• KOREAN POULTRY JOURNAL
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• v.26 no.11 s.301
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• pp.138-141
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• 1994

육용종계 수평아리의 육성은 암평아리와 달리 초기에 충분한 영양을 공급하여 골격을 충분히 키워준 후 육성 후기에 가서 엄격한 제한급이를 하는 것이 관리의 초점이다. 육용종계 수평아리의 육성에 있어서 핵심 목표는 앞으로의 생산 활동 기간이 교미 활동에 알맞은 체형을 만들어 주는 것이다.

• Monthly Duck's Village
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• v.63 no.9
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• pp.56-59
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• 2008

육용오리는 가급적 적은 사료를 이용하여 성장속도를 최대한 빠르게 하는 동시에 체지방이 필요 이상 축적되지 않은 우수한 육질이 되도록 사육하는 것이 중요하다. 오리는 어릴 때 발육속도가 빠르므로 사료 중 단백질 수준이 오리의 발육, 특히 초기 성장기의 중체량에 크게 영향을 미친다. 첫 2주간에 최대한 증체를 위해서는 22% 단백질사료를 급여해야 하며, 오리가 성장함에 따라 단백질 요구량은 점차 감소하게 된다. 그러나 오리의 육성기 전기간을 16% 수준의 단백질사료를 급여하더라도 사양환경이 좋으면 출하체중에는 영향이 없게 된다. 즉, 육성초기에는 단백질 급여량의 부족으로 성장이 떨어지게 될지라도 후기에 가서는 쉽게 이를 회복하는 능력이 있다.

• Feed Journal
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• v.2 no.6
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• pp.98-101
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• 2004

이 시기에는 돼지의 골격이 발달하는 시기이므로 고단백, 고에너지 사료인 젖먹이 및 육성돈 사료를 무제한 급여할 것이며, 육성초기인 포유기에는 고형사료에 대한 소화흡수 능력이 부족하므로 이에 알맞는 효성활성제가 포함된 고농축 사료를 급여해야한다. (중략)

• Korean Journal of Poultry Science
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• v.50 no.1
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• pp.15-22
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• 2023

This study was to investigate the relationship between chick weight in the growing period and the laying performance of Korean native chicken (KNC) breeders. We measured the body weights of 1,384 KNC breeders at 1-140 days of age at two-week intervals. The age at first egg laying, hen-day and hen-housed egg production, and the egg weights were investigated. Correlation coefficients between the body weight and egg production traits were analyzed. The results showed that the correlation coefficients between body weight and age at first egg laying were significantly positive before 4 weeks, but negative after 8 weeks of age. The correlation coefficients between body weight and egg production rate were estimated to be negative before 8 weeks and positive after 12 weeks of age. Coefficients of hen-day and hen-housed egg production were similar. There was little correlation between body weight and egg weight at 32 weeks of age, whereas a low positive correlation was with egg weight at 50 weeks. In conclusion, there was little correlation between body weight and laying performance before 8 weeks of age, whereas a significant positive correlation was with body weight after 12 weeks. The results suggest that as the chick's weight increases in the late growing stage, sexual maturity is faster, the egg production rate is higher, and the egg weight increases. Therefore, the weight management of KNC female breeders is very important in the late growing stage, and the body weight of chicks must be maintained above the standard weight.

• Journal of Practical Agriculture & Fisheries Research
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• v.24 no.2
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• pp.12-22
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• 2022

The purpose of this study is to design a farming model for Hanwoo start-up farmers. I prepared a Hanwoo production plan model according to the growth cycle of Hanwoo using EXCEL. The Hanwoo production plan model was simulated in two model: Model 1 (a model that only purchases Hanwoo calf) and Model 2 (a model that purchases both Hanwoo cow and Hanwoo calf). Next, I reviewed the profits and costs of two Hanwoo simulation models. As a result of the analysis, Model 2 has the following characteristics compared to Model 1. First, Model 2 requires a lot of initial investment. Second, Model 2 is advantageous in terms of farm cash balance because imports occur every year. Third, Model 2 can efficiently use facilities and machines.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.28 no.4
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• pp.435-442
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• 1995

The abalone shell (Haliotis) is one of the most important resources for the coastal fisheries and it is popular as an aquacultural species. Proper cultivating grounds for mid-term nursery of abalone spats are required before releasing them. It is difficult for us to find good enough aquacultural grounds to rear abalone spats to 20"30mm of shell length. Therefore, we need to study a practical and effective new type of aquacultural device for the nursing of abalone spats by using open sea areas. We can find this kind of studies from 'Marine aya No. 1' of Japan, Though they focused on the easy operation, safe working and low operating cost, it involves so much initial cost that it is difficult for us to justify such expenditure. However, with a modified small buoy system, this submersible facility needs only a horizontal frame to fulfill its essential function and the vortical part can be removed. The working boat equipped with a pump can operate this facility to keep it submerged or floated. This paper deals with the possibility of this submersible fishery facility for the mid term nursing of abalone spats in the open sea. A small version of this system to ensure low initial cost is suggested and wave and current forces were calculated for the estimation of the weight of the mooring anchor.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1999.11a
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• pp.183-186
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• 1999

오이재배는 초기에 노지직파재배와 조숙재배가 주된 작형이었으나, 플라스틱하우스재배와 함께 새로운 품종육성 및 보급으로 현재는 시설재배를 중심으로 한 재배작형이 다양하게 분화 발전되고 있다. 우리나라에서는 종묘회사가 다다기성, 내서성, 내병성 등을 개선하고 각 재배방식의 환경에 알맞은 우수한 1대 잡종 품종들을 많이 육성하여 보급하고 있다. 1996년 8월 현재 등록된 오이품종은 171품종이다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 1995.06a
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• pp.187-188
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• 1995

• 한국벤처창업학회:학술대회논문집
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• 2021.04a
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• pp.181-184
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• 2021

본 연구는 국내에 벤처 창업 자금이 많이 제공되나 실제로 스타트업이 투자 유치에 어려움을 겪고 있는 초기투자의 딜레마 문제를 연구하였다. 기술기반 스타트업은 새로운 제품과 서비스를 제공하는 신규 시장을 형성하면서 일자리와 고부가가치를 창출한다는 점에서 국민경제에서 역할이 매우 중요하다. 하지만 주요 선진국에 비해 국내에서는 초기 스타트업이 기술이전 후 창업으로 연계되지 못하는 경우가 많은 실정이다. 특히 최근에 국내 벤처창업 생태계에 정부 자금의 공급이 넘쳐나고 있음에도 불구하고 초기 단계 기업들은 자금 투자의 필요성을 역설하고 다수가 자기자본으로 시작하고 있는 것이 현실이다. 이에 본 연구에서는 국내 창업벤처 및 육성 지원책을 고찰하고, 국내 벤처캐피털 투자현황을 분석하여, 초기 단계 벤처기업에 대한 투자 활성화를 위해 투자 방식의 개선, 투자 주체의 확대, 그리고 투자 유형의 다변화를 제시하고자 하였다. 또한 벤처생태계의 초기투자 활성화를 위한 정책 수립에 필요한 조사와 방안을 제시하였다.

• Proceedings of the Korea Society of Poultry Science Conference
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• 2003.11a
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• pp.97-98
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• 2003

This experiment was conducted to investigate the effect of restricted feeding to pullet on growth and laying Performance, egg qualify and endocrine Profile in brown layers. 1,080 brown-layer chicks divided to three diet treatments, conventional diet and two restricted diets, for 70 weeks. Conventional diets(C) was formulated by NRC recommendation, and one of restricted diet started from seven to seventeen week of age(T1), and another started from twelve to seventeen(T2) with adjusted eighty percentage amount of conventional diet. Body weight decreased with starting restriction of feeding comparing to the C(P＜0.05), but reached to similar weight in all treatments at twenty week regardless restriction. All of birds started to lay egg around 1,400 to 1,450gram of body weight though the age was in order of C, T2 and T1. Overall e99 Production was the highest in T1 (P＜0.05) and there were not difference in C and T2. Average egg weight also showed similar to the tendency of egg production. Feed intake was higher in T1 during maximum production(P＜0.05), but there were not difference in all treatments after the peak. Overall feed conversion ratio improved in T1 compared to C and T1(p＜0.05). Restriction feeding in rearing period could be beneficial to improve egg productivity and to decrease feed cost.