mRNA expression

Effects of exogenous protease supplementation on endogenous trypsin activity and gene expression in broilers

L. Yuan, Wang, S. Q., Wang, Z. X., Zhu, H., and Huang, K., Effects of exogenous protease supplementation on endogenous trypsin activity and gene expression in broilers, vol. 14, pp. 13633-13641, 2015.

Two hundred and forty one-day-old male broiler chickens (Ross-308) were fed corn-soybean basal diets with 0, 40, 80, or 160 mg/kg of an acid protease preparation from 1 to 42 days of age, in order to investigate the effects of an exogenous enzyme on growth performance, pancreatic trypsin activity and mRNA expression. Average daily gain (ADG) was greatest in the 160-mg/kg treatment group at 1-21 days, which was significantly higher than that in the control. After 42 days, average daily feed intake (ADFI) and ADG had significantly increased in the 80- and 160-mg/kg treatments (P

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