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Effects of Hybrid and Inoculant on Rumen Digestibility and Fermentation Indices of Corn Silage KCI 등재

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농업생명과학연구 (Journal of Agriculture & Life Science)
경상대학교 농업생명과학연구원 (Institute of Agriculture & Life Science, Gyeongsang National University)
초록

This study was aimed to determine the effects of hybrid and inoculant on in vitro rumen digestibility and rumen fermentation indices of corn silage. Two corn hybrids(Kwangpyeongok (KW) vs. Pioneer 1543(PI)) were ensiled for 100 days with two inoculants(L. plantarum(LP) vs. L. buchneri(LB)) applied at 1.2 × 105 cfu/g of fresh forage. Silages were incubated in rumen fluid medium at 39℃ for 72 hours. Both of KW and PI had no difference(p>0.05) on in vitro digestibility of dry matter(IVDMD) and neutral detergent fiber(IVNDFD), while application of LB produced higher(p<0.05) IVDMD and IVNDFD than LP. Hybrid and inoculant applications did not affect(p>0.05) total gas volume, ammonia-N, total VFA, and acetate concentrations in the rumen. Applied LB was higher(p<0.05) propionate concentration than LP, while hybrids had no effect(p>0.05). Furthermore, the interaction effect(p<0.05) was occurred in propionate concentration. Butyrate concentration did not affected(p>0.05) by hybrid and inoculant applications, but there was an interaction effect between hybrid and inoculant(p<0.05). Applications of hybrid and inoculant had effects(p<0.05) on iso-butyrate and valerate, without any interaction effects(p>0.05). This study concluded that application of KW and PI has no effects on in vitro rumen digestibility and rumen fermentation indices of corn silage, while application of LB increase the rumen digestibility in both of corn hybrids.

목차
ABSTRACT
 Introduction
 Materials and Methods
  1. Corn silage and sampling
  2. Chemical compositions
  3. In vitro ruminal incubation
  4. Statistical analysis
 Results and Discussion
 References
저자
  • Seong Shin Lee(Division of Applied Life Science(BK21Plus, Insti. of Agri. & Life Sci.), Gyeongsang National University)
  • Dimas H. V. Paradhipta(Division of Applied Life Science(BK21Plus, Insti. of Agri. & Life Sci.), Gyeongsang National University)
  • Young Ho Joo(Division of Applied Life Science(BK21Plus, Insti. of Agri. & Life Sci.), Gyeongsang National University)
  • Hyuk Jun Lee(Division of Applied Life Science(BK21Plus, Insti. of Agri. & Life Sci.), Gyeongsang National University)
  • Dong Hyeon Kim(Department of Animal Sciences, IFAS, University of Florida/Dairy Science Division, National Institute of Animal Science, RDA)
  • Sang Bum Kim(Dairy Science Division, National Institute of Animal Science, RDA)
  • Sam Churl Kim(Division of Applied Life Science(BK21Plus, Insti. of Agri. & Life Sci.), Gyeongsang National University/ Department of Animal Sciences, IFAS, University of Florida) Corresponding author