• KOREAN POULTRY JOURNAL
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• v.42 no.9
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• pp.130-133
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• 2010

경기도 안성에서 일일 15,000여개 유정란을 생산하는 농장이 있다. 해샘찬농장 김종찬 사장은 20여년간 양계사료 약품업체에 근무해왔고, 3년 전부터는 귀농을 선택해 건강한 계란을 생산하고 있다. 김종찬 사장은 과학사료 근무 당시 은나노사업부서 멤버로 활동했고, 현재는 천연항생제인 '은나노'파우더를 첨가한 사육방식으로 유정란 생산에 참여하고 있다. 이번호에는 무항생제 인증을 받아 건강한 유정란을 생산하는 해샘찬농장을 소개하고자 한다.

• KOREAN POULTRY JOURNAL
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• v.41 no.6
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• pp.112-115
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• 2009

이번호는 경기도 이천에서 산란계 무항생제 사육을 바탕으로 깨끗하고 안전한 유정란을 생산, 공급하는 묘룡산자연농원(사장 김동수)을 찾았다. 김동수 사장은 10여년간 유정란 생산에만 힘을 기울여오면서 지난 3월 HACCP인증을 획득하는 등 친환경생산에 앞장서고 있다.

• KOREAN POULTRY JOURNAL
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• v.42 no.3
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• pp.120-123
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• 2010

• KOREAN POULTRY JOURNAL
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• v.34 no.9 s.395
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• pp.119-123
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• 2002

• KOREAN POULTRY JOURNAL
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• v.37 no.12 s.434
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• pp.109-113
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• 2005

• KOREAN POULTRY JOURNAL
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• v.42 no.7
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• pp.114-117
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• 2010

양계업에 늦깎이로 뛰어들어 좋은 계란을 생산하기 위한 열정으로 누구 못지않은 노력을 보이고 있는 농장이 있어 찾아갔다. 강원도 춘천시 사북면에 위치한 양지농장(대표 김구봉)은 3천평 부지에 유창계사 7개동을 지어 2만수 규모의 평사에서 유정란을 생산하고 있다.

• KAPE Magazine
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• s.199
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• pp.14-14
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• 2013

• Proceedings of the Korea Society of Poultry Science Conference
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• 2004.11a
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• pp.35-36
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• 2004

A total of 1.200 eggs obtained from 312-day-old Hy-line Brown layer breeder hens and 319-day-old Hy-line Brown commercial layer hens (600 eggs obtained from each ones) were used to investigate the effects of storage period, storage temperature, and insemination of hens on the change of albumen height, Haugh unit (HU), albumen pH, shell strength, and yolk color. Eggs were stored up to 14 days after lay at $3\;^{\circ}C\;or\;10\;^{\circ}C$ and sampled one day after stored and then 24 hours interval. Longer periods of storage resulted in lower albumen height and HU at both storage temperatures, but in higher albumen pH. The eggs stored at $3\;^{\circ}C$ were generally higher in HU and lower in albumen pH than the ones stored at $10\;^{\circ}C$. There was no statistically difference although the eggs obtained from the non-inseminated-hens were slightly higher in albumen height and HU than the eggs obtained from the inseminated-hens. Whereas, the eggs obtained from the non-inseminated-hens in the albumen pH of eggs stored at $3\;^{\circ}C$ was significantly (P<0.05) higher than the ones obtained from the inseminated-hens, but the albumen pH of eggs stored at $10\;^{\circ}C$ did not differ each other. The mean shell strength of the eggs obtained from the inseminated-hens was significantly (P<0.05) stronger than that of the eggs obtained from the non-inseminated-hens at both storage temperatures. Albumen height and albumen pH were negatively correlated(P<0.01~0.001) in both inseminated and non-inseminated-hen's egg groups. The degree of yolk colors were not significantly changed overall of the experimental periods in both storage temperatures. The study suggests that the change of egg freshness such as albumen height and HU are relatively more associated with storage period and storage temperature than insemination or non-insemination of hens.

• Analytical Science and Technology
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• v.26 no.6
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• pp.401-406
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• 2013

Oxygen($O_2$) consumption and carbon dioxide($CO_2$) excretion of a fertile chicken egg during incubation were measured by a gas mass spectrometer. A closed sample chamber was developed to collect gas samples during the 20 days of artificial incubation of both a fertile and an infertile egg. After leaving an egg in the sample chamber for an hour, using a gas-tight syringe, samples of 2 mL of gas were collected from the closed sample chamber and analyzed using a gas mass spectrometer in 2~4 day intervals. The $O_2$ consumption and $CO_2$ excretion of chicken embryos increased rapidly after 10 days from the starting point of incubation. After 20 days, 23 mL of $O_2$ was consumed and 16 mL of $CO_2$ was excreted per hour. Throughout the whole period of incubation, concentration of $O_2$ decreased 4.3 mol% and $CO_2$ increased only 3.1 mole%, i.e., the mole of consumed $O_2$ and the mole of excreted $CO_2$ were not the same. On the other hand, during the same period, concentration of $N_2$ increased about 1.3 mol% and the increased mole fraction of $N_2$ was comparable with the difference (1.2 mol%) between the mole fraction of consumed $O_2$ and excreted $CO_2$. Therefore, we can attribute the increase of $N_2$ mole% to the difference of mole fraction between consumed $O_2$ and excreted $CO_2$. In this study, through the analysis of gas, we could explain the respiration of a fertile chicken egg during incubation.

• KOREAN POULTRY JOURNAL
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• v.37 no.3 s.425
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• pp.88-90
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• 2005