초록

1. 축종별 한국 온습도 환경에 맞는 THI Chart를 개발함으로써, 여름철 온도와 습도에 따라 가축이 스트레스를 받는 정도를 과학적으로 판단하고 그에 맞는 사양관리 가이드라인을 제시하였음
2. 실시간 기상정보를 활용한 산란계사 THI관리 및 대책 알리미 앱을 개발 및 배포하였음
3. 가축에서 고온스트레스 지표가 되는 생체 대사물질을 분석하고 축종별 생체 대사물질 변화를 구명하였음

(출처 : 요약서 3p)

Abstract ▼

□ Purpose&Contents
• Developing temperature-humidity index (THI) prediction model and its application on poultry stress impacts due to external environmental changes as well as creation of customizable THI charts that enable us to anticipate for dealing with the possible reduced productivity and

□ Purpose&Contents
• Developing temperature-humidity index (THI) prediction model and its application on poultry stress impacts due to external environmental changes as well as creation of customizable THI charts that enable us to anticipate for dealing with the possible reduced productivity and preventing higher death rate due to heat stress in livestock.

□ Results
• In this study THI chart was developed for livestock according to the temperature and humidity values in Korea. This THI chart will be used as a tool to reduce heat stress by identifying the degree of heat stress influence on livestock according to the temperature and humidity during summer and followed by suggesting guidelines to later specification management appliance according to hot-humid environmental conditions.
• According to the humidity effects on dry cows and based on existing THI chart, four levels of heat stress ranges including of Threshold (69~73), Mild (74~80), Moderate (81~89), and Severe (90~99) heat stress were classified based on the developed Korea THI chart and specification management guidelines for each range.
• According to the humidity impacts on early lactation Holstein cows, four levels of heat stress ranges including Threshold (69~72), Mild (73~79), Moderate (80~88), and Severe (89~98) were classifiedbased on developed Korea THI chart and specificationmanagement guidelines for each range.
• According to the temperature and humidity of laying hens, four levels of heat stress ranges including Comfort zone (15~20), Alert zone (21~25), Danger zone (26~29), Emergency zone (30~40) were classified based on the developed Korea THI chart and specification management guidelines for each range.
• According to the domestic climatic environment in growing-finishing pigs, four levels heat stress ranges including Normal (59~73), Alert (74~76), Danger (77~79), Emergency (80~113) can be classified based on the developed Korea THI chart andspecification management guidelines for each range.
• Cross-ventilation-type Windowless Layer House
- Ambient Temperature-THI : y = -0.0143x2 + 1.4552x – 2.2624 (R2 = 0.9328)
- Enthalpy-THI : y = 0.1512x2 – 3.8855x + 48.551 (R2 = 0.5149)
• Tunnel-ventilation-type Windowless Layer House
- Ambient Temperature-THI y = -0.0189x2 + 1.7037x – 4.6349 (R2 = 0.9551)
- Enthalpy-THI : y = y = 0.0374x2 – 0.0641x + 17.475 (R2 = 0.6044)
• In cross ventilation, the height of the inlet shall be lower than that of the exhaust air and the installation of additional ventilation and ventilation fan at the top of the ceiling or side is required to resolve the congestion of air in the upper part. It is deemed that the tunnel ventilation system requires the installation of additional inlet air at the top of the side wall of the stairway for mitigating the stagnant air from the inlet. We developed and distributed the laying hens THI, management and countermeasure notification app using real-time weather information.
• Bio-metabolites used as indicators of heat stress were analyzed and changes in bio-metabolites for each species were examined.

□ Expected Contribution
• Minimizing economic damage to dairy farms caused by heat stress and increasing gross income.
• The Korea-based THI chart of dairy cows will be used to develop and commercialize nutrient requirements and feed supplementation programs according to the climate change.
• Promoting livestock welfare will ensure consumer health as first-hand consumer of livestock production and food.
• Not only is it possible to respond quickly to heat stress but it is also expected to be used as research data to continuously collect data depending on the cause and conditions of heat stress and to anticipate environmental stress regarding climate change in thefuture.
• It is possible to identify heat stress levels in poultry and developing farm apps.
• It is possible to minimizing domestic productivity decrease rate in summer by providing domestic customized temperature and humidity index (THI) by combining the data that were obtainedfrom domestic and international studies.
• By measuring and controlling the factors involving heat stress using various indicators obtained through these research, it is possible to provide optimized breeding for livestock according to the environmental conditions, which can be used to improve animal welfare and applied to advanced technologies such as ICT to reduce economic losses.
• Prediction of THI based on meteorological administration information to decrease the effects of heat stress in livestock.
• Developing an app that predicts THI with real-time meteorological data and informs in real time.
• Building-up real-time THI notification apps and devices or facilities that reduce heat stress.
• Preventing death caused by heat stress can minimize farm economy losses and contribute to increase farm’s income bymaintaining the animals productivity.
• Reducing heat stress to improve livestock welfare and ensure consumer health that consume livestock products and food/eggs
• It can be used for education purpose of livestock farming by suggesting guidelines for improvement of management, suggestingimprovement methods and promoting data on research results.
Given the above benefits and contributions, the value of livestock industry can be expanded to secure national competitiveness.

(출처 : SUMMARY 7p)

목차 Contents

• 표지 ... 1
• 제출문 ... 2
• 보고서 요약서 ... 3
• 국 문 요 약 문 ... 5
• Summary ... 7
• 목차 ... 10
• 제 1 장 연구 개발 과제의 개요 ... 11
• 제1절 연구 개발 목적 ... 11
• 제2절 연구 개발의 필요성 ... 12
• 제3절 연구 개발 범위 ... 17
• 제 2 장 연구 수행 내용 및 결과 ... 18
• 제1절 젖소의 THI chart 및 사양관리 가이드라인 개발 ... 18
• 제2절 산란계의 THI chart 및 사양관리 가이드라인 계발 ... 46
• 제4절 환경 조건별 계사 내부 실시간 THI 예측 모형과 실시간 THI 예보 앱의 개발 및 보급 ... 148
• 제5절 고온스트레스에 의한 가축의 생체 대사물질 특성 변화 연구 ... 185
• 제 3 장 목표달성도 및 관련분야 기여도 ... 198
• 제1절 목표대비 달성도 ... 198
• 제2절 정량적 성과(논문게재, 특허출원, 기타)를 기술 ... 200
• 제 4 장 연구 결과의 활용 계획 ... 201
• 제1절 추가연구의 필요성 및 타 연구 응용방안, 기업화 추진방안 ... 201
• 제 5 장 연구 개발 결과의 보안 등급 ... 201
• 제 6 장 연구시설·장비종합정보시스템에등록한연구시설·장비현황 ... 201
• 제 7 장 연구개발과제의 대표적 연구실적 ... 202
• 제1절 제 1세부 건국대학교 ... 202
• 제2절 제 2세부 건국대학교 ... 204
• 제3절 제 1협동 충남대학교 ... 205
• 제4절 제 2협동 경상대학교 ... 206
• 제5절 제 3협동 축산과학원 ... 206
• 제 8 장 기타사항 ... 207
• 제 9 장 참고문헌 ... 208
• 끝페이지 ... 215