The study of candidate genes in the improvement of egg production in ducks – a review

Bello, S. S.; Adeola, Adeniyi C.; Nie, Qinghua

doi:10.1016/j.psj.2022.101850

Cited by 17 publications

(11 citation statements)

References 143 publications

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“…Molecular techniques are one of the significant methods to improve egg production ( Sato et al, 2016 ). Specifically, the identification of a candidate single nucleotide polymorphism ( SNP ) within a gene can be adopted to understand the relationship that exist between a specific gene and quantitative trait loci ( QTL ) ( Bello et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Research Note: Association of single nucleotide polymorphism of AKT3 with egg production traits in White Muscovy ducks (Cairina moschata)

Bello¹,

Xu²,

Li³

et al. 2022

Poultry Science

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Section: Introductionmentioning

confidence: 99%

Research Note: Association of single nucleotide polymorphism of AKT3 with egg production traits in White Muscovy ducks (Cairina moschata)

Bello¹,

Xu²,

Li³

et al. 2022

Poultry Science

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“…Based on marker-assisted breeding selection, their findings could provide promising genes and SNP markers to increase egg production. Based on the importance of the hen's ovary in egg production, numerous studies have been conducted to identify potential candidate genes at the transcriptome level and their spatiotemporal expression profiles at various physiological statuses of hens or egg-laying conditions, as well as SNPs of genes associated with egg production [ 20 ]. Molecular marker genotyping is a common requirement for Quantitative Trait Loci (QTL) mapping and the GWAS approach, and it can be the basis for combining these approaches.…”

Section: Breeding and Genetic Improvement Strategymentioning

confidence: 99%

Advanced Practical Strategies to Enhance Table Egg Production

2022

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The global demand for table eggs has increased exponentially due to the growing human population. To meet this demand, major advances in hen genetics, nutrition, and husbandry procedures are required. Developing cost-effective and practically applicable strategies to improve egg production and quality is necessary for the development of egg industry worldwide. Consumers have shown a strong desire regarding the improvement of hens’ welfare and egg quality. They also become interested in functional and designer foods. Modifications in the nutritional composition of laying hen diets significantly impact egg nutritional composition and quality preservation. According to previous scientific research, enriched egg products can benefit human health. However, producers are facing a serious challenge in optimizing breeding, housing, and dietary strategies to ensure hen health and high product quality. This review discussed several practical strategies to increase egg production, quality, and hens’ welfare. These practical strategies can potentially be used in layer farms for sustainable egg production. One of these strategies is the transition from conventional to enriched or cage-free production systems, thereby improving bird behavior and welfare. In addition, widely use of plant/herbal substances as dietary supplements in layers’ diets positively impacts hens’ physiological, productive, reproductive, and immunological performances.

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“…The roles of SNPs are largely associated with production traits in chicken. SNPs have been detected in follicle-stimulating hormone, prolactin receptor, dopamine receptor 2, lowdensity lipoprotein receptor-related protein, and luteinizing hormone receptors, with characteristic changes in duck and chicken (107,108). For instance, the follicle-stimulating hormone regulates reproductive activities in birds, and the SNP detected in the follicle-stimulating hormone is linked to the reproductive traits of chickens (109).…”

Section: Snp-dependent Resistance and Susceptibility In Chickensmentioning

confidence: 99%

Genetic resilience in chickens against bacterial, viral and protozoal pathogens

Gul

Khan

et al. 2022

Front. Vet. Sci.

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The genome contributes to the uniqueness of an individual breed, and enables distinctive characteristics to be passed from one generation to the next. The allelic heterogeneity of a certain breed results in a different response to a pathogen with different genomic expression. Disease resistance in chicken is a polygenic trait that involves different genes that confer resistance against pathogens. Such resistance also involves major histocompatibility (MHC) molecules, immunoglobulins, cytokines, interleukins, T and B cells, and CD4+ and CD8+ T lymphocytes, which are involved in host protection. The MHC is associated with antigen presentation, antibody production, and cytokine stimulation, which highlight its role in disease resistance. The natural resistance-associated macrophage protein 1 (Nramp-1), interferon (IFN), myxovirus-resistance gene, myeloid differentiation primary response 88 (MyD88), receptor-interacting serine/threonine kinase 2 (RIP2), and heterophile cells are involved in disease resistance and susceptibility of chicken. Studies related to disease resistance genetics, epigenetics, and quantitative trait loci would enable the identification of resistance markers and the development of disease resistance breeds. Microbial infections are responsible for significant outbreaks and have blighted the poultry industry. Breeding disease-resistant chicken strains may be helpful in tackling pathogens and increasing the current understanding on host genetics in the fight against communicable diseases. Advanced technologies, such as the CRISPR/Cas9 system, whole genome sequencing, RNA sequencing, and high-density single nucleotide polymorphism (SNP) genotyping, aid the development of resistant breeds, which would significantly decrease the use of antibiotics and vaccination in poultry. In this review, we aimed to reveal the recent genetic basis of infection and genomic modification that increase resistance against different pathogens in chickens.

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The study of candidate genes in the improvement of egg production in ducks – a review

Cited by 17 publications

References 143 publications

Research Note: Association of single nucleotide polymorphism of AKT3 with egg production traits in White Muscovy ducks (Cairina moschata)

Research Note: Association of single nucleotide polymorphism of AKT3 with egg production traits in White Muscovy ducks (Cairina moschata)

Advanced Practical Strategies to Enhance Table Egg Production

Genetic resilience in chickens against bacterial, viral and protozoal pathogens

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