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

2021 ◽  
Vol 9 (8) ◽  
pp. 1407-1412
Author(s):  
Emine Polat Yurtseven ◽  
Ahmet Şekeroğlu ◽  
Brian Tainika ◽  
Mustafa Duman ◽  
Yunus Emre Şentürk
Keyword(s):  
Production System ◽  
Shell Thickness ◽  
Egg Quality ◽  
Breaking Strength ◽  
Shape Index ◽  
Quality Parameters ◽  
Egg Weight ◽  
Free Range ◽  
Thickness Shell ◽  
Haugh Unit

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.

scholarly journals Quality of eggs from pasture rearing layers of different genotypes

2020 ◽  
Vol 36 (2) ◽  
pp. 181-190
Author(s):  
Zdenka Skrbic ◽  
Milos Lukic ◽  
Veselin Petricevic ◽  
Snezana Bogosavljevic-Boskovic ◽  
Simeon Rakonjac ◽  
...  
Keyword(s):  
Shell Thickness ◽  
Egg Quality ◽  
Egg Yolk ◽  
Vegetation Period ◽  
Shape Index ◽  
Quality Parameters ◽  
Egg Weight ◽  
Naked Neck ◽  
Quality Properties ◽  
Shell Quality

The comparison of physical quality properties of table eggs of commercial hybrid Tetra SL and two native indigenous breeds of hens, Banat Naked Neck and Svrljig hen, was performed in conditions of alternative production in the pasture system in portable cages without the floor. The experiment was conducted during the vegetation period, at the age of hens of 53-57 weeks. In order to produce good quality eggs, the diet was designed with a complete mixture based on maize and soybean. In addition, constant availability of pastures was ensured. Egg sampling was performed in the morning and the initial egg quality was examined based on egg weight, shape index, egg white, egg yolk and shell quality parameters. Layer hens of the commercial hybrid Tetra SL had significantly higher egg weight and better internal egg quality (p<0.01) compared to hens of Banat Naked Neck and Svrljig hens, except for the colour of the yolk, which was more intense in the same feeding and breeding conditions and the age of laying hens, in eggs of native breeds (p<0.01). Native breeds in relation to the commercial hybrid had lighter shell colour (p<0.01). Deformation and egg shell thickness differed (p<0.01) between all three genotypes. The determined rank of layer hen genotypes for shell thickness was: Tetra SL, Banat Naked Neck, Svrljig hen. However, the breaking force was without statistically confirmed difference between hen genotypes.

scholarly journals Egg quality in different lines of New Hampshire and Giriraja chicken

2021 ◽  
Vol 49 (2) ◽  
pp. 108-118
Author(s):  
N Baskota ◽  
M Sharma ◽  
N Bhattrai ◽  
D Neupane ◽  
RK Yadav ◽  
...  
Keyword(s):  
New Hampshire ◽  
Significant Variation ◽  
Shell Thickness ◽  
Egg Quality ◽  
Shape Index ◽  
Quality Parameters ◽  
Quality Parameter ◽  
Egg Weight ◽  
Egg Diameter ◽  
Better Than

This study was undertaken to evaluate the egg quality parameters of New Hampshire and Giriraja by maintaining four different flocks (lines) of New Hampshire viz. NH-Khajura, NH-Parwanipur, NH-Khumaltar and NH-Pokhara and three different flocks (lines) of Giriraja viz. GR-Pakhribas, GR-Khumaltar and GR-Tarhara. The 40-60 weeks of hatchability, fertility, external and internal egg quality parameters were studied and recorded. A total of 200 birds (40 weeks of age) of each New Hampshire and Giriraja from each line were maintained on deep litter system. Results from this study indicated the significant effect of genotype and respective lines on fertility and hatchability of eggs. Significant (P<0.05) variation in fertility and no significant variation in hatchability for genotypes were found. However, in terms of fertility and hatchability, there were significant variations in different lines. In case of egg weight:  no significant (P<0.01) variation was obtained for genotype but lines comparison showed significant variation. Other external egg quality parameters like egg length, egg diameter, shape index, shell thickness were examined for evaluating the genotype and line effect. In all these external egg quality parameters, there were significant (P<0.01) effect of both genotype and lines of birds. For internal egg qualities, yolk weight (g), yolk index, albumen weight and albumen index were checked. Genotype had no significant (P<0.01) effect but lines had significant (P<0.01) effect on yolk weight. In case of yolk index, both genotype and lines of bird had no significant effect. For albumen weight and albumen index, genotype of birds had no significant (P<0.01) effect but lines of bird had significant (P<0.01) effect on both parameters. The study showed that the egg quality parameters of NH (Khajura) were better than that of GR. Among different lines New Hampshire (Khajura) showed better performance in terms of egg quality parameter. Bang. J. Anim. Sci. 2020. 49 (2): 108-118

scholarly journals Effect of Laying Time and Age-Related Change on Egg Characteristics in Brown Layer Pure Lines

2020 ◽  
Vol 8 (11) ◽  
pp. 2498-2506
Author(s):  
Hasan Eleroğlu ◽  
Ahmet Nuri Taşdemir
Keyword(s):  
Shell Thickness ◽  
Egg Quality ◽  
Pure Line ◽  
Shape Index ◽  
Egg Weight ◽  
Age Related ◽  
Colour Parameters ◽  
Egg Shell ◽  
Pure Lines ◽  
Haugh Unit

In this study, the Brown Layer Pure Line that housing as individual cage system at the Poultry Research Institute in Ankara was used. Eggs obtained from 24, 28, 32, 36 and 40 weeks old eggs were collected 3 times a day in the morning (10:00), noon (12:00) and evening (15:00). On a total of 427 eggs; Shape Index (SI), Egg weight (YA, g), Albumen height (AY, mm), Roche scale (RS), Haugh unit (HB), Egg Quality Classes (YKS), Shell strength (KM, N) and Shell thickness (KK, Micron) features are emphasized and colour parameters (L*, a*, b*, Hue, Ch and ΔE) of egg shell were determined. The effect of oviposition time was found significant on the Shape index, Egg weight (g), Haugh unit and Shell thickness (micron) values. However, Albumen height (mm), Egg Quality, Roche scale and Shell strength (N) were not affected by oviposition time. Among the egg shell colour parameters, a*, b*, Hue and Chrome values were affected by the oviposition time, and the calculated difference was found to be statistically significant.

scholarly journals Certain egg quality parameters of gray guinea fowl in extensive rearing

2018 ◽  
Vol 34 (2) ◽  
pp. 207-215
Author(s):  
Marinko Vekic ◽  
Stoja Jotanovic ◽  
Djordje Savic
Keyword(s):  
Shell Thickness ◽  
Egg Quality ◽  
Shape Index ◽  
Quality Parameters ◽  
Guinea Fowl ◽  
Phenotypic Correlation ◽  
Shell Weight ◽  
Egg Weight ◽  
Good Potential

This paper presents results of determination of certain quality parameters and its phenotypic correlation in eggs originated from extensively reared gray variety of Guinea fowl. A total of 150 egg collected by sampling 30 eggs in each of five analyzed laying months were used for egg quality evaluation and statistical analysis by methods of descriptive statistics and simple linear correlation. Average egg weight, shape index and shell thickness was 38.14 g, 76.03% and 0.49 mm, respectively. Average shell, yolk and albumen weight was 5.83, 12.16 and 20.23 g, respectively, and its proportion was 15.23, 32.10 and 52.69%, respectively. Average values of yolk height, diameter, index and color were 16.54 mm, 39.95 mm, 41.50%, and 13.76, whereas values for albumen diameter, index and height as well Haugh units were 59.30 mm, 9.62%, 5.67 mm, and 82.58, respectively. Majority of examined quality parameters showed significant correlation with other parameters. Egg weight was positive correlated (p<0.01) with egg length (0.76) and width (0.92), shape index (0.22), shell thickness (0.60), shell weight (0.81) and proportion (0.44), albumen (0.92) and yolk weight (0.77) and yolk index (0.23), but in negative connection (p<0.01) with yolk proportion (-0.54), yolk/albumen ratio (-0.41) and albumen index (-0.25). Determined egg quality indicated good potential of this species in extensive rearing, which could be improved and used in more favorable rearing conditions.

scholarly journals REPEATABILITY OF EGG NUMBER AND EGG QUALITY TRAITS IN COMMERCIAL PULLETS

2021 ◽  
Vol 21 ◽  
pp. 71-75
Author(s):  
J. C. Okonkwo ◽  
S. N. Ibe
Keyword(s):  
Genetic Gain ◽  
Shell Thickness ◽  
Egg Quality ◽  
Shape Index ◽  
Quality Traits ◽  
Egg Weight ◽  
Egg Number ◽  
Selection For ◽  
Haugh Unit

Repeatability estimates of 0.09 for egg number to 30 weeks of age; 0.67, 0.53, 0.51 0.20 and 0.26 for egg weight (EW), shell thickness (ST), Haugh unit (HU), yolk index (YI) and shape index (SI), respectively, at 22 weeks of age; and 0.85, 0.78, 0.82, 0.49 and 0.62 for the same traits, respectively at 30 weeks of age were obtained in a flock of exotic commercial pullets reared in cages. The expected relative genetic gain per generation of selection for repeated records was inversely related to the magnitude of repeatability. Thus, as laying progressed, repeatability estimates became higher and expected genetic gain from using additional records decreased and fewer records were required to characterize the pullets for inherent transmitting ability. While 4 eggs per hen areconsidered adequate for 22 - week EW, ST and HU, 8 eggs are required for YI and ŞI. The considered numbers of eggs for corresponding traits at 30 weeks are 3 and 4, respectively. Measurements on 10 eggs per hen are required for egg number to 30 weeks.

scholarly journals Effect of different phosphorus levels on the performance and egg quality of laying hens fed wheat- and maize-based diets

2010 ◽  
Vol 55 (No. 10) ◽  
pp. 420-427 ◽  
Author(s):  
M. Skřivan ◽  
M. Englmaierová ◽  
V. Skřivanová
Keyword(s):  
Feed Intake ◽  
Shell Thickness ◽  
Egg Quality ◽  
Negative Impact ◽  
Quality Parameters ◽  
Available Phosphorus ◽  
Egg Weight ◽  
Diet Type ◽  
Phosphorus Levels

The effects of diet type (wheat- or maize-based) and concentration of available phosphorus (AP; about 4, 3 and 2 g/kg) on the parameters of hen performance and egg quality as well as shell calcium (Ca) and phosphorus (P) contents were examined. Two experiments were carried out in which 240 and 120, respectively, older ISA Brown hens were housed in enriched cages. The interaction of diet type and AP concentration was ascertained for all evaluated characteristics except the amount of Ca and P deposited in shells in the first experiment. In the second experiment, the interaction of diet type and AP concentration was found for feed intake, egg weight, shell thickness and weight as well as the albumen quality parameters. Furthermore, Ca deposition in shells increased (P &lt; 0.001) with the wheat diet. Hens fed a maize-based diet (P &lt; 0.001) laid heavier eggs. The highest level of AP (4.1 g/kg) in the wheat-based diet significantly (P &lt; 0.001) decreased albumen height, albumen index and Haugh units (HU). These trends were the same in both experiments. The results indicate that 0.27% AP in wheat-based diet and 0.30% AP in maize-based diet are adequate for hens with the intake 115 g of feed with 3.5% of Ca without a negative impact on performance or egg quality.

scholarly journals Beç Tavuklarında (Numida meleagris) Yumurta Şekil İndeksinin Yumurta Kalitesine Etkileri

2016 ◽  
Vol 4 (9) ◽  
pp. 758 ◽  
Author(s):  
Sezai Alkan ◽  
Taki Karslı ◽  
İsmail Durmuş ◽  
Kemal Karabağ
Keyword(s):  
Surface Area ◽  
Egg Quality ◽  
Shape Index ◽  
Quality Characteristics ◽  
Unit Surface Area ◽  
Egg Volume ◽  
Egg Weight ◽  
Egg Shape ◽  
Unit Surface ◽  
Haugh Unit

The aim of this study was to investigated the effects of the egg shape index on egg quality characteristics in Guinea fowl. For this, the eggs were classified in terms of egg shape index, as ≤ 75, < 76 -77 > and ≥ 78. A total of 100 Guinea fowl eggs were evaluated to determine the egg quality traits ( egg weight, eggshell thickness, eggshell surface area, eggshell weight per unit surface area, eggshell ratio, albumen index, albumen ratio, yolk index, yolk ratio, yolk/albumen ratio, haugh unit and egg volume). In this study, eggshell thickness, eggshell weight per unit surface area, eggshell ratio, albumen index, albumen ratio, yolk index, yolk ratio, yolk/albumen ratio and haugh unit were not significantly affected by egg shape index groups. Whereas egg weight, eggshell surface area and egg volume were significantly affected by egg shape index groups. At the same time, there were found significant relationship between the egg shape index and egg quality traits. Egg shape index was found to be an important factor affecting the egg quality characteristics.

scholarly journals Fertility of Uncontrolled Village Flock Eggs and Comparison of Quality Traits of Table-Eggs Produced in Different Production Systems

2021 ◽  
Vol 9 (2) ◽  
pp. 356-361
Author(s):  
Musa Sarıca ◽  
Kadir Erensoy ◽  
Ayşe İpek Özsoy
Keyword(s):  
Shell Thickness ◽  
Egg Quality ◽  
Production Systems ◽  
Shape Index ◽  
Organic Production ◽  
Internal Quality ◽  
Quality Traits ◽  
Storage Duration ◽  
Free Range ◽  
The Village

In this study, the eggs produced in uncontrolled village conditions were compared to free-range, organic and cage-system in two seasons, in autumn and spring, in terms of external and internal quality traits. In the autumn and spring period, 110 eggs were collected from the village eggs and 50 eggs from other production systems. In order to determine the fertility in the village eggs, 60 eggs were placed in a laboratory type incubator in both seasons and fertility control was made at the 18th day. All data of egg quality traits were performed by taking the average of the two seasons. Egg shape index, shell ratio, shell thickness, shell cleanness, shell defects, albumen and yolk traits differed significantly among production systems (P < 0.05). The lowest shape index, shell thickness and shell cleanness were found in village eggs. Higher shell rates were determined from eggs in cage and organic production compared to others (P < 0.05). The yolk height and yolk index were the lowest and the yolk colors were the darkest in the white cage eggs (P < 0.05). Brown cage eggs showed the better results in the majority of their quality traits. However, they had a higher meat and blood-spot level than other systems. In addition, the presence of cockerels in the village flocks caused the fertile eggs and approximately 85% fertility was obtained. Our results showed that it has become obvious that the village hen and free range hen eggs which can be marketed in high prices compared to the commercial eggs, have no superiority in terms of the traits they are considered. Besides, as they are significantly fertile, especially in hot summer months, according to storage duration and conditions, the probability of embryo development for these eggs has turned to be of high importance for consumption.

scholarly journals Effect of asam kandis (Garcinia cowa Roxb) extract in drinking water on egg quality of Japanese quail (Coturnix coturnix japonica)

2021 ◽  
Vol 6 (1) ◽  
pp. 19-22
Author(s):  
Arif Darmawan ◽  
Widya Hermana ◽  
Muhamad Prastyo Dirgantara
Keyword(s):  
Drinking Water ◽  
Egg Quality ◽  
Shape Index ◽  
Eggshell Thickness ◽  
Egg Weight ◽  
Multiple Test ◽  
Egg Shape ◽  
Garcinia Cowa ◽  
Haugh Unit

Asam kandis  (Garcinia  cowa  Roxb)  fruit has been reported to contain phytochemicals such as xanthon, hydroxy cytric acid and flavonoids that have various activities such as antimicrobial and antioxidant. This study was aimed  to investigate the effect of asam kandis extract addition in drinking water on the quality of quail eggs. Ninety nine laying quails of 59  days of age were divided into 3 treatments and 3 replications with 11 laying quails in each replication. Completely Randomized Design was used and the treatments were: T1= control  (drinking water without asam  kandis extract), T2= drinking water with asam kandis extract at pH 4, T3= drinking water with asam kandis extract at pH 3. The parameters observed were egg weight, egg shape index, yolk color, yolk percentage, albumen percentage, eggshell percentage,  shell thickness, and haugh unit score. The data obtained were analyzed by Analysis of Variance (ANOVA) and significant  differences among treatments means were tested  by Duncans multiple test. The  the addition of asam kandis extract did not affect (P0.05) on egg weight, egg shape index, yolk color, yolk percentage, albumen percentage, eggshell percentage, and haugh unit score. The addition of asam kandis extract in drinking water at pH 3 significantly (P0.05) increased eggshell thickness compare to that of other treatments. The conclusion was the addition of asam kandis extract in drinking water at pH 3 increased eggshell thickness without decreasing egg quality.

scholarly journals The Effect of Genotype and Age of Layer Breeders on Egg Quality Traits

2020 ◽  
Vol 36 (2) ◽  
pp. 228-236
Author(s):  
S. O. Olawumi ◽  
J. T. Ogunlade
Keyword(s):  
Egg Quality ◽  
Shape Index ◽  
Age Effect ◽  
Quality Traits ◽  
Eggshell Thickness ◽  
External Quality ◽  
Egg Weight ◽  
Effect Of Age ◽  
Haugh Unit

The external and internal qualities of 120 eggs (60:60) from Isa Brown (IB) and Bovan Nera (BN) layer breeders were evaluated at 15th and 30th week of their production. The genotypes differed significantly (P<0.09) m external egg quality traits except egg weight and egg length. IB recorded higher values in egg width, eggshell weight, eggshell thickness, shape index and shell ratio than BN, while the reverse trend was for egg length. This implies that IB genotype produced eggs with thicker shells than BN, which invariably will lead to a reduction in the rate of cracks and leakages both on the farm and in the hatchery thereby enhancing better hatchability. The age effect was significant (P<0.05) for all the external egg quality traits. The analysis showed that eggs produced at 30th week were better in terms of external quality traits with the exception of egg shape index. There was positive and significant (P <0.05) interaction effect between genotype and age on eggshell width and shell ratio but not for other traits. As regards internal egg quality traits, the genotypes differed significantly (P<0.05) in all the traits except yolk width, yolk height and albumen weight. IB recorded higher (P<0.05) values in yolk weight, albumen width and yolk ratio than BN, while the latter recorded higher values in albumen height, albumen ratio and haugh unit (HU) than the former The effect of age on internal traits was positive and significant (P<0.05) with the exception f yolk width, albumen width, yolk ratio and albumen ratio. The result showed that the 30th week analyses recorded higher (P<0.05) values in these traits than 15th week. This implies that the quality of breeding eggs improves with the advancing age of the birds. Breed x age interactions were significant for yolk weight and albumen width but not found for other traits. IB genotype was considered the best for external egg quality traits and produced thicker eggshell. However, BN genotype produced superior egg quality than lB having recorded higher values (P< 0.05) in HU, which is a determinant of egg quality

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