• Korean journal of applied entomology
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• v.29 no.3
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• pp.180-183
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• 1990

Simple mass-rearing methods for Spodoptera exigua Hubner with an artificial diet were done in th laboratory. Hatchability of egg and its survival rates upto 3rd instar lava were 97.9 and 83.3 ercent, respectively. The pupation rates in individual rearing, mass-rearing, mass-rearing with sawdust were 48.5%, 37.5%, and 82.5%, respectively. The emergence rates in those methods were 85.2%, 86.7%, 90.9%, respectively.

• Korean Journal of Poultry Science
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• v.36 no.1
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• pp.1-7
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• 2009

This study was performed to evaluate the effect of the level of stocking density of housing with or without window on chicken meat quality. The incidence of $1^+$ grade of whole chicken housed with window significantly influenced by stocking density. The incidence of $1^+$ grade chicken at high stocking density ($0.050\;m^2$/head), standard stocking density ($0.066\;m^2$/head), and low stocking density ($0.083\;m^2$/head) was 26, 52, and 66%, respectively. Breast muscle of chicken housed with window and with low stocking density showed higher incidence of $1^+$ grade than high stocking density. Also minor and severe PSE (pale, soft, extractive) incidence of chicken meat were showed 4% each, while the $1^+$ grade chicken was not appeared at low density. In chicken thigh, the incidence rate was not affected by stocking density. In chicken housed without window, the incidence of $1^+$ grade chicken in high, standard, and low stocking density was 18, 8, and 46%, respectively. Also, the incidence of $1^+$ grade chicken breast was 2.6 times higher than the chicken in low stocking density. However, incidence of $1^+$ grade thigh was not affected by the stocking density. These results suggest that high stocking density significantly reduced the incidence of $1^+$ grade chicken meat regardless of housing with or without window.

• KOREAN POULTRY JOURNAL
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• v.44 no.7
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• pp.116-117
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• 2012

본고는 자조금사업의 일환으로 김정주 애그리비즈니스경영연구소장이 연구한'계약방식에 따른 사육비 적정성 평가 연구'내용이 최종 발표됨에 따라 농가에 도움을 주고자 그 내용을 발췌 요약 게재한 것이다.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1997.11a
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• pp.44-50
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• 1997

돼지의 사육농가 호수 및 총사육 두수는 1980년 503천호, 1,784천두에서 1995년 46천호, 6,461천두로 농가호수의 급격한 감소에 비해 전체사육두수는 3.62배나 증가하였다. 지난날 양돈업은 농가에서 식사후 남은 잔반을 주면서 사육하는 등 다수의 농가에서 소규모의 양돈업을 하는 형태였으나 지금의 상황은 대부분의 소규모 사육농가는 자취를 감추고 있으며 한 농가에서 다두의 양돈을 사육하고 있는 집약적인 밀식사육을 하고 있는 실정이다. (중략)

• Journal of Biosystems Engineering
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• v.23 no.6
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• pp.641-648
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• 1998

우리나라의 젖소 사육은 `95년 말 23.5천호의 낙농농가에서 553천두를 사육하던 것이, IMF의 영향을 받기 시작한 `97년 말에는 17.4천호의 낙농농가에서 544천두를 사육하여, 사육농가 호수는 26%가 감소한 반면 전체적인 사육 마리 수는 2.7%의 감소에 불과하였다. 이것으로 소규모 영세 사육농가가 줄어들고 점차 사육규모가 확대되고 있음을 알 수 있다.(중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.05a
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• pp.227-228
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• 2000

광물미립자(50$\mu$ 이하)는 무한에 가까운 표면적을 가지고 있다. 이들 미립자가 사육수에 교질(膠質)상태(colloidal)로 현탁(懸濁)되어 그 표면에서 사육수에 존재하는 노폐물질들을 흡착, 분해하고, 포말분리장치를 통하여 사육시스템 밖으로 배출된다면 사육수 정화에 필요한 제 과정과 이에 따르는 시설을 단순화시킨 새로운 순환여과시스템이 가능하다는 가설 하에 넙치를 대상으로 하여 본 사육실험이 시도되었다. (중략)

• Korean Journal of Poultry Science
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• v.48 no.3
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• pp.123-131
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• 2021

In this study, we investigated the effect of separate-sex and straight-run rearing system on the productivity of Korean native chickens. A total of 1,140 GSP-Hanhyup^® Korean native chickens were divided into male, female, and straight-run rearing groups, and the survival rate, body weight, feed intake, and feed conversion ratio were investigated from birth to 12 weeks of age. The average survival rate was 97.9%, and there were no significant differences among the groups. Body weight was significantly different among the groups at all weeks of age (P<0.01). After 4 weeks of age, the male group had the highest weight, followed by the straight-run group, and finally the female group. At 10 weeks, the most uniform body weight was shown in the female group (78%), while the lowest was in straight-run group (44%). Comparing the separate-sex and straight-run groups, male chickens were found to have higher body weights in the separate rearing group than in the straight-run group; however, there was little difference in those of female chickens. Feed intake was the highest in the male group, followed by the straight-run group, and lastly, the female group, while the feed conversion ratio had an opposite trend. Although there is little difference in the production performance of chickens between separate-sex rearing and straight-run rearing system, we concluded that the separate-sex rearing system is much more advantageous than the straight-run rearing system in terms of productivity due to group uniformity.

• Journal of agriculture & life science
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• v.46 no.6
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• pp.197-205
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• 2012

This paper analyzes the beef cycle and forecasts the number of Hanwoo. This study uses Sine function for this purpose. Data shows that beef cycle varies from five to twelve years and the cycle becomes longer as time passes. The adjusted $R^2$ of the estimated model is 0.95. The forecasted value based on this model for the number of Hanwoo is 1.6-1.8 million heads in lower bound and 3.2-3.7 million heads in upper bound, where the peak points are slightly different according to cycles. These predicted values imply the instability of number of Hanwoo and corresponding farm income, so we have to prepare adequate policies to cope with it.

• Feed Journal
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• v.2 no.4
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• pp.72-74
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• 2004

농림부는 지난달 축산법 제 20조의 5 및 동법 시행규칙 제25조의 2제3호의 규정에 의하여 가축사육시설 단위면적당 적정 가축사육기준과 축산법 제2조1호 및 동법 시행 규칙 제2조제4호의 규정에 의하여 사육하는 동물중 가축의 범위에 해당하는 기타 동물을 고시했다. 다음은 고시된 내용을 정리한 것이다.

• Monthly Duck's Village
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• s.195
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• pp.24-35
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• 2019

오리산업은 2000년대 이후 빠르게 성장하면서 농가의 주요 수익원으로서 역할을 해왔지만, 시설 방역수준이 미흡하여 HPAI가 지속적으로 발생하고 있다. AI 예방을 위해서는 사육시설 개선 및 방역 강화와 같은 보다 근본적인 방안이 필요함에 따라 본 연구의 목적은 오리사육시설에 대한 전국적인 실태조사를 통해 사육시설과 방역시실 현황을 점검하고 HPAI 방역 뿐만 아니라 생산성 향상이 가능한 사육시설 개선을 위한 정책 방안을 마련하고자하는 것이다.