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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 216 - 222 (7page)
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초록· 키워드
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This study was conducted to examine the effect of corn (Zea mays L.) - soybean (Glycine max L.) silage prepared by intercropping method on the nutritive value of the silage, in vitro rumen fermentation characteristics, dry matter degradability, as well as milk yield and milk composition of dairy cows. In a couple of experiments intercropped corn-soybean silage (CSBS) was compared with corn silage (CS) and/or Italian ryegrass hay (IRG). Numerically, CSBS had higher crude protein, ether extract, and lactic acid contents compared to CS. In vitro rumen fermentation analysis demonstrated that up to a 24-h incubation period, both CS and CSBS showed higher total gas production, ammonia N concentration, and dry matter degradability compared to IRG (p<0.05). The investigation on animals was conducted in a commercial dairy farm located in Gyeongju, South Korea, employing 42 Holstein cows that were divided into 2 group treatments: CS and CSBS in a completely randomized design. Although no significant difference was observed in milk yield, animals fed on CSBS showed significantly higher milk protein (p<0.05) and milk fat content (p<0.01), compared to animals fed on CS. Taken together, our findings indicate that corn-soybean silage that is cultivated, harvested, and prepared through intercropping can improve the protein content of the silage, and can also enhance in vitro rumen fermentation, dry matter degradability, and performance of dairy cattle.
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참고문헌 (26)
참고문헌 신청
AOAC / 1995 / Official Methods of Analysis of AOAC / Association of Official Analytical Chemists
Baxter, H. D. / 1984 / Comparison of soybean-grain sorghum silage with corn silage for lactating cows / Journal of Dairy Science 67:88~96
Budakli, C. E. / 2016 / Nutritive values of soybean silages ensiled with maize at different rates / Legume Research 39:810~813
Cabrita, A. R. J. / 2011 / Effects of dietary protein concentration and balance of absorbable amino acids on productive responses of dairy cows fed corn silage-based diets / Journal of Dairy Science 94:4647~4656
Chaney, A.L. / 1962 / Modified reagents for determination of urea and ammonia / Clinical Chemistry 8:130~132
Baxter, H. D. / 1984 / Comparison of soybean-grain sorghum silage with corn silage for lactating cows / Journal of Dairy Science 67:88~96
Budakli, C. E. / 2016 / Nutritive values of soybean silages ensiled with maize at different rates / Legume Research 39:810~813
Cabrita, A. R. J. / 2011 / Effects of dietary protein concentration and balance of absorbable amino acids on productive responses of dairy cows fed corn silage-based diets / Journal of Dairy Science 94:4647~4656
Chaney, A.L. / 1962 / Modified reagents for determination of urea and ammonia / Clinical Chemistry 8:130~132
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