Continuous exposure to red light induces photorefractoriness in broiler breeder pullets

Hanlon, Charlene; Zuidhof, M. J.; Rodriguez, Adriana; Takeshima, Kayo; Bédécarrats, Grégoy Y.

doi:10.1016/j.psj.2023.102542

Cited by 3 publications

(1 citation statement)

References 63 publications

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“…Thus, while broilers are the end product intended for consumption, broiler breeders are the foundation of the poultry meat supply chain, ensuring the continuity of broiler production through the generation of fertile eggs. There have been a few studies investigating strategies for rearing broiler breeders, for example, environmental enhancements ( Arrazola et al, 2019 ; Hanlon et al, 2023 ) and dietary macronutrient manipulation ( Van Emous et al, 2015 ; Gous and Danisman, 2016 ; De Los Mozos et al, 2017 ; Amoozmehr et al, 2023 ). Investigations on the role of functional feed ingredients and nutrients are still nascent.…”

Section: Discussionmentioning

confidence: 99%

Response of broiler breeder pullets when fed hydrolyzed whole yeast from placement to 22 wk of age

Maina,

Schulze,

Kiarie

2024

Poultry Science

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Section: Discussionmentioning

confidence: 99%

Response of broiler breeder pullets when fed hydrolyzed whole yeast from placement to 22 wk of age

Maina,

Schulze,

Kiarie

2024

Poultry Science

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Influence of LED light spectra and photoperiods on performance, bone characteristics and related genes expression in broiler breeders

Nasirzadeh,

Zamiri,

Akhlaghi

et al. 2024

British Poultry Science

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Integrated Transcriptomic–Metabolomic Analysis Reveals the Effect of Different Light Intensities on Ovarian Development in Chickens

Zhou,

Xu,

Fang

et al. 2024

IJMS

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Light is a key environmental factor regulating reproduction in avians. However, the mechanism of light intensity regulating ovarian development is still unclear. In this study, 5-week-old (5 wk) partridge broiler breeders were randomly divided into a low-light-intensity group (LL group) and a natural-light-intensity group (NL group) (n = 100). In the rearing period (5 wk to 22 wk), the light intensity of the LL group and NL group were 0.41 ± 0.05 lux and 45.39 ± 1.09 lux, and in the laying period (23 wk to 32 wk) they were 23.92 ± 0.06 lux and 66.93 ± 0.76 lux, respectively. Samples were collected on 22 wk and 32 wk. The results showed that the LL group had a later age at first egg and a longer laying period than the NL group. Serum P4 and LH levels in the LL group were higher than in the NL group on 22 wk (p < 0.05). On 32 wk, P4, E2, LH and FSH levels in the LL group were lower than in the NL group (p < 0.05). Ovarian transcriptomics and metabolomics identified 128 differentially expressed genes (DEGs) and 467 differential metabolites (DMs) on 22 wk; 155 DEGs and 531 DMs on 32 wk between two groups. An enrichment analysis of these DEGs and DMs identified key signaling pathways, including steroid hormone biosynthesis, neuroactive ligand-receptor interaction. In these pathways, genes such as CYP21A1, SSTR2, and NPY may regulate the synthesis of metabolites, including tryptamine, triglycerides, and phenylalanine. These genes and metabolites may play a dominant role in the light-intensity regulation of ovarian development and laying performance in broiler breeders.

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Continuous exposure to red light induces photorefractoriness in broiler breeder pullets

Cited by 3 publications

References 63 publications

Response of broiler breeder pullets when fed hydrolyzed whole yeast from placement to 22 wk of age

Response of broiler breeder pullets when fed hydrolyzed whole yeast from placement to 22 wk of age

Influence of LED light spectra and photoperiods on performance, bone characteristics and related genes expression in broiler breeders

Integrated Transcriptomic–Metabolomic Analysis Reveals the Effect of Different Light Intensities on Ovarian Development in Chickens

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