Pancreatic exocrine secretion and plasma concentration of some gastrointestinal hormones in response to abomasal infusion of starch hydrolyzate and/or casein

Journal of Animal Science
K C SwansonD L Harmon

Abstract

Eight Angus steers (290 +/- 8 kg), surgically prepared with pancreatic pouch-duodenal reentrant cannulas and abomasal infusion catheters were used in a replicated 4 x 4 Latin square experiment to investigate the effects of abomasal infusion of starch hydrolyzate (SH) and/or casein on pancreatic exocrine secretion and plasma concentration of hormones. Steers were fed a basal diet of alfalfa (1.2 x NEm) in 12 equal portions daily. Abomasal infusion treatments (6-L total volume infused per day) were water (control), SH [2.7 g/(kg BW x d)], casein [0.6 g/(kg BW x d)], and SH + casein. Periods were 3 d for adaptation and 8 d of full infusion. Pancreatic juice and jugular blood samples were collected over 30-min intervals for 6 h on d 11. Weight and pH of pancreatic samples were measured, and a 10% subsample was composited and frozen until analysis of total protein and pancreatic enzyme activities. The remaining sample was returned to the duodenum. Plasma was harvested and frozen until analyzed. Pancreatic juice (67 mL/h) and protein (1.8 g/h) secretion rates were not affected by nutrient infusion. There were SH x casein interactions for all pancreatic enzyme secretions (U/h; alpha-amylase, P < 0.03; trypsin, P < 0.08; and chymotryps...Continue Reading

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Citations

Jan 1, 2008·JPEN. Journal of Parenteral and Enteral Nutrition·Bo-Guang Fan
Mar 20, 2008·Journal of Dairy Science·G I Zanton, A J Heinrichs
Nov 22, 2017·Archives of Animal Nutrition·Kai LiuJunhu Yao
Feb 7, 2020·Animal : an International Journal of Animal Bioscience·D L Harmon, K C Swanson
Apr 24, 2009·Journal of Animal Physiology and Animal Nutrition·M XuJ H Yao
Mar 21, 2013·Journal of Animal Physiology and Animal Nutrition·Z P YuF Wang
Jun 2, 2006·Lab Animal·María Eugenia SabbatiniMarcelo S Vatta
Jan 17, 2021·Animals : an Open Access Journal From MDPI·Ronald J Trotta, Kendall C Swanson

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