营养水平对保育期美系长白猪血清生化指标的影响

Effects of dietary energy,crude protein,calcium and phosphorus on the serum biochemical parameters in conservation stage of Landrace pigs in USA

采用四因素三水平的L9（34）正交试验设计,研究了不同能量、粗蛋白、钙和磷水平对20-40 kg阶段美系长白猪血清生化指标的影响。结果表明：不同能量水平对血清总蛋白（TP）、血清球蛋白（Glo）有显著影响（P〈0.05）,对血清白蛋白/球蛋白比值（A/G）、血清钙（Ca）、血清总胆固醇（T-cho）和血清血糖（Glu）也有显著影响（P〈0.05）;不同粗蛋白水平对血清中TP、白蛋白（Alb）、Glo和尿素氮（BUN）有显著的影响（P〈0.05）,对血清A/G、血清Ca有显著影响（P〈0.05）;不同钙水平对血清中TP、Glo、Ca、A/G有显著影响（P〈0.05）;不同磷水平方面对血清中TP、Glo、磷（P）和BUN有显著的影响（P〈0.05）,对血清中A/G和Ca也有显著影响（P〈0.05）。

A experiment was conducted to study the effect of dietary nutrient levels on the serum biochemical parameters in Landrace pigs at 20～40 kg originally introduced from USA,and the orthogonal 4×3 factorial trial was used and 9 kind of diets were designed.The results showed that（1） the level of dietary energy had significant effect on the serum TP（P0.05）,Glo（P0.05）,A/G（P0.05）,Ca（P0.05）,T-cho（P0.05）and Glu（P0.05）;（2） the level of dietary crude protein had significant effect on the serum TP（P0.05）,Alb（P0.05）,Glo（P0.05）,BUN（P0.05）,A/G（P0.05）and Ca（P0.05）;（3） the level of dietary calcium（Ca） had significant effect on the serum TP（P0.05）,Glo（P0.05）,Glu（P0.05）,A/G（P0.05）;（4）the level of dietary phosphorus had significant effect on the serum TP（P0.05）,Glo（P0.05）,P（P0.05）,BUN（P0.05）,A/G（P0.05）and Ca（P0.05）.