Effect of Thermal Stimulation in Embryos From Cobb®genetic Strain Under Commercial Scale

Flores, Fernanda; Nääs, Irenilza de Alencar; Garcia, Rodrigo Garófallo

doi:10.1590/1809-4430-eng.agric.v37n2p236-245/2017

Cited by 2 publications

(1 citation statement)

References 25 publications

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“…Broilers incubated at high temperatures between ED 7–10 or ED 10–13 at 38.8 °C had the most significant body weight than the eggs incubated at 37.8 and 36.8 °C, respectively [ 92 ]. During incubation, chicks exposed to 1.39 °C above the standard suggested temperature at ED 14–18 had better quality and performance [ 93 ]. These studies showed a higher egg yolk weight at hatch.…”

Section: Effect Of Tm On Poultry Health and Productionmentioning

confidence: 99%

Embryonic thermal manipulation: a potential strategy to mitigate heat stress in broiler chickens for sustainable poultry production

Al Amaz,

Mishra

2024

J Animal Sci Biotechnol

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Due to high environmental temperatures and climate change, heat stress is a severe concern for poultry health and production, increasing the propensity for food insecurity. With climate change causing higher temperatures and erratic weather patterns in recent years, poultry are increasingly vulnerable to this environmental stressor. To mitigate heat stress, nutritional, genetic, and managerial strategies have been implemented with some success. However, these strategies did not adequately and sustainably reduce the heat stress. Therefore, it is crucial to take proactive measures to mitigate the effects of heat stress on poultry, ensuring optimal production and promoting poultry well-being. Embryonic thermal manipulation (TM) involves manipulating the embryonic environment’s temperature to enhance broilers’ thermotolerance and growth performance. One of the most significant benefits of this approach is its cost-effectiveness and saving time associated with traditional management practices. Given its numerous advantages, embryonic TM is a promising strategy for enhancing broiler production and profitability in the poultry industry. TM increases the standard incubation temperature in the mid or late embryonic stage to induce epigenetic thermal adaption and embryonic metabolism. Therefore, this review aims to summarize the available literature and scientific evidence of the beneficial effect of pre-hatch thermal manipulation on broiler health and performance.

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Section: Effect Of Tm On Poultry Health and Productionmentioning

confidence: 99%

Embryonic thermal manipulation: a potential strategy to mitigate heat stress in broiler chickens for sustainable poultry production

Al Amaz,

Mishra

2024

J Animal Sci Biotechnol

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Incubation variables, performance, and morphometry of the duodenal mucosa of Japanese quails (Coturnixcoturnix japonica) submitted to different incubation temperatures and thermally challenged after hatching

Porto

Teófilo

Cavalcanti

et al. 2021

Arq. Bras. Med. Vet. Zootec.

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This study aimed to evaluate the effects of different temperatures on incubation variables, performance, and morphometry of the duodenal mucosa of Japanese quails (Coturnix coturnix japonica) submitted to chronic heat stress after hatching. We distributed 540 eggs in three incubators with a temperature of 37.8°C and 60% of humidity. From the 6th day of incubation until hatching, the temperatures were adjusted to (37.8°C, 38.5°C and 39.5°C). After hatching, quails were evaluated for the quality score, weighed, and distributed in a completely randomized design with three incubation temperatures (37.8, 38.5, and 39.5°C) and two ambient temperatures (stress and thermoneutral). At 10, 20, 30, and 40 days they were weighed to determine the live weight (g) and weight gain(g). To collect the duodenum and determine morphometric parameters, we euthanized four quails of each treatment. The data were analyzed, and the differences between the means determined by the Tukey test at 5%. The incubation temperature of 39.5°C provided lower hatching rate and the live weight at birth; however, from the 10th day of age, increased live weight, weight gain, and positively influenced the morphological parameters of the duodenal mucosa in situations of chronic stress.

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Effect of Thermal Stimulation in Embryos From Cobb®genetic Strain Under Commercial Scale

Cited by 2 publications

References 25 publications

Embryonic thermal manipulation: a potential strategy to mitigate heat stress in broiler chickens for sustainable poultry production

Embryonic thermal manipulation: a potential strategy to mitigate heat stress in broiler chickens for sustainable poultry production

Incubation variables, performance, and morphometry of the duodenal mucosa of Japanese quails (Coturnixcoturnix japonica) submitted to different incubation temperatures and thermally challenged after hatching

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