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102.台灣杜洛克公豬與配藍瑞斯母豬繁殖性能之研究

陳佳萱(1) 顏念慈(1) 陳裕琪(1) 范文彬(2) 吳明哲(1)

(1)行政院農業委員會畜產試驗所 (2)豐華養豬場

培育台灣杜洛克新品種的目標是將多產基因MM型帶入公豬，並取代美國杜洛克成為雜交肉豬之終端公豬。本試驗選定R2與R3代台灣杜洛克公豬與畜產試驗所育種場與民間肉豬場的藍瑞斯母豬進行雜交試驗，試驗收集17胎 (育種場12胎與民間場5胎），試驗母豬均包括初產與經產母豬。試驗結果：育種場與民間肉豬場分別為出生窩仔數9.33 ± 3.65與 11.20 ± 1.79頭；出生活仔數8.33 ± 2.67與9.40 ± 1.34頭；出生體重1.84 ± 0.53與1.98 ± 0.33公斤；21日齡體重8.36 ± 11.09公斤；70日齡體重30.61 ± 5.11公斤(肉豬場無進行21與70日齡秤重)；乳頭數13.20 ± 1.24個，試驗結果顯示，台灣杜洛克公豬作為終端公豬在民間肉豬場的出生窩仔數、出生活仔數與出生體重比育種場有較優良表現。

關鍵語：台灣杜洛克、繁殖、母豬

Study on Reproductive Performance of Landrace Sows Mated with Taiwan Duroc Boars

C. H. Chen,(1) N. T. Yen, (1) Y. C. Chen (1), W. P. Fan(2) and M. C. Wu(1)

(1)Livestock Research Institute, Council of Agriculture, Executive Yuan (2) Fung Hua pig farm

The breeding objective for new Taiwan Duroc boars was to introduce MM genotype of the prolific gene into the boars, and to replace the American Duroc to become the terminal sire used in meat production. In this study, Taiwan Duroc boars of the R2 and R3 generation were mated with Landrace sows from breeding farm (Livestock Research Institute, LRI) and pig farm. Data on reproductive performance, including litter size at birth, piglet born alive, body weight (BW) at birth, BW at 21 days of age, BW at 70 days of ages, litter size at weaning, and teat number of 17 litters of sows were collected from LRI and pig farms. The results showed that litter size at birth, piglet born alive, and body weight (BW) at birth in breeding farm and pig farm were 9.33 ± 3.65 and 11.20 ± 1.79; 8.33 ± 2.67 and 9.40 ± 1.34; 1.84 ± 0.53 and 1.98 ± 0.33 kg, respectively, and BW at 21 days of age, BW at 70 days of ages, and teat number in breeding farm were 8.36 ± 11.09 kg, 30.61 ± 5.11 kg and 13.20 ± 1.24, respectively. These results revealed that the litter size at birth, piglet born alive, and body weight (BW) at birth of sows from pig farms mated with new Taiwan Duroc boars was better than those of breeding farm.

Key Words: Taiwan Duroc, Reproductive Performance, Sow