畜試土雞父系與母系生長性能和腳脛長度之關係

鍾秀枝 黃祥吉 張秀鑾

行政院農業委員會畜產試驗所

本試驗之目的在探討畜試土雞台畜公十一號(父系)與母十二號(母系)生長性能與腳脛長度之關係，期增加其體型之一致性，俾便生產畜試土雞台畜肉十三號，提供家禽產業之大規模飼養管理。試驗雞隻源自畜產試驗所1997年經過命名的畜試土雞台畜公十一號與母十二號雞隻共585隻，進行8、12、14、與16週齡之生長性能及腳脛長度之測定，並探討兩者之關係。結果發現：台畜公十一號8、12、14與16週齡平均體重(平均值±標準機差)分別為650±6公克、1158±9公克、1376±10公克與1611±11公克；達16週齡之平均腳脛長度±標準機差為11.2±0.03公分，且體重與腳脛長度之皮爾森相關係數估值為0.49。台畜母十二號8、12、14與16週齡平均體重(平均值±標準機差)分別為581±5公克、932±8公克、1079±10公克與1193±11公克；達16週齡之平均腳脛長度±標準機差分別為9.3±0.03公分，且體重與腳脛長度皮爾森相關係數估值為0.39。此外，體重與腳脛長度具顯著的品系間差異 (P<0.05)。

關鍵語：畜試土雞、生長性能、腳脛長度。

THE CORRELATION BETWEEN GROWTH PERFORMANCE AND SHANK
LENGTH IN SIRE AND DAM LINES OF TLRI NATIVE CHICKEN

H. C. Chung, H. C. Huang and H. L. Chang

Taiwan Livestock Research Institute, Council of Agriculture

The objective of this investigation was to estimate the correlation between growth performance and shank length in sire (Taishu No.11) and dam lines (Taishu No.12) of TLRI native chicken and thus to increase the carcass uniformity for large-scale meat production purpose. There were 585 birds of Taishu No. 11 and No. 12 lines used in the study, which were officially nominated by provincial government in 1997. Body weights and shank lengths at 8, 12, 14 and 16 weeks of age were measured and the relationship between traits was also evaluated. Body weights (mean±SE) at 8, 12,.14 and 16 weeks of age in sire line were 650±6 gm, 1158±9 gm, 1376±10 gm and 1611±11 gm, respectively. Shank length (mean±SE) at 16 weeks of age in sire line was11.2±0.04 cm with the corresponding estimate of Pearson correlation coefficient between body weight and shank length being 0.49. Also, body weights at 8, 12,.14 and 16 weeks of age in dam line were 581±5 gm, 932±8 gm, 1079±10 gm and 1193±11 gm, respectively. Again, shank length (mean±SE) at 16 weeks of age in dam line was 9.3±0.03 cm with the corresponding estimate of Pearson correlation coefficient between body weight and shank length being 0.39. In addition, significant differences between lines were observed in both traits considered in the study.

Key Words: TLRI native chicken, Growth performance, Shank length.