scholarly journals Egg quality of Japanese quail in Serbia (Coturnix coturnix japonica)

2012 ◽  
Vol 28 (3) ◽  
pp. 425-431 ◽  
Author(s):  
Mirjana Djukic-Stojcic ◽  
N. Milosevic ◽  
L. Peric ◽  
I. Jajic ◽  
N. Tolimir
Keyword(s):  
Japanese Quail ◽  
Shell Thickness ◽  
Egg Quality ◽  
Breaking Strength ◽  
Shape Index ◽  
The Other ◽  
Coturnix Japonica ◽  
Egg Mass ◽  
Quality Traits

In the last years Japanese quail (Conturnix coturnix japonica) is becoming more popular as a source of meat and eggs. Information on egg quality characteristics has been limited mostly to chicken eggs. The aim of this paper is to enhance the knowledge on the quality of quail eggs. In this study external and internal quality traits of quail eggs from three different commercial farms will be presented. For egg mass, shape index, shell thickness, shell mass no significant difference was found between farms. For yolk colour, yolk and albumen mass, statistically significant differences were found between the three farms. The difference in shell breaking strength between farms A and B was not significant and significant differences were found between eggs from farm C. Yolk, albumen and shell percentage were in the same relation as the mass of these parameters. The worst albumen quality was recorded in eggs from farm A. The parameters yolk colour, Haugh Unit and egg proportions (albumen, yolk and shell) do not differ between chicken and quail eggs. On the other hand, parameters which differ are egg mass (about five times smaller at quail eggs), shape index, shell breaking strength and shell thickness, which was to be expected. The external and internal egg quality traits of quail eggs from three farms in Serbia do not differ from the results of quality traits from other countries. On the other hand, this investigation contributes the development of science, because it includes some parameters, which have so far not been published in literature by other researchers from this area.

scholarly journals EGG QUALITY TRAITS IN WG, GG AND GL JAPANESE QUAIL POPULATIONS

2019 ◽  
Vol 17 (1) ◽  
pp. 49-55 ◽  
Author(s):  
H. Lukanov ◽  
A. Genchev ◽  
P. Kolev
Keyword(s):  
Japanese Quail ◽  
Shell Thickness ◽  
Egg Quality ◽  
Shape Index ◽  
Egg Mass ◽  
Quality Traits ◽  
Egg Weight ◽  
Poultry Breeding ◽  
Average Shape

The aim of the study was to evaluate egg quality traits in three heavy Japanese quail populations created and reared in the Poultry Breeding Unit of the Trakia University – Bulgaria, marked as WG, GG and GL. In the experiments, 160 female birds from populations WG and GG, and 96 birds from population GL were tested up to the 6th production month. The main egg quality traits were controlled. The highest average egg weight was registered in WG group and the lowest in GL group, 14.04±0.32 g and 12.79±0.29 g respectively (p<0.05). The highest average Shape index was observed in group GG (78.31±0.53%), vs the lowest in WG quails (77.55±0.62%). Albumen proportion is almost 2/3 of egg mass, with average values from 57.14% in group WG tо 59.90% in group GG. Yolk proportion was about 30%, with smaller differences between the groups. The shell share from all tested groups comprised between 10.95 and 12.58% of egg weight. Average shell thickness was the greatest in eggs of WG quails (223.53±5.52 μm), and the lowest – in GG quails (216.91±6.83 μm). Egg quality traits were typical for the meat productive type of Japan quails.

scholarly journals Effect of Different Dietary Electrolyte Balance Values at High Temperature Peaks on Performance and Egg Quality of Japanese Quail (Coturnix coturnix japonica)

2019 ◽  
Vol 28 (4) ◽  
pp. 1234-1239 ◽  
Author(s):  
Marcelo Tadeu Thomaz de Moraes ◽  
Chayane da Rocha ◽  
Tatiane Brandão Moreno ◽  
Diego Surek ◽  
Sebastião Aparecido Borges ◽  
...  
Keyword(s):  
High Temperature ◽  
Japanese Quail ◽  
Egg Quality ◽  
Coturnix Japonica ◽  
Electrolyte Balance ◽  
Coturnix Coturnix Japonica ◽  
Coturnix Coturnix

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 Albumen Quality of Fresh and Stored Table Eggs: Hen Genotype as a Further Chance for Consumer Choice

Animals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 135
Author(s):  
Chiara Rizzi
Keyword(s):  
Environmental Conditions ◽  
Consumer Choice ◽  
Storage Time ◽  
Egg Quality ◽  
Shape Index ◽  
Egg Mass ◽  
Eggshell Thickness ◽  
Dual Purpose ◽  
Commercial Feed

The quality of fresh (1 d) and stored (7–14–21 d, 21 °C) eggs was studied in Italian dual-purpose breeds (Ermellinata di Rovigo (ER), Robusta maculata (RM)) and hybrids (Hy-Line Brown (HB), Hy-Line White36 (HW)), reared outdoors (4 m2/bird) and fed commercial feed. The eggs were analyzed at 4 ages, throughout different seasonal environmental conditions, from summer (31, 35 weeks; 25 °C) until autumn (39, 43 weeks, 15 °C). Each genotype showed significant (p < 0.01) changes in egg quality. In 1 d eggs, the eggshell thickness changed in RM and HW (quadratic), decreased linearly in ER; Haugh Units (HU) changed (ER–cubic) and decreased (hybrids-linear). In 7 d and 14 d eggs, HU linearly (p < 0.01) decreased, except in RM. In 21 d eggs, HU (ER linear decrease; HB, HW quadratic) changed. Significant negative correlations between albumen pH and height were seen in ER (at 1 d, 14 d, 21 d) and HW (at each storage time) eggs, and in RM and HB only in 1 d eggs. RM showed a quite stable albumen quality and a lower total egg mass than ER which showed a more variable albumen quality, due also to a lower eggshell thickness and shape index. The hybrids produced a higher total egg mass than the purebreds and showed an intermediate variation of the egg quality, with an albumen quality higher than those of ER and RM only in 1 d egg, as a result of a higher albumen weight.

scholarly journals Effect of exogenous Phytase on Egg Production and Egg Quality of Spent Hen

2020 ◽  
Vol 20 (1-2) ◽  
pp. 68-76
Author(s):  
MK Bashar ◽  
MAR Howlider ◽  
SM Bulbul
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Shape Index ◽  
Control Group ◽  
Egg Mass ◽  
Feed Conversion ◽  
Shell Weight ◽  
Spent Hen ◽  
Haugh Unit

The present study determined, assessed and quantified the exogenous phytase on egg production and egg quality of spent hens. Ninety laying hens (ISA- Brown) received iso-energetic and iso-nitrogenous diet supplemented with 0, 0.05, 0.1, 0.15 and 0.2 % phytase and reared in cages. Each layer was fed 120g feed/day from 90 to 100 weeks of age. At the inception of the study the spent hen at the age of 90 weeks had an average egg production 65.21 %. Phytase addition in diet increased (p<0.05) egg production  (7.67, 12.17, 12.04 and 15.87 % higher than control group), egg mass output (5.5, 9.34, 7.65 and 12.72 % higher than that of control) and feed conversion, but it did not alter shell weight, shell thickness, shape index, albumen index, Haugh unit, per cent yolk and yolk color. It was concluded that reduced egg production of spent hen at older ages to some extent might have a relationship to decreased availability of phosphorus. The decreased egg production in hens at older ages could be corrected by adding appropriate phytase level in the diet. Thus, it may be possible to extend and prolonged productive life of spent hens by supplying exogenous phytase in diet. However, the effect of availability of phosphorus on egg production using larger population for a longer period may be performed to confirm the findings of the current study. Bangladesh J. of Livestock Res. 20(1-2): 68-76, Jan-Dec 2013

Sign in / Sign up

Export Citation Format

Share Document