ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2007, Vol. 38 ›› Issue (7): 678-684.doi:

• 动物营养 • Previous Articles     Next Articles

Endogenous Outputs and True Digestibility of Phosphorus Associated with Peanut Meal and Soybean Meal in Growing Pigs by Multiple Linear Regression Analysis Technique

ZUO Jian-jun;WANG Jing;ZHANG Tie-ying;ZHANG Chang-ming;FENG Ding-yuan; YIN Yu-long;FAN Ming-zhe   

  1. 1.College of Animal Science, South China Agricultural University, Guangzhou 510642, China; 2.Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100094,China; 3. Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-07-25 Published:2007-07-25

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Abstract: Regression analysis technique was used to measure the fecal phosphorus (P) endogenous outputs and true P digestibility values with peanut meal and soybean meal in this study with growing pigs. Six Yorkshire×Landrace barrows, with average initial body weight of (24.8±1.42) kg, were fed in the metabolic cage. According to a 6×6 Latin square design, the six diets with soybean-cornstarch-glucose based experimental diet with peanut meal containing six P level (0.09%，0.17%，0.26%，0.35%，0.43%，0.53%) were formulated, in which the peanut meal and soybean meal were the only P source. Chromic oxide (0.35%) was included in the diets as digestibility marker. Each experimental period lasted 8 d with 6 d adaptation and 2 d collection of the feces.The results showed that the P endogenous outputs were 0.526 6 g/kg DMI, true P digestibility with peanut meal was 28.00%, and true P digestibility with soybean was 38.87% with regression analysis technique.