Utilization of Infrared Thermography in Assessing Thermal Responses of Farm Animals under Heat Stress

Animals, Год журнала: 2024, Номер 14(4), С. 616 - 616

Опубликована: Фев. 14, 2024

Heat stress is a condition that can affect the health, performance, and welfare of farm animals. The perception thermal leads to activation autonomic nervous system start series physiological behavioral mechanisms restore thermostability. One these vasodilation peripheral blood vessels increase heat loss through skin. Due this aspect, infrared thermography has been suggested as method assess state animals predict rectal temperature values noninvasively. However, it important consider predicting challenging, its association with IRT not always direct linear relationship. present review aims analyze neurobiological response associated how imaging in different windows be used recognize farmed ungulates.

Язык: Английский

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Endocrine effects of heat exposure and relevance to climate change

Nature Reviews Endocrinology, Год журнала: 2024, Номер 20(11), С. 673 - 684

Опубликована: Июль 30, 2024

Язык: Английский

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Welfare of pigs during transport

EFSA Journal, Год журнала: 2022, Номер 20(9)

Опубликована: Сен. 1, 2022

In the framework of its Farm to Fork Strategy, Commission is undertaking a comprehensive evaluation animal welfare legislation. The present Opinion deals with protection pigs during transport. transport by road main focus, but other means are also covered. Current practices related different stages (preparation, loading/unloading, transit and journey breaks) described. Overall, 10 consequences were identified as highly relevant for based on severity, duration frequency occurrence: group stress, handling heat injuries, motion prolonged hunger, thirst, restriction movement, resting problems sensory overstimulation. These their animal-based measures A variety hazards identified, mainly relating factors such mixing unfamiliar pigs, inappropriate methods devices, use pick-up pens, inexperienced/untrained handlers, structural deficiencies vehicles facilities, poor driving conditions, unfavourable microclimatic environmental conditions husbandry leading these consequences. contains general specific conclusions pigs. Recommendations prevent correct or mitigate made. developed define quantitative thresholds minimum space allowance within development over time was assessed in relation maximum duration. covers scenarios European cull sows ‘special health status animals’, lists concerns associated these.

Язык: Английский

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Thermoregulation mechanisms and perspectives for validating thermal windows in pigs with hypothermia and hyperthermia: An overview

Frontiers in Veterinary Science, Год журнала: 2022, Номер 9

Опубликована: Дек. 1, 2022

Specific anatomical characteristics make the porcine species especially sensitive to extreme temperature changes, predisposing them pathologies and even death due thermal stress. Interest in improving animal welfare productivity has led development of various lines research that seek understand effect certain environmental conditions on impact implementing strategies designed mitigate adverse effects. The non-invasive infrared thermography technique is one tools most widely used carry out these studies, based detecting changes microcirculation. However, evaluations using this tool require reliable windows; can be challenging because several factors affect sensitivity specificity regions selected. This review discusses windows with domestic pigs association thermoregulatory capacity piglets hogs.

Язык: Английский

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Gut Health and Influencing Factors in Pigs

Animals, Год журнала: 2023, Номер 13(8), С. 1350 - 1350

Опубликована: Апрель 14, 2023

The gastrointestinal tract (GIT) is a complex, dynamic, and critical part of the body, which plays an important role in digestion absorption ingested nutrients excreting waste products digestion. In addition, GIT also vital preventing entry harmful substances potential pathogens into bloodstream. hosts significant number microbes, throughout their metabolites, directly interact with hosts. modern intensive animal farming, many factors can disrupt functions. As dietary biologically active play roles maintaining homeostasis eubiosis GIT, this review aims to summarize current status our knowledge on most areas.

Язык: Английский

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Genetic diversity and selection signatures in Hainan black goats revealed by whole-genome sequencing data

animal, Год журнала: 2024, Номер 18(6), С. 101147 - 101147

Опубликована: Март 28, 2024

Understanding the genetic characteristics of indigenous goat breeds is crucial for their conservation and breeding efforts. Hainan black goats, as a native breed south China's tropical island province Hainan, possess distinctive traits such hair, moderate growth rate, good meat quality, small body size. However, they exhibit exceptional resilience to rough feeding conditions, high-quality meat, show remarkable resistance stress heat. In this study, we resequenced whole genome goats study economic basis these leveraged whole-genome sequencing data from 33 analyze single nucleotide polymorphism(SNP) density, Runs homozygosity (ROH), Integrated Haplotype Score (iHS), effective population size (Ne), Nucleotide diversity Analysis (Pi) selection characteristics. Our findings revealed that harbor substantial degree variation, with total 23 608 983 polymorphisms (SNPs) identified. ROHs identified 53 710 segments, predominantly composed short fragments, inbreeding events mainly occurring in ancient ancestors, estimates based on ROH typically values ranging 0.107 0.186. This primarily attributed significant declines over recent generations. Moreover, 921 candidate genes within intersection region iHS. Several are associated immunity (PTPRC, HYAL1, HYAL2, HYAL3, CENPE PKN1), heat tolerance (GNG2, MAPK8, CAPN2, SLC1A1 LEPR), quality (ACOX1, SSTR1, CAMK2B, PPP2CA PGM1), cashmere production (AKT4, CHRM2, OXTR, AKT3, HMCN1 CDK19), (TLR2, IFI44, ENPP1, STK3 NFATC1). The presence may be adaptation local climate conditions. insights gained provide valuable references solid foundation preservation, breeding, utilization resources.

Язык: Английский

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Applicability evaluation of a temperature humidity index-controlled ventilation system in livestock using a building energy simulation model

Case Studies in Thermal Engineering, Год журнала: 2024, Номер 57, С. 104335 - 104335

Опубликована: Апрель 6, 2024

In general, for livestock building, a simple system controlling the HVAC that is based only on indoor air temperature applied. This study evaluated applicability of humidity index (THI)-based ventilation systems installed in buildings using building energy simulation model. Based monitoring data an actual pig house, integrated predictive performance and model was calibrated. Additionally, environment existing temperature-based control THI-controlled compared through simulations. The average THI section exceeding threshold were both lower to system. because part load ratio fans higher than system, indicating better ventilation. These results suggest THI-based can overcome limitations effectively improve thermal stress management buildings. portrays be improved by simply changing variables, while presenting field research value environments.

Язык: Английский

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Body Temperature Regulation in Domestic Dogs After Agility Trials: The Effects of Season, Training, Body Characteristics, Age, and Genetics

Journal of Experimental Zoology Part A Ecological and Integrative Physiology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 16, 2025

ABSTRACT An animal's body mass is said to be indirectly related its rate of heat loss; that is, smaller animals with higher surface area volume tend lose faster than larger animals. Thus, thermoregulation should size, however, generalizable patterns are still unclear. Domestic dogs a diverse species endothermic mammals, including 44‐fold difference in size. Previous work sedentary has determined size and other morphological variables predict the exercising pet dogs. Here, we aimed address three questions: (1) whether thermoregulatory differences domestic across seasons dictated strictly by external environmental temperatures or if individual thermal acclimation affected seasonal temperature variation, even indoors; (2) athleticism (or training experience) affects changes dogs, as it does humans; (3) genetic basis. We obtained tympanic membrane (T ear ) images measure change eyes, mouth, nose athletic following an indoor agility trial. Additionally, used image analysis determine morphology differences. found play strong role winter trials mouth p = 0.017, T 0.052) but less determinate summer trials. distinct between summer. Particularly, coat length may different roles seasons. rates differ interaction experience ( 0.044), suggesting depend on relative athleticism. Lastly, important predictors rate, such GORAB IGF1, well others exert influence over mitochondrial function, characteristics. These markers indicate similar our whole‐animal physiological results. Overall, data suggest demonstrate seasons, size‐related genes associated

Язык: Английский

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Effect of heat stress on pig production and its mitigation strategies: a review

Tropical Animal Health and Production, Год журнала: 2025, Номер 57(3)

Опубликована: Март 21, 2025

Язык: Английский

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Heat/Cold Stress and Methods to Mitigate Its Detrimental Impact on Pork and Poultry Meat: A Review

Foods, Год журнала: 2024, Номер 13(9), С. 1333 - 1333

Опубликована: Апрель 26, 2024

This paper aims to provide an updated review and current understanding of the impact extreme temperatures—focusing on heat stress (HS)—on quality pork poultry meat, particularly amidst unprecedented global rise in environmental temperatures. Acute or chronic HS can lead development pale, soft, exudative (PSE) meat during short transportation dark, firm, dry (DFD) associated with long seasonal changes meat. While is more likely result PSE cold (CS) commonly linked DFD Methods aimed at mitigating effects include showering (water sprinkling/misting) transport, as well control adequate ventilation rates truck, which not only improve animal welfare but also reduce mortality incidence To mitigate CS, bedding trailers closing tracks’ curtains (insulation) are viable strategies. Ongoing efforts minimize deterioration due CS must prioritize livestock focus scaleup laboratory testing commercial applications.

Язык: Английский

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