Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Effects of Dietary Amino Acid Additives to Weaned Piglet Diets on pH and Volatile Fatty Acids of Pig Slurry

이유자돈 사료에 아미노산 첨가제가 돈분 슬러리의 pH와 휘발성지방산에 미치는 영향

  • 김창만 (영남대학교 생명과학과)
  • Received : 2023.01.30
  • Accepted : 2023.03.06
  • Published : 2023.03.31
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Abstract

This study aimed to investigate the effect of amino acid additives to weaned piglet diets on the pH and volatile fatty acids of pig slurries. A total of 135 weaned 22 -day-old piglets (Yorkshire x Landrace x Duroc) were used in this 56-d study. The three dietary treatments were as follows: (1) Control as a basal diet, (2) 1% amino acid additive and (3) 2% amino acid additive. Both pH and acetic acid values at 71 and 78 days were significantly different in all treatment groups (p<0.05). In addition, significant differences in propionic acid values were observed among treatment groups at 64 and 78 days (p<0.05). However, pH, acetic acid, and propionic acid values did not differ between 1% and 2% amino acid treatment groups. In conclusion, adding 1% and 2% amino acid to weaned piglet diets reduced the pH, acetic acid and propionic acid contents of pig slurries by acting as a probiotic. This may help formulate increase management strategies for improving the pig housing environment.

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Acknowledgement

본 연구는 2020년도 중소벤처기업부의 기술개발사업 지원에 의한 연구임을 밝힙니다. (과제번호: S2891410)

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