Journal of Animal Science and Technology

Korean Society of Animal Sciences and Technology (한국축산학회)
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Effect of Different Legumes on Dry Matter Yield and Quality in Mixtures

혼파초지의 두과초종 차이가 건물수량 및 품질에 미치는 영향

  • Lee, I.D. (Division of Animal Science and Resources, College of Agriculture and Life Science, Chungnam National University) ;
  • Lee, Hyung-Suk (Woosong Information College)
  • Published : 2005.12.31
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Abstract

The objective of this experiment was conducted to evaluate the effect of various legumes in mixtures: AA mixtures(orchardgrass 40%+tall fescue 25%+Kentucky bluegrass 15%+alfalfa 20%), RC mixtures (orchardgrass 40% + tall fescue 25% + Kentucky bluegrass 15% + red clover 20%) and WC mixtures (orchardgrass 50% + tall fescue 25% + Kentucky bluegrass 15% + white clover 10%). The field trials were conducted from 2000 to 2003 at Chungnam National University in order to evaluate the dry matter yield and forage quality on different legumes in mixtures. The dry matter yield was significantly higher in WC mixtures than in other mixtures(p<0.05). In the chemical composition, the content of crude protein and dry matter digestibility were higher in WC mixtures than in other mixtures. However, the content of fibrous constituents of WC mixtures was lower than in other mixtures. The yields of crude protein dry matter and digestible dry matter were significantly higher in WC mixtures than in other mixtures. In botanical composition of alfalfa, red clover and white clover in each mixture were maintained 21%, 36% and 48% respectively, at the last cutting time in 2003. The results of this experiment indicated that WC mixtures were more effective in enhancing the DM yield and forage quality, but it needs to control the optimum botanical composition of WC.

본 시험은 2000년 9월부터 2003년 12월까지 충남대학교 생명과학대학내 부속 초지시험포장에서 수행하였다. 공시된 두과초종을 달리한 혼파초지는 alfalfa 혼파초지(AA mixtures, orchardgrass 40%+tall fescue 25%+Kentucky bluegrass 15%+alfalfa 20%), red clover 혼파초지(RC mixtures, orchardgrass 40%+tall fescue 25%+Kentucky bluegrass 15%+red clover 20%) 및 white clover 혼파초지(WC mixtures, orchardgrass 50%+tall fescue 25% + Kentucky bluegrass 15%+white clover 10%)의 3처리를 두어 시험하였다. 얻어진 결과는 다음과 같다. 3년 평균 ha당 건물수량은 white clover(WC) 혼파초지(12,469kg)가 red clover(RC) 혼파초지(11,813kg)나 alfalfa(AA) 혼파초지(10,485kg)에 비하여 높은 결과를 보였다(p<0.05). CP 함량은 WC 혼파초지가 다른 두과 혼파초지에 비하여 높았던 반면에 섬유소물질의 함량은 상대적으로 낮은 양상을 보였으며(p<0.05), 건물소화율(DMD)은 WC 혼파초지가 다른 두과 혼파초지에 비하여 높은 결과를 보였다(p<0.05). 조단백질수량(CPDM)과 가소화건물수량(DDM)은 WC 혼파초지가 RC나 AA 혼파초지에 비하여 현저히 높은 결과를 보였다(p<0.05). 2003년도 5회 마지막 예취시 AA, RC 및 WC의 식생비율은 각각 21, 36 및 48%으로 WC의 식생비율이 현저히 높은 결과를 나타내었다. 이상의 결과로 보아 건물수량, 생산된 초류의 품질을 고려할 때 WC 혼파초지가 효과적이었으나 WC의 식생유지 관리가 필요하다고 사료된다.

Keywords

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