• Feed Journal
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• v.2 no.5
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• pp.100-103
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• 2004

사료내 비타민E의 수준은 유방염 발생과 음의 상관관계가 있다. 또한, 비타민 A와 베타카로틴의 결핍시 질병에 대한 저항성에 영향을 주어 유방염 발생율의 증가를 가져온 것으로 알려져 있다. (중략)

• KOREAN POULTRY JOURNAL
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• v.5 no.2 s.40
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• pp.103-112
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• 1973

• 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.

• Journal of Animal Science and Technology
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• v.48 no.1
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• pp.49-58
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• 2006

This study was conducted to evaluate effects of mud flat bacteria origin protease supplementation on growth performance, amino acid digestibility, blood characteristics, meat quality, fecal VFA (volatile fatty acids) and NH3-N (ammonia nitrogen) concentration in finishing pigs. Eighty pigs (Landrace×Yorkshire×Duroc, 60.08±2.69 kg average initial body weight) were used during experimental period. Dietary treatments included 1) high nutrient density diet, 2) high nutrient density diet+0.1% protease, 3) low nutrient density diet and 4) low nutrient density diet+0.1% protease. For overall period, ADG was improved in treatment of high nutrient density diet added protease compared with treatment of low nutrient density diet without protease (P<0.05). DM and N digestibilities were improved in treatments of high nutrient density diet and low nutrient density diet added protease compared with treatment of low nutrient density diet without protease (P<0.05). Essential amino acid digestibility was improved in treatment of low nutrient density diet added protease compared with other treatments (P<0.05). Nonessential amino acid digestibility was improved in treatment of high nutrient density diet added protease compared with treatments of high and low nutrient density diet (P<0.05). BUN (blood urea nitrogen)　concentration in blood was increased in treatment of high nutrient density diet added protease compared with treatment of low nutrient density diet without protease (P<0.05). L*value of M. longissimus dorsi muscle was increased in treatments of low nutrient density diet compared with treatments of high nutrient density diet (P<0.05). In conclusion, mud flat bacteria origin protease was effective for improving growth performance, amino acid digestibility and influencing BUN concentration and meat color in finishing pigs.

• Proceedings of the Korea Society of Poultry Science Conference
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• 2002.11a
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• pp.113-115
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• 2002

Two experiments were conducted to compare the effects of the natural and the synthetic commercial pigments on the laying performance, pigmentation and fatty acid contents in egg Yolk of laying hens. Feed intake, egg production, egg weight and feed efficiency did not have significant difference(p〈0.05) in experiments I and II. White height and haugh unit did not have significant difference(p〈0.05) in two experiments. In order to approach the yolk pigmentation to 12∼13 of Roche color fan, addition level of natural red pigment was 25∼30 ppm. In the case of synthetic red pigment, the level was 15∼20 ppm. In this experimental condition, the pigmenting effect of the synthetic pigment had better than that of the natural pigment. In the experiment 2, the Pigmenting effect of mixing Pigments were inveatigated between TM2 mixed with natural red pigment, and TM6 mixed with synthesis red pigment. The fatty acid content in yolk was not affected by pigment addition.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.12
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• pp.740-748
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• 2018

This study was conducted to investigate the effects of dietary supplementation of enzyme complex (metalloprotease and xylanase) on growth performance, carcass characteristics and meat storability of broiler chickens. The experiment utilized a 2 (basal and low spec diets) ${\times}$ 3 (0, 0.5 or 1 g/kg of enzyme supplementation) factorial arrangement. A total of 360 male Ross broilers were randomly assigned into the following six groups: BD-T0 (basal diet + enzyme complex 0 g/kg), BD-T1 (basal diet + enzyme complex 0.5 g/kg), BD-T2 (basal diet + enzyme complex 1 g/kg), LD-T0 (low spec diet + enzyme complex 0 g/kg), LD-T1 (low spec diet + enzyme complex 0.5 g/kg), LD-T2 (low spec diet + enzyme complex 1 g/kg). Feed and water were provided ad libitum for 42 days, during which time feed intake and body weight were measured at one-week intervals. After the feeding trial, chickens were slaughtered by exsanguination and samples were collected. Feed intake was lower in the enzyme supplemented groups than the non-supplemented groups (p<0.05), as were body weight and gain (p<0.05). Thus, the feed conversion ratio improved in the enzyme supplemented groups relative to the non-supplemented groups (p<0.05). The carcass rate and production index were also significantly improved by supplementation with enzyme complex (p<0.05). Finally, the thiobarbituric acid reactive substances (TBARS) values were lower in the enzyme supplementation groups after 6 storage days (p<0.05). In conclusion, dietary supplementation with enzyme complex including metalloprotease and xylanase improved growth performance, carcass characteristics, and storability of broiler chicken meat.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.34 no.5
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• pp.570-575
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• 2001

Three feeding experiments were conducted to investigate the effects of herbs (Obosan-C or Obosan-O) as an additive in formulated diets on growth and body composition of juvenile abalone (Haliotis discus hannai), Three replicate groups of abalone initially average weighing 206 mg, 827 mg and 432 mg were fed the each one of experimental diet containing $0\%\;or\;1\%$ Obosan for 10 (experiment 1), 7 (experiment 2) and 19 weeks (experiment 3), respectively. In addition, an imported commercial diet for abalone was also employed to compare growth performance of juvenile abalone. Weight gain of abalone fed the diet containing Obosan-O was significantly (P<0.05) higher than that of abalone fed the control diet in the experiment 3. Moisture, crude protein and ash contents of soft whole body were not influenced by dietary herbs (P>0.05), whereas crude lipid content of abalone fed the diets containing Obosan-C was significantly (P<0.05) lower than that of abalone fed the control diet in the experiment 2. The results indicate that Obosan-O as an additive in formulated diet can improve body growth of juvenile abalone.

• KOREAN POULTRY JOURNAL
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• s.10
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• pp.27-31
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• 1970

우리는 자연 사료에 들어있는 비타민과 미네랄의 함량을 정확하게 모르고 있는 안타까운 형편에 놓여 있다. 또한 우리가 기르고 있는 닭의 정상시 및 스트레스시에 주어야 하는 정확한 수준도 모르고 있으며 첨가제의 품질을 평가할만한 화학적 및 생물학적인 근거를 가지고 있지 않다. 이러한 문제들 때문에 어떤 첨가제를 얼마나 써야 할 것인지 자신있게 말할 사람은 아무도 없을 것이다.

• KOREAN POULTRY JOURNAL
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• v.45 no.6
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• pp.142-145
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• 2013

장 통합성은 가금 성장과 육 생산의 유전적 잠재력 발현을 충분히 하기 위한 사료 영양소들의 최고 이용에 필요한 장 건강 유지로 정의 될 수 있다. 장 건강은 장 통합성과 사료 첨가제들의 선정에 미치는 단백질의 양과 질이나 산패지방의 사용과 같은 영양적 결정과 사료 원료들의 영양범위를 아는 것이 중요하다. 전통적으로 사료 중 항생물질 사용은 장 건강 유지를 위한 최선의 선택이었다. 그러나 가금생산에 전세계적 항생물질 과사용(過使用)으로 항생제 내성 세균이 출현하는 원인이 되었다. 사료 중 항생제 사용으로 발생하는 내성 미생물에 관한 우려는 장내 병원균에 대한 예방제제 및 성장 촉진제 양쪽으로 작용하는 대체 제품을 찾는 연구를 발생시켰다. 씨트렉스는 성장 촉진제로서 그리고 가금 위장관내 내 병원성 세균의 증식억제제를 대표한다.

• Monthly Korean Chicken
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• v.17 no.6
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• pp.62-65
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• 2011

지난 5월 13일 '항생제의 사료내 첨가금지 대응방안'이라는 주제로 한국가금학회 춘계국제심포지움이 열렸다. 필자는 이날 연사로 참여했으며 양계산업의 다양한 분야에 종사하는 분들이 참석하여 심포지움이 진행되는 내내 많은 관심을 보이는 모습을 보며, 현재 우리나라 양계산업에서 항생제 사료내 첨가금지 문제'가 핫이슈임을 새삼 느낄 수 있었다. 실제 금년 7월부터는 일부 항원충제제를 제외한 사료 내 항생제 첨가가 전면 금지되면서 발생하게 될 현장문제에 대해 산업 전반에서 우려하는 목소리가 클 것으로 예상되며, 그에 대한 대책방안 수립이 시급한 상황임을 다시금 절감할 수 있었다. 따라서 본고에서는 무항생제 사육시 발생하는 문제점에 대해 살펴보고 그 관리방법에 대해 고찰하고자 한다.