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Knaga S, Kasperek K, Luchowska A, Drabik K, Próchniak T, Zięba G, Batkowska J. The relationship between lysozyme gene polymorphism and quality changes during the storage of eggs derived from 2 commercial strains of Japanese quail. Poult Sci 2024; 103:103792. [PMID: 38729073 PMCID: PMC11103425 DOI: 10.1016/j.psj.2024.103792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/08/2024] [Accepted: 04/19/2024] [Indexed: 05/12/2024] Open
Abstract
During the storage irreversible changes occur in eggs that result in a deterioration of their quality. The most significant changes affect the albumen. One of the major proteins of albumen present in egg white is lysozyme, which protects the embryo from microorganisms. This enzyme also contributes to the qualitative characteristics of albumen. It is possible that its polymorphism also affects the quality and stability of the obtained raw material that is, table eggs. Therefore, the aim of this study was to assess the potential effect of polymorphism in the lysozyme gene and protein on the quality changes during the storage of eggs derived from 2 genetic strains of Japanese quail belonging to various utility types. Eggs from selected females of laying and meat-type breeds were stored for 14 wk. During this period the egg quality traits were evaluated 10 times. DNA was isolated from each female and all exons of the lysozyme gene had been sequenced. In total, fourteen SNPs' and one 4-bp indel mutation were identified in exons and adjacent intronic sequences, among which SNP1 (1:32140723) resulted in a substitution of lysine with glutamine (Q21K). The results showed that SNP1 (strain S22), as well as the SNP2, SNP5, SNP7, SNP8, SNP10, SNP11, SNP12 and SNP13 were significantly associated with breaking strength during egg storage in both investigated Japanese quail strains. Furthermore, a 3 haplotype blocks containing nine SNPs (2, 5, 6, 7, 8, 10, 11, 12 and 13) were identified. These blocks displayed 8 distinct haplotypes that had significant association with breaking strength at all storage time points where egg quality analyses were performed. The study also revealed significant effects of breed and storage time on the egg quality traits. These results provide new insights into the genetic basis of egg quality during storage and could be incorporated into the breeding programs involving these strains.
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Affiliation(s)
- S Knaga
- Department of Animal Biotechnology and Genetics, Bydgoszcz University of Science and Technology, Bydgoszcz 85-084, Poland
| | - K Kasperek
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, Lublin 20-950, Poland
| | - A Luchowska
- Student Research Circle of Dentofacial Orthopedics and Orthodontics, Poznan University of Medical Sciences, Poznan 60-812, Poland
| | - K Drabik
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, Lublin 20-950, Poland
| | - T Próchniak
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, Lublin 20-950, Poland
| | - G Zięba
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, Lublin 20-950, Poland
| | - J Batkowska
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, Lublin 20-950, Poland.
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Yang S, Deng H, Zhu J, Shi Y, Luo J, Chen T, Sun J, Zhang Y, Xi Q. Organic Trace Elements Improve the Eggshell Quality via Eggshell Formation Regulation during the Late Phase of the Laying Cycle. Animals (Basel) 2024; 14:1637. [PMID: 38891684 PMCID: PMC11170995 DOI: 10.3390/ani14111637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
The quality of eggshells is critical to the egg production industry. The addition of trace elements has been shown to be involved in eggshell formation. Organic trace elements have been found to have higher biological availability than inorganic trace elements. However, the effects of organic trace elements additive doses on eggshell quality during the laying period of commercial laying hens required further investigation. This experiment aims to explore the potential mechanisms of different doses of organic trace elements replacing inorganic elements to remodel the eggshell quality of egg-laying hens during the laying period. A total of 360 healthy hens (Lohmann Pink, 45-week-old) were randomly divided into four treatments, with six replications per treatment and 15 birds per replication. The dietary treatments included a basal diet supplemented with inorganic iron, copper, zinc and manganese at commercial levels (CON), a basal diet supplemented with organic iron, copper, zinc and manganese at 20% commercial levels (LOT), a basal diet supplemented with organic iron, copper, zinc and manganese at 30% commercial levels (MOT), and a basal diet supplemented with organic iron, copper, zinc and manganese at 40% commercial levels (HOT). The trial lasted for 8 weeks. The results of the experiment showed that the replacement of organic trace elements did not significantly affect the production performance of laying hens (p > 0.05). Compared with inorganic trace elements, the MOT and HOT groups improved the structure of the eggshells, enhanced the hardness and thickness of the eggshells, increased the Haugh unit of the eggs, reduced the proportion of the mammillary layer in the eggshell, and increased the proportion of the palisade layer (p < 0.05). In addition, the MOT and HOT groups also increased the enzyme activity related to carbonate transport in the blood, the expression of uterine shell gland-related genes (CA2, OC116, and OCX32), and the calcium and phosphorus content in the eggshells (p < 0.05). We also found that the MOT group effectively reduced element discharge in the feces and enhanced the transportation of iron (p < 0.05). In conclusion, dietary supplementation with 30-40% organic micronutrients were able to improve eggshell quality in aged laying hens by modulating the activity of serum carbonate transport-related enzymes and the expression of eggshell deposition-related genes.
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Affiliation(s)
- Songfeng Yang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, No. 483 Wushan Road, Guangzhou 510642, China; (S.Y.); (H.D.); (J.Z.); (Y.S.); (J.L.); (T.C.); (J.S.)
- Guangdong Xingtengke Biotechnology Co., Ltd., Zhaoqing 526000, China
| | - Haibin Deng
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, No. 483 Wushan Road, Guangzhou 510642, China; (S.Y.); (H.D.); (J.Z.); (Y.S.); (J.L.); (T.C.); (J.S.)
| | - Jiahao Zhu
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, No. 483 Wushan Road, Guangzhou 510642, China; (S.Y.); (H.D.); (J.Z.); (Y.S.); (J.L.); (T.C.); (J.S.)
| | - Yiru Shi
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, No. 483 Wushan Road, Guangzhou 510642, China; (S.Y.); (H.D.); (J.Z.); (Y.S.); (J.L.); (T.C.); (J.S.)
| | - Junyi Luo
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, No. 483 Wushan Road, Guangzhou 510642, China; (S.Y.); (H.D.); (J.Z.); (Y.S.); (J.L.); (T.C.); (J.S.)
| | - Ting Chen
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, No. 483 Wushan Road, Guangzhou 510642, China; (S.Y.); (H.D.); (J.Z.); (Y.S.); (J.L.); (T.C.); (J.S.)
| | - Jiajie Sun
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, No. 483 Wushan Road, Guangzhou 510642, China; (S.Y.); (H.D.); (J.Z.); (Y.S.); (J.L.); (T.C.); (J.S.)
| | - Yongliang Zhang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, No. 483 Wushan Road, Guangzhou 510642, China; (S.Y.); (H.D.); (J.Z.); (Y.S.); (J.L.); (T.C.); (J.S.)
| | - Qianyun Xi
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, No. 483 Wushan Road, Guangzhou 510642, China; (S.Y.); (H.D.); (J.Z.); (Y.S.); (J.L.); (T.C.); (J.S.)
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Wengerska K, Batkowska J, Drabik K. The eggshell defect as a factor affecting the egg quality after storage. Poult Sci 2023; 102:102749. [PMID: 37220686 DOI: 10.1016/j.psj.2023.102749] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/19/2023] [Accepted: 04/19/2023] [Indexed: 05/25/2023] Open
Abstract
The aim of the study was to assess the influence of shell defects on the quality of eggs after storage. The study material consisted of 1,800 brown-shelled eggs from cage rearing system which were candled on the day of laying to determine the shell quality. Eggs with the 6 most common shell defects (external crack, severe stripe marks, points, wrinkled, pimples, sandy) and eggs without defects (control group) were then stored for 35 days at 14°C and 70% humidity. The weight loss of eggs was monitored every 7 days, and the quality characteristics of whole eggs (weight, specific gravity, shape), shell (defects, strength, color, weight, thickness, density), albumen (weight, height, pH) and yolk (weight, color, pH) of 30 eggs from each group were analysed at the beginning (0 days) and after 28 and 35 days of storage. The changes resulting from water loss (air cell depth, weight loss, shell permeability) were also evaluated. The study showed that all investigated shell defects significantly influenced the characteristics of the whole egg during the storage, modifying traits such as specific gravity, water loss, shell permeability, albumen height and pH, as well as proportion, index and pH of the yolk. Furthermore, an interaction between time and the shell defects presence was found.
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Affiliation(s)
- Karolina Wengerska
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, 13 Akademicka St., 20-950 Lublin, Poland
| | - Justyna Batkowska
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, 13 Akademicka St., 20-950 Lublin, Poland.
| | - Kamil Drabik
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, 13 Akademicka St., 20-950 Lublin, Poland
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Hamilton RMG. A comparison of the various equations published for the estimation of characteristics of hen’s eggs, the importance of reporting the compression rate for shell strength measurements, and distinction between egg specific gravity and density. WORLD POULTRY SCI J 2022. [DOI: 10.1080/00439339.2022.2026202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- R. M. G. Hamilton
- Bedford, Nova Scotia, Canada (Formerly, Atlantic Food and Horticulture Research Centre, Agriculture and Agri-Food Canada, Kentville, Canada)
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Wijayawardana D, Prabashwari T, Vidanarachchi J, Himali S. Development of a Spent Cinnamon Bark Incorporated Egg Box and Analysis of Its Effectiveness on Internal Quality Characteristics of Chicken Eggs. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- D.A.H.D Wijayawardana
- Department of Animal Science, Faculty of Agriculture University of Peradeniya Peradeniya Sri Lanka
| | - T.I.G Prabashwari
- Department of Animal Science, Faculty of Agriculture University of Peradeniya Peradeniya Sri Lanka
| | - J.K Vidanarachchi
- Department of Animal Science, Faculty of Agriculture University of Peradeniya Peradeniya Sri Lanka
| | - S.M.C Himali
- Department of Animal Science, Faculty of Agriculture University of Peradeniya Peradeniya Sri Lanka
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