• Title/Summary/Keyword: 사료효율

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Effect of Experimental Diets Containing Krills on the Growth and Body Composition of Juvenile Black Rockfish Sebastes schlegeli (실험사료 중 크릴 첨가가 조피볼락 Sebastes schlegeli 치어의 성장 및 체성분에 미치는 영향)

  • Lee, HaeYoung;Nam, Myung-Mo
    • Korean Journal of Ichthyology
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    • v.32 no.2
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    • pp.70-77
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    • 2020
  • A feeding experiment was conducted to investigate the effects of replacement of dietary fish meal by frozen whole krill (FWK) and/or krill meal (KM) on growth performance and body composition of juvenile black rockfish, Sebastes schlegeli. The basal experimental diet (ED) contained 58.4% fish meal (FM) as a control, the other five EDs were formulated with the protein replacement ratio of fish meal by as 0, 10, 20, 30, and 40%, respectively (FWKM0, FWK10, FWK20, FWK20KM10, FWK20KM20 and FWK20KM20HP). Each diet was fed to juvenile rockfish initially weighing 3.09±0.02 g/fish in a flow-through system. The control ED containing 58.4% FM and 10% FWK diet showed significantly higher weight gain and feed efficiency than all the other EDs containing 20, 30, and 40% FWK and/or KM. But the survivals, whole-body moistures, crude proteins and lipids of black rockfish fed all EDs were similar in all EDs. The only whole-body ashes of juvenile black rockfish were significantly differentiated by feeding the various EDs containing different levels of FWK and/or KM with a protein and lipid levels adjustment. These results suggest that dietary frozen whole Antarctic krill and/or krill meal inclusions could not improve the growth but change the whole-body ashes in juvenile black rockfish. Therefore, this study further indicates that dietary more than 20% of FWK and/or KM supplementation could not be a potential source of animal protein to replace fishmeal in juvenile black rockfish.

항생제 첨가효과에 따른 배합사료의 품질

  • 원송대
    • KOREAN POULTRY JOURNAL
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    • s.108
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    • pp.55-59
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    • 1978
  • 항생물질의 닭에 대한 사료첨가는 닭의 질병 저항율 증가, 사료효율 증가, 폐사율 감소, 성장촉진 등 지대한 효과를 가져온다. 그러나 축산물에 항생물질이 잔유되어 해가 미친다는 이유로 많은 사용제한을 받고 있으며 사용한다해도 크게 유의해야 한다.

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항생물질과 효소와의 상호작용

  • Pisel Conny
    • KOREAN POULTRY JOURNAL
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    • v.28 no.9 s.323
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    • pp.144-151
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    • 1996
  • 밀과 같은 곡류를 기본으로 하는 사료내에 질란아제(Xylanase)효소의 첨가는 사료효율을 향상시킨다. 어떤 종류의 성장촉진제와 질란아제 효소와의 결합된 첨가는 실행에 있어서 누가적(累加的)인 효과를 보여주는 실험이 증명됐다.

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Effect of Feeding on Sunflower Seed Oil Cake on Growth and Value of Erythrocyte in Albino Rats (해바라기 종자유박(種子油粕)의 급여(給與)가 흰쥐의 발육(發育)과 적혈구상(赤血球像)에 미치는 영향(影響))

  • Yoon, Il-Sup;Kim, Hyun-Oh;Lee, Kap-Sang
    • Korean Journal of Food Science and Technology
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    • v.7 no.3
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    • pp.120-127
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    • 1975
  • Despite the extensive study of protein effect to man and domestic animals, protein effect of sunflower seed oil cake to the growth and value of erythrocyte in rats is still remained to be investigated. This study is to investigate the effect of protein of sunflower seed oil cake to the rat growth and value of erythrocyte as well as the liver weight, heart, kidneys and spleen of rats. Sixty to seventy-days-old, male Sprague-Dawley rats weighing 50-60g, were used in this experiment and 36 rats allotted to 4 groups: standard, 30% cake, 20% cake and low protein. The standard group was fed for 7 weeks on the ration supplemented with 17% casein, 30% and 20% cake groups with sunflower seed oil cake by 30% and 20%, respectively, and low protein group without any supplementation. To observe value of erythrocyte, blood was taken from heart. Value of erythrocyte, hemoglobin and hematocrit value were determined by usual method and oxygen consumption by the method of Watts and Gourley. The result of this experiment suggests that it is recommendable to supplement deficient amino acids in animal.

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Evaluation on Ruminant Feed Value of Cage Broiler Excreta Processed by a Deepstacking Method (퇴적발효한 케이지 육계생분의 반추동물 사료적 가치 평가)

  • 곽완섭;박종문;김연호;강준석;김영일;김원경
    • Journal of Animal Environmental Science
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    • v.9 no.2
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    • pp.113-122
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    • 2003
  • This on­farm study was conducted to evaluate the effect of feeding deepstacked broiler excreta­saw dust­rice hulls(DBSR) pellets on feed intake, production and economy of growing Hanwoo steers and Holstein bulls. Formulated mix and rice straw were replaced at 16% and 48% levels for growing Hanwoo steers(6 wk of feeding period) and at 4% and 18% levels for Holstein bulls(12 wk) with DBSR pellets. Control and treated diets were formulated to be isoenergetic and DBSR pellets were fed ad libitum. Palatability of DBSR pellets turned out to be favorable. Compared with the control group, feeding DBSR pellets did not affect body weight gain, average daily gain and feed efficiency(P>0.05). Feed cost per gain was reduced by 18.5% for Hanwoo steers and 3.5% for Holstein bulls. Feeding DBSR pellets to Holstein bulls did not affect carcass weight and grades of meat yield and quality. These results indicate that deepstacked cage broiler excreta mixture may be effectively used as a feed ingredient for growing ruminants.

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카나다산 보리에 의한 옥수수 대치수준이 육성계의 증체율 사료효율 영양소 이용율 및 경제성에 미치는 영향

  • 대한양계협회
    • KOREAN POULTRY JOURNAL
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    • v.5 no.12 s.50
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    • pp.113-118
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    • 1973
  • 1. 카나다산 보리의 아미노산조성은 국산보리의 그것과 큰 차이가 없으나 단백질의 함량은 12$\%$로서 국산 보리의 10$\%$보다 약간 높았다. 증체량은 초생추시기에 보리 40$\%$수준이 낮았으나 중추 및 대추시기에는 각 처리구들 사이에 통계적 유의성이 없었으며 2. 사료섭취량과 사료효율은 전시험기간에 걸쳐서 역시 각 처리구 사이에 통계적인 유의성이 없었다. 3. 경제성 분석 결과, 0$\~$6주령에서 보리 40$\%$ 수준이 다소 비싸게 사료비가 소요되었으며 전 육성기간에 걸쳐 5개의 처리에 따른 유의성은 검출되지 않았다. 4. 중추사료의 대사시험 결과 고형물 질소축적률, 조섬유, NFE의 대사율은 각 처리구별로 유사하였으나, 조지방의 소화율은 보리수준이 높아질 수록 소화율도 향상됨을 보여 주었다(P<0.01).

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