頁籤選單縮合
題 名 | 高繁殖力約克夏品系種豬之選育=Development of High Productivity Line in Yorkshire Sows |
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作 者 | 劉文弘; 陳修德; 黃英琮; 黃錦源; | 書刊名 | 臺糖畜產 |
卷 期 | 3:4 1998.03[民87.03] |
頁 次 | 頁19-29 |
分類號 | 437.653 |
關鍵詞 | 繁殖品系; 約克夏; 性能檢定; Reproductive line; Yorkshire; Performance test; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究的目的在於自現有約克夏母豬群中,發掘具有出生每窩仔豬數多、斷乳至 配種間距短與受胎率高等繁殖特性之母豬,加以選留成為具高繁殖力之母畜群,並就其後裔 予以選留,提供母畜群更新之用。高繁殖力品系約克夏母畜群,經過 7 年之選育,試驗結 果如下:(1)高繁殖力品系約克夏基礎母豬群之後裔,已進行至第 4 代 ,其後裔女豬, 在隻日增重、飼料效率、背脂厚度與體長等性能表現,均能維持原畜群相同之水準;(2) 高繁殖力約克夏品系各世代之女豬,初次配種日齡、斷乳至配種間距、每窩出生總仔數、繁 殖指數等性狀較對照組均有顯著之增加(p<0.05);(3)除第一世代外、第二至第四代母 豬各項繁殖性狀之表現,有隨世代之增加而改進之趨勢;(4)高繁殖力約克夏母畜群之建 立,經配合高繁殖力公豬群之配種,累積優良性狀之基因,可提升整個畜群之繁殖力。 |
英文摘要 | This study investigated the dam line breeding of high productivity of Yorkshire (HPY). All replacement gilts of HPY were selected from those gilts which had passed a performance test. We expected to combine both genetics and management techhiques for improving the reproductive performance of Yorkshire herds from these studies. The results are as follows: (1) The foundation herds of HPY progressed to the fourth generation. Growth performances such as average daily gain, feed conversion ratio, backfat thickness, and body length of progeny gilts selected were kept at the same level as the original foundation herd; (2) The reproductive performances of first mating age, interval from weaning to mating, total litter size, and fertility index were enhanced significantly (p<0.05) in each generation of HPY female progeny; and (3) Except for the first generation, the reproductive performances of HPY female progeny in each generation gradually improved from the second generation to the fourth generation. |
本系統中英文摘要資訊取自各篇刊載內容。