scholarly journals Relationship Between Shell Porosity, Shell Thickness, Egg Weight Loss, and Embryonic Development in Japanese Quail Eggs

1994 ◽  
Vol 73 (10) ◽  
pp. 1607-1611 ◽  
Author(s):  
F.N.K. SOLIMAN ◽  
R.E. RIZK ◽  
J. BRAKE
Keyword(s):  
Weight Loss ◽  
Embryonic Development ◽  
Japanese Quail ◽  
Shell Thickness ◽  
Egg Weight

scholarly journals Effect of Moisture Loss on the Hatchability of Chicken, Duck and Quail Eggs

2017 ◽  
Vol 9 (2) ◽  
pp. 105-108
Author(s):  
T Hossain ◽  
ASS Hossain ◽  
A Roy ◽  
MAK Azad ◽  
MAR Hawlider
Keyword(s):  
Weight Loss ◽  
Natural Resources ◽  
Rhode Island ◽  
Japanese Quail ◽  
Moisture Loss ◽  
Egg Weight ◽  
Moisture Effect ◽  
Egg Hatchability ◽  
Effect Of Moisture ◽  
Chicken Eggs

The study investigated the effect of moisture loss on the Hatchability of chicken, Duck and Quail eggs. A total of 480 eggs; 120 from Rhode Island Red (RIR) chicken, 60 from Zending duck and 300 from Japanese quail were collected and set in the same incubator with 3 replications to compare hatchability results among the species. Moisture loss percentage was highest (P<0.01) in quail eggs (16.19%), intermediate in chicken eggs (7.76%) and lowest in duck eggs (7.24%). Among 3 genotypes, at all (0, 7 and 14 days) ages, eggs weight was highest (p<0.01) in Zending duck (60.50g), intermediate in RIR chicken (59.188) and lowest in quail (9.55g). Egg weight loss at 7 and 14 days of incubation were highest in quail, intermediate in chicken and lowest in duck. There was no appreciable differences of hatchability on set eggs and fertile eggs among species (p>0.05). Apparently, the hatchability on fertile eggs was similar and higher in chicken (58.3%) and quail (58.9%) and slightly lower in duck (53.7%). However, hatchability on set eggs was highest in quail (58.3%) intermediate in chicken (43.3%) and lowest in duck (40.7%). Chick weight at hatchings was highest (p<0.01) in duck (37.55g), intermediate in chicken (34.56g) and lowest in quail (5.61 g). Chick weight as per cent of egg weight was found highest (p<0.01) in duck (62.07%), intermediate in chicken (58.40%) and lowest in quail (54.24%). There were some relations among the different hatchability results depending on species. There were marked variations in moisture effect among the species. It was clear that hatchability not only affected by species but moisture loss also played an important role on hatchability. It was concluded that under similar environment, hatchability on fertile eggs were similar and higher in quail and chicken and lower in duck. But hatchability on set eggs was highest in quail, intermediate in chicken and lowest in duck. It imply that some losses of moisture with various level may be necessary to enhance egg hatchability is required to support hatching results in different species of poultry.J. Environ. Sci. & Natural Resources, 9(2): 105-108 2016

scholarly journals Effect of egg weight and oviposition time on hatchability and post hatch performance of Japanese quail (Coturnix coturnix japonica)

2020 ◽  
Vol 40 (1) ◽  
pp. 102-110
Author(s):  
L. T. Egbeyale ◽  
H. O. Fatoki ◽  
O. A. Adeyemi
Keyword(s):  
Weight Loss ◽  
Treatment Group ◽  
Factorial Design ◽  
Japanese Quail ◽  
Egg Size ◽  
Coturnix Japonica ◽  
Coturnix Coturnix Japonica ◽  
Egg Weight ◽  
Coturnix Coturnix ◽  
Ad Libitum

A total of three hundred (300) Japanese quail eggs were used to study the effect of oviposition time and egg weight on hatchability and post-hatch performance. The eggs were grouped into two (2) of 150 eggs based on the oviposition time of Morning and Afternoon. The eggs in each group (150) were further sub-grouped based on the egg weights of 8 to10 grams designated as small sized and 10.1 to 12 grams designated as big size in a 2 x 2 factorial design trial of 4 treatments. Each treatment had seventy five (75) eggs each with three replicates. The four treatments groups were; Big Morning, Small Morning, Big Afternoon, Small Afternoon. Each treatment group was replicated three times with each replicates consisting of twenty-five (25) eggs. Hatchability parameters were determined during incubation period of 18 days. The quail chicks were fed ad-libitum and the post- hatch performance was studied for eight (8) weeks. The data generated were subjected to a one-way analysis of variance. Oviposition time and size of the egg significantly (p<0.05) affected the average hatch weight. The effect of interaction of oviposition time and egg size on post-hatch performance did not have any significant (p>0.05) influence. Oviposition time had a positive correlation (p<0.05) with egg weight, egg weight loss, percent egg weight loss and fertility percentage but negatively correlated with average hatch weight and hatchability percentage. Meanwhile egg size had a positive significant (p<0.01) correlation with average hatch weight. It was concluded that eggs ranging between 10.1 to 12 grams will produce higher hatch weight. However, setting of Japanese quail eggs ranging between 8 to 12 grams irrespective of oviposition time could not affect post-hatch performance of the chicks.

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.

Role of shell diffusion area in incubating eggs at simulated high altitude

1978 ◽  
Vol 45 (4) ◽  
pp. 551-556 ◽  
Author(s):  
H. S. Weiss
Keyword(s):  
Weight Loss ◽  
Gas Exchange ◽  
Embryonic Development ◽  
Ambient Pressure ◽  
Enskog Equation ◽  
Egg Weight ◽  
Excess Loss ◽  
Simulated High Altitude ◽  
Ambient Gas

Embryonic development is inhibited when eggs are incubated at 9,100 m (0.3 atm) despite a normoxic environment. The problem apparently relates to respiratory gas exchange occurring by diffusion through gas-filled pores in the shell. Gaseous flux is therefore inversely proportional to ambient pressure and is affected by the physical characteristics of the ambient gas (Chapman-Enskog equation). Excess loss of H2O and CO2 occurs in eggs incubating at altitude and could be detrimental. Such increased loss should be correctable by decreasing diffusion area. This was tested by progressively increasing coverage of the shell with paraffin and incubating at simulated 0.3 ATA (225 Torr) in 100% O2. Uncoated eggs failed to hatch, but numbers of chicks increased with increased coverage. Maximum hatch was an extrapolated 90% of controls at 69% shell coverage. With further coverage, hatch size decreased. Egg weight loss, and estimate of H2O diffusion, was around three times controls in uncoated eggs but decreased linearly with paraffin coverage, reaching near normal at maximum hatch. Reduction of diffusion area to 0.3 normal at maximum hatch generally balanced the increased flux predicted for 0.3 ATA.

scholarly journals Effect of Storage Methods on Egg Characteristics and Embryonic Development of Guinea Fowl (Numida meleagris) Eggs

2020 ◽  
pp. 8-13
Author(s):  
Patrick Atta Poku . Jnr ◽  
Clement Gyeabour Kyere ◽  
Serekye Yaw Annor ◽  
Keziah Kyerewaa Boateng
Keyword(s):  
Weight Loss ◽  
Embryonic Development ◽  
Vegetable Oil ◽  
Egg Quality ◽  
Experimental Treatment ◽  
Guinea Fowl ◽  
Egg Weight ◽  
Saw Dust ◽  
Egg Storage ◽  
Storage Methods

Aims: This study was conducted to investigate the influence of different egg storage methods on egg characteristics and embryonic development of Guinea fowl (Numedia meleagris) eggs. Study Design: A Complete randomized design (CRD) was used for the experiment. Place and Duration of Study: The study was conducted at the Poultry Unit of the Department of Animal Science Education, University of Education, Winneba, Mampong campus. Methodology: A total of one hundred and eighty (180) hatching eggs were used for the experiment. The various experimental coops were labelled in accordance with their experimental treatment as paper crates (T1), vegetable oil (T2) and saw-dust (T3). Each treatment (T) had three replications (20 eggs per replicate), which gave a total of nine replications. Data collected were analyzed using General Linear Model (GLM) procedure of SAS. Results: Results showed that egg storage methods had significant (P < .05) effect on egg weight after storage, egg weight loss and embryonic development. The highest (P < .05) egg weight after storage was observed among eggs stored with vegetable oil and lower among eggs stored on paper crates. Eggs treated with vegetable oil produced very excellent (P < .05) results with lower weight loss while eggs stored with paper crates recorded the highest weight loss. Embryonic development was significantly (P< .05) higher among eggs treated with vegetable oil followed      by saw-dust with paper crates being the least. Albumen weight and yolk weight was significantly (P < .05) higher among eggs treated with vegetable oil. Similar (P < .05) albumen weight was observed for both saw-dust and paper crates. The least yolk weight was observed among eggs stored on paper crates. Conclusion: In conclusion, coating table eggs with vegetable oil could be effectively used to preserve egg quality and improve embryonic development.

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