Spatiotemporal quantification of Gallus gallus domesticus myocardium components myocardium of Gallus gallus domesticus

Abstract

This study aimed to investigate the morphological, functional, and structural components of the Gallus gallus domesticus myocardium. The evaluation was performed over a seven-week period to determine the remodeling of this organ in a lineage of broiler chicken. The study group consisted of twenty one animals aged between one and seven weeks old, separated in G1 to G7. The assessed parameters were: volume density of cardiomyocytes and interstitium; and densities of connective tissue, collagen fibers I and III, interstitium, and their correlations over the studied period, to determine body remodeling. The Vv(cardiomyocytes) values decreased from 73.89% to 47.78%. The Vv (interstitial) increased from 25.98% to 48.89%. The percentage of connective tissue increased from 3.29% to 13.75%. The type I collagen fiber increased from 0.06% to 0.5% in the last week. The type III collagen decreased 46% in the period, from 0.39% at baseline to 0.18% at the end.