scholarly journals Effects of Laying Cycle Periods on Egg Quality, Egg Chemical Composition, and Reproductive Performance of Japanese Quail Breeders Reared in Northern Algeria

2021 ◽  
Vol 11 (3) ◽  
pp. 439-447
Author(s):  
Zahra Berrama ◽  
Samir Souames ◽  
Rachid Merati ◽  
Hakima Mefti Korteby ◽  
Manel S. Chirane ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Japanese Quail ◽  
Egg Quality ◽  
Shape Index ◽  
Internal Quality ◽  
Total Protein Content ◽  
Embryo Survival ◽  
Peak Period ◽  
Egg Components

Egg quality traits in quail breeders depend on various factors which may influence embryo survival during incubation, affecting the chicks' production and quality. The current study aimed to determine the effect of the laying period on the external and internal quality of the egg, the chemical composition of albumen, yolk, and eggshell as well as the reproductive parameters of quail breeders. A total of 450 quails (Coturnix japonica) obtained from the same hatchery, were reared in a battery cage with a sex ratio of 1 male to 3 females. All the quails were subjected to standard breeding conditions and fed a balanced laying diet. A total of 960 eggs were collected at two different periods of the laying cycle, the beginning period of the laying (BP indicating 10 weeks of quail age) and the peak period of laying (PP showing 20 weeks of quail age). At each laying period, 30 eggs were used to analyze the various parameters of egg quality, and 450 eggs were randomly selected to assess the reproductive performances. Overall, no differences in the external quality of eggs, such as egg length, egg width, and the egg shape index, were recorded between the two laying periods. Apart from albumen weight that tended to be higher at the peak laying period, the shell and the yolk weights were not affected by the period of laying. Additionally, Japanese quail tend to deposit similar proportions of shell, albumen, and yolk at the two periods of laying. Likewise, the rate of dry matter of the three egg components, shell mineral concentrations, and yolk fat concentrations did not show any noticeable variation with the laying period. The most significant effect of the laying period was related to the potential reduction in the total protein content of the albumen and the yolk of eggs laid at the peak period of laying. Finally, the laying period did not significantly affect the fertility and hatchability rate of the incubated quail eggs but slightly improved the embryonic mortality rate during the peak laying phase.

scholarly journals Time of sexual maturity and early egg quality of Japanese quails affected by in ovo injection of medicinal plants

2019 ◽  
Vol 62 (2) ◽  
pp. 423-430 ◽  
Author(s):  
Karrar I. A. Al-Shammari ◽  
Justyna Batkowska ◽  
Kamil Drabik ◽  
Magdalena M. Gryzińska
Keyword(s):  
Japanese Quail ◽  
Sexual Maturity ◽  
Egg Quality ◽  
Shape Index ◽  
Control Group ◽  
In Ovo ◽  
Japanese Quails ◽  
Group I ◽  
In Ovo Injection

Abstract. The aim of this study was to evaluate the time to sexual maturity and quality of initial eggs of Japanese quail affected by in ovo injection of plant extracts: ginger (GR), garlic (GC), oregano (O) and cinnamon (C). In total, 2400 eggs of Japanese quails were divided into six groups on the fifth day of incubation. Group I was the control group (NC), which was not injected. Other eggs were injected with 0.1 mL of liquid: group II – the positive control (PC) – with distilled water, group III with 1 % solution of GR, group IV with GC, group V with O and group VI with C. After hatching, the birds were reared in a cage system and fed with balanced mixtures, and 24 h lighting was used. The time at which birds reached sexual maturity was registered, while in the seventh week of rearing, 120 eggs were subject to quality evaluation. The traits of a whole egg (shape index as the ratio of egg width to egg length, weight, specific gravity), shell (strength, weight, thickness and density), albumen (weight, height), yolk (color, weight, index) were evaluated. At the earliest, on 36th day of life, eggs were laid by birds from the GC group, followed by C (37th day), O and NC (38th day), GR (39th day), and PC (41st day). During the first 2 weeks significantly more eggs were collected from the GC than from the other groups. The heaviest eggs derived from GC and GR groups, whereas the lightest came from the C group. Eggs from the GC group had the best shell strength and the greatest proportion of yolk. The use of medicinal herbs by injection in ovo may considerably modify both time of sexual maturity and quality of the initial eggs of Japanese quail.

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.

Comparative Egg Production, Quality and Hatchability in Three Chicken Genotypes under Humid Tropical Conditions

2021 ◽  
Vol 19 (1) ◽  
pp. 38-52
Author(s):  
O.P Omoyara ◽  
M.O Abioja ◽  
O.S Iyasere ◽  
L.T Egbeyale
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Shape Index ◽  
Production Quality ◽  
Internal Quality ◽  
Shell Weight ◽  
Naked Neck ◽  
Weight Percentage ◽  
Tropical Conditions ◽  
Length Width

Comparative study on egg production and hatchability characteristics in Nigerian local (NL; n=24), FUNAAB-α (F-α; n=24) and Transylvanian naked neck (TNN; n=24) chickens aged 25 weeks old was carried out for 4 weeks. Three hundred and sixty hatchable eggs each were used for quality characteristics determination and for incubation. F-α had significantly (P<0.001) higher egg production (90.3%) than TNN (76.9%) while TNN was higher than NL (58.3%). Egg weight (EWT), length, width and surface area, albumen height, weight, percentage and index, shell weight, color and internal quality unit (IQU) were significantly (P<0.001) affected by genotype. These followed the pattern: NL<F-α<TNN. F-α and TNN had significantly (P<0.001) higher values than NL in egg shape index, yolk weight, height and diameter. Yolk colour index was significantly (P<0.01) higher in TNN than in F-α. Yolk percentage and yolk-albumen ratio followed the pattern: NL>F-α>TNN. NL had (P<0.001) thicker and higher shell percentage (SP) than F-α and TNN. Higher Haugh unit (HU) was recorded in TNN than in NL and F-α. Fertility was significantly (P<0.05) higher in F-α than in TNN. Hatchability was not (P>0.05) affected by genotype. Chick weight and chick: egg ratio were significantly (P<0.001) by genotype. TNN had higher chick weight and yield than F-α and NL chicks. In conclusion, F-α laid more eggs than others, exhibited higher fertility with longer chicks at hatch. TNN is superior in EWT, HU, IQU and chick yield. NL had higher SP than others. Keywords: Egg production, Egg quality, FUNAAB alpha chicken, Hatchability, Transylvanian naked neck chicken.

scholarly journals The Effect of Age and Genotype on Quality of Eggs in Brown Egg‑Laying Hybrids

2019 ◽  
Vol 67 (2) ◽  
pp. 407-414 ◽  
Author(s):  
Adam Kraus ◽  
Lukáš Zita
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Shape Index ◽  
Egg Laying ◽  
Average Weight ◽  
Eggshell Thickness ◽  
External Quality ◽  
Technological Value ◽  
Effect Of Age

The aim was to assess the internal and external quality of consumer eggs of egg‑laying hens of two selected genotypes depending on their age. All of these hens were kept in enriched cages. There were compared eggs from Hy‑Line Brown and ISA Brown hens at the age from 36 to 64 weeks. In total, 3840 eggs from 300 hens were evaluated. Quality of eggs was determined by their technological value. Statistically significant interactions (P = 0.001) between age and genotype were found in all evaluated parameters except for the yolk colour (P = 0.044), whereas there was not found interaction (P = 0.072) between age and genotype in eggshell strength. The significant effect of hens’ age was found in all evaluated parameters, with the only exception of the yolk colour. The results showed that the average weight of eggs, eggshell, albumen and yolk increased with the age. Also the eggshell proportion, its colour and yolk index values ​​increased, whereas the egg shape index, eggshell thickness and strength, albumen proportion, Haugh units, the albumen and the yolk index decreased. Statistically significant effect of the genotype was found in all evaluated parameters except for the yolk index. When comparing both genotypes, the eggs from ISA Brown hens had a better quality. The trend of deteriorating egg quality with age was confirmed.

scholarly journals FEEDING FREQUENCY AND DENSITY OF MICROALGAE PASTE (CHLORELLA VULGARIS) IN THE DIET OF DEKALB UNDER BATTERY CAGE SYSTEM

2021 ◽  
Vol 9 (10) ◽  
pp. 429-437
Author(s):  
Hannah F. Gan ◽  
◽  
Ken N. Falculan ◽  
Keyword(s):  
Chlorella Vulgaris ◽  
Egg Production ◽  
Animal Feed ◽  
Shape Index ◽  
Internal Quality ◽  
Feeding Frequency ◽  
Egg Weight ◽  
Cage System ◽  
Laying Performance

Poultry products are the major source of animal protein for most people throughout the world and egg production is the major index of performance of commercial layer business and the avenue in the potential increase ofincome from the enterprise which focuses onegg yield, weight of eggs, and increasing their quality production to enhance economic performance.Microalgae is certainly an interesting solution, it aims to increase its value as an animal feed additive in new commercial applications. The experimental research was used in this study to evaluate the laying performance and egg quality of DeKalb under two feeding regimen such as feeding density andfrequency of microalgae paste Chlorella vulgaris under battery type cage system. The experiment was conducted in acompletely randomized designwith a period of 30 days with 81 Dekalb of the same age. The experimental diet used were commercial feeds,microalgae paste and feeding frequencies of 4 times, 3 times and 2 times.Egg characteristics such as total number of eggs, egg weight (g), egg length (mm), egg width (mm) and shape index (%) were computed based on the data from feeding frequency and density. The costs of feeds and price of grown Dekalb and some material used were used in the computation of return on investment. Based on the result, the effect on the external quality of eggs fed under different feeding densities and frequencies on egg production, egg width, egg weight, egg length and shape index resulted to not significantthe null hypothesis was accepted. The internal quality, the effect of different feeding densities on albumen height, albumen weight and yolk width also statistically not significant. Supplementation of microalgae Chlorella vulgaris on hen diet can be included as a dietary supplement for laying hens up to 80% of the diet to produce quality eggs.

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 Non-Parametrical Canonical Analysis of Quality-Related Characteristics of Eggs of Different Varieties of Native Hens Compared to Laying Lineage

Animals ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 153 ◽  
Author(s):  
Antonio González Ariza ◽  
Francisco Navas González ◽  
Ander Arando Arbulu ◽  
José León Jurado ◽  
Cecilio Barba Capote ◽  
...  
Keyword(s):  
Egg Quality ◽  
Age Groups ◽  
Individual Identification ◽  
Internal Quality ◽  
Control Group ◽  
External Quality ◽  
Shell Weight ◽  
Almost All ◽  
Different Levels

The aim of the present study is to characterize the productive capability of Utrerana and to compare the relationships among parameters determining the internal and external quality of the egg, through canonical correlation analysis. A flock of 68 Utrerana hens and a control group of Leghorn hens (n = 17) were housed individually to allow individual identification of eggs and for the assessment of egg quality characteristics. Almost all variables showed differences when both breeds were compared, except for white height, yolk diameter, yolkL* and yolk pH (p > 0.05). Only minor diameter, white height, yolkL*, yolka*, and shell weight reported significant differences between laying age groups. White height, yolk color, and almost all yolk color coordinates were significantly different (p < 0.05) for period and month. Egg and white weight reached highest significantly different levels for the fourth and fifth time that the hens laid an egg. External quality-related traits are better predictors of internal quality-related traits than vice versa, enabling the implementation of an effective noninvasive method for internal quality determination and egg classification aimed at suiting the needs of consumers.

Effect of ambient temperature on the production parameters and egg quality of Japanese quail (Cortunix japonica)

2019 ◽  
pp. 1-8
Author(s):  
K.O Soares ◽  
E. P Saraiva ◽  
J.D.C. dos Santos ◽  
R.G. Amorim ◽  
J.L.G. Costa ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Japanese Quail ◽  
Egg Quality ◽  
Production Parameters

scholarly journals Synthetic pigments for Japanese quail fed diets with sorghum

2016 ◽  
Vol 68 (4) ◽  
pp. 1007-1014 ◽  
Author(s):  
A.M.A. Moura ◽  
T.V. Melo ◽  
D.J.A. Miranda
Keyword(s):  
Japanese Quail ◽  
Egg Quality ◽  
Control Diet ◽  
Egg Yolk ◽  
Experimental Unit ◽  
Regression Equations ◽  
Productive Traits ◽  
Synthetic Pigments ◽  
Cost Characteristics

ABSTRACT Corn is the major energy ingredient in diets, and many ingredients have been tested aiming to replace it. In this regard, sorghum stands out for its chemical profile similar to that of corn. However, because it is low in carotenoids, its inclusion in diets reduces the egg yolk color pigmentation, which can be corrected by the addition of synthetic pigments. This study aimed to evaluate the performance and egg quality of Japanese quail (Coturnix japonica) supplemented with red (canthaxanthin) and yellow (apo-ester 10%) synthetic pigments. A total of 150 quail at 70 days of age were distributed according to the experimental diet [R1: corn-based control diet (DC); R2: sorghum-based diet (DS); R3: DS + yellow; R4: DS + yellow + red; and R5: DS + red] with six replications and five birds per experimental unit, for 28 days. Performance, egg quality, yolk color, and feed cost characteristics were evaluated. Regression equations were estimated for the effects of color as a function of periods, and treatment means were compared by Tukey's test at 0.05 probability. There was no significant effect (P>0.05) of additives on the quail productive traits. However, addition of synthetic pigments significantly improved the chromatic profile of the yolks (P<0.05). Inclusion of synthetic pigments improves yolk color, but should be evaluated according to market demands.

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