Journal of The Korean Society of Grassland and Forage Science (한국초지조사료학회지)

The Korean Society of Grassland and Forage Science (한국초지조사료학회)
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Development of Crushing Device for Whole Crop Silage and the Characteristics of Crushed Whole Crop Silage

총체맥류 분쇄기 개발 및 분쇄 총체맥류 사일리지의 품질 특성

  • Lee, Sunghyoun (Department of Agricultural Engineering, National Institute of Agricultural Sciences) ;
  • Yu, Byeongkee (Department of Agricultural Engineering, National Institute of Agricultural Sciences) ;
  • Ju, Sunyi (Department of Agricultural Engineering, National Institute of Agricultural Sciences) ;
  • Park, Taeil (National Institute of Crop Science)
  • Received : 2016.09.05
  • Accepted : 2016.10.13
  • Published : 2016.12.31
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Abstract

This study was conducted to evaluate the possibility of expanding the usage of whole crop silage from beef cattle and dairy cow to hogs and chickens. For this purpose, a crushing device was developed to crush whole crop silage. The crushed silage was sealed, and analyzed for its feed value. The silage varieties used for the experiment included Saessal barley and Geumgang wheat. Whole crop barley and wheat were crushed in the crushing system as a whole without separating stems, leaves, grains, etc.. When the crushed whole crop silages (CWCS) were analyzed, full grain, grains above 10 mm in size, grains 5~10 mm in size, and grains below 5 mm in size accounted for, 20%, 4%, 27%, and 49 %, respectively. In order to facilitate the fermentation of CWCS, inoculated some fermenter into each CWCS sample (barley or wheat). As control, another set of sample was not inoculated. Crude protein (CP), ether extract (EE), crude fiber (CF), neutral detergent fiber (NDF), acid detergent fiber (ADF), lignin, cellulose content, total digestible nutrient (TDN), and relative feed value (RFV) of fermenter-inoculated Saessal barley were 2.45 %, 1.61%, 8.95%, 16.94%, 9.52%, 1.01%, 8.51%, 81.38%, and 447.5%, respectively. The CP, EE, CF, NDF, ADF, lignin, cellulose content, TDN, and RFV in the other sample of Saessal barley without inoculation of fermenter were 2.57%, 1.62%, 9.61%, 18.25%, 10.13%, 1.10%, 9.04%, 80.90%, and 412.9%, respectively. The CP, EE, CF, NDF, ADF, lignin, cellulose content, TDN, and RFV of fermenter-inoculated Geumgang wheat sample were 2.43%, 1.27%, 10.99%, 19.49%, 11.23%, 1.46%, 9.77%, 80.03%, and 382.6%, respectively. The CP, EE, CF, NDF, ADF, lignin, cellulose content, TDN, RFV of the other set sample of Geumgang wheat sample without the inoculation of fermenter were 2.28%, 1.44%, 10.08%, 18.02%, 10.44%, 1.26%, 9.18%, 80.65%, and 416.9%, respectively. The TDN and RFV content in the fermenter-inoculated Saessal barley were 81.38% and 447.5%, respectively, while the one in the fermenter-inoculated Geumgang wheat were 80.03% and 382.6% respectively. When the feed value of whole crop barley and wheat silage without crushing process was compared to the feed value of whole crop barley and wheat silage made from crushing system, the latter appeared to be higher than the former. This could be due to the process of sealing the crushed silage which might have minimized air content between samples and shortened the golden period of fermentation. In conclusion, these results indicate that a crushing process might be needed to facilitate fermentation and improve the quality of silage when making whole crop silage.

본 연구에서는 주로 한(육)우, 낙농 등에서 이용되는 총체맥류 조사료를 돼지, 닭 등에게까지 확대 이용 가능성을 모색하기 위하여 수행하였다. 이를 위해 총체맥류를 분쇄할 수 있는 시스템을 개발하였고 분쇄시스템을 통해 분쇄한 총체맥류를 비닐 백에 밀봉 저장한 후 사료가치를 분석하였다. 총체맥류는 Fig. 4에서 보는 바와 같이 수확 직후 줄기, 잎, 곡실 등을 분리하지 않고 원형 그대로 분쇄장치에 투입하였다. 분쇄되어 배출된 총체맥류의 분쇄상태를 분석한 결과 알곡 20%, 10 mm 이상 4%, 5~10 mm 27%, 5 mm 이하 49%로 매우 미세하게 분쇄되는 것으로 나타나 단위동물의 배합사료에 일정비율 혼합하여 급이 하는 것이 가능할 것으로 판단되었다. 분쇄 직후 밀봉하여 상온에서 저장한 총체맥류 사일리지는 약 3개월이 지난 시점에서 품질을 분석하였다. 시험에 사용한 총체맥류는 새쌀보리와 금강밀이다. 분쇄된 총체맥류의 발효를 촉진하기 위하여 하나에는 발효제를 접종하였고 다른 하나는 발효제를 접종하지 않았다. 발효제를 접종한 분쇄 총체 새쌀보리의 조단백질, 조지방, 조섬유, NDF, ADF, 리그닌, 셀룰로스 함량은 2.45%, 1.61%, 8.95%, 16.94%, 9.52%, 1.01%, 8.51%로 나타났으며 TDN, RFV는 81.38%, 447.5%로 나타났다. 발효제를 접종하지 않은 총체 새쌀보리의 조단백질, 조지방, 조섬유, NDF, ADF, 리그닌, 셀룰로스 함량은 2.57%, 1.62%, 9.61%, 18.25%, 10.13%, 1.10%, 9.04%로 나타났으며 TDN, RFV는 80.90%, 412.9%로 나타났다. 발효제를 접종한 분쇄 총체 금강밀의 조단백질, 조지방, 조섬유, NDF, ADF, 리그닌, 셀룰로스 함량은 2.43%, 1.27%, 10.99%, 19.49%, 11.23%, 1.46%, 9.77%로 나타났으며 TDN, RFV는 80.03%, 382.6%로 나타났다. 발효제를 접종하지 않은 총체금강밀의 조단백질, 조지방, 조섬유, NDF, ADF, 리그닌, 셀룰로스 함량은 2.28%, 1.44%, 10.08%, 18.02%, 10.44%, 1.26%, 9.18%로 나타났으며 TDN, RFV는 80.65%, 416.9%로 나타났다. 발효제를 접종한 것과 발효제를 접종하지 않은 분쇄 총체맥류 사일리지의 상대적 사료가치를 평가한 결과 새쌀보리의 경우 발효제를 첨가한 것이 높았으며, 금강밀의 경우 발효제를 첨가하지 않은 것이 높은 것으로 나타났다. 따라서 총체맥류 분쇄 사일리지를 조제할 때 품종에 따라 발효제의 첨가 여부를 결정하는 것이 중요할 것으로 판단되었다. 또한 Ju 등(2009, 2011)의 TDN과 RFV를 비교 분석한 결과 발효제의 접종 여부와 관계없이 분쇄 총체맥류 사일리지의 TDN과 RFV가 월등히 높은 것으로 나타났다. 따라서 총체맥류 사일리지 조제시 수확${\rightarrow}$분쇄${\rightarrow}$밀봉의 과정을 거쳐 사일리지를 조제하는 것이 조사료 이용효율을 높일 수 있을 것으로 판단된다.

Keywords

References

  1. AOAC. 1995. Official method of analysis (15th ed.), Association & Official Analytical Chemists, Washington DC.
  2. Goering, H.K. and Van Soest, P.J. 1970. Forage fiber analysis. Agic. Handbook 379, U. S. Gov. print. Office Washington, DC.
  3. Holland, C., Kezar, W., Kautz, W.P., Lazowski, E.J., Mahanna, W.C. and Reinhart, R. 1990. Pioneer hi-bred international, Inc., Des moines, IA.
  4. https://www.gov.mb.ca
  5. http://www.uwex.edu/ces/crops/uwforage/storage.htm
  6. http://www.koreapork.or.kr
  7. Hwang Jongjin, Byungryelo Sung, Kyubok Youn, Wansik Ahn, Jongho Lee, Kyuyong Chung and Youngsang Kim. 1985. Forage and TDN yield of several winter crops at different clipping date. Korean Journal of Crop Science. 30:301-309.
  8. Ju Jungil, Donghee Lee, Yeulgue Seong, Oukkyu Han, Taehwa Song, Kwangwon Lee and Changho Kim. 2010. Comparisons of growth, yield and feed quality at spring sowing among five winter cereals for whole-crop silage use. J. Kor. Grassl, Forage Sci. 30(3):205-216. https://doi.org/10.5333/KGFS.2010.30.3.205
  9. Ju Jungil, Heebong Lee, Oukkyu Han, Taehwa Song and Heechung Ji. 2011. Growth characters and yield of wheat species depend on soil fertility in paddy field. J. Kor. Grassl, Forage Sci. 31(4): 345-352. https://doi.org/10.5333/KGFS.2011.31.4.345
  10. Ju Jungil, Hyungu Choi, Youngsik Gang, Joungjun Lee, Kihun Park and Heebong Lee. 2009. Changes of growth and forage yield at different cutting dates among five winter cereals for whole crop silage in middle region. J. Kor. Grassl, Forage Sci. 29(2):111-120. https://doi.org/10.5333/KGFS.2009.29.2.111
  11. Kim Dongam, Chanho Kwon and Kunjun Han. 1992. Effect of harvesting dates on forage yield and quality of winter rye. J. Korean Grassl. Sci. 12(3):173-177.
  12. Ministry of Agriculture, Food and Rural Affairs. 2015. Major statistics of agriculture. MAFRA
  13. Park N.B., Kwack, C.H. and Ko, Y.D. 1984. Effect of formic acid addition on the quality of barley silage in accordance with growth stage. J. Korean Grassl. Sci. 4(3):214-219.
  14. Song Taehwa, Oukkyu Han, Sunggeun Yun, Taeil Park, Kyunghunn Kim and Kijong Kim. 2009a. Effect of pre-wilting time on change of the moisture content and its silage quality at different harvest stages of whole crop barley. J. Korean Soc. Int. Agric. 21(4):316-321.
  15. Song Taehwa, Oukkyu Han, Sunggeun Yun, Taeil Park, Kyunghunn Kim and Kijong Kim. 2010. Effect of pre-wilting time on the change of moisture content and its silage quality at different harvest stages of whole crop oat. J. Kor. Grassl, Forage Sci. 30(2):135-142. https://doi.org/10.5333/KGFS.2010.30.2.135
  16. Song Taehwa, Oukkyu Han, Sunggeun Yun, Taeil Park, Jaehwan Seo, Kyunghunn Kim and Gihun Park. 2009b. Changes in quantity and quality of winter cereal crops for forage at different growing stages. J. Kor. Grassl, Forage Sci. 29(2):129-136. https://doi.org/10.5333/KGFS.2009.29.2.129