초록

본 연구는 육성기 젖소의 최적 에너지 급여 프로그램을 개발하기 위하여 수행함. 연구결과 고에너지군에서 우유생산량은 표준에너지군보다 증가하였음. 고에너지군의 유선 내 지방 침착이 표준에너군보다 증가함. 고에너지군에서 생산된 초유내의 면역관련 유효 단백질이 표준에너지군보다 적게 관찰됨

( 출처: 보고서 요약서 4p )

Abstract ▼

□ Purpose&Contents
The purpose of this study is to develop an optimal energy supply program for breeding dairy cows. Unstable and unrecognized energy levels lead to a decrease in overall productivity of dairy cows due to premature maturity and decreased ability to produce milk, resulting in enorm

□ Purpose&Contents
The purpose of this study is to develop an optimal energy supply program for breeding dairy cows. Unstable and unrecognized energy levels lead to a decrease in overall productivity of dairy cows due to premature maturity and decreased ability to produce milk, resulting in enormous economic losses. It is necessary to secure genetic indicators related to development of mammary gland and milk production and to maximize dairy industry modernization and pursuit of economic profit.

□ Results
1) The high hormone levels of estradiol and progesterone were significantly relatively high, and this was thought to be due to early sexual maturity. The results of endocrine index analysis showed that high energy feed grade and standard. There was no significant difference from the feed grade group.
2) Morphological analysis of the mammary gland tissue by Biopsy showed that high fat pad was observed in high energy diet group and the difference in casein secretion in the mammary gland tissue not observed.
3) In the colostrum of the standard energy group, relatively many immune-related factors are included than other groups
4) Development of in vitro predictive model for development of dairy cow line according to energy level. In the in vitro model, in the medium containing high glucose,casein expression was high.
5) As a result of experiment, TDN intake, body weight and flow rate were high in high energy group.

□ Expected Contribution
1) Technical understanding and regulation of endocrine system related to development of mammary gland. To increase farm income by securing of feeding manual and application method of dairy cow
2) Cost reduction through feed-in program development and farm production contribute to increase of milk production.
3) Reduction of premature maturity by the optimal energy level of milking cattle breeding
4) Based on the genetic expression level of mammary gland development, reducing generation gap and maximizing genetic improvement
5) To maximize the growth efficiency of livestock and ensure feed efficiency, Expected to reduce feed costs due to improvement, to raise income of farm.

( 출처: SUMMARY 6p )

목차 Contents

• 표지 ... 1
• 제 출 문 ... 3
• 보고서 요약서 ... 4
• 국 문 요 약 문 ... 5
• Summary ... 6
• 목차 ... 7
• 제 1 장 연구 개발 과제의 개요 ... 8
• 제1절 연구 개발 목적 ... 8
• 제2절 연구 개발의 필요성 ... 8
• 제3절 연구 개발 범위 ... 10
• 제 2 장 국내외 기술개발 현황 ... 11
• 제 3 장 연구 수행 내용 및 결과 ... 13
• 제 4 장 목표달성도 및 관련분야 기여도 ... 49
• 제1절 : 목표대비 달성도 ... 49
• 제2절 : 정량적 성과(논문게재, 특허출원, 기타)를 기술 ... 50
• 제 5 장 연구 결과의 활용 계획 ... 51
• 제 6 장 연구 과정에서 수집한 해외 과학 기술 정보 ... 52
• 제 7 장 연구 개발 결과의 보안 등급 ... 53
• 제 8 장 국가과학기술지식정보서비스에 등록한 연구시설·장비 현황 ... 54
• 제 9 장 연구개발과제 수행에 따른 연구실 등의 안전조치 이행실적 ... 55
• 제 10 장 연구개발과제의 대표적 연구실적 ... 56
• 제 11 장 기타사항 ... 57
• 제 12 장 참고문헌 ... 58
• 끝페이지 ... 60