N Nasirzadeh, M J Zamiri, A Akhlaghi, S Ghovvati, S Kargar, J Amini
{"title":"LED光谱和光周期对肉种鸡生产性能、骨骼特性及相关基因表达的影响","authors":"N Nasirzadeh, M J Zamiri, A Akhlaghi, S Ghovvati, S Kargar, J Amini","doi":"10.1080/00071668.2024.2425627","DOIUrl":null,"url":null,"abstract":"<p><p>1. Lighting is a crucial environmental factor in poultry production. This study evaluated the effects of light-emitting diodes (LED) on performance and several bone characteristics, including bone mineralisation, morphometry, histology and selected gene expression in broiler breeders.2. A total of 800 one-d-old female broiler breeder chickens (Ross 308) were randomly allocated to one of 20 light-proof pens and reared under green (GL) or white (WL) LED light for two photophases (8 or 12 h) in a 2 × 2 factorial experiment and compared to a control group (incandescent lamp at 8 L:16D duration; CON). Weight gain, feed consumption and feed conversion ratio (FCR) were calculated. Femoral and tibial characteristics were measured.3. The LED colour affected feed intake during the rearing period, being higher for birds under white compared to green light. Tibial calcium (Ca) concentration in WL birds was lower than for green LED lighting regimens but not different from the CON group (<i>p</i> ≤ 0.05). Birds under 12 h lighting had greater tibia bone dry matter and trabecular separation (mm) than those in the 8 h groups. However, bone volume fraction and trabecular number per mm in 8 h birds were higher than in 12 h groups (<i>p</i> ≤ 0.01). There was greater expression of the <i>osteocalcin</i> gene under WL compared with CON. <i>Osteopontin</i> expression in WL8 was 4.63 times greater than in the CON group (<i>p</i> ≤ 0.05). The <i>alkaline phosphatase</i> gene expression in WL12 was higher than in the CON group (<i>p</i> ≤ 0.05).4. Exposure to white and green LED spectra enhanced bone gene expression and mineralisation, respectively, without adverse effects on bird performance. Thus, LED light may be beneficial to broiler breeder bone traits.</p>","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-9"},"PeriodicalIF":1.6000,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Influence of LED light spectra and photoperiods on performance, bone characteristics and related genes expression in broiler breeders.\",\"authors\":\"N Nasirzadeh, M J Zamiri, A Akhlaghi, S Ghovvati, S Kargar, J Amini\",\"doi\":\"10.1080/00071668.2024.2425627\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>1. Lighting is a crucial environmental factor in poultry production. This study evaluated the effects of light-emitting diodes (LED) on performance and several bone characteristics, including bone mineralisation, morphometry, histology and selected gene expression in broiler breeders.2. A total of 800 one-d-old female broiler breeder chickens (Ross 308) were randomly allocated to one of 20 light-proof pens and reared under green (GL) or white (WL) LED light for two photophases (8 or 12 h) in a 2 × 2 factorial experiment and compared to a control group (incandescent lamp at 8 L:16D duration; CON). Weight gain, feed consumption and feed conversion ratio (FCR) were calculated. Femoral and tibial characteristics were measured.3. The LED colour affected feed intake during the rearing period, being higher for birds under white compared to green light. Tibial calcium (Ca) concentration in WL birds was lower than for green LED lighting regimens but not different from the CON group (<i>p</i> ≤ 0.05). Birds under 12 h lighting had greater tibia bone dry matter and trabecular separation (mm) than those in the 8 h groups. However, bone volume fraction and trabecular number per mm in 8 h birds were higher than in 12 h groups (<i>p</i> ≤ 0.01). There was greater expression of the <i>osteocalcin</i> gene under WL compared with CON. <i>Osteopontin</i> expression in WL8 was 4.63 times greater than in the CON group (<i>p</i> ≤ 0.05). The <i>alkaline phosphatase</i> gene expression in WL12 was higher than in the CON group (<i>p</i> ≤ 0.05).4. Exposure to white and green LED spectra enhanced bone gene expression and mineralisation, respectively, without adverse effects on bird performance. 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Influence of LED light spectra and photoperiods on performance, bone characteristics and related genes expression in broiler breeders.
1. Lighting is a crucial environmental factor in poultry production. This study evaluated the effects of light-emitting diodes (LED) on performance and several bone characteristics, including bone mineralisation, morphometry, histology and selected gene expression in broiler breeders.2. A total of 800 one-d-old female broiler breeder chickens (Ross 308) were randomly allocated to one of 20 light-proof pens and reared under green (GL) or white (WL) LED light for two photophases (8 or 12 h) in a 2 × 2 factorial experiment and compared to a control group (incandescent lamp at 8 L:16D duration; CON). Weight gain, feed consumption and feed conversion ratio (FCR) were calculated. Femoral and tibial characteristics were measured.3. The LED colour affected feed intake during the rearing period, being higher for birds under white compared to green light. Tibial calcium (Ca) concentration in WL birds was lower than for green LED lighting regimens but not different from the CON group (p ≤ 0.05). Birds under 12 h lighting had greater tibia bone dry matter and trabecular separation (mm) than those in the 8 h groups. However, bone volume fraction and trabecular number per mm in 8 h birds were higher than in 12 h groups (p ≤ 0.01). There was greater expression of the osteocalcin gene under WL compared with CON. Osteopontin expression in WL8 was 4.63 times greater than in the CON group (p ≤ 0.05). The alkaline phosphatase gene expression in WL12 was higher than in the CON group (p ≤ 0.05).4. Exposure to white and green LED spectra enhanced bone gene expression and mineralisation, respectively, without adverse effects on bird performance. Thus, LED light may be beneficial to broiler breeder bone traits.
期刊介绍：
From its first volume in 1960, British Poultry Science has been a leading international journal for poultry scientists and advisers to the poultry industry throughout the world. Over 60% of the independently refereed papers published originate outside the UK. Most typically they report the results of biological studies with an experimental approach which either make an original contribution to fundamental science or are of obvious application to the industry. Subjects which are covered include: anatomy, embryology, biochemistry, biophysics, physiology, reproduction and genetics, behaviour, microbiology, endocrinology, nutrition, environmental science, food science, feeding stuffs and feeding, management and housing welfare, breeding, hatching, poultry meat and egg yields and quality.Papers that adopt a modelling approach or describe the scientific background to new equipment or apparatus directly relevant to the industry are also published. The journal also features rapid publication of Short Communications. Summaries of papers presented at the Spring Meeting of the UK Branch of the WPSA are published in British Poultry Abstracts .
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