Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Effect of fermented earthworm cast feed on the production of high-quality eggs and odor reduction

지렁이 분변토 발효사료가 고품질 계란생산 및 악취 저감에 미치는 영향

  • Shin, Jong-Suh (College of Animal Life Science, Kangwon National University) ;
  • Yang, Boo-Keun (College of Animal Life Science, Kangwon National University) ;
  • Park, Byung-Sung (College of Animal Life Science, Kangwon National University)
  • 신종서 (강원대학교 동물생명과학대학) ;
  • 양부근 (강원대학교 동물생명과학대학) ;
  • 박병성 (강원대학교 동물생명과학대학)
  • Received : 2017.08.10
  • Accepted : 2017.09.06
  • Published : 2017.09.30
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Abstract

The aim of this study was to investigate the effects of fermented earthworm cast feed prepared with three complexed probiotics containing Bacillus subtilis separated from the earthworm casts, on egg production, egg quality and odor removal from poultry house. A total of 240 laying hens were divided into 4 treatments and completely randomized. Experimental groups were divided into control, 0.3 to 0.5% (fermented earthworm cast feed FECF3, FECF5) and 0.2% commercial probiotics (CP). The egg production rate was significantly higher in the FECF groups compared to the control group fed the normal feed, but there was no difference in the CP group. Haugh units, egg shell thickness, breaking strength, egg yolk index and albumen height were increased in FECF groups compared to control but not in CP group. The n-3 content of eggs was higher in the FECF groups than in the control group, while the n-6/n-3 ratio was lower and there was no difference from the CP group. Ammonia production was lower in the CP and FECF groups compared to the control group after 5 days storage at room temperature to poultry feces.

본 연구의 목표는 분변토로부터 분리한 Bacillus subtilis외 2종의 복합 생균제를 이용하여 제조한 발효사료가 산란계 생산성, 계란품질 및 양계장 악취저감에 미치는 효과를 조사하는 것이었다. 산란계 240마리를 4개의 처리구로 구분하여 완전임의 배치하였다. 실험 처리구는 대조구, 분변토발효사료 0.3, 0.5% (FECF3, FECF5), 일반생균제 0.2% (CP)로 구분하였다. 산란율은 일반사료를 섭취한 대조구와 비교할 때 FECF 처리구는 유의하게 높았으나 CP 처리구는 차이가 없었다. 호우유닛, 난각두께, 파란강도, 난황색 지수 및 농후난백 높이는 대조구와 비교할 때 FECF 처리구가 증가하였으나 CP 처리구와 차이는 없었다. 계란의 n-3 함량은 대조구와 비교할 때 FECF 처리구가 높았으나 n-6/n-3 비율은 낮았으며 CP 처리구와의 차이는 없었다. 계분을 실온에서 5일간 방치 후 암모니아 발생량은 대조구와 비교할 때 CP와 FECF 처리구가 낮았다.

Keywords

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