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수수 · 수단그라스 사일리지 제조에 있어 BMR 품종과 파옥쇄 첨가 효과
권찬호,김은중,조상범,Kwon, Chan Ho,Kim, Eun Joong,Cho, Sangbuem 한국초지조사료학회 2014 한국초지조사료학회지 Vol.34 No.4
유기 축산을 위한 여름철 사료작물인 수수 수단그라스교잡종은 생산성이 높고, 잡초발생이 미미하며, 병충해에 의한 피해도 작아서 무농약 재배에 적합하다. 그러나 수수 수단그라스 교잡종은 당 함량이 부족하고, 수분 함량이 높아서 낙산발효로 인해 사일리지 품질에 문제가 있다. 최근 육성된 BMR (Brown Mid Rib) 품종은 줄기 내 당도가 높게 개발되었다. 따라서 본 시험은 기존의 수수 수단교잡종과 BMR 수수 수단교잡종을 재배하여 사일리지로 제조하고, 수분 조절 및 영양소 보충을 위해 파옥쇄를 첨가하여 사일리지의 품질변화를 관찰하였다. 수수 수단교잡종과 BMR 수수 수단교잡종 사이에 생육특성 및 생산성은 차이가 없었으나 줄기내 당 함량은 BMR 품종이 약 $2B^{\circ}$ 정도 높은 경향을 나타내었다(p<0.05). 유기산 중 lactic acid의 비율은 대조구(SX17품종)의 78.5%에 비해 BMR 품종은 82.8%로 유의적으로(p<0.05)에 높았고, butyric acid의 비율은 대조구(SX17품종)의 18.5%에 비해 BMR 품종은 9.8%로 유의적으로(p<0.05)에 낮아서 BMR 품종을 사용할 경우 품질이 크게 개선되었다. 파옥쇄 첨가시 첨가수준간에는 NDF 및 ADF 함량은 대조구(SX17) 품종과 BMR 품종(Diamond BMR) 모두 유의적으로 감소하였다(p<0.05). TDN 함량 역시 대조구(SX17) 품종의 56.2와 BMR 품종(Diamond BMR)의 57.1간에는 유의적 차이가 없었다. 그러나 파옥쇄 첨가시에는 대조구(SX17) 품종과 BMR 품종(Diamond BMR) 모두에서 파옥쇄의 첨가수준에 따라 TDN 함량이 유의적으로 증가하였다(p<0.05). The present study was conducted to evaluate the productivity of $Sorghum{\times}sudangrass$ (SX17) hybrid and BMR (brown mid rib) $Sorghum{\times}sudangrass$ hybrid and silage quality of these forages with corn grain supplementation. The effect of corn grain supplementation on the quality of silages was also investigated. No remarkable differences at growth characteristics and productivities in two hybrids were found. Sugar content, however, in stem of BMR hybrid showed significantly great (p<0.05) and the difference between two hybrids was about $2B^{\circ}$. Ratio of lactic acid in total organic acid in BMR hybrid (82.8%) was significantly greater than the control (SX17 hybrid) (78.5%) (p<0.05). Ratio of butyric acid in total organic acid in SX17 hybrid (18.5%) was significantly greater than BMR hybrid (9.8%) (p<0.05). According to the result of organic acid ratio, it could be assumed that the use of BMR hybrid can improve silage quality. NDF and ADF contents in both SX17 and BMR hybrids were significantly declined with increased corn grain supplementation (p<0.05). Different TDN values in SX17 (56.2) and BMR (57.1) hybrids were detected. However, TDN values of both SX17 and BMR hybrid silages were significantly elevated by increasing the proportion of ground corn (p<0.05).
종자 피복 재료 및 결착제가 겉뿌림 목초의 발아 및 초기생육에 미치는 영향
권찬호,김종관,김종덕,김동암,민두홍,한건준 한국동물자원과학회 2000 한국축산학회지 Vol.42 No.2
An experiment was conducted to evaluate the effects of peat moss, adhesives, and various phosphorus materials as coating materials on the germination and early growth of tall fescue (Festuca arundinacea Schr.), orchardgrass (Dactylis glomerata L.), alfalfa (Medicago saliva L.), and birdsfoot trefoil (Lotus corniculatus L.) at the Experimental Livestock Farm, Yonam College of Agriculture in 1997. Germinating energy of tall fescue seed coated with 10% peat moss was the highest, but germination was improved when peat moss was below 20%. Establishment and early growth of tall fescue seed coated were improved as the level of peat moss increased (not significant at p $lt; 0.05). Among different adhesives, germination of tall fescue seed coated with 3% cetyl-methyl cellulose was significantly higher than other adhesives, but no significant difference was observed in tall fescue with the percentage of coating materials. Germinating energy and germination of orchardgrass seed coated with tri-calcium phosphate (TCP) and mono-calcium phosphate (MCP) were higher than other phosphates (p $lt; 0.05). Germinating energy of tall fescue seed coated with TCP was the highest, but germination was improved when seed was coated with MCP. Germinating energy and germination of alfalfa seed coated with TCP were the highest among all treatments. Germinating energy of birdsfoot trefoil seed coated with MCP was higher compared with other phosphates (p $lt; 0.05). However, germination of birdsfoot trefoil seed was not influenced by coating. Tall fescue seed coated with below 20% peat moss gave greater improvement in germinating energy and germination. TCP shown a positive effect on germination. Therefore, methyl cellulose could be recommended as the best adhesives and TCP may be recommendable as a phosphorus source for seed coating.