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.)

93.藍瑞斯母豬與賓朗公豬雜交種自交後裔F2之生長性狀與屠體性狀

顏念慈(1)、陳裕琪(1)、蘇儀苹(1)、陳佳萱(1)、朱賢斌(1)、陳坤照(1)、張秀鑾(2)、吳明哲(1)

本試驗旨在調查藍瑞斯母豬(L)與賓朗公豬(U)雜交種自交後裔F2(LU×LU)之生長性狀與屠體性狀，並進行LU×LU雜交肉豬19頭閹公豬及19頭女豬之生長性狀與屠體性狀之間相關性分析。兩年內共收集277頭(129♂、148♀)LU×LU仔豬生長性狀資料，其平日增重、背脂及飼料效率分別為0.56±0.11kg、2.07±0.25cm及3.22±0.52。屠宰率、屠體長、瘦肉率、脂肪率、骨骼率、左肋骨數、右肋骨數、活體重、心臟重、肝臟重、腎臟重及小腸長度，分別為85±3%、62.2±4.3cm、46±3%、15±4%、13±1%、14.4±0.6根、14.4±0.6根、73.3±10.1kg、352.9±165.7g、1022.9±244.3g、416.6±133.2g及1603.1±180.8cm。Pearson相關分析顯示平均日增重分別與屠體長、活體重及肝臟重之間有正相關(0.684、0.621及0.485)，但與骨骼率之間有負相關(-0.337)；平均背脂分別與心臟重、腎臟重及小腸長度有正相關(0.598、0.526、0.385)，但與肝臟重之間有負相關(-0.326)；平均飼料效率分別與心臟重及小腸長度有負相關(-0.356及-0.387)。

GROWTH AND CARCASS TRAITS OF THE F2 PROGENY FROM CROSSES BETWEEN LANDRACE SOW AND PEINAN BOAR

N. T. Yen(1), Y. C. Chen(1) , Y. P. Su(1), C. H. Chen(1), H. P. Chu(1), K. J. Chen(1) H. L. Chang(2) and M. C. Wu(1)

(1)Livestock Research Institute, Council of Agriculture, Executive Yuan; (2)National Ping Tung University of Science and Technology

The purpose of this study was to investigate growth and carcass traits of the progenies from LU×LU, in which L and U stood for Landrace and Peinan breed, respectively. The correlation between growth traits and carcass traits of 38 heads of LU×LU hogs (19 barrows and 19 gilts) was carried out by SAS Pearson correlation analysis. The growth traits included average daily gain (ADG), back fat (ABF) and feed efficiency (AFE) from 277 (129♂ and 148♀) heads of LU×LU piglets has been collected during the last two years. The results showed that the ADG, ABF and AFE of LU×LU piglets were 0.56±0.11kg, 2.07±0.25cm and 3.22±0.52, respectively. The dressing, carcass length (CL), lean percentage, fat percentage, bone percentage (BP), the number of left rib and right rib, live weight (LW), the weight of heart (WtH), liver (WtL) and kidney (WtK), and the length of small intestinal (LI) were 85±3%, 62.2±4.3cm, 46±3%, 15±4%, 13±1%, 14.4±0.6, 14.4±0.6, 73.3±10.1kg, 352.9±165.7g, 1022.9±244.3g, 416.6±133.2g and 1603.1±180.8cm, respectively. The coefficient of correlation between ADG and CL, LW and WtL were 0.684, 0.621 and 0.485 (P<0.01), respectively, but on the BP was -0.45(P<0.05). The coefficient of correlation between ABF and WtH, WtK and LI were 0.598 and 0.526 (P<0.01), and 0.385 (P<0.05), respectively, but on the WtL was -0.326 (P<0.05). The coefficient of correlation between AFE and WtH and LI, were -0.356 and -0.387 (P<0.05), respectively.