Please use this identifier to cite or link to this item:
Title: Breed-related number and size of muscle fibres and their response to carcass quality in chickens
Authors: Nunyarat Koomkrong
Sirin Theerawatanasirikul
Chaiwat Boonkaewwan
Sanchai Jaturasitha
Autchara Kayan
Keywords: Agricultural and Biological Sciences
Issue Date: 30-Nov-2015
Abstract: © N. Koomkrong et al., 2015. The present study was aimed to investigate the number and size of muscle fibre and their relation to carcass quality traits in chickens (slow- and fast-growing chicken strains). A total of 40 one-day-old Arbor Acres broiler (fast-growing) and 40 Thai native chickens (slow-growing) were reared to 45 and 112 days, respectively. The Arbor Acres broilers had heavier live weight, higher breast and thigh percentage than Thai native chickens (P<0.001). In breast muscle, there was no significant difference in total number of fibres and perimysium thickness. Thai native chickens had smaller fibre diameter and fibre area (P<0.01), and thicker endomysium in comparison with Arbor Acres broiler (P<0.001). The difference between the thigh and breast muscle fibre characteristics was not significant (P>0.05). The fibre diameter was positively correlated with live weight (P<0.05) and breast percentage (P<0.01). Endomysium thickness was correlated with live weight and breast percentage (P<0.05). There was no significant difference for the correlation between muscle fibre characteristics and thigh muscle. These results suggest that muscle fibre characteristics might be related to carcass quality.
ISSN: 15944077
Appears in Collections:CMUL: Journal Articles

Files in This Item:
There are no files associated with this item.

Items in CMUIR are protected by copyright, with all rights reserved, unless otherwise indicated.