Studies on the Voluntary Intake According to Growth Stage of Sorghum×Sudagrass Hybrid and Soybean in Mono and Inter Cropping

수수 × 수단그라스 교잡종과 대두와의 단작 및 간작에 따른 생육단계별 자유채식량에 관한 연구

  • Lee, S.M. (Department of Animal Science, Sang Ju National University) ;
  • Moon, S.H. (Animal Resources Research Center, Kon-Kuk University) ;
  • Jeon, B.T. (Animal Resources Research Center, Kon-Kuk University)
  • 이상무 (상주대학교 축산학과) ;
  • 문상호 (건국대학교 동물자원연구센터) ;
  • 전병태 (건국대학교 동물자원연구센터)
  • Published : 1999.03.30

Abstract

This experiment was carried out to determine voluntary intake according to growth stage of sorghum $\times$ sudangrass hybrid in mono and intercropping. The results obtained from these experiments are as follows; Crude protein content of intercropping cultivation(sorghum $\times$ sudangrass hybrid + soybean) was higher than monocropping(sorghum $\times$ sudangrass hybrid), while ADF content was not different. Intake rates of leaf and stem showed highly at the intercropping comparing with monocropping(180cm~milk stage), but there was no difference at dough and yellow stage. Also, voluntary intake of fresh and dry matter showed same tendency. Voluntary intake of dry matter was the highest value of $98.4g/kg^{0.75}$ at milk stage treatment of intercropping. The intakes of crude protein were 9.6, 8.5, 7.2 and $7.2g/kg^{0.75}$ at 180cm, 250cm, boot stage and milk stage of intercropping treatment, respectively. These were higher than those for monocropping treatment. As mentioned above the results, intercropping cultivation could be recommended as increasing method of sorghum $\times$ sudangrass hybrid utilization when intake of dry matter and crude protein were considered.

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