The objective of this study was to evaluate the characteristics of duck litter in ducks fed diets containing Houttuynia cordata powder. One-day-old ducklings (Pekin) were randomly divided into two groups and fed a control or 1% H. cordata powder-containing diet for an experimental period of three weeks. The results showed that pH for 1–2 weeks and total nitrogen for 1–3 weeks in duck litter were affected by dietary treatments with 1% H. cordata powder (P < 0.05). For Volatile Fatty Acids (VFAs), there was no significant difference (P > 0.05) between ducks fed 1% H. cordata and control diets, as shown in the results for acetic acid and propionic acid in duck litter over three weeks; but, this was not the case for propionic acid at 3 weeks. The inclusion of 1% H. cordata powder in the diet had a the positive effect on increasing the total nitrogen and decreasing pH and VFAs in duck litter.

Abstract
 1. 서 론
 2. 연구 방법
  2.1. 공시동물와 실험설계
  2.2. 오리깔짚 샘플과 분석
  2.3. 통계분석
 3. 결과 및 고찰
  3.1. pH와 총 질소(TN) 함량 변화
  3.2. VFA함량 변화
 4. 결 론
 REFERENCES

• 최인학(중부대학교 애완동물자원학과) | In Hag Choi (Department of Companion Animal & Animal Resources Science, Joongbu University) Corresponding author