciences
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    • v.12 no.6
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    • pp.956-965
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    • 1999
  • Genetic selection and sophisticated management technology have produced modern sows which excel in litter size and milk production. Recent research has identified nutritional innovations which may enhance productivity of the high producing sow. Selected research in three areas which have the potential to enhance reproductive performance are summarized in this report. First, preliminary evidence indicates that organic chromium may enhance litter size and conception rate. Secondly, high producing sows, particularly primiparous sows, required higher protein/lysine in late gestation and or lactation to optimize weaning weight and subsequent litter size. Valine and isoleucine, but not leucine, have been shown to enhance milk production. Phased feeding programs with diet cost partitioned toward gilts and away form parity 3 to 8 sows have been suggested as a means of improving reproductive performance in young sows. Lastly, recent research with sufficient sow numbers to document the effect of dietary fiber on reproductive performance has shown that sows fed fiber farrowed and weaned more pigs.