초록 ▼

Ⅳ. 연구개발결과
○ 국내 생산되는 조사료의 수확시기(동계, 하계), 가공방법(사일리지)에 따른 화학적 사료 가치 평가를 실시하여 데이터 분석을 실시하였다. 또한 수입 되는 사료의 연간 수입건수, 원산지별 수입 원료의 분포도 조사를 실시하였다. 총 77종, 2,099점, 분석건수 28,188건의 데이터를 수집하였다. 한국표준사료성분표의 영양성분 함량 DB구축 및 업데이트를 위한 영양성분 분석자료의 정확도 및 신뢰성 확보를 위하여 미국의 AAFCO(Association of America Feed Control Officials

Ⅳ. 연구개발결과
○ 국내 생산되는 조사료의 수확시기(동계, 하계), 가공방법(사일리지)에 따른 화학적 사료 가치 평가를 실시하여 데이터 분석을 실시하였다. 또한 수입 되는 사료의 연간 수입건수, 원산지별 수입 원료의 분포도 조사를 실시하였다. 총 77종, 2,099점, 분석건수 28,188건의 데이터를 수집하였다. 한국표준사료성분표의 영양성분 함량 DB구축 및 업데이트를 위한 영양성분 분석자료의 정확도 및 신뢰성 확보를 위하여 미국의 AAFCO(Association of America Feed Control Officials : 미국사료검사관 협회) check sample program의 브라인드 테스트에 참여하여 Z score를 이용한 정확도 분석을 실시하여 양호한 결과는 나타냈으며. 한국표준사료성분표의 개정작업을 위해서 외국의 사료 성분표에 대한 제공 항목 및 데이터에 관한 조사 및 분석을 실시하였다. 일본의 경우 일본사료성분표 2009을 활용하였으며, 미국의 경우 반추가축(NRC 2001, CNCPS), 양돈의 경우에는 NRC 2012을 참고 하였으며, 유럽의 경우 프랑스 INRA에서 제공하고 있는 Feedipedia의 데이터를 분석을 실시하였다.Alfalfa, timothy, rapeseed oil meal, DDGS, corn gluten feed, cotton seed meal, wheat bran에 대한 반추위 내 분해율을 측정하였다. 단백피가 반추위에서 가장 높은 분해를 나타내었으며, DDGS가 가장 낮은 반추위내 분해율 특성을 나타내었다. 단백피가 가장 높은 건물 소화율을 나타냈으며, 티모시가 가장 천천히 분해를 보여줬다. 특이적으로 채종박 12~24시간 사이에 급격한 분해율을 나타내었다. 반추위 단백질 분해율에서는 건물 소화율과 유사한 분해율을 나타내었다. 조사료에서 중요한 NDF, ADF 소화율인 경우에는 12시간부터 분해가 되기 시작하였으며, 티모시 40%, 알팔파는 20%의 소화율 수치를 나타내었다.

Abstract ▼

This study was conducted to collect data for feed ingredients to revise 2017 standard table of Korean feed ingredients. Standard table of Korean feed ingredients provides information on proximate composition of feed ingredients(water, crude protein, crude fat, NFE, crude fiber, ash), TDN, DE, ME, NE

This study was conducted to collect data for feed ingredients to revise 2017 standard table of Korean feed ingredients. Standard table of Korean feed ingredients provides information on proximate composition of feed ingredients(water, crude protein, crude fat, NFE, crude fiber, ash), TDN, DE, ME, NE, amino acids content, mineral content, vitamins. These data are used for animal feed formulation. Since standard table of Korean feed ingredient was first issued in 1981, its 5^th edition was issued in 2012 and the 6^th edition will be released in 2017.
Ruminal degradability of alfalfa, timothy, rapeseed oil meal, DDGS, corn gulten feed, cotton seed meal, wheat bran were measured. Ruminal DM degradability of corn gluten feed was the highest among these 7 feeds, whereas ruminal DM degradability of timothy was the lowest among these 7 feeds. Especially, rapeseed oil meal was rapidly degraded in the rumen between 12 hours and 24 hours. Rate of ruminal protein degradability was similar to that of ruminal DM degradability. In both NDF and ADF degradability, the 7 feeds began to be degraded after 12 hours. NDF and ADF degradability of timothy was 40%, while that of alfalfa was 20%.
We collected information on standard tables of foreign countries and then referred to them in order to revise standard table of Korean feed ingredients. We referred to 2009 standard table of Japanese feed ingredients, US NRC 2001 for ruminants, US NRC 2012 for swine, and French INRA Feedipedia.
Recently, there has been a growing interest in the use of spent mushroom substrates (SMS) as Hanwoo feed due to their low cost. Before using SMS as Hanwoo feed, measurement of TDN is necessary to evaluate the feed value of SMS. An in vivo experiment is commonly used to estimate TDN but needs a lot of time and cost. The objective of this study was to find an alternative method to replace a TDN estimation method based on an in vivo experiment. As alternative methods, NRC 2001 model was used to estimate TDN of spent mushroom substrate of Flammulina velutipes (SMSF) and spent mushroom substrate of Pleurotus ostreatus (SMSP). TDN estimated by these a method was comparatively assessed against TDN estimated by an in vivo experiment. The average TDN of SMSF was slightly greater in the NRC 2001 model than in an in vivo experiment, whereas that of SMSP was slightly lower in the NRC 2001 model than in an in vivo experiment. Nonetheless, the average TDN estimated by the NRC 2001 model was marked with a range of TDN estimated in individual animals in an in vivo experiment. These results indicate that the NRC 2001 model may be an alternative method to estimate TDN of SMS instead of an in vivo experiment. More studies with other feed ingredients would need to be conducted to revise and verify these alternative methods for TDN estimation.
Notices of variety for winter forage crop are Italian Ryegrass(IRG), whole crop bare, Rye and Oats. Varieties of IRG are Greenfarm, Kowinery and whasan101. . Varieties of whole crop bare are Yuyeon, Wooho and Yeongyang. . Varieties of Rye are coolgryger and Goku. Variety of Oats is Highspeed. It is not change of height, stalk diameter but sugar content changed to raise form 2.5% to 5.7% on Growth characteristics of growth stage on forage corn’s. it is proper time of picking on corn is form dough-ripe stage to yellow ripe stage. Dry matter yield of sorghum is increased SX17 264%(21,192t/ha) , Jumbo 299%(19,689t/ha) and Choice 197% (15,895t/ha) than the earing season. Jumbo’s sugar contents are slightly changed from 2.4% to 3.3% but SX17’s sugar contents are rapidly increased from 2.3% to 5.2% and also Choice from 4.0% to 8.4%. Dry matter yield of winter forage crop is the best Ray (average 7,330kg.ha), 2^nd is bare and 3^rd is IRG. The Better yield variety isl ate maturing season variety. Younguang as bare and Koku as Rye are good for variety of dry matter yield. The mature time is passed, the more dry matter yield is increased. This is benefits in the manufacture of silage as to short pre drying time. It’s show that the mature is passed, the lower feed value at IRG and Rye, But bare is lower at ADF, NDF . IRG is the highest digestion rate, 2^nd is bare, 3^rd is Ray. IRG silage’CP is lowera bout 2~2.5%, bare and oats are lowera bout 6% between heading stage and flowering stage. Corn silage’s CP and digestion rate are the highest in summer forage silage. It is show the mature time is passed, the less CP and digestion rate are decreased.
We have analyzed 2,099 contents (proximate composition of feed ingredients, TDN, DE, ME, NE, amino acids content, mineral content or vitamins) in 77 different types of feeds. Accuracy and reliability for these analysis results were evaluated using Z score measured by AAFCO check sample program.