Effect of microwave irradiation (2.45 GHz, CW) on egg weight loss, egg hatchability, and hatchling growth of the Coturnix quail

1985 ◽  
Vol 6 (3) ◽  
pp. 271-282 ◽  
Author(s):  
David Byman ◽  
Sam P. Battista ◽  
Fred E. Wasserman ◽  
Thomas H. Kunz
Keyword(s):  
Weight Loss ◽  
Microwave Irradiation ◽  
Egg Weight ◽  
Egg Hatchability ◽  
Coturnix Quail

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 Broiler Breeders’ Age on Eggshell Temperature, Embryo Viability and Hatchability Parameters

2016 ◽  
Vol 16 (1) ◽  
pp. 235-243 ◽  
Author(s):  
Sebastian Nowaczewski ◽  
Mateusz Babuszkiewicz ◽  
Sebastian Kaczmarek
Keyword(s):  
Weight Loss ◽  
Incubation Period ◽  
Reproductive Season ◽  
Embryonic Mortality ◽  
Broiler Breeders ◽  
Embryo Viability ◽  
Egg Weight ◽  
Average Temperature ◽  
Total Percentage ◽  
Temperature Controlled

AbstractThe aim of the study was to analyze eggshell temperature, embryo viability, and hatchability parameters of broiler breeders at different ages (26-30, 31-35, 36-40, 41-45, and 46-64 weeks). A total of 33,150 eggs from Ross 308 broiler breeders collected from commercial flocks were used to analyze the following: egg weight and egg weight loss during 18 days of incubation; eggshell temperature controlled on days 3, 14, and 18 of incubation; number of infertile eggs including eggs with dead embryos at early stages of development, that is, in the oviduct or after oviposition; the total percentage of embryonic mortality and the percentage of embryonic mortality at different times of incubation; unhatched, dead after hatching, and culled chicks as well as hatchability percentage from fertilized eggs. The hatchability results of Ross 308 broiler breeders were high from the beginning of reproductive season till the 40th week. However, the study failed to reveal any relationships between hatchability and the egg weight, average temperature of the shell, and egg weight loss during incubation period. The oldest hens, over 45 weeks of age, had the highest mortality of chicks and the greatest share of unhatched chicks.

Egg Weight Loss and Nest Humidity during Incubation in Two Alaskan Gulls

The Condor ◽  
1978 ◽  
Vol 80 (3) ◽  
pp. 272-275 ◽  
Author(s):  
K. R. Morgan ◽  
C. V. Paganelli ◽  
H. Rahn
Keyword(s):  
Weight Loss ◽  
Egg Weight

Daily measurements of variation in weight loss of eggs of seven passerine species before and during natural incubation

1982 ◽  
Vol 60 (12) ◽  
pp. 3143-3149 ◽  
Author(s):  
T. H. Manning
Keyword(s):  
Weight Loss ◽  
Linear Regression ◽  
Incubation Period ◽  
Weight Loss Curve ◽  
High Humidity ◽  
Barn Swallow ◽  
Egg Weight ◽  
Passerine Species ◽  
Shell Damage ◽  
Curvilinear Regression

The eggs of one or more clutches of seven passerine species were weighed each day from the day they were laid until hatching. In all seven, the rate of weight loss increased during incubation. This increase was more rapid in the early stages, leading to curvilinear regression. Linear regression was, however, highly significant and explained over 80% of the variation in four species. Curvilinear regression was significant in two other species. The weight loss curve of a single unfertilized Barn Swallow, Hirundo rustica, egg was similar to that of the rest of the clutch until they commenced to pip. The daily weight loss of five unincubated eggs also increased with time. Shell damage was suspected to be the cause of sudden increases in weight loss of individual eggs. A simultaneous drop in weight loss by six clutches was probably caused by high humidity. Other decreases in weight loss may have been caused by rain. Mean weight loss from water vapour conductance through the shell as a percentage of initial egg weight was 0.9 ± 0.08 during the laying period, 12.0 ± 0.72 during the laying period plus the incubation period prior to pipping, and an estimated 14.6 ± 0.85 for the laying period and the whole incubation period.

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