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Studies on Quality of Silage from Domestic Herbages IV. Effects of starch addition on the quality of leaf and stem silage of kudzu
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야초 사일리지의 품질향상에 관한 연구 III. 칡 사일리지에 있어서 잎과 줄기의 전분첨가효과

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Type
Academic journal
Author
김종쾌 (동아대학교 농과대학) 이상훈 (동아대학교 농과대학) 김영규 (동아대학교 농과대학) 김대진 (동아대학교 농과대학)
Journal
THE KOREAN SOCIETY OF GRASSLSND SCIENCE 한국초지조사료학회지 한국초지조사료학회지 제11권 제1호 KCI Accredited Journals
Published
1991.1
Pages
60 - 67 (8page)

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Studies on Quality of Silage from Domestic Herbages IV. Effects of starch addition on the quality of leaf and stem silage of kudzu
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This experiment was conducted to investigate the effects of starch addition on the fermentative quality and dry matter digestibility(DMD) of Kudzu(Puerari~ thzmbergii Bentham) silage. The herbages was ensiled by the conventional methods in small plastic silo of 7.5 liters with addition of starch of 0 %, 2 %, 4 74, 6 % and 8 %, respectivery. The samples of kudzu silage were separated into leaf and stem, and was determined the pH, organic acid and characteristics of fiber such as neutral detergent fiber(NDF), acid detergent liber(ADF) and acid detergent lignin(ADL). The DMD of leaf and stem silage were evaluated by pepsin-cellulase technique method. The energy values(tota1 digestible nutrients, TDN; digestible energy, DE; metaboliz;~bie energy. ME) were calculated by DMD. The results obtained were as follows: 1. The fiberous meterials(such as NDF, AIIF and ADL) of leaf and stem were decreased with increasing levels of starch(p<O. 05). 2. The hemicellulose of leaf was increased with increasing levels of starch, however that of stem was decreased( p<O. 05). 3. In the leaf of kudju silage soluble cell contents was significantly improved than hemicellulose conduct by starch addition. 4. In increasing levels of starch with 8 Q, the DM11 of stem was more improved as 6.04 Q than leaf by 3.58 %(p<O, 05). Therefore, in DMD, the leaf and stem were increased by 0.45 55 and 0.73 '3, respectively, per percent of added starch(p<O. 05). 5. Regression equation and correlation coefficients between level of starch(X) and DMD of silage(Y) were Y = 56.2+ 0.45 X, r=0.925(p<0.01) in leaf and YZ45. 1 + 0. 73 X, r=0.927(p<O. 01) in stem, respectively. In conclusion, the quality of stem in kudju silage was more improved than that of leaf by starch addition.

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