Effect of myofiber characteristics and thickness of perimysium and endomysium on meat tenderness of chickens

Poultry Science
J Y AnN Yang

Abstract

The objective of the present study was to evaluate the role of myofiber characteristics and the thickness of 2 major muscle membranes, perimysium and endomysium, in determining the breast meat tenderness of chickens. Birds from 2 breeds (White Leghorn and a line of broiler) were chosen. Chicks were sexed and wing-banded at hatch and were grown in separate cages in a single house. Sixty broilers and 60 White Leghorns were harvested at 6 wk of age, respectively, whereas another 60 White Leghorns were slaughtered at 18 wk of age. An equal number of males and females was maintained for each group. Body weight, breast muscle weight, pH, drip loss, cooking loss, Warner-Bratzler shear force value (SFV), total energy of shear force, fiber diameter, sarcomere length, myofiber density, and the thickness of endomysium and perimysium of the breast were determined for each bird. At 6 wk of age, histological examination indicated that the size of myofiber and thickness of endomysium and perimysium of broilers were larger than that those of White Leghorns (P < 0.01), whereas the SFV, drip loss, and cooking loss of broilers were smaller (P < 0.01). A comparison between the White Leghorns at 18 wk and the broilers at 6 wk, which were at similar...Continue Reading

Citations

Mar 24, 2012·Animal : an International Journal of Animal Bioscience·F SirriA Franchini
Feb 22, 2012·Nutrients·Massimiliano Petracci, Claudio Cavani
Jan 21, 2014·Annual Review of Food Science and Technology·Peter P Purslow
Nov 28, 2018·Korean Journal for Food Science of Animal Resources·Xi Huang, Dong Uk Ahn
Jan 8, 2020·Animals : an Open Access Journal From MDPI·Jingjing LiYiping Liu
May 23, 2017·Animal : an International Journal of Animal Bioscience·G BaldiM Petracci
May 3, 2019·Journal of Food Science·Jichao HuangMing Huang
Apr 24, 2019·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Robert Schleip, Werner Klingler

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