Heat stress effects on the genetics of growth traits in Thai native chickens (Pradu Hang dum)
Objective The objective of this study was to investigate the effect of heat stress on the growth traits and genetic parameters of Thai native chickens. Methods A total of 16,487 records for growth traits of Thai native chickens between 2017 and 2022 were used in this study. Data included the body we...
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| Format: | Article |
| Language: | English |
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Asian-Australasian Association of Animal Production Societies
2024-01-01
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| Series: | Animal Bioscience |
| Subjects: | |
| Online Access: | http://www.animbiosci.org/upload/pdf/ab-23-0165.pdf |
| _version_ | 1827391946776117248 |
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| author | Wuttigrai Boonkum Vibuntita Chankitisakul Srinuan Kananit Wootichai Kenchaiwong |
| author_facet | Wuttigrai Boonkum Vibuntita Chankitisakul Srinuan Kananit Wootichai Kenchaiwong |
| author_sort | Wuttigrai Boonkum |
| collection | DOAJ |
| description | Objective The objective of this study was to investigate the effect of heat stress on the growth traits and genetic parameters of Thai native chickens. Methods A total of 16,487 records for growth traits of Thai native chickens between 2017 and 2022 were used in this study. Data included the body weight at birth, body weight at 4, 8, and 12 weeks of age (BW0, BW4, BW8, BW12), average daily gain during 0 to 4, 4 to 8, and 8 to 12 weeks of age (ADG0–4, ADG4–8, ADG8–12), absolute growth rate at birth, at 4, 8, and 12 weeks of age (AGR0, AGR4, AGR8, AGR12). The repeatability test day model used the reaction-norm procedure to analyze the threshold point of heat stress, rate of decline of growth traits, and genetic parameters. Results At temperature and humidity index (THI) of 76, Thai native chickens began to lose their growth traits, which was the onset of heat stress in this study. The estimated heritability, genetic correlation between animal and heat stress effect, and correlations between the intercept and slope of the permanent environmental effects were 0.27, −0.85, and −0.83 for BW, 0.17, −0.81, and −0.95 for ADG, 0.25, −0.61, and −0.83 for AGR, respectively. Male chickens are more affected by heat stress than female chickens with a greater reduction of BW, ADG, and AGR, values equal to −9.30, −0.23, −15.21 (in males) and −6.04, −0.21, −10.10 (in females) gram per 1 level increase of THI from the THI of 76. Conclusion The influence of thermal stress had a strong effect on the decline in growth traits and genetic parameters in Thai native chickens. This study indicated that genetic models used in conjunction with THI data are an effective method for the analysis and assessment of the effects of heat stress on the growth traits and genetics of native chickens. |
| first_indexed | 2024-03-08T17:21:50Z |
| format | Article |
| id | doaj.art-7a8c6bfae7d44d328e3c5aa2cf51949d |
| institution | Directory Open Access Journal |
| issn | 2765-0189 2765-0235 |
| language | English |
| last_indexed | 2024-03-08T17:21:50Z |
| publishDate | 2024-01-01 |
| publisher | Asian-Australasian Association of Animal Production Societies |
| record_format | Article |
| series | Animal Bioscience |
| spelling | doaj.art-7a8c6bfae7d44d328e3c5aa2cf51949d2024-01-03T04:36:56ZengAsian-Australasian Association of Animal Production SocietiesAnimal Bioscience2765-01892765-02352024-01-01371162710.5713/ab.23.016525103Heat stress effects on the genetics of growth traits in Thai native chickens (Pradu Hang dum)Wuttigrai Boonkum0Vibuntita Chankitisakul1Srinuan Kananit2Wootichai Kenchaiwong3 Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, ThailandObjective The objective of this study was to investigate the effect of heat stress on the growth traits and genetic parameters of Thai native chickens. Methods A total of 16,487 records for growth traits of Thai native chickens between 2017 and 2022 were used in this study. Data included the body weight at birth, body weight at 4, 8, and 12 weeks of age (BW0, BW4, BW8, BW12), average daily gain during 0 to 4, 4 to 8, and 8 to 12 weeks of age (ADG0–4, ADG4–8, ADG8–12), absolute growth rate at birth, at 4, 8, and 12 weeks of age (AGR0, AGR4, AGR8, AGR12). The repeatability test day model used the reaction-norm procedure to analyze the threshold point of heat stress, rate of decline of growth traits, and genetic parameters. Results At temperature and humidity index (THI) of 76, Thai native chickens began to lose their growth traits, which was the onset of heat stress in this study. The estimated heritability, genetic correlation between animal and heat stress effect, and correlations between the intercept and slope of the permanent environmental effects were 0.27, −0.85, and −0.83 for BW, 0.17, −0.81, and −0.95 for ADG, 0.25, −0.61, and −0.83 for AGR, respectively. Male chickens are more affected by heat stress than female chickens with a greater reduction of BW, ADG, and AGR, values equal to −9.30, −0.23, −15.21 (in males) and −6.04, −0.21, −10.10 (in females) gram per 1 level increase of THI from the THI of 76. Conclusion The influence of thermal stress had a strong effect on the decline in growth traits and genetic parameters in Thai native chickens. This study indicated that genetic models used in conjunction with THI data are an effective method for the analysis and assessment of the effects of heat stress on the growth traits and genetics of native chickens.http://www.animbiosci.org/upload/pdf/ab-23-0165.pdfabsolute growth rateaverage daily gainbody weightheat toleranceindigenous chicken |
| spellingShingle | Wuttigrai Boonkum Vibuntita Chankitisakul Srinuan Kananit Wootichai Kenchaiwong Heat stress effects on the genetics of growth traits in Thai native chickens (Pradu Hang dum) Animal Bioscience absolute growth rate average daily gain body weight heat tolerance indigenous chicken |
| title | Heat stress effects on the genetics of growth traits in Thai native chickens (Pradu Hang dum) |
| title_full | Heat stress effects on the genetics of growth traits in Thai native chickens (Pradu Hang dum) |
| title_fullStr | Heat stress effects on the genetics of growth traits in Thai native chickens (Pradu Hang dum) |
| title_full_unstemmed | Heat stress effects on the genetics of growth traits in Thai native chickens (Pradu Hang dum) |
| title_short | Heat stress effects on the genetics of growth traits in Thai native chickens (Pradu Hang dum) |
| title_sort | heat stress effects on the genetics of growth traits in thai native chickens pradu hang dum |
| topic | absolute growth rate average daily gain body weight heat tolerance indigenous chicken |
| url | http://www.animbiosci.org/upload/pdf/ab-23-0165.pdf |
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