Effect of photoperiod during incubation on embryonic temperature, hatch traits, and performance of 2 commercial broiler strains
ABSTRACT: Provision of light during incubation has shown the potential to enhance hatching traits and affect posthatch productivity, physiology, and behavior. In this study, 2 repeated trials were conducted to investigate the effect of photoperiod and strain on the embryo temperature, hatching trait...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Poultry Science |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0032579123001566 |
| _version_ | 1797819874284666880 |
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| author | Xujie Li Nancy McLean Janice MacIsaac Alex Martynenko Bruce Rathgeber |
| author_facet | Xujie Li Nancy McLean Janice MacIsaac Alex Martynenko Bruce Rathgeber |
| author_sort | Xujie Li |
| collection | DOAJ |
| description | ABSTRACT: Provision of light during incubation has shown the potential to enhance hatching traits and affect posthatch productivity, physiology, and behavior. In this study, 2 repeated trials were conducted to investigate the effect of photoperiod and strain on the embryo temperature, hatching traits and posthatch growth performance of 2 commercial strains of broilers (Ross 308 and Cobb 500). In each trial, hatching eggs were randomly distributed into 6 incubators with 3 photoperiod treatments: blue LED light for 12 h d−1 (12L:12D) or 18 h d−1 (18L:6D) during entire incubation were compared with no illumination condition (DARK). Data were analyzed as a 3 × 2 factorial arrangement with the trial as the blocking factor. Embryos incubated under 12L:12D and 18L:6D had lower air cell temperature (P < 0.05) than the DARK embryos from d 13 of incubation onward except on the day of candling. The response of air cell temperature to periodic illumination differed between 2 strains. Cobb embryos had lower air cell temperature in 12L:12D than those incubated with 18L:6D from d 16 of incubation onward, whereas lower air cell temperature was found in Ross embryos when illuminated with 18L:6D photoperiod compared to those under 12L:12D. The 12L:12D treatment was associated with improved (P < 0.05) navel closure condition of hatchlings. There were no differences in hatchability, embryo mortality, body weight, or length at hatch among photoperiod groups or its combination with strain. No differences in production parameters were found between DARK and illuminated groups. However, 12L:12D had heavier (P < 0.05) body weight on d 14 of age and higher (P < 0.05) body weight gain than 18L:6D from d 7 to 14 of age. The results of this study indicate that providing blue LED light up to 18 h d−1 has no detrimental effect on production of broilers, however, 12L:12D light regime improved chick quality at hatch compared to DARK and resulted in heavier birds by d 14 compared to 18L:6D. |
| first_indexed | 2024-03-13T09:30:01Z |
| format | Article |
| id | doaj.art-3eba6eda59fe4897ab13640fc447f5dd |
| institution | Directory Open Access Journal |
| issn | 0032-5791 |
| language | English |
| last_indexed | 2024-03-13T09:30:01Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Poultry Science |
| spelling | doaj.art-3eba6eda59fe4897ab13640fc447f5dd2023-05-26T04:20:42ZengElsevierPoultry Science0032-57912023-06-011026102632Effect of photoperiod during incubation on embryonic temperature, hatch traits, and performance of 2 commercial broiler strainsXujie Li0Nancy McLean1Janice MacIsaac2Alex Martynenko3Bruce Rathgeber4Department of Animal Science and Aquaculture, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, CanadaDepartment of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, CanadaDepartment of Animal Science and Aquaculture, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, CanadaDepartment of Engineering, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, CanadaDepartment of Animal Science and Aquaculture, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada; Corresponding author:ABSTRACT: Provision of light during incubation has shown the potential to enhance hatching traits and affect posthatch productivity, physiology, and behavior. In this study, 2 repeated trials were conducted to investigate the effect of photoperiod and strain on the embryo temperature, hatching traits and posthatch growth performance of 2 commercial strains of broilers (Ross 308 and Cobb 500). In each trial, hatching eggs were randomly distributed into 6 incubators with 3 photoperiod treatments: blue LED light for 12 h d−1 (12L:12D) or 18 h d−1 (18L:6D) during entire incubation were compared with no illumination condition (DARK). Data were analyzed as a 3 × 2 factorial arrangement with the trial as the blocking factor. Embryos incubated under 12L:12D and 18L:6D had lower air cell temperature (P < 0.05) than the DARK embryos from d 13 of incubation onward except on the day of candling. The response of air cell temperature to periodic illumination differed between 2 strains. Cobb embryos had lower air cell temperature in 12L:12D than those incubated with 18L:6D from d 16 of incubation onward, whereas lower air cell temperature was found in Ross embryos when illuminated with 18L:6D photoperiod compared to those under 12L:12D. The 12L:12D treatment was associated with improved (P < 0.05) navel closure condition of hatchlings. There were no differences in hatchability, embryo mortality, body weight, or length at hatch among photoperiod groups or its combination with strain. No differences in production parameters were found between DARK and illuminated groups. However, 12L:12D had heavier (P < 0.05) body weight on d 14 of age and higher (P < 0.05) body weight gain than 18L:6D from d 7 to 14 of age. The results of this study indicate that providing blue LED light up to 18 h d−1 has no detrimental effect on production of broilers, however, 12L:12D light regime improved chick quality at hatch compared to DARK and resulted in heavier birds by d 14 compared to 18L:6D.http://www.sciencedirect.com/science/article/pii/S0032579123001566incubation lightingphotoperiodembryo temperaturechick qualityproductivity |
| spellingShingle | Xujie Li Nancy McLean Janice MacIsaac Alex Martynenko Bruce Rathgeber Effect of photoperiod during incubation on embryonic temperature, hatch traits, and performance of 2 commercial broiler strains Poultry Science incubation lighting photoperiod embryo temperature chick quality productivity |
| title | Effect of photoperiod during incubation on embryonic temperature, hatch traits, and performance of 2 commercial broiler strains |
| title_full | Effect of photoperiod during incubation on embryonic temperature, hatch traits, and performance of 2 commercial broiler strains |
| title_fullStr | Effect of photoperiod during incubation on embryonic temperature, hatch traits, and performance of 2 commercial broiler strains |
| title_full_unstemmed | Effect of photoperiod during incubation on embryonic temperature, hatch traits, and performance of 2 commercial broiler strains |
| title_short | Effect of photoperiod during incubation on embryonic temperature, hatch traits, and performance of 2 commercial broiler strains |
| title_sort | effect of photoperiod during incubation on embryonic temperature hatch traits and performance of 2 commercial broiler strains |
| topic | incubation lighting photoperiod embryo temperature chick quality productivity |
| url | http://www.sciencedirect.com/science/article/pii/S0032579123001566 |
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