Relation between egg shape index and egg quality characteristics

Duman, Muhsine; Şekeroğlu, Ahmet; Yıldırım, Arda; Eleroğlu, Hasan; Camcı, Ömer

doi:10.1399/eps.2016.117

Cited by 80 publications

(80 citation statements)

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“…Sokołowicz et al (2019) reported that there was a significant effect of hen genotype on shape index. The significant effect of age on shape index could be associated with increasing egg weight and a statistically significant positive correlation between egg weight and shape index has been reported by Duman et al (2016).…”

Section: Discussionmentioning

confidence: 83%

Effect of Production System and Age on Egg Quality Parameters: A Case of Niğde Province Çamardı District, Turkey

Yurtseven

Şekeroğlu

Tainika

et al. 2021

Turkish JAF Sci.Tech.

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This study compared egg quality parameters in layers under free-range system with prefabricated pens and backyard while emphasizing hen age. A total of 300 eggs collected from prefabricated pens and backyard farming families in the Çamardı District of Niğde Province were used as study materials. The assessed external and internal egg quality characteristics included egg weight, shape index, shell thickness, shell breaking strength, albumen index, Haugh unit, yolk index, and yolk colour. The effect of production system on albumen index, Haugh unit, and yolk colour score was found statistically significant. There was a significant effect of age on shape index, shell thickness, shell breaking strength, albumen index, Haugh Unit, yolk index, and yolk colour score. The effect of interaction between age and production system was statistically significant for shape index, shell thickness, yolk index, Haugh Unit, and yolk colour score. It was determined that the egg`s meat and blood spots percentages from the free-range and backyard systems were 10.6% and 15.3%, respectively. It was concluded that while eggs produced from free-range system are superior in terms of egg weight, shape index, and Haugh unit those obtained from backyard hens are higher in eggshell thickness, eggshell breaking strength, and egg yolk colour.

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Section: Discussionmentioning

confidence: 83%

Effect of Production System and Age on Egg Quality Parameters: A Case of Niğde Province Çamardı District, Turkey

Yurtseven

Şekeroğlu

Tainika

et al. 2021

Turkish JAF Sci.Tech.

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“…The additional MDW on the treatments generally decreases SI, shell weight and shell thickness compared to treatments without MDW. SI is classified into 3 groups that are round egg (SI > 76), standard egg (SI = 72-76), and sharp egg (SI < 72) (Duman et al, 2016). Roberts (2004) reported that the eggshell of eggs contains up to 3 g of calcium.…”

Section: Resultsmentioning

confidence: 99%

The Effect of Phytobiotics Supplementation and Magnetized Drinking Water on Production Performance and Egg Quality of Laying Hens

Marwi

Sjofjan

Mutaqin

et al. 2021

JITEK

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The experiment was conducted to evaluate the production performance and egg quality of laying hens supplemented with phytobiotics and magnetized drinking water. This experiment used 2700 gauss level in Magnetized Drinking Water (MDW). The phytobiotics had two form: the non-encapsulated phytobiotics (PTO) and encapsulated phytobiotics (EPTO). There were untreated water (control) and the treated water (MDW, PTO, PTO+MDW, EPTO, EPTO+MDW). The treatments were presented by 0.6% for each treatment. The result showed highly significant (p<0.01) improvement on feed conversion ratio (FCR) but no significant effect on other production performance variables including feed intake, hen day production (HDP), egg mass, and income over feed cost (IOFC). The results indicated a highly significant improvement (p<0.01) on egg weight and yolk cholesterol. There were no significant effects on shape index (SI), shell weight, shell thickness, Haugh unit (HU), albumen height, yolk weight, yolk index (YI), and yolk color of egg quality variables. It was concluded that the encapsulated form (EPTO and EPTO+MDW) had the best improvement on FCR and yolk cholesterol, on another hand the non-encapsulated form (PTO and PTO+MDW) increased the egg weight of laying hens

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“…Egg quality contains a number of characteristics, related to the yolk, the albumen and the shell, be divided into internal and external egg quality (Roberts 2004;Duman et al 2016). Egg quality is not only an important indicator for nutritional value, but it is also important for consumer appeal, egg price, hatchability performance, etc (Li et al 2018;Duru et al 2017;Blanco et al 2014;Hrnčár et al 2014;Zaheer 2015;Adedeji et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Study On Laying Performances, Blood Biochemical Indicators, Feather Condition And Antibody Titers of Layer Breeders Among Different Tiers In Mating Cages During The Peak Laying Period*

Li¹,

Ma²,

Wan³

et al. 2021

Preprint

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The present study was conducted to determine the effect of cage tier on laying performances, blood biochemical indicators, feather condition and antibody titers of layer breeders among different tiers in mating cages during the peak laying period. All birds (Hy-Line Brown parent stock breeders) at 27 weeks of age were housed in 4-tier mating cage. Laying performances, egg quality characteristics, blood biochemical indicators, antibody titers and feather condition were measured. The highest laying rate was recorded at 2nd tier, followed by 4th tier and 3rd tier, and the lowest at 1st tier. There were no significant differences among different tiers in terms of percentage of defective eggs and hatchability performances. Yolk color was significantly lower at 2nd tier than at other tiers. However, no distinct differences in egg weight, shell weight, shell color, shell breaking strength, egg shape index, yolk weight, albumen height, haugh units were observed. Concentrations of serum CK, T-AOC, SOD, GPx and MDA, and the antibody titers did not change substantially among different tiers. Moreover, the average feather score for each individual part of the body and an overall average score for birds were not significantly different. We confidently conclude that cage tier may be a contributing factor for layer performances. These findings will be helpful for application of natural mating system in layer industry.

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Relation between egg shape index and egg quality characteristics

Cited by 80 publications

References 0 publications

Effect of Production System and Age on Egg Quality Parameters: A Case of Niğde Province Çamardı District, Turkey

Effect of Production System and Age on Egg Quality Parameters: A Case of Niğde Province Çamardı District, Turkey

The Effect of Phytobiotics Supplementation and Magnetized Drinking Water on Production Performance and Egg Quality of Laying Hens

Study On Laying Performances, Blood Biochemical Indicators, Feather Condition And Antibody Titers of Layer Breeders Among Different Tiers In Mating Cages During The Peak Laying Period*

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