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<p>We assessed how lighting schedules during incubation, combined with either matched or mismatched lighting programs after hatch, influence blood serum parameters, carcass composition, and meat quality. This study employed a 5 × 4 factorial design to investigate the effects of pre- and post-hatch lighting schedules. During incubation, eggs were exposed to one of five lighting regimens from set until hatch: continuous cool white LED light (Inc24L); 16&#xa0;h light:8&#xa0;h darkness (Inc16L:8D); 12&#xa0;h light:12&#xa0;h darkness (Inc12L:12D); 8&#xa0;h light:16&#xa0;h darkness (Inc8L:16D); or continuous darkness (Inc24D). Upon hatch, the broilers were transferred to one of four post-hatch lighting schedules: continuous light (PH24L, designed to match Inc24L and Inc24D); 16&#xa0;h light:8&#xa0;h darkness (PH16L:8D, matching Inc16L:8D); 12&#xa0;h light:12&#xa0;h darkness (PH12L:12D, matching Inc12L:12D); or 8&#xa0;h light:16&#xa0;h darkness (PH8L:16D, matching Inc8L:16D). On day 28, serum chemistry, carcass characteristics, and meat quality traits were evaluated. The results showed that specific lighting regimens significantly influenced the measured parameters. The highest concentrations of glucose, uric acid, creatinine, and cholesterol were observed in birds from the Inc24L or PH24L treatments. Conversely, higher levels of albumin and globulin were associated with the Inc16L:8D or PH16L:8D, and Inc12L:12D or PH12L:12D regimens. Greater pre-slaughter and carcass weights were recorded for birds subjected to Inc8L:16D, Inc12L:12D, or PH24L. Notably, providing Japanese quail with a post-hatch lighting schedule that matched the incubation regimen did not significantly influence most of the carcass and meat quality traits measured. In conclusion, the implementation of a circadian lighting schedule during incubation may be a beneficial strategy for improving blood metabolite profiles and pre-slaughter body weight in Japanese quail.</p>

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Interactive effects of incubation and post-hatch lighting schedules on blood biochemistry and meat quality characteristics in Japanese quail

  • 期刊论文

  • 发表日期：

    2026年3月5日

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  • Hussnain Ali Akram,
  • Jibran Hussain,
  • Sohail Ahmad,
  • Muhammad Hayat Jaspal

摘要

We assessed how lighting schedules during incubation, combined with either matched or mismatched lighting programs after hatch, influence blood serum parameters, carcass composition, and meat quality. This study employed a 5 × 4 factorial design to investigate the effects of pre- and post-hatch lighting schedules. During incubation, eggs were exposed to one of five lighting regimens from set until hatch: continuous cool white LED light (Inc24L); 16 h light:8 h darkness (Inc16L:8D); 12 h light:12 h darkness (Inc12L:12D); 8 h light:16 h darkness (Inc8L:16D); or continuous darkness (Inc24D). Upon hatch, the broilers were transferred to one of four post-hatch lighting schedules: continuous light (PH24L, designed to match Inc24L and Inc24D); 16 h light:8 h darkness (PH16L:8D, matching Inc16L:8D); 12 h light:12 h darkness (PH12L:12D, matching Inc12L:12D); or 8 h light:16 h darkness (PH8L:16D, matching Inc8L:16D). On day 28, serum chemistry, carcass characteristics, and meat quality traits were evaluated. The results showed that specific lighting regimens significantly influenced the measured parameters. The highest concentrations of glucose, uric acid, creatinine, and cholesterol were observed in birds from the Inc24L or PH24L treatments. Conversely, higher levels of albumin and globulin were associated with the Inc16L:8D or PH16L:8D, and Inc12L:12D or PH12L:12D regimens. Greater pre-slaughter and carcass weights were recorded for birds subjected to Inc8L:16D, Inc12L:12D, or PH24L. Notably, providing Japanese quail with a post-hatch lighting schedule that matched the incubation regimen did not significantly influence most of the carcass and meat quality traits measured. In conclusion, the implementation of a circadian lighting schedule during incubation may be a beneficial strategy for improving blood metabolite profiles and pre-slaughter body weight in Japanese quail.