- Volume 23 Issue 11
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Effects of Chito-oligosaccharide Supplementation on Egg Production, Nutrient Digestibility, Egg Quality and Blood Profiles in Laying Hens
- Meng, Q.W. (Department of Animal Resource and Science, Dankook University) ;
- Yan, L. (Department of Animal Resource and Science, Dankook University) ;
- Ao, X. (Department of Animal Resource and Science, Dankook University) ;
- Jang, H.D. (Department of Animal Resource and Science, Dankook University) ;
- Cho, J.H. (Department of Animal Resource and Science, Dankook University) ;
- Kim, I.H. (Department of Animal Resource and Science, Dankook University)
- Received : 2010.01.20
- Accepted : 2010.03.24
- Published : 2010.11.01
This study was conducted to evaluate the effects of dietary supplementation with chito-oligosccharide (COS) on egg production, nutrient digestibility, egg quality and blood profiles in laying hens. A total of 240 Hy-line Brown laying hens were randomly allocated into one of the following 5 dietary treatments: i) CON, basal diet; ii) ANT, basal diet+44 mg/kg avilamycin; iii) COS0.2, basal diet+200 mg/kg COS; iv) COS0.4, basal diet+400 mg/kg COS; v) ANTCOS, basal diet+200 mg/kg COS+22 mg/kg avilamycin. The experiment lasted for 6 wk. No change in egg weight (p>0.05) was observed during the trial period. Egg production in ANTCOS treatment was improved (p<0.05) when compared to CON during weeks 4-6. The birds in the COS0.2, COS0.4 and ANTCOS groups had higher (p<0.05) Haugh unit than those fed CON and ANT diets at the end of the
Laying Hen;Chito-oligosccharide;Egg Production;Egg Quality
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