Impact of heat stress on poultry production

Biswal, Jyotsnarani; Vijayalakshmy, Kennady; K, Bhattacharya T.; Rahman, Habibar

doi:10.1080/00439339.2022.2003168

Cited by 33 publications

(15 citation statements)

References 100 publications

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“…Indeed, global climate change associated with HS has more detrimental effects on poultry performance than on mammals owing to the lack of sweat glands, resulting in significant economic loss and raising global concerns for the broiler industry. HS play an important role in physiological disorders, especially intestinal barrier failure, inducing LP, generating ROS, DNA degradation, mitochondrial dysfunction, cell membrane damage, and inactivation of transport enzymes ( Calefi et al, 2017 ; Biswal et al, 2022 ). Heat stress is one of the most common environmental factors affecting the gut health of poultry, including physiology, integrity, immunology, and microbiota ( Rostagno, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Ethoxyquin attenuates enteric oxidative stress and inflammation by promoting cytokine expressions and symbiotic microbiota in heat-stressed broilers

Elokil,

Li,

Chen

et al. 2024

Poultry Science

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Section: Discussionmentioning

confidence: 99%

Ethoxyquin attenuates enteric oxidative stress and inflammation by promoting cytokine expressions and symbiotic microbiota in heat-stressed broilers

Elokil,

Li,

Chen

et al. 2024

Poultry Science

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“…In the Brazilian semi-arid, dry weather occurs between July to December, with high mean temperatures over 26 ºC, and maximum temperatures over 32 ºC (INMET, 2010). Chicken submitted to heat stress reduces growth and egg production all over the world (Biswal et al, 2022). The immune organs of chicks at different ages submitted to heat stress of displayed significant atrophy and edema, necrosis of bursa cells and reduced both cell-mediated and humoral immunity (Li et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

Prevalence of endoparasites by microscopic analysis in free-range chickens in a Brazilian semiarid region

Silva

Alvares

Oliveira

et al. 2022

Rev. Bras. Parasitol. Vet.

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The aim of this study was to evaluate the prevalence and diversity of endoparasitic fauna and the risk factors associated with parasite infections in free-range chickens in the state of Paraíba, northeastern Brazil. Ten municipalities were visited and, in each of them, ten farms, to collect animal feces and apply epidemiological questionnaires. Feces from 417 poultry were used to perform EPG (eggs per gram) and OoPG (oocysts per gram) tests. Prevalences of 40.52% (169/417) and 39.08% (163/417) were observed for nematodes and coccidia, respectively. In 17% (71/417), mixed infections by nematodes and coccidia were observed. Nematodes of Heterakoidea superfamily were present in 100% of the positive samples (169/169), followed by Trichuris spp. (57.3%; 97/169). All the protozoan oocysts observed belonged to the genus Eimeria (100%; 163/163). The variable of presence of drooping wings was considered to be a factor associated with infection by coccidia (odds ratio = 5.412; confidence interval: 1.179-24.848; p = 0.030). It was concluded that there is high prevalence of nematodes and coccidia in free-range chickens in the state of Paraíba, Brazil. Better sanitary management measures, with greater hygiene of facilities, together with chemical control of parasites, can improve productivity by reducing the rate of gastrointestinal parasites.

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“…The hens at the back end were in a higher ambient temperature than those at the front end. The heat stress of high temperatures affected hen health and egg production [24]. The velocity distribution in the house affected the temperature distribution.…”

Section: Fan Models Vs Heat Accumulation In Laying Housementioning

confidence: 99%

Assessing Indoor Climate Control in a Water-Pad System for Small-Scale Agriculture in Taiwan: A CFD Study on Fan Modes

et al. 2023

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Heat stress poses a significant challenge to egg production in layer hens. High temperatures can disrupt the physiological functions of these birds, leading to reduced egg production and lower egg quality. This study evaluated the microclimate of laying hen houses using different management systems to determine the impact of heat stress on productivity and hen health. The results showed that the ALPS system, which manages the hen feeding environment, effectively improved productivity and decreased the daily death rate. In the traditional layer house, the daily death rate decreased by 0.045%, ranging from 0.086% to 0.041%, while the daily production rate increased by 3.51%, ranging from 69.73% to 73.24%. On the other hand, in a water-pad layer house, the daily death rate decreased by 0.033%, ranging from 0.082% to 0.049%, while the daily production rate increased by 21.3%, ranging from 70.8% to 92.1%. The simplified hen model helped design the indoor microclimate of commercial layer houses. The average difference in the model was about 4.4%. The study also demonstrated that fan models lowered the house’s average temperature and reduced the impact of heat stress on hen health and egg production. Findings indicate the need to control the humidity of inlet air to regulate temperature and humidity, and suggest that Model 3 is an energy-saving and intelligent solution for small-scale agriculture. The humidity of the inlet air affects the temperature experienced by the hens. The THI drops to the alert zone (70–75) when humidity is below 70%. In subtropical regions, we consider it necessary to control the humidity of the inlet air.

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Impact of heat stress on poultry production

Cited by 33 publications

References 100 publications

Ethoxyquin attenuates enteric oxidative stress and inflammation by promoting cytokine expressions and symbiotic microbiota in heat-stressed broilers

Ethoxyquin attenuates enteric oxidative stress and inflammation by promoting cytokine expressions and symbiotic microbiota in heat-stressed broilers

Prevalence of endoparasites by microscopic analysis in free-range chickens in a Brazilian semiarid region

Assessing Indoor Climate Control in a Water-Pad System for Small-Scale Agriculture in Taiwan: A CFD Study on Fan Modes

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