Effect of guinea fowl egg storage duration on embryonic and physiological parameters, and keet juvenile growth

Kouame, Y.A.E.; Nideou, D.; Kouakou, Koffi; Tona, K.

doi:10.3382/ps/pez264

Cited by 17 publications

(11 citation statements)

References 28 publications

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“…This deterioration was revealed by an increase of the albumen pH and yolk pH with the increase of storage duration. The present results agree with Yuceer et al, [ 36 ] who noted an increase of the fresh albumen pH of broiler eggs from 8.64 to 9.03 after 21 d of storage, with Şekeroğlu et al [ 37 ], who noted an increase of the fresh albumen pH of layer eggs from 8.62 to 9.28 after 21 days of storage and with Kouame et al [ 38 ] who noted an increase of the albumen pH of Guinea fowl eggs from 9.64 after 3 days of storage to 10.17 after 11 days of storage. Sheng et al, [ 39 ] also reported an increase in yolk pH from 6.10 in fresh eggs to 6.32 and 6.43 in stored eggs (50 days) at 4 and 22 °C, respectively.…”

Section: Discussionsupporting

confidence: 93%

Interactions between Egg Storage Duration and Breeder Age on Selected Egg Quality, Hatching Results, and Chicken Quality

Nasri

Brand

Najar

et al. 2020

Animals

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Egg storage duration and breeder age are probably interacting to influence egg quality, hatchability, and hatchling quality. To evaluate this interaction, the impact of breeder age (31, 42, 66 weeks) and storage duration (2, 5, 12, 19 days) was investigated on broiler breeder eggs (Arbor Acres). Thick albumen diameter and pH increased, and yolk dry matter decreased between 2 and 19 days of storage. With the increase of breeder age from 31 to 66 weeks, albumen height, percentage and dry matter and shell percentage decreased and the egg weight and yolk percentage, dry matter and diameter increased. Prolonged egg storage increased the yolk pH in all breeder ages, but earlier and steeper in the oldest breeders. Prolonged egg storage resulted in a lower hatchability of set and fertile eggs due to a higher percentage of embryonic mortality. Early mortality increased earlier and steeper with prolonged egg storage in the oldest compared to younger breeders. Between 5 and 19 days of storage, yolk free body mass, liver and proventriculus + gizzard percentages decreased, as well as hatchling length and yolk efficiency (yolk absorption per initial yolk weight). The latter effects were most pronounced in the younger than in the older breeders. Therefore, eggs are preferably stored shorter than 7 d, but if long storage (≥12 days) cannot be avoided, we recommend to store eggs of older breeders when egg quality and hatchability are most important. In case hatchling quality is most important, it would be better to store eggs of younger breeders (31 weeks) for a prolonged period.

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Section: Discussionsupporting

confidence: 93%

Interactions between Egg Storage Duration and Breeder Age on Selected Egg Quality, Hatching Results, and Chicken Quality

Nasri

Brand

Najar

et al. 2020

Animals

View full text Add to dashboard Cite

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“…The difference in egg weights between 7 d and 18 d stored eggs at setting in both ventilated and nonventilated incubator was a result of water loss during storage which was higher in 18 d stored eggs compared to 7 d stored eggs, since there was no significant difference in initial egg weights of the groups at collection. This result corroborates the recent report of Kouame et al. (2019) who showed that egg weight loss increased with storage duration.…”

Section: Discussionsupporting

confidence: 93%

“…The higher egg weight loss for 7 d stored eggs compared to 18 d stored eggs is in line with the report of Tona et al. (2003) and Kouame et al. (2019) who demonstrated that egg weight loss during incubation increased with storage duration.…”

Section: Discussionsupporting

confidence: 91%

“…Increasing storage duration is tantamount to increasing loss of CO 2 through the eggshell, resulting in an increased albumen pH which may have a negative effect on the initiation of embryonic development ( Tona et al., 2003 ). Kouame et al. (2019) demonstrated that guinea fowl egg albumen pH increased with storage duration and therefore retarded embryonic development.…”

Section: Introductionmentioning

confidence: 99%

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Effects of pre-incubation storage duration and nonventilation incubation procedure on embryonic physiology and post-hatch chick performance

et al. 2022

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“…These combined alterations result in an increase of early and late embryo mortality. Similar observations have been reported in the literature for other domestic avian species ( Fasenko et al, 2001 ; Hassan et al, 2005 ; Nowaczewski et al, 2010 ; Hyánková and Novotná, 2013 ; Kouame et al, 2019 ; Taha et al, 2019 ).…”

Section: Introductionsupporting

confidence: 91%

How Egg Storage Duration Prior to Incubation Impairs Egg Quality and Chicken Embryonic Development: Contribution of Imaging Technologies

et al. 2022

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Storing fertilised eggs prior to incubation is a frequent practice in commercial hatcheries to coordinate activities and synchronise hatchings. However, the conditions used to store eggs can have major impacts on egg quality and the subsequent viability of chicken embryos. While storage temperatures of 16–18°C are classically used in hatcheries, the duration of storage varies from three to more than 10 days. We explored the effect of storage duration (zero, three or 10 days; D0, D3 and D10, respectively) at 16°C, 80% relative humidity (RH) on egg quality (Broiler, Ross 308), using computed tomography (CT) and classical measurements (egg weight, eggshell strength, egg white pH, Haugh units, yolk index and colour). The results revealed that a storage duration of up to 10 days negatively affected some egg quality traits (yolk index and volume, air chamber volume and egg white pH). Eggs stored for three or 10 days were further incubated for 11, 13 or 15 days (37.8°C, 55% RH). Eggs were analysed by magnetic resonance imaging (MRI) and CT to assess the development of the embryo and internal egg changes occurring during incubation. First, data showed that the fertility and sex ratio of eggs were not affected by storage duration. However, the mortality of viable eggs was increased in the D10 group compared to the D3 group. Results of non-invasive imaging technologies revealed that the storage of eggs for 10 days impaired embryo growth as early as 11 days of incubation (decrease in brain and embryo volumes). Collectively, these data provide new evidence that the duration of egg storage negatively affects embryonic growth. They further corroborate that this parameter is likely to be crucial to synchronising embryonic stages and maybe reducing the hatching window, hence limiting the time spent by newborn chicks in hatchers. In addition, our results highlight that CT and MRI imaging technologies are useful non-invasive tools to evaluate egg quality prior to incubation and the impact of storage (or incubation) practices on developmental growth of the embryo.

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Effect of guinea fowl egg storage duration on embryonic and physiological parameters, and keet juvenile growth

Cited by 17 publications

References 28 publications

Interactions between Egg Storage Duration and Breeder Age on Selected Egg Quality, Hatching Results, and Chicken Quality

Interactions between Egg Storage Duration and Breeder Age on Selected Egg Quality, Hatching Results, and Chicken Quality

Effects of pre-incubation storage duration and nonventilation incubation procedure on embryonic physiology and post-hatch chick performance

How Egg Storage Duration Prior to Incubation Impairs Egg Quality and Chicken Embryonic Development: Contribution of Imaging Technologies

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