第三十二卷(2003)
畜試土雞台畜肉十三號生長性能與雞冠大小之關係
鍾秀枝 黃祥吉 林德育 張秀鑾
行政院農業委員會畜產試驗所
本試驗目的在探討畜試土雞台畜肉十三號生長性能與雞冠大小之關係，期增加其體型外觀之一致性，俾便提高產品價值。應用438隻畜試土雞台畜肉十三號，進行2、4、6、8、12、14與16週齡體重及12、14與16週齡之雞冠面積相關分析。結果顯示： 12、14與16週齡公和母雞平均體重(平均值±標準機差)分別為1232±9和960±9公克、1467±10和1135±11公克及1692±12和1288±13公克；而12、14與16週齡公和母雞平均雞冠面積(平均值±標準機差)分別為19.5±0.4和2.8±0.4㎝2、27.7±0.6 公分和5.1±0.6㎝2、36.5±0.7和8.9±0.8㎝2。體重與雞冠面積在各週齡皆具顯著性別差異(P<0.01)。同時，皮爾森相關係數估值顯示：公雞方面，以12週齡體重與其16週齡雞冠面積之表型相關為最大(r=0.44)，而母雞則以14週齡體重與同週齡雞冠面積之表型相關較高為0.51。
關鍵語：畜試土雞、生長、雞冠。
THE RELATIONSHIP BETWEEN GROWTH TRAIT AND COMB
SIZE IN TLRI NO. 13 NATIVE CHICKEN
H. C. Chung, H. C. Huang, D. Y. Lin and H. L. Chang
Livestock Research Institute, Council of Agriculture, Executive Yuan
The objective of this study was to estimate the correlation between growth trait and comb size in TLRI No. 13 native chicken and thus to increase the carcass uniformity and thus promote the value of products. A total of 438 birds were used in the study. Traits included body weights at 2, 4, 6, 8, 10, 12, 14 and 16 weeks of age and comb sizes at 12, 14 and 16 weeks of age. Body weights (mean±SE) at 12,.14 and 16 weeks of age in cocks and hens were 1232±9 and 960±9 gm; 467±10 and 1135±11 gm; 1692±12 and 1288±13 gm, respectively. The comb size at 12,.14 and 16 weeks of age in cock and hen were 19.5±0.4 and.2.8±0.4 cm2; 27.7±0.6 and 5.1±0.6 cm2; 36.5±0.7 and 8.9±0.8 cm2, respectively. Significant differences were observed in both body weight and comb size (P<0.05). The Pearson correlation coefficient estimates between body weight and comb size were 044 and 0.51 for cocks at 12 and 16 weeks age, and for hens at 14 weeks age.
Key Words: TLRI native chicken, Growth trait, Comb size.
  
|
|
|
