第四十三卷(2014)
臺灣杜洛克與其它品種屠體性能之比較
陳佳萱(1)、楊正宏(2)、李春榮(3)、蕭錦堂(4)、張文喜(5)、吳明哲(1)
(1)行政院農業委員會畜產試驗所 (2)福昌種豬場 (3) 合一種豬場 (4)水波種豬場 (5)順安種豬場
杜洛克種豬以生長、屠體及肉質性能佳為特色，本試驗選育目標為培育繁殖性能優良的新品種，具杜洛克外觀、多產與肉質基因的臺灣杜洛克新品種。試驗評估臺灣杜洛克各世代及其它品種閹公豬與女豬的屠體性能，本試驗共屠宰3種豬隻品種，包括臺灣杜洛克豬，其又分成取自育種場（共19頭；10頭閹公豬與9頭女豬）或民間種豬場（共12頭；6頭閹公豬與6頭女豬）、育種場雜交肉豬 LR (L♀ × R♂) （共25頭；16頭閹公豬與9頭女豬），及民間種豬場提供的純種杜洛克（共12頭；閹公豬8頭與女豬4頭）。試驗結果顯示，各品種平均脂肪率約8∼10％，瘦肉率以R4代閹公豬的54.16%與LR雜交品種女豬的53.03%最高；背脂厚度以R5代閹公豬的1.63公分與杜洛克女豬1.33公分最低；腰眼面積以杜洛克閹公豬58.40平方公分與R5代女豬的68.87平方公分最高，且腰眼面積與屠體重有顯著正相關。屠體長在閹公豬與女豬皆以LR雜交品種的105公分最長，其次是R4代閹公豬102.40公分。
關鍵語：臺灣杜洛克、屠體性能、閹公豬
COMPARISON ON CARCASS TRAITS IN TAIWAN DUROC AND OTHER PIG BREEDS
C. H. Chen(1), C. H. Yang(2),C. J. Li (3), C. T. Hsiao(4), W. H. Chang(5) and M. C. Wu(1)
(1)Livestock Research Institute, Council of Agriculture, Executive Yuan (2) Fu Chang pig farm (3)Ho Yi pig farm (4)Shui Po pig farm (5)Shun An pig farm
High carcass yield and meat quality, and the ability to grow quickly were characteristics Duroc possessed. The breeding goal was to develop a new breed with Duroc characteristics, prolific and high-quality meat genes. The carcass traits among Duroc and other breeds of barrow and gilt were compared in this study. Three pig breeds were sacrificed for collecting the carcass traits which includes the Taiwan Duroc from the swine breeding farm (10 barrows and 9 gilts) and pig farms (6 barrows and 6 gilts), LR pig (L♀ × R♂) from the swine breeding farm (16 barrows and 9 gilts), and pure Duroc from pig farms (8 barrows and 4 gilts). The results showed that average of fat percentage was 8 to 10 % among these three breeds. The highest percentage of lean was 54.16% and 53.03% in barrows of R4 and gilts of LR, respectively. The lowest backfat thickness was 1.63 and 1.33 cm in barrows of R5 and gilts of Duroc, respectively. The longest loin eye area was 58.40 and 68.87 cm2 in barrows of Duroc and gilts of R5, respectively. Moreover, the longest carcass length was 105 cm either in barrows or gilts of LR, followed by barrows of R4 which carcass length was 102.40 cm.
Key Words: Taiwan Duroc, Carcass Traits, Barrow
  
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