Author(s)

V. G. Vertiprakhov^*, A. A. Grozina, V. I. Fisinin, I. A. Egorov

All-Russian Research and Technological Institute of Poultry, Sergiev Posad, Russia.

It is presently an established fact that pancreatic enzymes (amylase, lipase, and trypsin) can enter the bloodstream as well as the intestine. These enzymes normally circulate within the bloodstream in definite concentration ranges. There is a lack of available information on the interrelationships between the enzymatic activities in pancreatic juice and blood serum in poultry. The study presented was aimed at the determination of possible correlation between the activities of the digestive enzymes in pancreatic juice or pancreatic tissue and in blood serum in chicken. The study was performed on Leghorn cockerels with chronically fistulated main pancreatic duct, and broiler chicks at different ages (14, 24, 28, and 35 days). Activities of all digestive enzymes in pancreatic juice in cockerels were found to grow in 1 hr after the feeding: amylase by 1.8 times, lipase 1.5 times, and proteases 1.3 times compared to basal level (after starving). Activity of trypsin in serum significantly increased by 67.4% in 1 hr after the feeding (P < 0.001) while activities of amylase and lipase remained at their respective preprandial levels. The activities of pancreatic enzymes in the pancreas and blood serum in broilers at different ages were positively correlated: r = 0.54 for amylase, r = 0.96 for lipase, and r = 0.99 for trypsin. The strong positive correlation between tryptic activities in the pancreas or pancreatic juice and in blood serum in chicken can be a starting point for further research on the functions of circulatory trypsin which can include the regulation of exocrine pancreatic activity and other vital functions.

Blood Serum, Chicken, Pancreas, Pancreatic Enzymes, Pancreatic Juice

Vertiprakhov, V. , Grozina, A. , Fisinin, V. and Egorov, I. (2018) The Correlation between the Activities of Digestive Enzymes in the Pancreas and Blood Serum in Chicken. Open Journal of Animal Sciences, 8, 215-222. doi: 10.4236/ojas.2018.83016.