Abstract
This study was carried out to evaluate performance and uniformity of White Korean native ducks collected from two areas in Korea. White ducklings were selected from all ducklings that were hatched from hatchery eggs of Korean native ducks. A total of two hundred forty white ducklings (1-d-old) were used in this work and were divided into 4 groups (4 replicates/group, 15 birds/replicate) with $2{\times}2$ factors (2 groups, J, H; genders, male and female). Weekly body weight of H groups was higher than that of J groups (P<0.05). Also, weekly body weight of male ducks was higher compared to that of female at 6~8 wk old (P<0.05). Uniformity of J groups was higher than that of H groups at the age of 1 wks old (P<0.05), and that of female duck was higher than that of male at the age of 6 wks old (P<0.05). Body weight gain of H group was higher than that of J group (P<0.05), and that of male duck was higher compared to that of female at 6~7 wks old (P<0.05). Feed intake of H group was higher compared to that of J group (P<0.05), but there was no significant difference between male and female on feed intake. On feed conversion ratio, J group was higher than H group at 4~5 wks, 7~8 wks and 0~8 wks old (P<0.05), and feed conversion ratio of male duck was higher than that of female at 1~2 wks, 5~6 wks and 6~7 wks old. Finally, these results was tended to show that performance of H groups was higher than that of J groups. Further researches need to carry out to commercial White Korean native ducks on performance and uniformity as well as meat quality and genetic characteristic.
본 연구는 다른 지역에서 수집된 백색 토종오리의 생산성과 균일도를 조사하기 위하여 수행하였다. 공시동물은 토종오리 종란에서 발생된 병아리 중 백색을 가진 개체를 선별하여 이용하였다. 시험설계는 오리들을 지역에 따른 두 그룹(J, H)으로 나누고, 암수를 분리하여 $2{\times}2$의 복합요인으로 4처리구, 처리구당 4반복, 반복당 15수씩 총 240수를 완전임의 배치하여 생산성과 균일도를 조사하였다. 주령별 체중은 1주령을 제외하고 H군의 체중이 높게 나타났다(P<0.05). 암수 간 체중은 6주령부터 수컷의 체중이 암컷에 비해 높게 나타났다(P<0.05). 균일도는 J군이 1주령에 높게 나타났으며, 암수 비교에서는 6주령에 암컷의 균일도가 높게 나타났다(P<0.05). 증체량은 H군이 J군에 비해 높게 나타났으며(P<0.05), 6~7주령에는 수컷의 증체량이 암컷에 비해 높게 나타났다(P<0.05). H군의 사료섭취량은 J군에 비해 높게 나타났다(P<0.05). 그러나 암수 간 비교에서는 사료섭취량의 차이를 보이지 않았다. 사료요구율의 경우, 4~5주령, 7~8주령 그리고 0~8주령에 J군이 높게 나타났으며(P<0.05), 1~2주령, 5~6주령, 6~7주령 및 0~8주령에 수컷의 사료요구율이 암컷보다 높게 나타났다(P<0.05). 결론적으로, 백색 토종오리의 성적은 J군에 비해 H군이 우수한 경향이었다. 백색 토종오리의 실용화를 위해서는 균일도와 생산성뿐만 아니라, 육질이나 유전적 특성에 대하여 추가적인 연구가 지속되어야 할 것이다.
