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http://dx.doi.org/10.5536/KJPS.2014.41.1.69

Laying Performance of Korean Native Breeder Ducks for Producing Korean Native Commercial Ducks  

Hong, Eui-Chul (Poultry Science Division, National Institute of Animal Science, RDA)
Choo, Hyo-Jun (Poultry Science Division, National Institute of Animal Science, RDA)
Kim, Sang-Ho (Poultry Science Division, National Institute of Animal Science, RDA)
Kim, Chong-Dae (Poultry Science Division, National Institute of Animal Science, RDA)
Kim, Hak-Kyu (Poultry Science Division, National Institute of Animal Science, RDA)
Choi, Hee-Cheol (Poultry Science Division, National Institute of Animal Science, RDA)
Heo, Kang-Nyeong (Poultry Science Division, National Institute of Animal Science, RDA)
Publication Information
Korean Journal of Poultry Science / v.41, no.1, 2014 , pp. 69-75 More about this Journal
Abstract
This study was carried out to investigate the performance of laying period of A and B strains of Korean native ducks (KND). One hundred sixty eight ducks were used in this work and divided into A and B strains (6 replications/strain, 14 birds/replication). Ducks were fed with laying ducks' feedstuff (CP 15%, ME 2,900 kcal/kg) for the age of 20~80 wk old. There was no significant difference on body weight, feed intake and egg weight between A and B strains. Weekly body wt of KNDs was the lowest at the age of 40~48 wk old, and that of those was high at the age of 24~32 wk and 64~80 wk old (P<0.05). Weekly feed intake significantly decreased at the age of 36~48 wk and 68~72 wk old (P<0.05), but there was no significant difference at the age of 52~56 wk old. Weekly egg wt was the lowest at the age of 32~40 wk old. Egg production ratio of B strain was higher compared to that of A strain at the age of 24~28 wk, 60~64 wk and 20~80 wk old. Weekly egg production ratio was the highest at the age of 28~32 wk old, and was high maintained until the age of 48 wk old. However, weekly egg production ratio decreased from the age of 52 wk old to the age of 68 wk old. Number of egg of B strain (267.5) was higher than that of A strain (235.6) at the age of 20~80 wk old. There was no significant difference on feed conversion ratio between A and B strain at the age of 28~36 wk old, but feed conversion ratio of A strain was higher than that of B strain at the other weeks (P<0.05). These results provided the basic data on the record of laying period of Korean native ducks.
Keywords
Korean native ducks; laying period; body wt; feed intake; egg wt; egg production ratio; number of egg; feed conversion ratio;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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