Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
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Effect of Agariemycetes Supplementation on Egg Quality and Fecal Noxious Gas Concentration in Laying Hens

사료내 Agariemycetes 첨가 급여가 산란계의 계란 품질 및 분내 유해 가스 농도에 미치는 영향

  • 정지홍 (단국대학교 동물자원학과) ;
  • 김효진 (단국대학교 동물자원학과) ;
  • 왕건평 (단국대학교 동물자원학과) ;
  • 김채현 ((주)고려비엔피 기술연구소) ;
  • 정청환 ((주)고려비엔피 기술연구소) ;
  • 김인호 (단국대학교 동물자원학과)
  • Received : 2010.04.22
  • Accepted : 2010.05.31
  • Published : 2010.06.30
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Abstract

This study was conducted to evaluate effects of dietary Agariemycetes on egg quality and fecal noxious gas concentration in laying hens. A total of two hundred forty laying hens were randomly allocated to four treatments with five replicates of twelve chicks per pen. The experiment lasted 42 days with a 7-day adjustment period. Dietary treatments were as follows: 1) CON (basal diet), 2) A1 (basal diet + Agariemycetes 0.1%), 3) A3 (basal diet + Agariemycetes 0.3%) and 4) A5 (basal diet + Agariemycetes 0.5%). There was no significant difference in egg production and egg weight between CON and Agariemycetes treatments. During the second week of the experiment, eggshell breaking strength was higher in A3 and A5 treatments than that in CON treatment (P<0.05). Besides, eggshell breaking strength in P5 treatment was higher when compared with that in CON treatment (P<0.05) in the sixth week. During the second week of the experiment, eggshell thickness was higher in Agariemycetes treatments than CON treatment (P<0.05). Also, A5 treatment was higher than other treatments in the fourth week of the experiment (P<0.05). At the end of the second week, yolk color unit in A5 treatment was lower compared with CON treatment (P<0.05). During the fourth week of the experiment, CON treatment was higher than A3 treatment (P<0.05). During the second week of the experiment, Haugh unit in A3 treatment was greater than that in CON treatment (P<0.05). At the end of six weeks, Haugh unit in CON treatment was lower than other treatments (P<0.05). Fecal ammonia and hydrogen sulfide were increased in Agariemycetes treatments when compared with CON treatment (P<0.05). Compared with CON and A5 treatments, fecal mercaptans was higher than in other treatments in first of the experiment (P<0.05). In conclusion, this study indicated that the addition of Agariemycetes in the diet improved the egg quality and decreased the feacal noxious gas concentration in laying hens.

본 연구는 산란계에 Agariemycetes 첨가 급여에 따른 계란 품질 및 분내 유해 가스 농도에 미치는 영향을 알아보기 위하여 시험을 실시하였다. 사양 시험은 55주령 ISA Brown 240수를 공시하였으며, 사료에 대한 7일간의 적응 기간 후 6주간 사양 시험을 실시하였다. 시험 설계는 1) CON(basal diet), 2) A1(basal diet + Agariemycetes 0.1%), 3) A3(basal diet + Agariemycetes 0.3%) 및 4) A5(basal diet + Agariemycetes 0.5%)로 4개 처리를 하여 처리당 5반복, 반복당 12수씩 완전 임의 배치하였다. 산란율과 난중은 시험 기간 동안 처리구간 유의적인 차이를 나타나지 않았다. 난각 강도에 있어서는 2주차에 A3와 A5 처리구가 CON구와 비교하여 유의적으로 높게 나타났고(P<0.05), 6주차에 A5 처리구가 CON구보다 유의적으로 높게 나타났다(P<0.05). 난각 두께에 있어서는 2주차에는 생균제 첨가 처리구가 CON구와 비교하여 유의적으로 높게 나타났으며(P<0.05), 4주차에는 A5 처리구가 다른 처리구들과 비교하여 유의적으로 높게 나타났다(P<0.05). 난황색은 2주차에 A5처리구가 CON 구와 비교하여 유의적으로 높았으며(P<0.05), 4주차에는 A3 처리구가 CON 구와 비교하여 유의적으로 낮았다(P<0.05). Haugh unit에 있어서는 2주차에 A3 처리구가 CON 구와 비교하여 유의적으로 높았으며(P<0.05), 6주차에는 모든 Agariemycetes 처리구가 CON구에 비해 유의적으로 높게 나타났다(P<0.05). Ammonia 함량에 있어서는 Agariemycetes 첨가구가 다른 처리구들과 비교하여 유의적으로 낮게 나타났다(P<0.05). $H_2S$ 함량은 Agariemycetes 첨가구가 CON구과 비교하여 유의적으로 낮게 나타났다(P<0.05). Mercaptans 함량에서는 CON구와 A5 처리구가 A3 처리구보다 유의적으로높게 나타났다(P<0.05).

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References

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