Broilers respond to cooler ambient temperatures after temperature acclimation during incubation and early postnatal age

Akşit, Mustafa; Yalçın, Servet; Siegel, P. B.; Yenisey, Çiğdem; Özdemir, Demir; Özkan, Sezen

doi:10.3382/japr.2012-00675

Cited by 16 publications

(15 citation statements)

References 25 publications

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“…The absence of significant effect of incubation treatments on BW at 21 d is consistent with the results of Akşit et al. ( 2013 ) showing no effect of lower incubation temperature on body weights in mixed-sex groups of chickens, whereas Shinder et al. ( 2011 ) had reported positive effects of I 2 incubation on body weights at d 14 and 35 post hatch in males.…”

Section: Discussionsupporting

confidence: 89%

“…In accordance with the present positive effect on growth, Aksit et al. ( 2013 ) showed greater BW of mixed-sex chickens from a young breeder flock exposed to postnatal cold. However, this effect was only transient in our study, whereas they observed a longer effect on growth (until 28 d of age), the difference being likely due to the shorter and lower ambient temperature they applied.…”

Section: Discussionsupporting

confidence: 89%

“…Indeed, body temperature was significantly higher in I 1 than in I 0 and I 2 groups at hatch ( P = 0.007); these effects were not observed later on. This observation was not reported previously with the same incubation program I 1 (Yalçin et al., 2012 ; Aksit et al., 2013 ; Loyau et al., 2014a ). However the significantly greater body temperature observed in I1 than in I0 group at hatching is in agreement with the lower body temperature recorded in hatching chicks that were heat-exposed during embryogenesis (Piestun et al., 2008 ; Loyau et al., 2013 ), suggesting changes in the thermoregulatory control of metabolism induced by incubation temperature (2014b, 2014b , 2016 ; Loyau et al., 2015 ).…”

Section: Discussioncontrasting

confidence: 49%

“…( 2014a ) also demonstrated that cold incubation induced modifications in antioxidant pathways, as shown by a higher hepatic catalase activity at hatching. With both cold embryo manipulations, experimental results demonstrated fewer incidences of ascites and a reduction of mortality rates during later cold exposure during the growing phase (Shinder et al., 2011 ; Akşit et al., 2013 ). These techniques could be interesting in order to increase the robustness of chickens from their first d of life, allowing to decrease ambient temperature in farm buildings at the starting period, especially during the phase when temperature is currently decreased in poultry houses (i.e., until 21 d of age).…”

Section: Introductionmentioning

confidence: 99%

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Effect of low incubation temperature and low ambient temperature until 21 days of age on performance and body temperature in fast-growing chickens

Nyuiadzi

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Méda³

et al. 2017

Poultry Science

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Thermal manipulation during embryogenesis was previously reported to decrease the occurrence of ascites and to potentially improve cold tolerance of broilers. The objective of our study was to explore the effects of the interaction of cold incubation temperatures and cool ambient temperatures until 21 d of age on performance and body temperature. Ross 308 eggs were incubated either under control conditions I0 (37.6°C) or with cyclic cold stimulations I1 (6 h/d at 36.6°C from d 10 to 18 of incubation) or with 2 cold stimulations I2 (30 min at 15°C) at d 18 and 19 of incubation. These treatments were followed by individual rearing and postnatal exposure to either standard rearing temperature T0 (from 33°C at hatching to 21°C at d 21) or continuously lower temperature T2 (from 28°C at hatching to 21°C at d 21) or exposure to cyclically lower temperature T1 (with circadian temperature oscillations). Treatments I1 and I2 did not significantly alter hatchability compared to control incubation (with 94.8, 95.1, and 92.3%, respectively), or hatching BW and overall chick quality. Hatching body temperature (Tb) was 0.5 and 0.3°C higher in I1 than in I0 and I2 groups, respectively (P = 0.007). A doubled occurrence of health problems was observed with T2 condition, regardless of incubation or sex. At d 3, BW was 2% lower with treatment I1 than with I0 and I2 and was 3% higher in T1 and T2 groups than in T0, but these effects disappeared with age. Group T2 presented a 5% higher feed intake than the control group T0 between 3 and 21 d of age (P = 0.025). Feed conversion ratio (FCR) was affected by experimental conditions (P < 0.001), with low FCR values obtained with I2 incubation in control or cyclically cold postnatal conditions. Maximal FCR values were observed in the continuously cold postnatal conditions, in males submitted to control incubation and in females submitted to I1 incubation, revealing sex-dependent effects of the treatments on performance.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 89%

Section: Discussioncontrasting

confidence: 49%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of low incubation temperature and low ambient temperature until 21 days of age on performance and body temperature in fast-growing chickens

Nyuiadzi

Travel

Méda³

et al. 2017

Poultry Science

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“…Several studies have reported that broiler embryos exposed to short term (changing from 3 to 12 h per day) either higher or lower cyclic or constant incubation temperatures during the critical periods in embryonic development had improved temperature resistance in later life (Yahav et al, 2004b;Collin et al, 2005;Yalçın et al, 2005;Piestun et al, 2011). Our previous studies also showed that exposing broiler embryos to 1 or 2°C higher or lower incubation temperatures from day 10 to 18 showed adaptive response and improved temperature tolerance when exposed to higher or lower ambient temperatures, respectively, from day 21 to 42 (Yalçın et al, 2008a(Yalçın et al, ,b, 2012aAkşit et al, 2013).…”

mentioning

confidence: 74%

Effect of prenatal temperature conditioning of laying hen embryos: Hatching, live performance and response to heat and cold stress during laying period

Kamanli

Durmuş

Yalçın

et al. 2015

Journal of Thermal Biology

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Effects of dietary DL-2-hydroxy-4(methylthio)butanoic acid supplementation on growth performance, indices of ascites syndrome, and antioxidant capacity of broilers reared at low ambient temperature

et al. 2016

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This study examined the effects of dietary DL-2-hydroxy-4(methylthio)butanoic acid (DL-HMTBA) supplementation on growth performance, antioxidant capacity, and ascites syndrome (AS) in broilers reared at low ambient temperature (LAT) from 7 to 28 days of age. Eight hundred 7-day-old broilers were randomly assigned to two ambient temperatures (LAT and normal ambient temperature [NAT]), four supplemental DL-HMTBA levels (0.17, 0.34, 0.51, and 0.68 %) of the basal diet in a 2 × 4 factorial arrangement (ten replicate pens; ten birds/pen). LAT and NAT indicate temperatures of 12-14 and 24-26 °C in two chambers, respectively, and broilers were reared at these temperatures from 7 to 28 days of age. LAT significantly decreased body weight gain (P < 0.001), serum glutathione (GSH) content (day 14, P = 0.02; day 28, P = 0.045), glutathione peroxidase (GSH-Px) activity, and total antioxidant capacity (T-AOC) at 21 days (P = 0.001, 0.015) and 28 days (P = 0.017, 0.010) and increased feed conversion ratio (FCR) (P < 0.001), serum malondialdehyde (day 21, P = 0.000) and protein carbonyl Level (day 14, P = 0.003; day 21, P = 0.035). As for incidence of AS, there were significant effects of LAT on red blood cell (RBC) count (P < 0.05), hematocrit (HCT) (P < 0.05), and the right to total ventricular weight ratio (RV/TV) at 21 days (P = 0.012) and 28 days (P = 0.046). Supplementation of DL-HMTBA markedly decreased RV/TV at day 28 (P = 0.021), RBC (day 21, P = 0.008), HCT (day 21, P < 0.001), mean cell hemoglobin (day 14, P = 0.035; day 21, P = 0.003), and serum protein carbonyl level (day 21, P = 0.009), while significantly increased serum GSH content (day 14, P = 0.022; day 28, P = 0.001), SOD and GSH-Px activities at 21 days of age (P < 0.001 and P = 0.037). The optimal supplemental DL-HMTBA levels in basal diet of broilers aged from 7 to 28 days under low or normal temperatures were similar, so the authors recommended supplemental of DL-HMTBA level was 0.46 %.

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Broilers respond to cooler ambient temperatures after temperature acclimation during incubation and early postnatal age

Cited by 16 publications

References 25 publications

Effect of low incubation temperature and low ambient temperature until 21 days of age on performance and body temperature in fast-growing chickens

Effect of low incubation temperature and low ambient temperature until 21 days of age on performance and body temperature in fast-growing chickens

Effect of prenatal temperature conditioning of laying hen embryos: Hatching, live performance and response to heat and cold stress during laying period

Effects of dietary DL-2-hydroxy-4(methylthio)butanoic acid supplementation on growth performance, indices of ascites syndrome, and antioxidant capacity of broilers reared at low ambient temperature

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