頁籤選單縮合
題 名 | 蘭嶼豬GPI-PGD純合品系半同胞配種後之產仔數=Litter Size of the Homozygotic GPI-PGD Line in Lanyu Pigs with Half-sib Mating |
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作 者 | 陳文誠; 李啟忠; 曾晉郎; 張秀鑾; 吳明哲; | 書刊名 | 畜產研究 |
卷 期 | 32:4 1999.12[民88.12] |
頁 次 | 頁365-372 |
分類號 | 437.653 |
關鍵詞 | 迷你豬; 產仔數; 近親選拔; Miniature pig; Litter size; Inbreeding selection; |
語 文 | 中文(Chinese) |
中文摘要 | 南嶼豬種GPI-PGD基因型純合品系於1992年建立,GPI和PGD分別為BB型和AA型。 第零代的10公50母,以1公5母併欄配種,初產活仔數和第二產活仔數分別為4.22±1.02頭( 45 胎 ) 和 5.23+1.97 頭 (35 胎 )。依據種母豬初產和第二產產仔數平均之高低,挑選產 仔數高的種母豬之初產所生仔豬, 而 5 月齡體重低於 20kg 的公仔豬 10 頭 (每胎僅一頭 ) 和母仔豬 50 頭,做為第一代種豬。冉進行 1 公 5 母的半同胞併欄配種,第一代種母豬 的分挽年齡為 1.0、1.5 和 2.0 歲時,其每胎活仔數分別為 1.82 ± 1.47(36 胎 )、3.02 ± 2.56(30 胎 ) 和 5.02 ± 2.26 頭 (34 胎 )。 第二代選留種豬之條件同於第一代,但 選留兩歲齡母豬所生的仔豬群, 計有公仔豬 10 頭 (每胎僅一頭 ) 和母仔豬 50 頭為第二 代種豬。第二代種豬仍採 1 公 5 母的半同胞併欄配種,第二代種母豬的分挽年齡為 1.0、 1.5 和 2.0 歲時, 其每胎活仔數分別為 3.78 ± 1.13(37 胎 )、 4.13 ± 1.26(39 胎 ) 和 4.34 ± 2.01(35 胎 )。結果顯示蘭嶼豬種 GPI-PGD 基因型純合品系採半同胞配種和兩 個世代選拔後,14.1% 之高近親係數並未影響到母豬的產仔數。 |
英文摘要 | The homozygotic GPI-PGD line of Lanyu pigs was established in 1992 with genotypes of GPI-BB and PGD-AA. Ten boars and 50 gilts as the founder and one boar and five gilts were raised in a mating pen. Numbers of piglet born alive per litter at first (N=45) and second (N=35) litters of founder sows were 4.22 ± 1.02 and 5.23 ± 1.97 head, respectively. Based upon the rank on the mean size of two litters of founder sows, then under 20 kg of body weight at 5 months of age of 10 male (only one piglet from each litter) and 50 female piglets in the first litters of founder sows were selected as stock of Generation one (Gl). Half-sib mating was used and one boar and five gilts were raised in a mating pen. Numbers of piglet born alive per litter produced by Gl sows at 1.0, 1.5 and 2.0 years of age were 1.82 ± 1.47 (N=36), 3.02 ± 2.56 (N=30) and 5.02 ± 2.26 (N=34) head, respectively. Stock of Generation two (G2) with 10 boars (only one piglet from each litter) and 50 gilts were selected from the population in which piglets were produced by two years old G1 sows. G2 stocks were raised with one boar and five gilts per pen in half-sib mating. Number of piglets born alive per litter produced by G2 sows at 1.0, 1.5 and 2.0 years of age were 3.78 ± 1.13 (N=37), 4.13 ± 1.26 (N=39) and 4.34 ± 2.01 (N=35) head, respectively. In conclusion, the number of piglet born alive per litter was not affected by the half-sib mating with 14.1% inbreeding coefficient after two generations of selection in the homozygotic GPI-PGD line of Lanyu pigs. |
本系統中英文摘要資訊取自各篇刊載內容。