Effects of Chromium-Loaded Chitosan Nanoparticles on the Intestinal Electrophysiological Indices and Glucose Transporters in Broilers
2019
Sajid Khan Tahir | Muhammad Shahbaz Yousaf | Sohrab Ahmad | Muhammad Khurram Shahzad | Ather Farooq Khan | Mohsin Raza | Khalid Abdul Majeed | Abia Khalid | Hafsa Zaneb | Imtiaz Rabbani | Habib Rehman
The present study aimed to evaluate the effect of chromium-loaded chitosan nanoparticles (Cr-CNPs) on the electrophysiological indices, gene expression of glucose transporters, and tissue glycogen in broilers. A total of 200 one-day-old broilers were randomly divided into five groups, with each having five replicates (n = 8). Group A was fed a corn&ndash:soybean meal diet, while the diets of groups B, C, D, and E were supplemented with 200, 400, 800, and 1200 µ:g/kg of Cr as Cr-CNPs, respectively. On day 35, the jejunum was collected for electrophysiological study, gene expression of glucose transporters, and tissues glycogen determination. The basal short-circuit current and tissue conductance before the addition of glucose was the same in all groups. Following the addition of glucose, the change in short-circuit current decreased (p <: 0.05) in the jejunal tissues of birds supplemented with 400 and 1200 µ:g Cr-CNPs compared with the control group. Gene expression of SGLT-1 and GLUT-2 remained unaffected with supplementation. The serum glucose and liver glycogen concentration decreased (p <: 0.05) linearly with supplementation, while no effect was observed on muscle glycogen. In conclusion, Cr-CNPs supplementation decreases the glucose absorption and liver glycogen content, without affecting the gene expression of glucose transporters.
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