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Effects of exposing Japanese quail eggs to a low dose of gamma radiation and in ovo feeding by two sources of trace elements on embryonic development activities.

ABSTRACT: The present study investigated the influence of exposing quail eggs to low-dose gamma radiation (GR) and in ovo feeding with 2 sources of a mixture of trace elements (Zn, Fe, and Cu), including sulfate (TES) and loaded with montmorillonite (TEM), on embryonic development activities and prehatch quality. A total of 960 eggs on the seventh day of incubation were randomly divided into 6 groups (160 eggs/group) with 4 replicate of 40 eggs in each. A 3 × 2 factorial arrangement experiment was performed and included 3 sources in ovo feeding with a mixture of trace elements (Zn, Fe, and Cu), including 0 mg/egg, 50 mg TES/egg, and 50 mg TEM/egg with egg irradiation using 0 and 0.2 Gy from GR. Eggs injected with 50 mg TEM/egg and exposed to 0.2 Gy from GR (TEM/GR) was significantly (P ≤ 0.05 and 0.01) higher in hatchability, hatch body weight, and relative organ weight (liver, gizzard, proventriculus, heart, and intestine). The obtained results indicated significant (P ≤ 0.05) decreased in the serum concentration of malondialdehyde (MDA) in TEM/GR group. There was significant (P ≤ 0.05) increased of catalase (CAT) activity and the concentrations of growth hormone (GH) and insulin-like growth factor-1 (IGF-1) in TEM/GR group; however; total antioxidant capacity (T-AOC) was significant (P ≤ 0.05) increased in CT/GR group. Serum concentrations of immunoglobulin M (IgM) (P ≤ 0.05) and tumor necrosis factor-alpha (TNF-α) were increased in the TEM/CR group; the concentration of transforming growth factor beta (TGF-β) significant (P ≤ 0.05) increased in the TEM/GR group; and interleukins (IL6 and IL10) showed no significant differences among the groups. Our results showed increase in thyroxine and myostatin concentrations with TES/CR and CT/GR of our study groups, respectively. The relative mRNA expression levels of the GH, IGF-1, and Fas cell surface death receptor (FAS) genes were significantly (P ≤ 0.05 and 0.01) upregulated in the liver tissue of the TEM/GR group compared with the other groups. In conclusion, TEM/GR was the best treatment for improving prehatch quality, increasing serum antioxidant enzyme activities, and promoting the expression of growth and immune genes in fertilized quail eggs.

SUBMITTER: Hatab MH

PROVIDER: S-EPMC10825557 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature

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Effects of exposing Japanese quail eggs to a low dose of gamma radiation and in ovo feeding by two sources of trace elements on embryonic development activities.

Hatab Mahmoud H MH Chen Wei W Abouelezz Khaled K Elaroussi Mahmoud M Badran Aml A Zoheir Khairy K El-Komy Esteftah E Li Shijun S Elokil Abdelmotaleb A

Poultry science 20231209 3

The present study investigated the influence of exposing quail eggs to low-dose gamma radiation (GR) and in ovo feeding with 2 sources of a mixture of trace elements (Zn, Fe, and Cu), including sulfate (TES) and loaded with montmorillonite (TEM), on embryonic development activities and prehatch quality. A total of 960 eggs on the seventh day of incubation were randomly divided into 6 groups (160 eggs/group) with 4 replicate of 40 eggs in each. A 3 × 2 factorial arrangement experiment was perform ...[more]

PMID: 38198914

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Project description:BackgroundDue to the fluctuating nature of the poultry market, including the need for chicks, there is often a necessity to extend the storage time of hatching eggs. Commonly they are stored at the farm to reduce the cost of daily collection, while hatcheries collect a large number of eggs to fill the entire incubator at once. In the case of hen eggs, eggs stored for three to seven days are usually used for incubation. In the case of quail eggs, there are no specific recommendations in this respect, while the common perception is that they "age" differently from hen eggs and stay fresh longer. The study was aimed to determine the maximum eggs storage time after which it is possible to obtain full-quality chicks. seven hundred and fifty six eggs of Japanese quail hatching eggs were collected at 4-day intervals for 52 days dividing them into 14 groups of 54 eggs (6 replications in each). Consecutive batches of eggs were stored (at physiological zero conditions) for 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48 and 52 days, respectively; the control group consisted of fresh, unstored eggs. Fifty two days after the first eggs were collected, all groups, including the control one, were incubated under species-specific conditions. The water loss of eggs during the incubation as well as hatching results were determined. The weight and quality of hatchlings were evaluated.ResultsIt was shown that storage time significantly affected the egg weight loss and hatchability of chicks, which were not obtained from eggs stored longer than 32 days. There was no effect of the experimental factor on hatchability from eggs stored for up to 20 days, after longer storage the ratio gradually decreased. With time passing, a decrease in early embryo viability and hatchability while an increase in embryo mortality was observed, mainly in the late incubation phase. Interestingly, the duration of egg storage did not differentiate the weight of the chicks obtained but affected their quality.ConclusionsThe results of the study confirmed the negative effect of long-term Japanese quail eggs storage on the hatching performance; however, the viability of Japanese quail embryos is noteworthy. The loss of egg weight during the incubation was directly proportional to the change in this trait before incubation due to the storage time. The prolonged egg storage may have negatively affected chick hatching by limiting the embryo's access to essential nutrients and oxygen. These results have important practical implications for small-scale poultry producers, as they suggest that storage times of hatching quail eggs can be extended, but not beyond 24 days, which is still three times longer than usually recommended seven days for hen eggs.

Dataset Information

Effects of exposing Japanese quail eggs to a low dose of gamma radiation and in ovo feeding by two sources of trace elements on embryonic development activities.

Publications

Effects of exposing Japanese quail eggs to a low dose of gamma radiation and in ovo feeding by two sources of trace elements on embryonic development activities.

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