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題名 | 臺灣土雞在兩世代雙向選拔血清γ球蛋白(%)的反應=Response to Two Generations of Divergent Selection for Serum γ-Globulin Percentage in Taiwan Country Chicken |
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作者姓名(中文) | 趙清賢; 李淵百; | 書刊名 | 中國畜牧學會會誌 |
卷期 | 29:3 2000.09[民89.09] |
頁次 | 頁287-298 |
分類號 | 437.713 |
關鍵詞 | 雙向選拔; γ球蛋白; 生殖性狀; 免疫性狀; 臺灣土雞; Selection; γ-globulin; Reproductive trait; Immunological trait; Taiwan country chicken; |
語文 | 中文(Chinese) |
中文摘要 | 本研究為比較經兩代高低雙向選拔34週齡血清γ球蛋白(%)的兩土雞 品系(H與L品系),在生殖與免疫性狀的差異,並估計各性狀的遺傳參數。試驗 結果顯示H品系在γ球蛋白(%)、對新城雞病疫苗與綿羊紅血球的免疫反應顯著 高於L品系,而受精率與35週齡的蛋重則顯著較低。產蛋率與受精率的遺傳率 低,其餘生殖性狀則具有中度以上的遺傳率。血清γ球蛋白(%)具有中度以上的 遺傳率,以父方變方成分與親子迴歸所估得的遺傳率介於0.218~0.529間,而實 測遺傳率則為0.293。其餘免疫性狀的遺傳率低。生殖與免疫性狀間的表現型相 關一般皆低。 |
英文摘要 | This study was conducted to compare the reproductive and immunological traits of two Taiwan Country chicken lines (H and L line) that had been divergently selected for two generations for high and low serum γ-globulin percentage at 34 wk of age. The genetic parameters of these traits were also estimated. The results indicated that H line had significantly higher serum γ-globulin percentage and antibody responses to both Newcastle disease vaccine and sheep red blood cells than those of L line, but had sighificantly lower fertility and egg weight at 35 wk of age. The estimated heritabilities of egg production and fertility were low, but the heritabilities of other reproductive traits were moderate to high.The heritabilities of serum γ-globulin percentage estimated from sire variance component and parent-offspring regression were in the range of 0.218 to 0.529. Estimate of realized heritability for serum γ-globulin was 0.330. Estimates of heritabilities for other immunological traits were very low. Little, if any, phenotypic correlations were found among reproductive and immunological traits. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。