Intermittent thermal manipulations of broiler embryos during late incubation and their immediate effect on the embryonic development and hatching process

Willemsen, Hilke; Li, Yue; Willems, Els; Franssens, Lies; Wang, Yufeng; Decuypere, Eddy; Everaert, Nadia

doi:10.3382/ps.2011-01390

Cited by 55 publications

(32 citation statements)

References 18 publications

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“…With respect to cooler temperatures, Shinder et al (2009) reduced incubation temperature to 15℃ for 30 or 60 min at EA 18 and 19 and observed an increase in body weight at hatch without affecting hatchability. In contrast, Willemsen et al (2010Willemsen et al ( , 2011 reported that reducing incubation temperature by 3℃ at EA 16 to 18 did not influence either embryo growth or hatchability. It was also found that plasma T 3 which has an important role in the hatching process and thermoregulatory mechanisms (Decuypere et al, 1979;Debonne et al, 2008) was lowered at external pipping stage when eggs incubated at lower temperature (Willemsen et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Manipulation of Incubation Temperatures to Increase Cold Resistance of Broilers:Influence on Embryo Development, Organ Weights, Hormones and Body Composition

et al. 2012

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Eighteen hundred eggs obtained from Ross broiler breeders at 32 and 48 wk age were randomly assigned to two incubation treatments: T1 eggs were incubated at 37.6℃ throughout, while for T2 eggs the incubation temperature was reduced 1℃ for 6 h daily at embryonic ages (EA) 10 to 18. Embryo and organ weights and body composition were measured at EA 14, 19 and day of hatch (DOH). Hatchability and hatching duration, as well as serum triiodothyronine (T 3 ), thyroxin (T 4 ), and triglycerides were measured at DOH. T1 eggs contained less water than T2 eggs at EA 18. Hatchability was lower and the incubation period was 4.2 h longer for T2 than T1 chicks. On DOH for older breeders chick weights and serum T 3 levels were higher for T2 than T1; however, those from younger breeders were similar at both incubation temperatures. These results may show a beneficial effect of T2 treatment in older breeders. Incubation temperature did not affect triglycerides levels. On DOH, higher body lipids content of T2 than T1 chicks may contribute to their resistance to cold post hatch.

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Section: Introductionmentioning

confidence: 99%

Manipulation of Incubation Temperatures to Increase Cold Resistance of Broilers:Influence on Embryo Development, Organ Weights, Hormones and Body Composition

et al. 2012

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“…Although current literature provides relevant information on the effects of variations of incubation temperature in broilers (Kidd, 2004;Yahav et al, 2004b;Yalçin et al, 2005;Piestun et al, 2008;Yalçin et al, 2008;Ghonim et al, 2009;Yahav, 2009;Leksrisompong et al, 2007;Willemsen et al, 2011, Druyan et al, 2012Selim et al, 2012, Loyau et al, 2013, few studies were carried out with layers (Salimet al,2005;Walstra et al, 2010). The present study aimed at evaluating the influence of high incubation temperature on the incubation and blood parameters, and organs weights of layer chicks.…”

Section: Introductionmentioning

confidence: 99%

“…Environmental temperature is reported as the most critical physical factor affecting embryo development and hatchability (Yalçin & Siegel, 2003). Excessive heat inside incubator may reduce hatching efficiency (Willemsen et al,2011;Boleli & Queiroz, 2012) and yolk-free body mass (Lourens et al, 2007;Hulet et al, 2007;Leksrisompong et al, 2007), and may affectchick growth after hatching (Tona et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Effect of High Incubation Temperature on the Blood Parameters of Layer Chicks

Sgavioli¹,

Santos

Domingues

et al. 2016

Rev. Bras. Cienc. Avic.

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Adequate environmental temperature control is essential for incubation efficiency. Layer breeder eggs (n=360) were weighed and distributed in a completely randomized experimental design with two treatments, consisting of two incubation temperatures (T1=37.5 °C, control; and T2=39.0 °C, hot), with two incubators per temperature, and 90 eggs per incubator, totaling 360 eggs. Hatchability, embryo mortality, and chick cloacal and body surface temperatures were not affected by incubation temperature. Eggs incubated at the hot temperature presented greater egg mass loss and higher eggshell conductance than those incubated at the control temperature. Layer chicks derived from eggs incubated at control temperature showed greater absolute weight, yolk-free egg mass, and heavier hearts than those from eggs submitted to heat stress during incubation. The control group presented lower base excess and ionized calcium blood levels. Incubating eggs at temperatures higher than those recommended compromises body and heart development of layer chicks and negatively affects blood ionized calcium availability, and therefore, bone mineralization during embryo development. Efficient temperature control during the incubation of fertile eggs is essential to obtain good quality layer chicks.

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“…Incubation temperatures above that considered optimal for domestic poultry (37-38°C; Romanoff, 1960;French, 1997) negatively affect hatchability and reduce both hatchling quality (Hagger et al, 1986;French, 2000;Leksrisompong et al, 2007;Willemsen et al, 2011;Boleli & Queiroz, 2012) and growth performance after hatch (Decuypere et al, 1979;Geers et al, 1982).…”

Section: Introductionmentioning

confidence: 99%

Effects of Ascorbic Acid Injection in Incubated Eggs Submitted to Heat Stress on Incubation Parameters and Chick Quality

Sgavioli

Júnior

Borges

et al. 2015

Rev. Bras. Cienc. Avic.

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Dose-dependent positive effects on hatchability and hatchling weight have been attributed to ascorbic acid (AA) when eggs were submitted or not to intermittent heat stress during incubation. Fertile breeder (Cobb®) eggs were used to determine if the pre-incubation injection of AA in ovo affects the incubation and hatchling quality of egg incubated under thermoneutral or intermittent heat stress conditions. Eggs were not injected or injected with 0, 2,4, or 6% AA/100µL water and incubated at continuous thermoneutral (37.5ºC) or hot (39.0ºC) temperature. Eggshell temperature (EST) increased in the second half of the incubation period in all experimental groups. The EST of non-injected eggs and of those injected with water was higher when incubated at 39°C than at 37.5°C, but EST was not different among eggs injected with AA. Egg mass loss and eggshell conductance were higher in the eggs incubated at 39°C than at 37.5°C.Hatchability was lower in the eggs injected with AA. Liver and yolk sac weights were higher, whereas heart and liver weights were lower in hatchlings from eggs incubated at 39°C; however, hatchling weight was not affected by incubation temperature. The results showed that AA doses affected egg conductive heat loss and hatchability, and that they did not minimize the effects of high incubation temperature on liver and heart development.

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Intermittent thermal manipulations of broiler embryos during late incubation and their immediate effect on the embryonic development and hatching process

Cited by 55 publications

References 18 publications

Manipulation of Incubation Temperatures to Increase Cold Resistance of Broilers:Influence on Embryo Development, Organ Weights, Hormones and Body Composition

Manipulation of Incubation Temperatures to Increase Cold Resistance of Broilers:Influence on Embryo Development, Organ Weights, Hormones and Body Composition

Effect of High Incubation Temperature on the Blood Parameters of Layer Chicks

Effects of Ascorbic Acid Injection in Incubated Eggs Submitted to Heat Stress on Incubation Parameters and Chick Quality

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