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Antibacterial Activity of Recombinant Pig Intestinal Parasite Cecropin P4 Peptide Secreted from Pichia pastoris
Cecropin Ascars suum Pichia pastoris Methanol Antimicrobial Activity
2016/5/16
Cecropins (Cec) are antibacterial peptides and their expression is induced in a pig intestinal parasite Ascaris suum by bacterial infection. To explore the usefulness of its activity as an antibiotic,...
采用放射免疫分析方法(RIA)测定蛋鸡性成熟过程中和产蛋期血液中FSH、LH和P4的含量,研究不同日粮能量水平对蛋鸡血液FSH、LH、P4和产蛋率的影响,进而研究这些激素与产蛋率的关系。结果表明,高能使见蛋日龄提前,但见蛋后,高能I和低能Ⅱ组产蛋率上升较慢。随着能量的降低,到达产蛋率峰值的时间推迟,峰值以对照组最高,低能组居中,高能组最低。峰值后,高能组产蛋率迅速下降,而其它各组在37周龄前产蛋率...