Impacts of heat stress on meat quality and strategies for amelioration: a review

Zhang, Minghao; Dunshea, Frank R.; Warner, R. D.; DiGiacomo, Kristy; Osei-Amponsah, Richard; Chauhan, Surinder S.

doi:10.1007/s00484-020-01929-6

Cited by 67 publications

(61 citation statements)

References 144 publications

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“…Previous study defines, heat stress is a condition, while an animal cannot dissipate their body temperature in the surrounding due to comparative higher temperature in the environment 2 . In addition, the heat stress is classified into acute and chronic stress based on heat exposure duration, whereas acute heat stress refers to short period heat exposure and chronic heat stress refer to extended periods of heat exposure 3 . Furthermore, the summer season is extending due to climate changes.…”

Section: Introductionmentioning

confidence: 99%

Chronic heat stress regulates the relation between heat shock protein and immunity in broiler small intestine

Siddiqui

Kang

Park

et al. 2020

Sci Rep

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Chronic heat stress is considered to decrease the immune functions which makes negative effect on broiler growth performance. Here, we investigated the relationship between chronic heat stress, growth performance, and immunity in the small intestine of broilers. The study included two groups (control and heat stressed group) with eight replications per group. Ten broilers of 20-day aged were allocated in each replication. On day 35, the treatment group was subdivided into two groups based on their body weights (heavy and low body weight). Although, there was only the control and treatment group on day 28. The growth performance decreased and expression of heat shock protein 70 (HSP70), HSP60, and HSP47 increased on days 28 and 35 in the chronic heat stress group as compared with those in the control group. The expression levels of HSPs were significantly higher in the low body weight group than in the control group. The genes HSP70 and HSP60 were significantly associated with pro- and anti-inflammatory cytokines in the small intestine of the broilers of the treatment group. Thus, HSP70 and HSP60 activated the adaptive immunity in the small intestines of the broilers from the treatment group to allow adaptation to chronic heat stress environment.

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Section: Introductionmentioning

confidence: 99%

Chronic heat stress regulates the relation between heat shock protein and immunity in broiler small intestine

Siddiqui

Kang

Park

et al. 2020

Sci Rep

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“…Similarly, pork quality may decline. For example, an alteration of carcass composition and an increase in the risk of occurrence of pale, soft, exudative (PSE) meat in pigs can be expected [64,65] and may reduce revenue. In pigs, decreased carcass quality as a consequence of heat stress is reflected by pork processing problems due to a flimsier adipose tissue, increased lipid and decreased protein content [36,66].…”

Section: Discussionmentioning

confidence: 99%

Economic Risk Assessment by Weather-Related Heat Stress Indices for Confined Livestock Buildings: A Case Study for Fattening Pigs in Central Europe

et al. 2021

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In the last decades, farm animals kept in confined and mechanically ventilated livestock buildings have been increasingly confronted with heat stress (HS) due to global warming. These adverse conditions cause a depression of animal health and welfare and a reduction of the performance up to an increase in mortality. To facilitate sound management decisions, livestock farmers need relevant arguments, which quantify the expected economic risk and the corresponding uncertainty. The economic risk was determined for the pig fattening sector based on the probability of HS and the calculated decrease in gross margin. The model calculation for confined livestock buildings showed that HS indices calculated by easily available meteorological parameters can be used for assessment quantification of indoor HS, which has been difficult to determine. These weather-related HS indices can be applied not only for an economic risk assessment but also for weather-index based insurance for livestock farms. Based on the temporal trend between 1981 and 2017, a simple model was derived to assess the likelihood of HS for 2020 and 2030. Due to global warming, the return period for a 90-percentile HS index is reduced from 10 years in 2020 to 3–4 years in 2030. The economic impact of HS on livestock farms was calculated by the relationship between an HS index based on the temperature-humidity index (THI) and the reduction of gross margin. From the likelihood of HS and this economic impact function, the probability of the economic risk was determined. The reduction of the gross margin for a 10-year return period was determined for 1980 with 0.27 € per year per animal place and increased by 20-fold to 5.13 € per year per animal place in 2030.

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“…Similarly, pork quality may decline. For example, an alteration of carcass composition and an increase in the risk of occurrence of pale, soft, exudative (PSE) meat in pigs can be expected [59,60] and may reduce the revenue. In pigs, decreased carcass quality as the consequence of heat stress is reflected by pork processing problems due to a more flimsy adipose tissue and in general increased lipid and decreased protein content [10,61].…”

Section: Discussionmentioning

confidence: 99%

Economic Risk Assessment by Weather-Related Heat Stress Indices for Confined Livestock Buildings: A Case Study for Fattening Pigs in Central Europe

Schauberger¹,

Schönhart²,

Zollitsch³

et al. 2020

Preprint

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In the last decades farm animals kept in confined and mechanically ventilated livestock buildings are increasingly confronted with heat stress (HS) due to global warming. These adverse conditions cause a depression of animal health and welfare and a reduction of the performance up to an increase of the mortality. To facilitate sound management decisions, livestock farmers need relevant arguments, which quantify the expected economic risk and the corresponding uncertainty. The economic risk was determined for the pig fattening sector based on the probability of HS and the calculated decrease in the gross margin. The model calculation for confined livestock buildings showed, that HS indices calculated by easily available meteorological parameters can be used for assessment quantification of indoor HS, which is so far difficult to determine. These weather-related HS indices can be applied not only for an economic risk assessment but also for a weather-index based insurance for livestock farms. Based on the temporal trend between 1981 and 2017, a simple model was derived to assess the likelihood of HS for 2020 and 2030. Due to global warming, the return period for a 90-percentile HS index is reduced from 10 years in 2020 to 3-4 years in 2030. The economic impact of HS on livestock farms was calculated by the relationship between an HS index based on the temperature-humidity index (THI) and the reduction of the gross margin. From the likelihood of the HS and this economic impact function, the probability of the economic risk could be determined. The reduction of the gross margin for a 10 year return period was determined for 1980 with 0.27 € per year and animal place and increased by the 20-fold to 5.13 € per year and animal place in 2030.

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Impacts of heat stress on meat quality and strategies for amelioration: a review

Abstract: This is a repository copy of Impacts of heat stress on meat quality and strategies for amelioration: a review.

Cited by 67 publications

References 144 publications

Chronic heat stress regulates the relation between heat shock protein and immunity in broiler small intestine

Chronic heat stress regulates the relation between heat shock protein and immunity in broiler small intestine

Economic Risk Assessment by Weather-Related Heat Stress Indices for Confined Livestock Buildings: A Case Study for Fattening Pigs in Central Europe

Economic Risk Assessment by Weather-Related Heat Stress Indices for Confined Livestock Buildings: A Case Study for Fattening Pigs in Central Europe

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