中國畜牧學會會誌38

中國畜牧學會會誌38(增刊)	,2009
J. Chin. Soc. Anim. Sci. 38(Suppl.)

陳佳萱(1) (2) 顏念慈(1) 陳裕琪(1) 許晉賓(3) 王治華(3) 張慕慈(2) 黃木秋(2) 吳明哲(1)

(1)行政院農業委員會畜產試驗所、(2)國立中興大學動物科學系、

杜洛克豬繁殖能力低落，國內養豬產業卻仍多以杜洛克種豬作為終端公豬，為提升養豬產業競爭力，選育高繁殖新品種杜洛克是勢在必行的工作。我們期望能利用帶有多產基因（MM）與緊迫基因（AA）之高畜黑公豬（KHAPS black boar）來選育具多產與產精性能優秀的終端公豬。本試驗將杜洛克母豬分別與配第6 代（K6）與第7 代（K7）高畜黑豬公豬，產下台灣杜洛克級進一代公豬，公豬70 日齡時每胎選留一頭最優秀者參加檢定，共44 頭。綜合檢定結果顯示，在70 日齡體重為30.53±3.11 公斤，150 日齡完檢體重為93.36±9.8 公斤，平均檢定天數為78.91±1.8 天，平均日增重為0.8±0.11 公斤，飼料效率為2.68±0.27，平均三點背脂厚度為1.95±0.21 公分。如將K6 與 K7 高畜黑豬之後代予以區隔，在70 日齡體重分別為30.68±3.29 與30.39±2.99 公斤，150 日齡完檢體重為96.27±11.13 與90.45±7.41 公斤，平均檢定天數為78.91±2.24 與78.91±1.27 天，平均日增重為0.83±0.12 與0.76±0.08 公斤，飼料效率為2.74±0.31 與2.63±0.23，平均三點背脂厚度為2.03±0.28 與1.87±0.00 公分。級進第一世代的選育目標在於選留體型較大的公豬，評估檢定成績後，來自 K6 高畜公豬之後裔公豬其體型較大，將優先考慮選留以供級進配種使用。

THE PERFORMANCE EVALUTION OF F1 HYBRID BOARS OF DUROC SOWS SIREDWITH KHAPS BLACK BOARS

C. H. Chen,(1) (2) N. T. Yen, (1) Y. C. Chen,(1) C. B. Hsu, (3) C. H. Wang(3) M. T. Chang(2)M. C. Huang(2) and M. C. Wu(1)

(1)Livestock Research Institute, Council of Agriculture, Executive Yuan (2)Department of Animal Science, National Chung Hsing University (3) Kaohsiung Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Executive Yuan

Although Duroc pig is a breed with low reproductive performance, it is preferably used to be the terminal sire in pig industry. To promote the competitiveness of pig industry, the selection of new prolific breed of Duroc is the imperative work at present. We expected that the KHAPS black boars with ESR genotype (MM) and Hal-1843 genotype (AA) could be the sire to produce the terminal sire with prolific genotype and high sperm quality. Initially, the Duroc sows were sired with K6 and K7 KHAPS black boars to reproduce the F1 hybrid boars. The best one F1 hybrid boar in each litter was selected to test the growth performance, and a total of 44 F1 hybrid boars were evaluated. The results showed that BW70, BW150, average days evaluated (ADE), average daily gain (ADG), feed efficiency (FE), and average backfat thickness (BF) for F1 hybrid boars were 30.53 ± 3.11 kg, 93.36 ± 9.8 kg, 78.91 ± 1.8 d, 0.8 ± 0.11 kg/d, 2.68 ± 0.27, and 1.95 ± 0.21 cm, respectively. Furthermore, the BW70, BW150, ADE, ADG, FE and BF of F1 hybrid boars derived from K6 or K7 KHAPS sire were 30.68 ± 3.29 and 30.39 ± 2.99 kg, 96.27 ± 11.13 and 90.45 ± 7.41 kg, 78.91 ± 2.24 and 78.91 ± 1.27 d, 0.83 ± 0.12 and 0.76 ± 0.08 kg/d, 2.74 ± 0.31 and 2.63 ± 0.23, 2.03 ± 0.28 and 1.87 ± 0.00 cm, respectively. One of the major selection programs in F1 progeny was to select the bigger boars, and from our results showed that the F1 hybrid boars derived from K6 KHAPS black boar had bigger body size, thus, they will be used in the next generation of upgrading programs.