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http://dx.doi.org/10.5536/KJPS.2018.45.1.63

Effects of Age of Laying Hens on Internal and External Quality of Eggs  

Kim, Dong Jun (Korea Institute for Animal Products Quality Evaluation)
Kim, Da Hye (Department of Animal Science and Technology, College of Animal Bioscience and Technology, Konkuk University)
Kang, Se Joo (Korea Institute for Animal Products Quality Evaluation)
Kwon, Ki Mun (Korea Institute for Animal Products Quality Evaluation)
Lee, Jae Cheong (Korea Institute for Animal Products Quality Evaluation)
Lee, Kyung-Woo (Department of Animal Science and Technology, College of Animal Bioscience and Technology, Konkuk University)
Publication Information
Korean Journal of Poultry Science / v.45, no.1, 2018 , pp. 63-71 More about this Journal
Abstract
This study was conducted to evaluate the effect of age of laying hens on egg internal and external qualities. A total of 8,300 eggs were randomly collected from 15 grading & packaging (GP) centers, and 50 eggs per farm during April to May in 2015. Age of laying hens ranged from 18 to 65 weeks of age and they were classified into 5 age groups (18~25, 26~35, 36~45, 46~55, and 56~65 weeks). Egg weight increased, but the Haugh unit decreased as the age of laying hens increased. Yolk color was higher in eggs laid from 25~35 weeks of laying hens compared with that of 18~25-weeks-old chickens. The incidence of dirty eggs was highest (P<0.05) in 18~25 week group and remained constant after 26 weeks. Among eggshell defects, speckled and pimpled eggs increased as the age of laying hens increased. The incidence of calcium deposits and misshapen eggs was highest during 18~25 weeks of age and remained constant after 26 weeks. The percentage of total eggshell cracks increased as the age of laying hens increased. Among eggshell cracks, star- and hair-like cracks were frequently noted. The percentage of meat spot was higher than that of blood spot and their incidence was highest among the 56~65 week group. Age of laying hens significantly increased egg weight, incidence of pimpled or speckled eggs, star- or hair-like cracks, and meat spot. On the other hand, a significant negative interaction between age of laying hens and the Haugh unit was noted. In conclusion, our study revealed that the age of laying hens affected internal and external egg qualities.
Keywords
eggs; laying hens; egg qualities;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 Hess JB, Britton WM 1989 The effect of dietary chloride or protein changes on eggshell pimpling and shell quality in late production Leghorn hens. Nutrition Report International 40:1107-1115.
2 Keener KM, McAvoy KC, Foegeding JB, Curtis PA, Anderson KE, Osborne JA 2006 Effect of testing temperature on internal egg quality measurements. Poultry Science 85:550-555.   DOI
3 Kim CH, Song JH, Lee JC, Lee KW 2014 Age-related changes in egg quality of Hy-line Brown hens. International Journal of Poultry Science 13:510-514.   DOI
4 Kim DJ, Lim SS 2015. A measure of improvement of the shell egg grading system. Korean Journal of Poultry Science 42:223-230.   DOI
5 Kim HS, Kim SM, Noh JJ, Lee JI, Lee HJ, Jo C 2012. Effect of age of laying hens and grade of egg shell abnormality on internal egg quality. Journal of Animal Science and Technology 54:43-49.   DOI
6 Lang MR, Wells JW 1987 A review of egg shell pigmentation. World's Poultry Science Journal 42:238-246.
7 Lee JC, Kim SH, Sun CW, Kim CH, Jung S, Lee JH, Jo C 2013. Comparison of principle components and internal quality of eggs by age of laying hens and weight standard. Korean Journal of Poultry Science 40:49-55.   DOI
8 MAFRA 2017 Agriculture, Food and Rural Affairs Statistics Yearbook. Ministry of Agriculture, Food and Rural Affairs.
9 Mazzuco H, Bertechini AG 2014 Critical points on egg production: Causes, importance and incidence of eggshell breakage and defects. Ciencia e Agrotecnologia 38:7-14.   DOI
10 Miranda JM, Anton X, Redondo-Valbuena C, Roca-Saavedra P, Rodriguez JA, Lamas A, Franco CM, Cepeda A 2015 Egg and egg-derived foods: effects on human health and use as functional foods. Nutrients 7:706-729.   DOI
11 Odabasi AZ, Miles RD, Balaban MO, Portier KM 2007 Changes in brown eggshell color as the hen ages. Poultry Science 86:356-363.
12 Tumova E, Gous RM 2012 Interaction of hen production type, age, and temperature on laying pattern an egg qualtiy. Poultry Science 91:1269-1275.   DOI
13 Roberts JR, Chousalkar K, Samiullah 2013 Egg quality and age of laying hens: implications for product safety. Animal Production Science 53:1291-1297.
14 Roland DA 1979 Factors influencing shell quality of aging hens. Poultry Science 58:774-777.   DOI
15 Samiullah S, Omar AS, Roberts J, Chousalkar K 2017 Effect of production system and flock age on eggshell and egg internal quality measurements. Poultry Science 96:246-258.   DOI
16 Samiullah S, Roberts JR, Chousalkar KK 2014 Effect of production system and flock age on egg quality and total bacteria load in commercial laying hens. Journal of Applied Poultry Research 23:59-70.   DOI
17 Tumova E, Englmaierova M, Ledvinka Z, Charvatova V 2011 Interaction between housing system and genotype in relation to internal and external egg quality parameters. Czech Journal of Animal Science 56:490-498.   DOI
18 USDA 1987 27th Random sample laying test. Report of egg production tests in United States and Canada. USDA, Agricultural Research Service, Washington, DC.
19 Wolc A, Arango J, Settar P, O'Sullivan NP, Olori VE, White IMS, Hill WG, Dekkers JCM 2012 Genetic parameters of egg defects and egg quality in layer chickens. Poultry Science 91:1292-1298.   DOI
20 Zaheer K 2015 An updated review on chicken eggs: production, consumption, management aspect and nutritional benefits to human health. Food and Nutrition Sciences 6: 1208-1220.   DOI
21 Zita L, Ledvinka Z, Tumova E, Klesalova L 2009 Technological quality of eggs in relation to the age of laying hens and Japanese quails. Revista Brasileira De Zootecnia 41:2079-2087.
22 Hamilton RMG, Hollands KG, Voisey PW, Grunder AA 1979 Relationship between eggshell quality and shell breakage and factors that affect shell breakage in the field-a review. Worlds Poultry Science Journal 35:177-190.   DOI
23 Mallet S, Guesdon V, Ahmed AMH, Nys Y 2006 Comparison of eggshell hygiene in two housing systems: Standard and furnished cages. British Poultry Science 47:30-35.   DOI
24 Bain MM 2005 Recent advances in the assessment of eggshell quality and their future application. Worlds Poultry Science Journal 61:268-277.   DOI
25 Campo JL, Garcia Gil M 1998 Internal inclusions in brown eggs: relationships with fearfullness and stress. Poultry Science 77:1743-1747.   DOI
26 Chukwuka OK, Okoli IC, Okeudo NJ, Udedibie ABI, Ogbuewu IP, Aladi NO, Iheshiulor OOM, Omede AA 2011 Egg quality defects in poultry management and food safety. Asian Journal of Agricultural Research 5:1-16.   DOI
27 Curtis PA, Kerth LK, Anderson KE 2005 Quality and compositional characteristics of layer hens as affected by bird age. XIth European Symposium on the Quality of Eggs and Egg Products. Doorwerth, The Netherlands.