1. Kinetics of selenium absorption in ligated small intestinal loops of chicks
- Author
-
Zhi-min An, Yan-zhong Feng, Su-fen Li, Xue-yu Dong, Guoqing Liu, Shumin Zhang, Xugang Luo, Xiu-dong Liao, Liyang Zhang, Lin Lu, and Runlian Wang
- Subjects
0106 biological sciences ,Absorption (pharmacology) ,Agriculture (General) ,Kinetics ,chemistry.chemical_element ,Plant Science ,broiler ,digestive system ,01 natural sciences ,Biochemistry ,S1-972 ,Absorption rate ,Food Animals ,medicine ,Absorption kinetics ,selenium ,Chromatography ,Ecology ,Chemistry ,digestive, oral, and skin physiology ,Intestinal loops ,04 agricultural and veterinary sciences ,Small intestine ,medicine.anatomical_structure ,kinetics ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,Animal Science and Zoology ,small intestine ,absorption ,Agronomy and Crop Science ,Perfusion ,Selenium ,010606 plant biology & botany ,Food Science - Abstract
Selenium (Se) is an essential trace element that has a large number of biological functions for broilers. However, the absorption kinetics of Se from sodium selenite in the small intestine of broilers remains unclear. Therefore, two experiments were conducted with 28-d-old commercial male broilers to study the kinetics of Se absorption in ligated small intestinal segments. In experiment 1, the Se absorption in duodenal, jejunal, and ileal segments at different post-perfusion time points (0, 20, 40, 60, 80, 100 and 120 min) were compared. In experiment 2, a kinetic study of Se absorption was conducted with the duodenal, jejunal, and ileal loops perfused with solutions containing 0, 0.0375, 0.075, 0.15, 0.30, or 0.60 μg mL−1 of Se as sodium selenite, and Se contents in perfusates were determined at 100 min after perfusion. The results from experiment 1 showed that the Se absorption increased in an asymptotic response (P0.05) in the Se absorption rate among different ligated small intestinal segments perfused with solutions containing 0.0375–0.15 μg mL−1 of Se, however, the Se absorption rate was higher (P
- Published
- 2020