Effect of Harvest Stage of Corn on Nutritive Values and Quality of Roll Baled Corn Silage Manufactured with Corn Grown in Paddy Land
2011
Choi, K.C., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Jo, N.C., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Jung, M.W., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Lee, K.D., Dongshin University, Naju, Republic of Korea | Kim, J.G., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Lim, Y.C., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Kim, W.H., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Oh, Y.K., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Choi, J.H., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Kim, C.M., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Jung, D.K., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Choi, J.M., National Institute of Animal Science, RDA, Cheonan, Republic of Korea
This study was carried out to examine the effect of harvest stage of corn on nutritive values and quality of round baled corn silage manufactured with corn grown in paddy land of Department of Animal Resources Development, National Institute of Animal Science, RDA from 2009 to 2010. Corn "Kwangpyungok" was harvested at three different growth times (milk, yellow ripen and ripen stage) and ensiled at each harvest stages. Crude protein (CP) and TDN (total digestible nutrient) contents of round baled corn silage was decreased and in vitro dry matter digestibility (IVDMD) was not changed with delayed harvest maturity. However, contents of ADF (acid detergent fiber) and NDF(neutral detergent fiber) decreased with delayed harvest maturity. The pH at three different harvest stages ranged from 3.8 to 4.0. The content of lactic acid increased with delayed harvest maturity, but the content of acetic acid decreased. And then, flieg's score reveals that there is an increase in order, ripen stage greater than yellow ripen stage greater than milk stage. Therefore, this study suggest that round baled corn silage manufactured at yellow ripen stage can improve the silage quality.
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