표제지
ABSTRACT
목차
기호 및 약어 설명 9
제1장 서론 10
제2장 연구사 13
제3장 실험방법 15
제1절 사양시험 15
1. 시험기간 및 시험목장 15
2. 시험사료 15
3. 시험설계 및 사양조건 16
제2절 분석항목 22
제3절 통계분석 22
1. 목장별 통계분석 처리효과 22
2. 분석프로그램 24
제4장 결과 및 고찰 25
제1절 반추위 보호 비타민 B 복합체(RPB) 급여가 젖소의 유생산성에 미치는 영향 (분석 1) 25
1. 실험목장별 유생산성과 유성분 월별 변화 25
2. 유량과 에너지 보정유 생산량(ECM) 26
3. 유지방과 유단백질 27
4. 무지고형분(SNF) 29
5. 우유 요소태 질소(MUN) 30
6. 체세포수(SCC) 30
7. 유지방과 유단백질 생산량, 우유 정미에너지, 유지방과 유단백질 비율 31
제2절 반추위 보호 비타민 B 복합체(RPB)의 급여가 젖소의 여름철 Heat stress에 미치는 영향(분석 2) 39
1. 실험목장별 유생산성과 유성분 월별 변화 39
2. 반추위 보호 비타민 B 복합체 비급여 목장의 고온 스트레스 회복 효과 41
3. 반추위 보호 비타민 B 복합체 급여 목장의 고온 스트레스 회복 효과 41
제3절 반추위 보호 비타민 B 복합체(RPB) 급여 수준이 젖소의 유생산성에 미치는 영향 (분석 3) 50
1. 실험 목장별 유생산성과 유성분 월별 변화 50
2. 반추위 보호 비타민 B 복합체 급여 수준에 따른 목장별 효과 52
3. 반추위 보호 비타민 B 복합체 급여 수준에 따른 목장 A, B의 종합 효과 52
참고문헌 61
국문요약 64
Table 1. Head distribution of each farms 17
Table 2. Rumen Protected B Vitamin complex Composition. 18
Table 3. TMR Composition of experimental diet 19
Table 4. TMR Chemical composition of experimental diet 20
Table 5. Effect of dietary Rumen Protected B vitamins on milk production and composition of Holstein dairy cows (Farm A) 36
Table 6. Effect of dietary Rumen Protected B vitamins on milk production and composition of Holstein dairy cows (Farm B) 37
Table 7. Total effect of dietary Rumen Protected B vitamins on milk production and composition of Holstein dairy cows 38
Table 8. Effect of summer season on milk production of Holstein dairy cow (Farm C) 47
Table 9. Effect of summer season on milk production of Holstein dairy cow (Farm D) 48
Table 10. Effect of dietary Rumen Protected B vitamins on milk production of Holstein dairy cow after heat stress condition (summer season) 49
Table 11. Effect of dietary Rumen Protected B vitamins levels on milk production of Holstein dairy cow (Farm A) 58
Table 12. Effect of dietary Rumen Protected B vitamins levels on milk production of Holstein dairy cow (Farm B) 59
Table 13. Effect of dietary Rumen Protected B vitamins levels on milk production of Holstein dairy cow (All) 60
Figure 1. Design of experiment for analysis 21
Figure 2. Descriptive statistics of milk production (A) and energy corrected milk (ECM, B) of each farm for test month. 32
Figure 3. Descriptive statistics of milk fat (A) and milk protein contents (B) of each farm for test month. 33
Figure 4. Descriptive statistics of solid not fat content (SNF, A), milk urea nitrogen (MUN, B) and somatic cell counts (SCC, C) of each farm for test month. 34
Figure 5. Descriptive statistics of milk fat yield (A) and milk protein yield (B) of each farm for test month. 35
Figure 6. Changes of milk (A) and energy corrected milk (ECM, B) of each farms for test month. Error bar indicates standard error. Dark box and grey box means with B... 43
Figure 7. Changes of milk fat (A) and milk protein content (B) of each farms for test month. 44
Figure 8. Changes of solid not fat (SNF, A), milk urea nitrogen (MUN, B) and somatic cell counts (SCC, C) of each farms for test month. Error bar indicates standard error. Dark box and... 45
Figure 9. Changes of milk fat yield (A) and milk protein yield (B) of each farms for test month. 46
Figure 10. Effect of rumen protected B vitamins and test month on milk production (A) and energy corrected milk (ECM, B) of each farm. 54
Figure 11. Effect of rumen protected B vitamins and test month on milk fat (A) and milk protein (B) contents of each farm. 55
Figure 12. Effect of rumen protected B vitamins and test month on solid not fat (A), milk urea nitrogen (B) and somatic cell counts (C) of each farm. 56
Figure 13. Effect of rumen protected B vitamins and test month on milk fat yield (A) and milk protein yield (B) of each farm. 57