多產豬種培育III.梅山豬與杜洛克豬雜交一代自交之產仔性狀與其後裔之生長性狀

Development of prolific swine Ⅲ. Littering performance of Meishan and Duroc crosses F1 and growth traits of their offspring

張伸彰(Shen-Chang Chang) ； 林旻蓉(Min-Jung Lin) ； 黃憲榮(Hsien-Juang Huang) ； 李錦足(Ching-Tzw Lee) ； 許晉賓(Chin-Bin Hsu) ； 王治華(Chih-Hua Wang) ； 吳明哲(Ming-Che Wu) ； 張秀鑾(Hsiu-Luan Chang)

《畜產研究》 38卷3期 (2005/09) Pp. 175-182

摘要

本研究利用梅山豬（M）與杜洛克豬（D）一代雜交種進行自交，期能自不同自交方式中選育多產、生長快以及適合台灣氣候環境之高繁品系豬種。試驗採用黑色之MD母豬（M母豬與配D公豬）156頭、MD公豬49頭及DM公豬（D母豬與配M公豬）30頭進行自交試驗，計分娩319胎（初產141胎、二產120胎、三產31胎、四產17胎與五產10胎），MD×MD及MD×DM組各分娩165及154胎，其中MD×MD組之後裔（MDMD）公豬128頭，女豬224頭；MD×DM組之後裔（MDDM）公豬142頭，女豬247頭。測定項目包括每窩出生總仔數（LS）、活仔數（LSA）及活仔之窩重（LWT），以及仔豬出生體重（WT0）及其出生存活率（SURV1＝LSA/LS）等。生長性能之檢定期間自70～210日齡，而測定性狀包括各階段體重（WT）、背脂厚度（BF）以及公豬全期之飼料轉換率（FCR）等。試驗結果發現MD×MD之出生體重顯著較MD×DM者輕（P＜0.001），但其LWT並無顯著差異。MDDM公豬之BF150、BF180及BF210均顯著較MDMD公豬為厚（P＜0.05），而其FCR則顯著較MDMD公豬者佳；而MDDM女豬之W70與W90均顯著較MDMD者輕。

關鍵字

梅山豬 ； 杜洛克豬 ； 產仔性狀 ； 生長性狀

並列摘要

The purpose of this study was to investigate the performances of MD×MD and MD×DM pigs. MD×MD were defined as MD sows bred by MD boars and MD×DM were defined as MD sows bred by DM boars. The growth performances of their offspring (MDMD and MDDM) were measured. A total of 79 boars (including 49 MD and 30 DM breeds, respectively) and 156 sows (black MD breeds) were used to produce 319 litters (141, 120, 31, 17 and 10 litters produced at first of five parities, respectively). We measured the performances of 165 and 154 litters of MD×MD and MD×DM, respectively and the growth performances of 611 offspring (128 MDMD boars, 224 MDMD gilts, 142 MDDM boars and 247 MDDM gilts). The items evaluated were litter size at birth (LS), live litter size at birth (LSA), live litter weight at birth (LWT), average piglet weight at birth (WT0) and piglet survival at birth (SURV1=LSA/LS). During 70~210 days of growth of the offspring, the body weights and backfat thickness at 150 (BF150), 180(BF180) and 210 (BF210) days of age were measured and the feed conversion ratio (FCR) of boars was tested. Results showed that MD×MD pigs had significantly (P＜0.001) lighter WT0 than MD×DM. Nevertheless, there was no difference in litter size at weaning. MDDM boars had thicker BF150, BF180, BF210 and better FCR than MDMD boars (P＜0.05). MDDM gilts had lighter W70 and W90 than MDMD gilts (P＜0.05).

並列關鍵字

Meishan pigs ； Duroc pigs ； Litter traits ； Growth traits