• KOREAN POULTRY JOURNAL
• /
• v.7 no.7 s.69
• /
• pp.36-40
• /
• 1975

금년 여름은 예년보다 혹서가 예상된다고 한다. 더위가 심하여질수록 많은 에너지의 낭비와 식욕부진으로 우리가 기대한 효과를 거둘 수 없으므로 환경관리에 더욱 세심한 주의를 필요로하느데 닭의 에너지 절약온도 27$^{\circ}C$내외로서 이때가 에너지 소모를 가장 적게한다. 17$^{\circ}C$이하로 내려가면 체온유지를 위하여 에너지 소비량이 많아지며 27$^{\circ}C$이상으로 상승하면 체열발산을 위하여 에너지 소비량이 많아저 사료효율이 떨어지게 된다. Deaton씨는 21.1$^{\circ}C$에서 증체율과 사료효율이 우수하며, Morris씨는 최소한의 광도로서 활동을 제한하여 사료효율을 높였다고 했다. 대체적으로 여름철에는 사료섭취량이 떨어지므로 감소하는 사료섭취 비율만큼 사료중의 영양소$\%$를 높여주어 사료효율과 증체량을 높여 이익극대화를 위하여 총력을 기울여야 할 것이다.

• KOREAN POULTRY JOURNAL
• /
• v.7 no.11 s.73
• /
• pp.109-113
• /
• 1975

양축가는 경영비의 과중부담을 줄이기 위해 싼 사료만 구하려 노력할 것이 아니라, 사료효율면을 생각하여, 싼 사료가 왜 싼가를 분석, 검토한 후에 사료를 선택하여야 할 것이다.

• Journal of Life Science
• /
• v.20 no.2
• /
• pp.231-236
• /
• 2010

Antibiotics in veterinary medicine have been used to treat disease, promote growth rate and improve feed efficiency. However, alternative sources are needed because of of bacterial resistance to antibiotics and residues of antibiotics. The present study was carried out to evaluate the effect of CS682, a fermentation product of Korean soil bacteria, on safety, growth rate and feed efficiency, and to evaluate its value as an alternative for antibiotics used as a feed additive. Two dosages of CS682 (0.1% and 1%) were fed to chickens for 28 days. The results showed that, when compared to chickens in the control group, growth and feed efficiency was improved. Also, mortality, hematology, general clinical signs and necropsy were examined. Chickens in the treatment groups showed no adverse effects. A total of 72 weaning pigs were used to confirm the effects of CS682 at one dose level (0.1%) regarding feed efficiency. Supplementation with 0.1% CS682 also resulted in improved weight gain and feed efficiency ratio. Based on these results, CS682 may be effective in improving feed efficiency safely as a feed additive.

• KOREAN POULTRY JOURNAL
• /
• s.18
• /
• pp.56-61
• /
• 1971

11종의 시판 부로일러용 배합사료의 품질을 비교하기 위하여 서울대학교 농과대학에서 사료의 일반성분 및 Ca, P의 분석은 물론 572수의 스타브로계 육욕종 병아리로 8주간 사양시험을 실시하였던 바 그 결과를 요약하면 다음과 같다. 1. 부로일러 사료의 가격은 제조하는 공장에 따라 전기의 경우 공장도 가격이 kg당 41.00에서 45.00원까지, 후기의 경우 공장도 가격이 kg당 39.00원으로부터 43.20원까지, 대리점 가격은 40.20원으로부터 47.20원까지로서 상당한 차이가 있었다. 2. 부로일러 사료의 일반 성분 및 Ca, P 함량에 있어서 제조하는 공장에 따라 상당한 차이가 있었는데 전기사료의 단백질함량은 20.38$\~$23.98$\%$, 후기의 것은 17.14$\~$21.57$\%$였으며, Ca, P함량은 앞으로 개선의 여지가 많았다. 3. 부로일러 사료의 제조공장에 따라 병아리의 성장율, 사료섭취량, 사료효율 등이 현저하게 달라졌다. 대체로 최종체중은 1.74$\~$1.91kg(평균 1.82kg)이었으며 사료효율은 2.4$\~$2.6정도였다. 4. 부로일러 사료의 품질이 다르고 또한 kg당 가격이 달랐기 때문에 조수익성에 있어서도 사료에 따라 크게 달랐다. 증체나 사료효율에 미치는 영향이 비슷한 경우 사료의 가격이 싼 것을 선택하는 것이 경제적으로 유리하다는 것이 밝혀졌다. 5. 앞으로 이와 같은 유형의 시험이 주기적으로 이루어져야 사료의 품질개선을 통한 양계업자의 권익보호가 될 것으로 생각되므로 정부는 현행 사료검사제도에 생물학적 검사를 겸행하기를 건의하는 바이다.

• Feed Journal
• /
• v.5 no.11 s.51
• /
• pp.104-109
• /
• 2007

다볼바이오 류은호 대표는 수년간 연구된 사료 가공기술을 바탕으로 국내사료공장은 물론 해외시장을 대상으로 '가공사료 생산의 효율적 운영' 세미나를 개최 하고 PELLET 컨설팅을 통해 제품의 효율적 운용 방안 및 가공 기술 향상 방향을 제시해왔다. 앞으로 본지를 통해 <펠렛 가공사료에 대한 새로운 고찰> 이라는 주제로 3회(격월간)에 걸쳐 연재할 예정이다.

• Journal of Aquaculture
• /
• v.19 no.4
• /
• pp.299-304
• /
• 2006

This study was conducted to investigate the effects of protein and lipid levels of extruded pellet on growth and body composition of juvenile flounder. Six extruded dry pellets were formulated to contain two protein levels (50 and 55%) and three lipid levels (8, 12 and 15%). Triplicate groups of fish (initial mean weight 21 g) were hand-fed to apparent satiation two times a day for 9 weeks. Survival, weight gain and daily feed intake were not significantly affected by dietary protein and lipid levels. Feed efficiency and protein efficiency ratio were significantly (P<0.001) affected by dietary lipid level, and tended to increase as dietary lipid level increased. Feed efficiency ratio of fish fed the 55% protein diet with 15% lipid was not significantly different from that of fish fed the 50% protein diet with 15% lipid, but significantly (P<0.05) higher than that of fish fed the other diets. Protein efficiency ratio of fish fed the 55% protein diet with 15% lipid was significantly (P<0.05) higher than that of fish fed the 50% protein diet with 8% lipid and 55% protein diets with $8{\sim}12%$ lipids. The contents of moisture, crude protein and lipid in the liver was significantly (P<0.01) affected by dietary lipid level. The results of this study indicate that an increase in lipid level at 50-55% protein in extruded pellet can improve feed efficiency for juvenile flounder.

• The Korea Swine Journal
• /
• v.26 no.9 s.301
• /
• pp.134-137
• /
• 2004

• 사료
• /
• s.40
• /
• pp.11-14
• /
• 2009

• Journal of Aquaculture
• /
• v.16 no.2
• /
• pp.88-93
• /
• 2003

Diets containing 3000 kcal/kg at the crude protein (CP) level of 40% (Diet 1) and 4000 kcal/kg at the CP level of 50% (Diet 2) were fed to the juvenile rockfish, Sebastes schlegeli (35.6 g) at 3-4% body weight for a period of 28 days. Diet 2 promoted significantly higher growth and feed efficiency than Diet 1. Oxygen uptake increased with increasing body weight. The oxygen uptake-body weight relationship of diets 1 and 2 were best expressed by y=0.3218 $e^{0.0592x}$ (R=0.8494) and y=0.3612 $e^{0.0532x}$ ($R^2$=0.8805), respectively. Assimilation efficiency (AE), gross growth efficiency ( $K_1$) and net growth efficiency ( $K_2$) of the fish fed on Diet 2 were 73.8, 16.0 and 22.6%, respec- tively. Fish fed on Diet 2 showed significantly higher AE, $K_1$ and $K_2$ than those fed on Diet 1. Hence Diet 2 con- taining 4000 kcal/ kg with crude protein of 50% is recommended for the Korean rockfish.kfish.

• Korean Journal of Poultry Science
• /
• v.17 no.1
• /
• pp.27-31
• /
• 1990

An experiment was conducted to determine the influence of Sodium Bicarbonate($NaHCO_3$)on performance in the broilers. $NaHCO_3$, supplementation level(0, 1.5, 2.0, 2.5% ) was substituted for yellow corn in the broiler ration. 120 broilers(Cob strain) were fed for 4 weeks. The results of the experiment obtained were summerized as follows： Body weight gain showed better performance in $NaHCO_3$ 2.5% level group than other groups. but was no significant differences among treated groups, $NaHCO_3$ addition levels did not significant affect in feed intake and feed efficiency, but control group showed slightly higher feed intake amounts than other groups, lowest in feed efficiency, the other side $NaHCO_3$ 1.5% addition group was the lowest in feed intake and better feed efficiency than other treated groups.