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http://dx.doi.org/10.7744/cnujas.2012.39.1.053

Laying performance of two pure-line Korean native ducks at different house types  

Kim, Hak-Kyu (Poultry Science Division, National Institute of Animal Science, RDA)
Hong, Eui-Chul (Poultry Science Division, National Institute of Animal Science, RDA)
Kang, Bo-Seok (Poultry Science Division, National Institute of Animal Science, RDA)
Kim, Chong-Dae (Poultry Science Division, National Institute of Animal Science, RDA)
Heo, Kang-Nyeong (Poultry Science Division, National Institute of Animal Science, RDA)
Choo, Hyo-Jun (Poultry Science Division, National Institute of Animal Science, RDA)
HwangBo, Jong (Poultry Science Division, National Institute of Animal Science, RDA)
Publication Information
Korean Journal of Agricultural Science / v.39, no.1, 2012 , pp. 53-60 More about this Journal
Abstract
This work was conducted to evaluate the laying performance of Korean Native Ducks (KND) Pure-Line (PL). A total of 400 female pullets were hatched from PL to keep in National Institute of Animal Science, Korea. Twenty weeks old PL female ducks were divided into 4 groups (5 replications/group, 20 head/replications). Four groups were compared in a $2{\times}2$ factorial arrangement with strain (White strains, WW; Celadon strains, CC) and house type (flat house, cage house). On first egg laying day, CC strain laid eggs earlier compared to WW strain (P<0.01), but there was no significant difference between flat and cage house. Egg weight (EW) and body weight (BW) at first egg laying day have no difference among strains and houses. BW of CC strain was higher than WW strain at the age of 30 week (P<0.01). Weekly feed intake (FI) have no difference between flat and cage house, but FI of WW strain was high compared to CC strain during 20~30 weeks. There was no significant difference on EW between CC and WW strains, but EW was low at flat house compared to cage house (P<0.05). Weekly egg productions of WW strain and flat house were lower than CC strain and cage house, respectively (P<0.01). Finally, These results can provide the information that needed to introducing new strains.
Keywords
Korean Native Duck; First egg laying day; Egg weight; Body weight; Egg production;
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