查詢結果分析
來源資料
頁籤選單縮合
題 名 | 臺灣土雞之近親育種(4)--近親品系二元雜交後裔之生長及繁殖性能之田間評估=Inbred Lines in Taiwan Native Chicken (Ⅳ)--The Field Test of Two-Way Crosses on Growth and Egg Production Traits |
---|---|
作 者 | 戴謙; 鍾秀枝; 張秀鑾; 黃祥吉; | 書刊名 | 中國畜牧學會會誌 |
卷 期 | 26:2 1997.06[民86.06] |
頁 次 | 頁187-196 |
分類號 | 437.713 |
關鍵詞 | 臺灣土雞; 近親系雜交; 田間測試; Taiwan native chicken; Inbred crosses; Field test; |
語 文 | 中文(Chinese) |
中文摘要 | 利用畜產試驗所近親土雞L7、L9、L11及L12等品系之二元雜交雞,一個公系(S: L12 ♂× L9 ♀ ) 之公雞及二個母系 (A:L7 ♂× L9 ♀; B:L7 ♂× L11 ♀ ) 之母雞進 行田間測試。於 16 週齡時 S 系雞隻平均體重為 1815 公克,A 系為 1319 公克而 B 系為 1226 公克,至 16 週齡之累計死亡率三系分別為 10.0,16.2 及 15.4 %。A 系與 B 系雞 隻之平均初產日齡及蛋重均未有顯著差異,性成熟體重 A 系顯著比 B 系重。 40 週齡存活 雞之平均產蛋數 A 及 B 系相近分別為 70.7 及 72.2, 惟 54 週齡存活雞之平均產蛋數則 B 系顯著比 A 系佳 (110.2 vs. 117.8)。S × A 之平均受精率及孵化率分別為 90.0 %及 82.7 %;而 S × B 則分別為 86.1 及 82.2 %。 |
英文摘要 | In the field test of the two-way cross of inbred lines L7, L9, L11 and L12, cockerels from one sire line (S:L12 ♂× L9 ♀ ) and pullets from two dam lines (A:L7 ♂× L9 ♀; B: L7 ♂× L11 ♀ ) were used. The body weights at 16 weeks of age were 1815, 1319 and 1226 grams for sire line, S, and two dam lines, A and B, respectively. Also, the corresponding accumulative mortality from birth to 16 weeks of age were 10.0%, 16.2% and 12.3%, respectively. There was no significant difference in average age at first egg or egg weight between two dam lines, A and B. However, the body weight at age of first egg in dam line A was significantly heavier than that of line B. Although the average egg number up to 40 weeks of age were similar in two dam lines (70.7 and 72.2 for lines A and B, respectively), dam line B produced more eggs than line A did when the comparison was made up to 54 weeks of age (110.2 vs. 117.8 for line A vs. B). The average fertility and hatchability between sire line S and dam line A were 90.0% and 82.7%, respectively. and those of crosses between S and B were 86.1% and 82.2%, respectively. |
本系統中英文摘要資訊取自各篇刊載內容。