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https://doi.org/10.5713/ab.22.0044    [Accepted] Published online June 30, 2022.
Assessment of chicken thigh meat quality of Ross 308 broiler of animal welfare certified farm
Hee-Jin Kim1  , Dong-Jin Shin2  , Hye-Jin Kim2  , Jinwoo Cho2  , Ji-Seon Kwon2  , Dongwook Kim2  , Jong-Hyun Jung4  , Aera Jang2,* 
1Poultry Research Institute, National Institute of Animal Science, Rural Development Administration, Pyeongchang 25342, Korea
2Department of Applied Animal Science, College of Animal Life Science, Kangwon National University, Chuncheon 24341, Korea
3R&D Material Research, Shinsegae Food Co., Ltd, Seoul 4793, Korea
4Jung P&C Institute, Inc., Yongin 16950, Korea
Correspondence:  Aera Jang, Tel: +82-33-250-8643, Fax: +82-33-259-5574, Email: ajang@kangwon.ac.kr
Received: 28 January 2022   • Revised: 30 March 2022   • Accepted: 3 June 2022
Abstract
Objective
This study aimed to evaluate the difference in the thigh meat quality of Ross 308 broiler from conventional and welfare farms.
Methods
Thigh meat samples of Ross 308 broilers (age, 35 d; carcass weight, 1.1 kg) from conventional farm (RCF, n = 60) and animal welfare farms (RAWF, n = 60) were analyzed. Proximate composition, pH, color (lightness, redness, and yellowness), water-holding capacity (WHC), shear force, total aerobic bacteria (TAB), and volatile basic nitrogen (VBN) were measured and the levels of bioactive compounds such as dipeptides (anserine and carnosine), creatine, creatinine, and their anti-oxidation activity were determined.
Results
RCF and RAWF did not differ significantly in their proximate composition, WHC, color, and creatine and carnosine levels. The pH value was significantly lower in RAWF than in RCF on day 7. The shear force value was significantly higher in RAWF than in RCF throughout the storage duration. TAB in RCF on day 9 were significantly higher than those in RAWF. VBN content of RAWF was significantly lower than that of RCF after 5 days of storage. Creatinine content was significantly higher in RAWF (3.50 mg/100 g) than in RCF (3.08 mg/100 g) on day 1. Along with higher carnosine and anserine contents of RAWF, it had significantly higher 2,2-diphenyl-1-picrylhydrazyl and 2,2-azinobis (3-ethyl-benzothiazoline-6-sulfonic acid) radical scavenging activities than those of RCF.

Conclusion

These results imply that the animal welfare farming system beneficially affects the overall oxidative stability of Ross 308 thigh meat.
Keywords: Welfare; Chicken; Dipeptides; Meat Quality; Ross 308
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