第三十四卷(2005)
不同品種女豬的飼料效率探討
陳裕琪(1) 王受鎔(2) 林鴻霖(2) 李世昌(1) 顏念慈(1) 王旭昌(2) 吳明哲(1)
(1)行政院農業委員會畜產試驗所 (2)財團法人中央畜產會
台灣豬隻飼料原料大多仰賴進口，因此長年來豬隻飼料效率被列為種豬群生長性能選拔的重要性狀之一。應用育種場自94年4月至9月完檢的67頭藍瑞斯、2頭約克夏及2頭杜洛克為基礎，對照比對中央檢定站南站200408至200504期完檢的47頭藍瑞斯、8頭約克夏及27頭杜洛克個檢女豬。檢定站種豬來源包括水波、願景金來、高昌、褔昌、義昌、合興、順安、金山等種豬場的豬隻。研究採逢機區集方式，進行飼料效率效應分析。中央檢定站南站不同女豬品種100公斤平均修正日齡為藍瑞斯145.47日、約克夏148.88日及杜洛克152.30日之情況下，其飼料效率平均為藍瑞斯2.19、約克夏2.19及杜洛克2.09，育種場不同女豬品種從70日齡開檢(藍瑞斯平均體重24.48㎏、約克夏平均體重28.15㎏及杜洛克平均體重30.75㎏)至150日齡(藍瑞斯平均體重92.48㎏、約克夏平均體重95.00㎏及杜洛克平均體重100.50㎏)完檢，其飼料效率為其飼料效率平均為藍瑞斯2.50、約克夏2.57及杜洛克2.63。初步結果顯示女豬飼料效率場間差異顯著 (p<0.01)，但品種間差異不大。育種場杜洛克品種因參檢頭數較少，選拔壓力較小，飼料效率稍差。
關鍵語：飼料效率、藍瑞斯女豬、台灣
FEED EFFICIENCY OF PURE BREED GILTS
Y. C. Chen(1), S. J. Wang(2), H. L. Lin(2), S. C. Lee(1),.N. T. Yen1, S. C Wang(2) and M. C. Wu(1).
(1)Livestock Research Institute, Council of Agriculture, Executive Yuan
(2)National Animal Industry Foundation
In Taiwan, most of the feed ingredients for pig production are imported. Therefore, feed efficiency is one of the most important traits for swine breeding goal’s. To investigate feed efficiency of different breed gilts, performance test data of 67 Landrace(L), 2 Yorkshire(Y) and 2 Duroc(D) gilts, finished on farm test in a research farm from Apr. 2004 to Sep. 2005, was selected first. Data of class 200408 to 200504 of the Southern Central test station was sampled simultaneously, which has 47 L, 8 Y and 27 D gilts. The gilts in test station were from eight different breeding farms. Adjusted age at 100kg body weight of test station gilts were 145.47(L), 148.88(Y) and 152.30(D) days and the feed efficiency were 2.19(L), 2.19(Y) and 2.09(D), separately. . The research farm gilts with 70 and 150 days of age to start and finish the performance test, the average feed efficiency were 2.50(L), 2.57(Y) and 2.63(D), separately. The results showed farm effect was differ significantly, but no differences among breeds were detected. The feed efficiency of Duroc gilts of research farm was slightly worse than Landrace and Duroc gilts’, which might related to its smaller population size constrained selection intensity and selection difference.
Key Words: Feed efficiency, Landrace gilt, Taiwan
  
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