TITLE:
The Correlation between the Activities of Digestive Enzymes in the Pancreas and Blood Serum in Chicken
AUTHORS:
V. G. Vertiprakhov, A. A. Grozina, V. I. Fisinin, I. A. Egorov
KEYWORDS:
Blood Serum, Chicken, Pancreas, Pancreatic Enzymes, Pancreatic Juice
JOURNAL NAME:
Open Journal of Animal Sciences,
Vol.8 No.3,
June
26,
2018
ABSTRACT: 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.