Volume 46, Issue 9 e16029
ORIGINAL ARTICLE

Effects of post-transport rest and electrical stimulation on meat quality of longissimus thoracis muscle of long-distance transported Simmental bulls

Gaiming Zhao

Gaiming Zhao

College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China

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Xueyuan Bai

Xueyuan Bai

College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China

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Wei Tian

Wei Tian

College of Animal Husbandry and Veterinary Science Engineering, Henan Agricultural University, Zhengzhou, China

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Ang Ru

Ang Ru

College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China

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Kang Xiao

Kang Xiao

College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China

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Jiahui Li

Jiahui Li

College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China

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Han Wang

Han Wang

College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China

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Longgang Yan

Longgang Yan

College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China

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Feng Yin

Feng Yin

College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China

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Chaozhi Zhu

Corresponding Author

Chaozhi Zhu

College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China

Correspondence

Chaozhi Zhu, College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, China.

Email: [email protected]

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Hang Li

Hang Li

National Beef Cattle and Yak Industry Technology System Hengdu Comprehensive Test Station, Zhumadian, China

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First published: 04 October 2021
Citations: 1

Abstract

Effects of lairage time (LT) and electrical stimulation (ES) on meat quality were investigated in 60 long-transported (18 hr) cattle. Animals were randomly allocated to a 3 × 2 factorial treatment (LT 24/48/72 hr and ES/NES). Compared with LT24, LT48 promoted glycogen recovery by 0.49 g/kg and, thereby, lowered pH24 (5.81) by 0.20 and dark-cutting incidence by 30%; meanwhile, LT48 exhibited 2.94% lower thawing loss and gave brighter beef color while decreased tenderness. Further extending LT to 72 hr did not present better meat quality than LT48. ES reduced pH1 and tenderized beef but no affected pH24; also, ES facilitated bound water converted to immobilized water while not reaching a significant effect on cooking loss or thawing loss. In conclusion, LT48-ES provided an alternative to dark-cutting prevention for long-transported cattle and meat quality improvement.

Novelty impact statement

Lairage time (LT) and electrical stimulation (ES) affect the postmortem pH drop. LT48-ES exhibits lower dark-cutting incidence and better meat quality. LT affects water-holding capacity through water distribution. ES elevates the meat tenderness.

CONFLICT OF INTEREST

The author declares that there is no conflict of interest that could be perceived as prejudicing the impartiality of the research reported.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available on request from the corresponding author.

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