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http://dx.doi.org/10.5536/KJPS.2013.40.2.121

Evaluation of Korean Native Ducks on Production Efficiency Factor, Carcass Yield, Partial Meat Ratio and Meat Quality with Weeks  

Heo, Kang-Nyeong (Poultry Science Division, National Institute of Animal Science, RDA)
Kim, Hak-Kyu (Poultry Science Division, National Institute of Animal Science, RDA)
Kim, Chong-Dae (Poultry Science Division, National Institute of Animal Science, RDA)
Kim, Sang-Ho (Poultry Science Division, National Institute of Animal Science, RDA)
Lee, Myeong-Ji (Poultry Science Division, National Institute of Animal Science, RDA)
Choo, Hyo-Jun (Poultry Science Division, National Institute of Animal Science, RDA)
Son, Bo-Ram (Poultry Science Division, National Institute of Animal Science, RDA)
Choi, Hee-Cheol (Poultry Science Division, National Institute of Animal Science, RDA)
Lee, Sang-Bae (Sanhwa Breeding, Co., LTD.)
Hong, Eui-Chul (Poultry Science Division, National Institute of Animal Science, RDA)
Publication Information
Korean Journal of Poultry Science / v.40, no.2, 2013 , pp. 121-127 More about this Journal
Abstract
This work was carried to evaluate production efficiency factor, carcass yield and meat quality with weeks of Large-type Korean native ducks. Korean native ducks (n = 90) from National Institute of Animal Science (RDA, Korea) were used in this work. Ninety ducks were divided into 6 groups (15 birds/group) and were fed with meat-type duck diets for 8 wk old. When ducks grew at specific wk (6, 7 and 8 weeks), 2 ducks per group were slaughtered at 6, 7 and 8 wk old. Production efficiency factor, carcass yield, partial meat and meat quality were researched in this work. There was no significant difference on livability with weeks, but body weight at 7 and 8 wk old was higher than that at 6 wk old (P<0.05). Feed conversion ratio at 6, 7 and 8 wk old were 2.25, 2.69 and 3.21, respectively, so there was significant difference with weeks (P<0.05). Production efficiency factor at 6, 7 and 8 wk old were 256.6, 199.8 and 153.0, respectively, so there was significant difference with weeks (P<0.05). Carcass yield at 8 wk old was higher than that at 6 and 7 wk old as 73.5% (P<0.05). Lightness at 6, 7 and 8 wk were 41.8, 39.0 and 38.1, respectively, and that at 6 wk old was the higher than other weeks (P<0.05). There was no significant difference on redness at 6, 7, and 8 wk old (P>0.05) and yellowness at 8 wk old was higher compared to other weeks (P<0.05). Cooking loss was the highest at 6 wk old as 31.6%, but water holding capacity was the highest at 8 wk old (P<0.05). There was no significant difference on shear force among weeks. pH at 6 wk old was the lower than that of other weeks as 5.84. Moisture content significantly decreased with weeks (P<0.05) and fat content at 8 wk was the highest as 1.88% (P<0.05). Protein content significantly increased with weeks until 20.9% at the age of 8 wk (P<0.05). Ash content at 7 and 8 wk old was the higher than that at 6 wk old (P<0.05). There was no significant difference on juiciness, tenderness, and flavor with weeks. Finally, these results may provide that shipping time at 7 wk old preferred to that at 6 and 7 wk old, but further research was needed because of deficiency of data.
Keywords
Korean native ducks; large-type; production efficiency factor; carcass yield; meat quality;
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Times Cited By KSCI : 13  (Citation Analysis)
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