ArticleAnimals : an open access journal from MDPI2021
Modeling of Heat Stress in Sows Part 2: Comparison of Various Thermal Comfort Indices.
Article in Animals : an open access journal from MDPI, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 28 citations in OpenAlex.
- Heat Stress Assessment Using Multiple Thermal-Comfort Indices and Its Impact on the Reproductive Performance of Sows and Their Offspring in a Temperate Climate.Veterinary sciences · 2026Article
- Genetic Parameter Estimates and Associations Between Clutch Length and Hen-Day Egg Production Traits in Thai Native Chickens Under Heat Stress.Animals : an open access journal from MDPI · 2026Article
- Dietary Lycopene Mitigates Reproductive Impairment in Heat-Stressed Rongchang Boars: Roles of Antioxidant, Anti-Inflammatory and Nrf2 Pathway.Antioxidants (Basel, Switzerland) · 2026Article
- Prediction and evaluation of environmental quality for nursing sow buildings via multisource sensor information fusion.Scientific reports · 2025Article
- Effect of heat stress on pig production and its mitigation strategies: a review.Tropical animal health and production · 2025Review
- Productive Performance, Physiological Variables, and Carcass Quality of Finishing Pigs Supplemented with Ferulic Acid and Grape Pomace under Heat Stress Conditions.Animals : an open access journal from MDPI · 2023Article
- A behavior and physiology-based decision support tool to predict thermal comfort and stress in non-pregnant, mid-gestation, and late-gestation sows.Journal of animal science and biotechnology · 2022Article
- The Effect of Dietary Leucine Supplementation on Antioxidant Capacity and Meat Quality of Finishing Pigs under Heat Stress.Antioxidants (Basel, Switzerland) · 2022Article
- Effects of Phenolic Phytogenic Feed Additives on Certain Oxidative Damage Biomarkers and the Performance of Primiparous Sows Exposed to Heat Stress under Field Conditions.Antioxidants (Basel, Switzerland) · 2022Article
- Effect of ambient temperature on average daily gain of pigs evaluated using public weather data and a plateau-linear regression model.Animal science journal = Nihon chikusan GakkaihoArticle
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
Heat stress has an adverse effect on the production performance of sows, and causes a large economic loss every year. The thermal environment index is an important indicator for evaluating the level of heat stress in animals. Many thermal indices have been used to analyze the environment of the pig house, including temperature and humidity index (THI), effective temperature (ET), equivalent temperature index of sows (ETIS), and enthalpy (H), among others. Different heat indices have different characteristics, and it is necessary to analyze and compare the characteristics of heat indices to select a relatively suitable heat index for specific application. This article reviews the thermal environment indices used in the process of sow breeding, and compares various heat indices in four ways: (1) Holding the value of the thermal index constant and analyzing the equivalent temperature changes caused by the relative humidity. (2) Analyzing the variations of ET and ETIS caused by changes in air velocity. (3) Conducting a comparative analysis of a variety of isothermal lines fitted to the psychrometric chart. (4) Analyzing the distributions of various heat index values inside the sow barn and the correlation between various heat indices and sow heat dissipation with the use of computational fluid dynamics (CFD) technology. The results show that the ETIS performs better than other thermal indices in the analysis of sows' thermal environment, followed by THI2, THI4, and THI7. Different pigs have different heat transfer characteristics and different adaptability to the environment. Therefore, based on the above results, the following suggestions have been given: The thermal index thresholds need to be divided based on the adaptability of pigs to the environment at different growth stages and the different climates in different regions. An appropriate threshold for a thermal index can provide a theoretical basis for the environmental control of the pig house.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.