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Effects of transport time and feeding type on weight loss, meat quality and behavior of broilers

  • Fu, Yajie (College of Life Science, Northeast Agricultural University) ;
  • Yin, Jingwen (College of Life Science, Northeast Agricultural University) ;
  • Zhao, Ning (College of Life Science, Northeast Agricultural University) ;
  • Xue, Ge (College of Life Science, Northeast Agricultural University) ;
  • Zhang, Runxiang (College of Animal Science and Technology, Northeast Agricultural University) ;
  • Li, Jianhong (College of Life Science, Northeast Agricultural University) ;
  • Bao, Jun (College of Animal Science and Technology, Northeast Agricultural University)
  • Received : 2021.08.26
  • Accepted : 2022.01.12
  • Published : 2022.07.01

Abstract

Objective: The purpose of this study is to determine the optimal time of transportation of floor-feed and scatter-feed broilers. Methods: Eighty healthy Arbor Acres (AA) broilers (21-day-old, 624.4 g, male, standard error = 6.65) were selected and randomly divided into two experimental groups (floor-feed and scatter-feed), then fed for three weeks. The experiment comprised a 2×4 factorial design with 2 feed patterns (floor-feed and scatter-feed) and 4 transport periods (2, 3, 4, and 5 h), and 4 replicates of 5 broilers (54-day-old, 2243 g, standard error = 46.65) was used to compare weight loss, meat quality and behavior index of different groups. Results: It appeared that drip loss, meat color and resting behavior of experimental broilers changed as length of transportation (p<0.05), however, weight loss and pH were not significantly transformed (p>0.05). Compared with floor-feed group, broilers in scatter-feed group had lower pH at 24 hours (3 h) and different behavioral indicators (p<0.05). Especially indicators after 3 h transportation, there were obvious differences between the two feeding modes in the behavior reaction of stress events before slaughter with different transport duration (p<0.05). The fluctuation of data on resting behavior with scatter-feed was significantly higher than that of floor-feed broilers. There was no interaction between transport time and different feeding methods for index tested of our experiment (p>0.05). Conclusion: Comprehensive analysis showed that the maximum transport duration of floor-feed and scatter-feed broilers should not exceed 3 h, and scatter-feed broilers were more likely prone to fear.

Keywords

Acknowledgement

The authors thank the members of the animal behavior and welfare laboratory at the College of Animal Science and Technology in Northeast Agricultural University.

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