Egg Injection of Ascorbic Acid Stimulates Leucocytosis and Cell Proliferation 
 in the Bursa of Fabricius

Sgavioli, Sarah; Borges, Liliana Longo; Almeida, Vitor Rosa de; Thimotheo, Mariana; Oliveira, João Ademir de; Boleli, Isabel Cristina

doi:10.3923/ijps.2013.464.472

Cited by 7 publications

(6 citation statements)

References 11 publications

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“…This shows that the embryo is able to react to minor temperature fluctuations inside the egg, and that it attempts to regulate its internal temperature within a very narrow range (Tzschentke & Nichelmann, 1997). Based on these findings, studies were carried out to assess the effects of incubation temperature on embryo temperature, thermal manipulation during incubation, and in-ovo injection of the anti-stress nutrients, such as vitamin C, as means to induce possible thermal adaptation of poultry during rearing or to promote phenotypic changes to meet specific objectives (Sgavioli et al, 2013(Sgavioli et al, , 2015Ferreira et al, 2015;Almeida et al, 2016;Morita et al, 2016 a,b).…”

Section: Incubation Temperaturementioning

confidence: 99%

Poultry Egg Incubation: Integrating and Optimizing Production Efficiency

Boleli

Morita

Matos

et al. 2016

Rev. Bras. Cienc. Avic.

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Due to its central position in the production chain, in-ovo development is influenced by pre-incubation factors that affect the quality of embryonated eggs and incubation conditions themselves, and both may influence egg hatchability and chick quality, as well as bird survival, growth performance, and phenotype in the field. The evolution of the incubation process over the years is characterized by significant scientific and technological development. Presently, the main current focuses of research are the manipulation of thermal incubation conditions, eggshell temperature, and the integrated effects of factors that influence incubation. In this context, one of the questions that needs to be asked is how effective are the current physical conditions of incubation to promote greater hatchability and better quality chicks, and higher survival and better performance in the field under adverse conditions or not. What are the new and future prospects for incubation? The purpose of this paper was to review the role of the physical agents of incubation, such as temperature, relative humidity, O 2 and CO 2 concentration, and egg turning and position from an integrated perspective, considering egg incubation as the transitional link between egg and poultry production.

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Section: Incubation Temperaturementioning

confidence: 99%

Poultry Egg Incubation: Integrating and Optimizing Production Efficiency

Boleli

Morita

Matos

et al. 2016

Rev. Bras. Cienc. Avic.

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“…This suggests that domestic fowl under heat stress should receive vitamin C supplementation. Ascorbic acid participates in several biological processes; it assists collagen synthesis and maintenance; it is essential for formation and maintenance of connective tissue, bone and cartilage; it, stimulates the immune system and enhances disease resistance (Farquharson et al, 1998;Berzina et al, 2013;Sgavioli et al, 2013;Chand et al, 2014). Finally, ascorbic acid influences the development of the leg bones in stressed birds (Lesson & Summers, 2001).…”

Section: Introductionmentioning

confidence: 99%

Effect of In-Ovo Ascorbic Acid Injection on the Bone Development of Broiler Chickens Submitted to Heat Stress During Incubation and Rearing

Sgavioli

Domingues

Santos

et al. 2016

Rev. Bras. Cienc. Avic.

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Ash, mineral density, femoral bone strength, tibia, vitamin C. ABSTRACTThis experiment was conducted to evaluate the effect of in-ovo ascorbic acid (AA) injection on the bone development of broilers submitted to heat stress during incubation and rearing. One thousand (1,000) Cobb ® fertile broiler eggs were randomly distributed according to the weight into five incubators, with 200 eggs per incubator. The incubation treatments were: eggs not injected with AA and incubated at 37.5°C; eggs not injected with AA and incubated at 39°C; and eggs injected with 6 µg AA/100 µL water prior to incubation and incubated at 39ºC. The hatched birds were reared at three different house temperatures: cold, thermoneutral, or and hot. The high incubation temperature negatively influenced broilers' bone characteristics. The femur of the birds hatched from eggs incubated at 39°C and injected with AA presented lower shaft mineral density, lower maximum force and lower elongation at maximum force. Their tibia presented reduced mineral density at the proximal and distal epiphysis. In-ovo AA injection of eggs incubated at high temperature did not minimize the negative effects of high rearing temperature on the performance andbone development of broiler chickens reared until 42 days of age.

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“…These data are similar to those of Ghonim et al (2009), who reported no effect of the injection of ascorbic acid on the erythrocyte of broiler chicks; however, the authors only looked at the effects of this vitamin in chicks resulting from eggs injected on the 14 th day of incubation. In addition, Sgavioli et al (2013) reported that injecting fertile eggs with ascorbic acid did not significantly affect some blood hematological parameters as red blood cell (RBC's) count, HCT %, MCV, or on serum glucose and triiodothyronin concentrations. Although the egg is considered a functional food (Stadelman, 1999) and is an excellent source of protein, essential lipids, vitamins and minerals (Zeidler, 2002), many people reduce their consumption of eggs because they consider that high egg cholesterol content may cause cardiovascular diseases.…”

Section: Discussion Hatchability Mortality Rates and Hatched Chicks'mentioning

confidence: 99%

Effect of Ascorbic Acid Injection in Pre-Incubated Hy-Line Layer Eggs on Hatchability and Some Blood and Hematological Parameters of Hatched Chicks

Badran¹,

Hatab²,

Ibrahim³

2017

EPSJ

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The present work was carried out to study the effect of ascorbic acid (AsA) injection into fertile Hy-line layer eggs on hatchability, mortality and some blood and hematological parameters of hatched chicks. Three hundred Hy-line layer eggs were divided into four equal groups with 75 eggs for each group with three replicate (25 fertile eggs for each replicate). The first group was injected, pre-incubation, in the air cell by 50 µl deionized water and served as a sham control. While the second, third and fourth groups were injected in the air cell with either 2, 4 or 6 % ascorbic acid. dissolved in 50 µl deionized water and served as AsA-treated groups. Eggs were incubated at 37.5°C and 60 % relative humidity during the first 19 th days of incubation. Eggs were turned automatically every 2 hour until the 19 th day. At the 10 th day of incubation, eggs were examined by light candling to remove infertile eggs. All eggs were transferred to the hatchery at the end of the 19 th day of incubation, and placed in hatching trays at 37°C temperature and 70-75 % relative humidity until hatching. hatchability rate, hatching and hatched chick's body weight unlike mortality were significantly higher in the 6 % AsA groups than all the AsA groups or the control group. Hemoglobin concentration was significantly (p<0.05) higher in the the 4 % AsA group and the 6 % AsA group (p<0.05) as compared to the 2 % AsA or control groups. However there was no significant difference in the cholesterol concentration between the control group and all the AsA groups. Glucose and triiodothyronin concentrations were significantly (p<0.05) higher in the 6 % AsA group than the 2 % AsA or control groups. In conclusion, our study suggests injecting 50 microliters of 6 % ascorbic acid reduced embryonic mortality and improvd hatchability and hatched chicks'body weight.

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Egg Injection of Ascorbic Acid Stimulates Leucocytosis and Cell Proliferation in the Bursa of Fabricius

Cited by 7 publications

References 11 publications

Poultry Egg Incubation: Integrating and Optimizing Production Efficiency

Poultry Egg Incubation: Integrating and Optimizing Production Efficiency

Effect of In-Ovo Ascorbic Acid Injection on the Bone Development of Broiler Chickens Submitted to Heat Stress During Incubation and Rearing

Effect of Ascorbic Acid Injection in Pre-Incubated Hy-Line Layer Eggs on Hatchability and Some Blood and Hematological Parameters of Hatched Chicks

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