• Journal of Practical Agriculture & Fisheries Research
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• v.20 no.1
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• pp.107-123
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• 2018

The global impact of climate change on agriculture is now increasing. The purpose of this study was to investigate the effect of climate change on livestock productivity. The variables that have the greatest influence on climate change factors were examined through previous studies and expert surveys. We also used the actual productivity data of livestock farmers to investigate the relationship with climate change. In order to evaluate the climate for changes in livestock productivity, national representative data (such as bullocks, dairy, pigs, laying hens, and broilers) were surveyed in Korea. Also, to select and classify evaluation indexes, we selected climate change factor variables as prior studies and studied the weighting factor of climate variable factors. In this study, the researchers of industry, academia, and farmers in the livestock sector conducted questionnaires on the indicators of vulnerability to climate change using experts, and then weighed the selected indicators using the hierarchical analysis process (AHP). In order to verify the validity of the evaluation index, was examined using domestic climate data (temperature, precipitation, humidity, etc.). Correlation and regression analysis were performed. The empirical relationship between climate change and livestock productivity was examined through this study. As a result, we used data with high reliability of statistical analysis and found that there are significant variables.

• KOREAN POULTRY JOURNAL
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• v.43 no.5
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• pp.118-120
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• 2011

• Korean Journal of Poultry Science
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• v.18 no.3
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• pp.167-181
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• 1991

In order to study the effects of dietary yeast (Saccharomyces cerevisiae) products on the performance of broiler chickens, tow feeding trial using Arbor Acres strain were conducted. In experiment 1, 200 hatched male broiler chickens were divided into groups of 10 birds each and four groups were given each of the five dietary treatments : control, 0.25% yeast culture supplemented (YC-0.25%), 2.5% yeast culture supplemented(YC-2.5%), 0.05% live yeast supplemented(LY-0.05%) and 0.1% live yeast supplemented(LY-0.1%) . In experiment 2, 240 hatched broiler chickens(120 birds in each sex) were assigned to 2$\times$3(sex$\times$feed) factorial design Dietary treatments were control, 0.1% live yeast supplementation in finisher diet(LY-Finisher) , and 0.1% live yeast supplementation in whole period (LY-Whole). Results of experiment 1 showed that weight gain, feed intake and mortality were not significantly different among treatments. However, weight .gain of YC-0.25% and LY-0.1% tended to be greater than other treatments after 3wks of age Feed efficiency of LY-0.05% was poorer than those of control, YC-0.25% and LY-0.1% . Although nutrients availabilities were not significantly different among treatments, availiabilities of Ca and P were greater in yeast products supplemented groups than in control group. The number of Lactobacillus spp., Streptococcus spp . and yeast in small intestine tended to be greater in supplemented groups while that of Coliforms bacteria tended to be greafter in control group. In experiment 2, there were significant effects of factors (feed and sex) and interaction on growth rate. LY-Whole groups showed best weight gain in male while LY-Finisher groups did best in female broiler chickens. Feed intake and mortality were significantly higher in male broiler chickens. Feed$\times$sex interaction had a significant effect on feed efficiency. LY-Whole groups showed best feed efficiency in male while LY-Finisher did best in female broiler chickens. Availabilities of dry matter, Ca and P were higher in male than in female broiler chickens. Availabilities of Ca and P were higher in live yeast supplemented groups than in control groups. Live yeast supplemented groups tended to have greater number of Lactobacillus spp . and yeast in the small intestine and Stre))tococcu spp. in the small intestine and cecum, and lesser number of Coliforms bacteria in the small intestine The pH of small intestinal contents tended to be higher in live yeast supplemented groups.

• KOREAN POULTRY JOURNAL
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• v.48 no.8
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• pp.120-123
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• 2016

국내 육계사중 처음으로 고상식계사(발명 특허 제10-0786770호)를 접목한 (주)건지농업회사법인(대표 곽춘욱, 이하 건지농장)은 끊임없이 선진 사양기술을 적용해 생산비는 낮추고 생산성은 올리고 있다. 고상식계사는 계분과 닭의 생활공간이 분리되어 더욱 위생적이고 쾌적한 사육환경 조성이 가능하다. 또한, 최근에는 열교환기 설치로 난방비를 크게 절약하고 있는 건지농장이다. 이번호에는 수년전 대형닭 사육기술을 연구개발해 국내 대형닭 시장의 초석을 다진 건지농장 곽춘욱 대표를 만나 농장 운영상황에 대해 들어 보았다.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2018.10a
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• pp.229-229
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• 2018

• Monthly Korean Chicken
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• v.18 no.2
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• pp.92-95
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• 2012

2011년 세계 닭고기 생산량은 101백만톤을 넘어서며 세계 육류 공급의 34%를 차지했다. 그러나 높은 사료비용과 질병발생으로 인한 수익성 감소는 2010년의 약 5%의 생산 수익과 비교하여 약 3% 세계 생산 수익을 낳았다.

• Proceedings of the Korea Society of Poultry Science Conference
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• 2002.11a
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• pp.138-139
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• 2002

• Proceedings of the Korea Society of Poultry Science Conference
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• 2000.11a
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• pp.61-62
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• 2000

• KOREAN POULTRY JOURNAL
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• v.42 no.5
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• pp.130-133
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• 2010

전문적인 수의지식을 바탕으로 철저하게 농장을 관리하고 사육밀도를 준수하며 높은 생산성을 유지하는 농장이 있다. 경남 합천군 쌍책면 상포리에 위치한 대환농장(대표 박규환)으로 HACCP인증에 이어 친환경(무항생제)인증까지 획득하면서 육계사육의 모범을 보여주고 있다.

• Monthly Korean Chicken
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• v.16 no.3
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• pp.96-98
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• 2010

지난 1월호에는 농장에서의 급수관리의 중요성과 관리 방법에 대해 소개했다. 이번 호에서는 항생제 대체물질로 사용되고 있는 유기산제에 대해 간략히 소개하고 유기산을 이용한 급수관리에 대해 알아보고자 한다.