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http://dx.doi.org/10.5536/KJPS.2019.46.4.215

Effect of Different Stocking Densities in Plastic Wired-Floor House on Performance and Uniformity of Korean Native Commercial Ducks  

Hong, Euichul (Poultry Research Institute, National Institute of Animal Science)
Kang, Bo-Seok (Poultry Research Institute, National Institute of Animal Science)
Kang, Hwan-Ku (Poultry Research Institute, National Institute of Animal Science)
Jeon, Jin-Joo (Poultry Research Institute, National Institute of Animal Science)
Kim, Hyun-Soo (Poultry Research Institute, National Institute of Animal Science)
Son, Jiseon (Poultry Research Institute, National Institute of Animal Science)
Kim, Chan-Ho (Poultry Research Institute, National Institute of Animal Science)
Publication Information
Korean Journal of Poultry Science / v.46, no.4, 2019 , pp. 215-221 More about this Journal
Abstract
This study investigated the effects of various stocking densities on the growth performance of Korean native ducks. Twelve hundred day-old ducklings were reared for 50 days in a duck house (windowless, plastic wire-floor pen). Two weeks later, 852 of these ducks (350±30 g) were selected for at least 80% uniformity per stocking treatment (six treatments, four replications/treatment, depending on a stocking density of 4~9 birds m-2). Experimental diets were corn-soybean-based and broiler ducks were grouped based on age [0~21 days of age (CP 21%, ME 2,900 kcal/kg) and 21~50 days of age (CP 17%, ME 3,100 kcal/kg)]. Body weight (BW) did not significantly differ among different aged treatment groups (P>0.05); however, uniformity decreased with higher stocking densities (P<0.05). Feed intake and feed conversion ratio of ducks aged 42~50 days significantly decreased in the T4-6 treatments compared with the T1-3 treatments (P<0.05). In all experimental periods, BW gain was not significantly different among treatments, but feed intake decreased significantly as the stocking density increased (P<0.05), and feed conversion ratio was significantly different among six treatments with stocking density (P<0.05). In conclusion, we found that the stocking density of Korean native ducks in a plastic wire-floor pen was approximately 7 birds m-2 in consideration of productivity and uniformity.
Keywords
Korean native duck; stocking density; performance; uniformity;
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