Effects of recovery from short-term heat stress exposure on feed
                    intake, plasma amino acid profiles, and metabolites in growing
                    pigs

Kim, Byeonghyeon; Reddy, Kondreddy Eswar; Kim, Hye Ran; Kim, Ki Hyun; Lee, Yoo Kyung; Kim, Minji; Ji, Sang Yun; Lee, Sung Dae; Jeong, Jin Young

doi:10.5187/jast.2021.e53

Cited by 6 publications

(7 citation statements)

References 33 publications

(50 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, it should be noted that the compensatory response was not enough to allow a similar meal size compared to pigs under TN conditions. Although pigs exhibit adaptive FB, the time required for FI recovery after exposure to HS to reach a similar level to that of TN pigs can vary between 2 and 5 days [28,29,30]. However, factors related to the physical capacity of the pigs´ digestive tract and the impact of successive heat waves might not have allowed a full recovery of feed consumption in the current study.…”

Section: Discussionmentioning

confidence: 83%

“…For feed delivery, the chip in the right ear is identified when each pig introduces its head into the feeder, and when the pig triggers a push button to demand feed, the AIPF delivers a service to each requestion. The service was set to deliver the feed according to the experimental phase (EP), with 20 g during EP1 (0-20 days, 68 to 93 kg of BW) and 23 g during EP2 (21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37)(38) Days 93 to 111 kg of BW). The size of the service was adjusted to be less than 150 services per pig per day following the manufacturer's recommendation.…”

Section: Data Sourcementioning

confidence: 99%

See 1 more Smart Citation

Feeding Behavior of Finishing Pigs under Diurnal Cyclic Variation in Ambient Temperature

Oliveira¹,

Valk²,

Melo³

et al. 2023

Preprint

View full text Add to dashboard Cite

The impact of cyclic heat stress (CHS) and lighting events on pig feeding behavior (FB) was investigated. The FB of 90 gilts was recorded in real time under two ambient temperatures (AT): thermoneutrality (TN, 22 °C) or CHS (22°/35 °C). The day was divided into four periods: PI (06-08 h); PII (08-18 h); PIII (18-20 h); and PIV (20-06 h). Automatic and Intelligent Precision Feeders recorded each feed event for each pig. An estimated meal criterion (49 minutes) was used to calculate the FB variables. Feed behavior in both ATs followed a circadian pattern. The CHS reduced the feed intake by 6.9%. Pigs prioritized feed intake during the coolest hours of the day; however, nocturnal cooling did not allow the pigs to compensate for the reduced meal size due to CHS. The highest meal size and most of the meals were observed during the lighting-on period. Pigs reduced their interval between meals during periods II and III. The lighting program increased the meal size when the lights were switched on and reduced the meal size when the lights were switched off. Thus, the dynamics of the FB were largely influenced by AT, while the meal size was affected by the lighting program.

show abstract

Section: Discussionmentioning

confidence: 83%

Section: Data Sourcementioning

confidence: 99%

Feeding Behavior of Finishing Pigs under Diurnal Cyclic Variation in Ambient Temperature

Oliveira¹,

Valk²,

Melo³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…However, this hypothesis is currently questioned because other works suggested that HS itself may induce other metabolic alterations caused by intestinal barrier disruption, inflammatory state, postabsorptive metabolism and endocrine responses (Liu et al, 2022; Qaid & Al‐Garadi, 2021). In addition, HS seems to cause oxidative stress and mitochondrial dysfunction by increasing ROS production in muscle cells (Kikusato & Toyomizu, 2013; Kim et al, 2021), whose intracellular signal transduction contributes to protein catabolism. It is noteworthy that pigs with higher genetic potential for lean growth, as well as heavier and older pigs appear to have less tolerance to HS (Renaudeau et al, 2011).…”

Section: Factors Influencing Protein Turnover Ratesmentioning

confidence: 99%

Protein turnover in pigs: A review of interacting factors

Sarri,

Balcells,

Seradj

et al. 2023

Animal Physiology Nutrition

View full text Add to dashboard Cite

Protein turnover defines the balance between two continuous and complex processes of protein metabolism, synthesis and degradation, which determine their deposition in tissues. Although the liver and intestine have been studied extensively for their important roles in protein digestion, absorption and metabolism, the study of protein metabolism has focused mainly on skeletal muscle tissue to understand the basis for its growth. Due to the high adaptability of skeletal muscle, its protein turnover is greatly affected by different internal and external factors, contributing to carcass lean‐yield and animal growth. Amino acid (AA) labelling and tracking using isotope tracer methodology, together with the study of myofiber type profiling, signal transduction pathways and gene expression, has allowed the analysis of these mechanisms from different perspectives. Positive stimuli such as increased nutrient availability in the diet (e.g., AA), physical activity, the presence of certain hormones (e.g., testosterone) or a more oxidative myofiber profile in certain muscles or pig genotypes promote increased upregulation of translation and transcription‐related genes, activation of mTORC1 signalling mechanisms and increased abundance of satellite cells, allowing for more efficient protein synthesis. However, fasting, animal aging, inactivity and stress, inflammation or sepsis produce the opposite effect. Deepening the understanding of modifying factors and their possible interaction may contribute to the design of optimal strategies to better control tissue growth and nutrient use (i.e., protein and AA), and thus advance the precision feeding strategy.

show abstract

“…Oxidative stress can be viewed as an imbalance between prooxidants and antioxidants in the body [1]. Various stress can adversely affect the structure and physiology of cells, causing impairment of transcription, RNA processing, translation, oxidative metabolism, membrane structure, and function [2,3]. Under normal conditions, A C C E P T E D intracellular levels of reactive oxygen species (ROS) are maintained at low levels by various antioxidant systems [4].…”

Section: Introductionmentioning

confidence: 99%

Effects of functional nutrients on chicken intestinal epithelial cells induced with oxidative stress

Kim¹,

Lee²,

Hur³

et al. 2023

J Anim Sci Technol

View full text Add to dashboard Cite

show abstract

Effects of recovery from short-term heat stress exposure on feed intake, plasma amino acid profiles, and metabolites in growing pigs

Abstract: Effects of recovery from short-term heat stress exposure on feed intake, plasma amino acid profiles, and metabolites in growing pigs Running Title (within 10 words) Effects of heat stress on plasma amino acids and metabolites

Cited by 6 publications

References 33 publications

Feeding Behavior of Finishing Pigs under Diurnal Cyclic Variation in Ambient Temperature

Feeding Behavior of Finishing Pigs under Diurnal Cyclic Variation in Ambient Temperature

Protein turnover in pigs: A review of interacting factors

Effects of functional nutrients on chicken intestinal epithelial cells induced with oxidative stress

Contact Info

Product

Resources

About