Field study on the factors affecting egg weight loss, early embryonic mortality, hatchability, and chick mortality with the use of classification tree technique

Abstract. This study was undertaken to determine the effects of storage period and egg weight of hatching eggs of Japanese quails on fertility, hatchability results. Eggs were obtained 150 females quails, all at 15 weeks of age. A total of 1942 hatching eggs were separated into 3 groups as light-weight (9.50-10.50 g), medium-weight (10.51-11.50 g), and heavy-weight (11.51-12.50 g). Based on storage period, eggs were divided into 5 groups as group 1 (0-3 days), group 2 (4-6 days), group 3 (7-9 days), group 4 (10-12 days), and group 5 (13-15 days). The influence of storage period on hatchability of fertile eggs and early, middle, and late period embryonic mortality rates was found significant (P<0.01). The effect of egg weight on fertility rate, hatchability of fertile eggs and early embryonic mortality was significant (P<0.05, P<0.01). The significant differences between storage period groups were observed in hatchability of fertile eggs. The differences between egg weight groups for fertility rate, hatchability of fertile eggs and early embryonic mortality was significantly higher in light weight group than the other egg weight groups. Results of this study concluded that a 12 day pre-incubation storage of hatching eggs of Japanese quails did not appreciably affect hatching parameters. Use of medium or heavy weight eggs for hatching may reduce early embryonic mortality rate.

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

Annals of Animal Science ◽

10.1515/aoas-2015-0081 ◽

2016 ◽

Vol 16 (1) ◽

pp. 235-243 ◽

Cited By ~ 1

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.

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Heritability of embryonic mortalities in ostrich eggs and factors affecting hatching failure of fertile eggs during artificial incubation

Animal Production Science ◽

10.1071/an11225 ◽

2012 ◽

Vol 52 (9) ◽

pp. 806 ◽

Cited By ~ 1

Author(s):

Z. Brand ◽

S. W. P. Cloete ◽

I. A. Malecki ◽

C. R. Brown

Keyword(s):

Genetic Parameters ◽

Embryonic Mortality ◽

High Rate ◽

Industry Data ◽

Genetic Changes ◽

Factors Affecting ◽

Early Embryonic Mortality ◽

The Individual ◽

Embryonic Death ◽

Artificial Incubation

The high rate of embryonic mortality during artificial incubation of ostrich eggs is a major concern in the ostrich industry. Data from 48 126 individual egg records were available to derive genetic parameters for embryonic mortalities, modelled as a trait of the individual egg. Embryonic mortality was classified according to stage of death, i.e. early embryonic mortality that occurred before 21 days of incubation (EEM), late embryonic mortality that occurred after 21 days of incubation (LEM) and overall embryonic mortalities (OEM). LEM increased significantly for eggs laid by females >10 years old. Transfer of eggs between incubators during incubation also impaired hatchability. An increase in OEM occurred for eggs freshly set (43%) as well as for eggs stored for more than 6 days (50%). Medium heritability (h2) estimates were derived for all the embryonic death traits and ranged between 0.16 ± 0.02 for LEM and 0.22 ± 0.03 for EEM. The dam permanent environmental effect was low ranging between 0.021 ± 0.005 for LEM and 0.046 ± 0.008 for EEM. Hatchability of fertile ostrich eggs may consequently be improved by removing older females from breeding flocks, setting of eggs between 2 and 6 days after collection, and by refraining to transfer of eggs between incubators during incubation. Moderate h2 estimates indicate that breeding may be used as a tool to enhance chick production in ostriches. This contention is supported by the fact that selected breeding for chick production and liveweight appeared to result in genetic changes in embryonic mortality rates.

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Production traits and hatching of a Barred Rock 1 pure line, its feather sexable strains and their crosses

Animal Production Science ◽

10.1071/an11357 ◽

2012 ◽

Vol 52 (10) ◽

pp. 945 ◽

Cited By ~ 1

Author(s):

Ismail Durmus ◽

Huseyin Goger ◽

Sahnur Demirtas ◽

Sermin Yurtogullari

Keyword(s):

Rhode Island ◽

Sexual Maturity ◽

Egg Production ◽

Pure Line ◽

Embryonic Mortality ◽

Production Traits ◽

Egg Weight ◽

Significant Difference ◽

Early Embryonic Mortality

The study was carried out to identify some production traits of the pure Barred Rock 1 (BR1) line and rapid × slow feathering line crosses derived from the BR1 pure line, in addition to F1 crosses of all these dam lines with Rhode Island Red 1 sire line. The BR1 line previously used a brown layer dam line for barred/non-barred day-old chick auto-sexing and synthetic slow and rapid wing feathering lines. Parent lines showed significant differences in sexual maturity and egg production (P < 0.01) and early embryonic mortality (P < 0.05). However, there was no significant difference in weight at sexual maturity, average egg weight, hatchability of fertile eggs, hatchability of total eggs set, and middle and late embryonic mortalities. A significant difference was found among F1 crosses with respect to weight at sexual maturity (P < 0.05), but no significant difference (P > 0.05) could be determined for age at sexual maturity and egg production. Overall, rapid feathering hens had better production traits than slow feathering hens. The dual crossbred parent lines exhibited almost the same level of egg production traits compared with the pure line.

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Effects of high light intensity on egg weight loss, hatchability, embryonic mortality, and supply organ weight at hatch in quail hatching eggs during incubation

Selcuk Journal of Agricultural and Food Sciences ◽

10.15316/sjafs.2019.153 ◽

2019 ◽

Vol 33 (1) ◽

pp. 37-41

Author(s):

Talha Seçim Kaya ◽

Ali Aygün

Keyword(s):

Weight Loss ◽

Light Intensity ◽

High Light Intensity ◽

High Light ◽

Organ Weight ◽

Embryonic Mortality ◽

Egg Weight ◽

Hatching Eggs

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Effect of egg size and lines on hatching performance of chicks from broiler breeders under selection

Nigerian Journal of Animal Production ◽

10.51791/njap.v45i1.377 ◽

2020 ◽

Vol 45 (1) ◽

pp. 18-25 ◽

Cited By ~ 1

Author(s):

A. K. Olutunmogun ◽

A. U. Umar ◽

E. O. Adejoh-Ubani ◽

B. I. Nwagu ◽

I. A. Adeyinka ◽

...

Keyword(s):

Weight Loss ◽

Analysis Of Variance ◽

Egg Size ◽

Embryonic Mortality ◽

Size Group ◽

Broiler Chicks ◽

Broiler Breeders ◽

Minimum Loss ◽

Egg Weight ◽

Randomized Design

The study was conducted with the objective of evaluating the effect of egg size (small, medium and large) and lines on egg and hatch weight, fertility, hatchability, embryonic mortality and infertile eggs of broiler breeders under selection. A total of 120 broiler chicks were hatched from three different egg sizes (40 chicks per egg size as indicated) from breeder parents at 40 weeks of age. The broiler breeders were mated in a ratio of 1:6. Data obtained were subjected to analysis of variance in a complete randomized design. The result showed that significant (p<0.05) egg weight loss in incubator were recorded with the large egg size group having the minimum loss of 10.85%. The hatch weight was significant (p<0.05) and increased from the small to the large (36.24, 36.73 and 40.22g) egg size group. Line had significant effect (p<0.05) only on the medium egg size: egg weight (sire = 57.50g; dam = 55.00g) and hatch weights (sire = 39.71g; dam = 36.10g). The fertility (94.02, 93.01 and 78.01%), hatchability (87.42, 88.20 and 62.41%) and embryonic mortality (6.58, 9.80 and 15.6%) had significant (p<0.05) differences with the small egg size group performing better excluding the average egg weight, which was then followed closely by medium egg size group. It can be concluded that for higher hatch weight target, the large egg size should be selected but for the purpose of better fertility and hatchability, the medium and small egg sizes should be selected.

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Tavuklarda Yumurta Şekil İndeksinin Kuluçka Özellikleri Üzerine Etkisi

Turkish Journal of Agriculture - Food Science and Technology ◽

10.24925/turjaf.v3i7.583-587.457 ◽

2015 ◽

Vol 3 (7) ◽

pp. 583 ◽

Cited By ~ 3

Author(s):

Erol Aşcı ◽

İsmail Durmuş

Keyword(s):

Weight Loss ◽

Sex Ratio ◽

Significant Relationship ◽

Shape Index ◽

Fertility Rate ◽

Embryonic Mortality ◽

The Other ◽

Research Station ◽

Egg Weight

In this study, the effects of egg shape index on hatching characteristics (fertility rate, embryo mortality, hatchability of fertile eggs and hatchability), egg weight loss, chick weight, sex ratio and quality of chicks were investigated. A total of 960 eggs of ATAK- S hybrid parents obtained from Ankara Poultry Research Station were divided into three different groups (SI≤71, 72≤SI≤76, SI≤77) based on shape index and were used. A significant relationship between fertility rate and late embryonic mortality was found in the shape index groups. On the other hand, no differences were found in the rate of weight loss at 18 day, early and middle embryonic mortality, malposition rate, hatchability, sex ratio and chick quality among the shape index groups. It was concluded that shape index affected the hatching results and also that eggs of abnormal shape index should not be used for hatching.

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Impact of Hatching Egg Disinfection on Hatching Characteristics and Chick Embryos

Indian Journal of Animal Research ◽

10.18805/ijar.b-1129 ◽

2019 ◽

Author(s):

Gamal M. Bekhet

Keyword(s):

Hydrogen Peroxide ◽

Weight Loss ◽

Sodium Chloride ◽

Embryonic Mortality ◽

Chick Embryos ◽

Egg Weight ◽

Significant Percentage ◽

Treatment Groups ◽

Hatching Eggs ◽

Chemical Disinfectant

Four thousand two hundred hatching eggs were obtained from Bandarah chicken to evaluate the effect of chemical and natural egg disinfectants and fumigation on egg weight loss, embryonic mortality, hatchability, hatch time, chick weight and chick weight loss. Three incubation trials were done; each one contained 1400 hatched eggs and divided into fourteen treatments (100 eggs per each). First treatment (T1) was used as control without any treatment, eggs of second treatment (T2) were dipped in water and third treatment in alcohol, whereas T4, T5, T6, T7 treated egg groups were dipped in chemical disinfectant (sodium chloride, betadine, hydrogen peroxide, virkon S). Egg of T9, T10, T11, T12, T13 and T14 groups were dipped in natural disinfectants (oregano, cumin 02 and 04 % and oregano+ cumin01 and 02), respectively. The thickest eggshell (031mm) was recorded for betadine group in infertile eggs compared with those for formaldehyde fumigation and oregano+cumin 01% oregano+cumin 01% group (035mm) compared with all other treatment groups. Formaldehyde fumigation recorded the worst and highest significant percentage of embryonic mortality (1795%). Highest significant percentages for hatchability of fertile egg were recorded in egg groups with oregano 02 and 04% (9687 and 9576%), cumin 02 and 04 % (9551and 9715%) and oregano+cumin01 and 02% (9619 and 9615%), respectively.

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