Article
Multidisciplinary Sciences
Nausicaa Poullet, Wendy M. Rauw, David Renaudeau, Juliette Riquet, Mario Giorgi, Yvon Billon, Helene Gilbert, Jean-Luc Gourdine
Summary: This study evaluated the effects of different climatic environments on feeding behavior in growing pigs. Results showed that pigs in tropical humid conditions had more frequent but smaller meals, resulting in lower daily feed intake and less time spent eating per day. Feeding behavior traits were influenced by interactions between sire families and environments, and feeding rate may be a good indicator of heat tolerance.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Margarete Cristiane de Costa Trindade Amorim, Vincent Dubreuil, Amanda Trindade Amorim
Summary: Urbanization causes changes in the landscape and leads to the generation of heat islands, with varying characteristics and intensities due to factors such as land use, climate, and meteorological conditions. This research compares and analyzes atmospheric and surface heat islands in Presidente Prudente, Brazil and Rennes, France, showing that different urban environments have different impacts on the formation and dynamics of heat islands.
Review
Veterinary Sciences
Jean-Luc Gourdine, Wendy Mercedes Rauw, Helene Gilbert, Nausicaa Poullet
Summary: Heat stress affects pig performance and welfare, genetic selection for heat tolerance is a promising long-term option. Genetic studies on thermoregulation in pigs and challenges in improving heat tolerance are discussed in this review.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Article
Agricultural Engineering
Tao Huang, Li Rong, Guoqiang Zhang, Pia Brandt, Bjarne Bjerg, Poul Pedersen, Simon W. Y. Granath
Summary: This study developed a two-node mechanistic model to predict the effect of ambient thermal environments on pigs, providing a more detailed modeling of the thermo-physiological processes of the pigs compared to existing models.
BIOSYSTEMS ENGINEERING
(2021)
Article
Agronomy
Xing Huang, Su Jang, Backki Kim, Zhongze Piao, Edilberto Redona, Hee-Jong Koh
Summary: The study showed that both environment and genotype x environment interaction significantly affect rice yield and yield-component traits, with GEI explaining 37.1% of yield variation. Through multiple environment trials of over 80 rice varieties, 19 desirable genotypes were identified with high productivity and broad adaptability to different climates.
Article
Agriculture, Dairy & Animal Science
Marllon Jose Karpeggiane de Oliveira, Antonio Diego Brandao Melo, Danilo Alves Marcal, Graziela Alves da Cunha Valini, Cleslei Alisson Silva, Alini Mari Veira, Alicia Zem Fraga, Pedro Righetti Arnaut, Paulo Henrique Reis Furtado Campos, Luan Sousa dos Santos, John Khun Kyaw Htoo, Henrique Gastmann Brand, Luciano Hauschild
Summary: High temperature and humidity are detrimental to pig production. Adjusting protein and amino acid content in feed can mitigate the negative effects of heat stress. Decreasing protein levels and supplementing amino acids can reduce nitrogen excretion and contribute to more sustainable pig production.
JOURNAL OF ANIMAL SCIENCE
(2023)
Article
Biology
Clovis Chabert, Aurelie Collado, Olivier Hue
Summary: Practicing physical activity in a hot and humid climate is common due to climate change and sports events in warm countries. This study found that breathing cooler air during cycling exercise in this climate can reduce discomfort and improve performance, as air temperature perception directly impacts training sessions and performance.
Article
Biology
Alvin Pengshi Tan, Chee Hoong Cheong, Tong Lee, Kok Yong Seng, Chiang Juay Teo
Summary: Physiologically based thermoregulatory models, such as the SCENARIO model, are useful for predicting heat strain during high-intensity physical tasks under hot and humid conditions. The optimized SCENARIO model showed good accuracy in predicting body core temperature, with bias, RMSD, RMSD-Mean, and SDP values indicating strong performance both during in-sample analysis and external validation. Future work to further validate the model with new data and enhance it for more accurate simulations of other heat strain markers is recommended.
COMPUTERS IN BIOLOGY AND MEDICINE
(2021)
Article
Plant Sciences
Zhiqin Sang, Hui Wang, Yuxin Yang, Zhanqin Zhang, Xiaogang Liu, Zhiwei Li, Yunbi Xu
Summary: Epistasis has a strong impact on the performance of superior maize hybrids, particularly in temperate by tropical hybrids. Genome-wide prediction and association mapping revealed that epistatic effects play a prominent role in photosynthesis, biological transcription pathways, and protein synthesis. Multiple-hybrid population design enhanced our understanding of heterosis in maize and provided insight for accelerating hybrid maize breeding by activating epistatic effects.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Sport Sciences
J. Luke Pryor, Robert Garcia Leija, Jacobo Morales, Adam W. Potter, David P. Looney, Riana R. Pryor, David Hostler, Kristen C. Cochrane-Snyman
Summary: Verification tests in a hot environment confirmed the VO2max obtained from a graded exercise test (GXT) in nearly all participants, indicating strong utility. However, there was a significant difference in VO2max between the verification test and GXT, with wide variability and potential reliability issues observed. Recommendations for work rate and recovery protocol between tests were provided to enhance test-retest reliability in a hot environment.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2021)
Article
Ecology
Martha M. Munoz, Kenneth J. Feeley, Patrick H. Martin, Vincent R. Farallo
Summary: Research suggests that some lizard species in tropical montane ecosystems may benefit from longer potential activity hours and reduced cold stress under warming, without heightened exposure to heat stress. This mismatch between warm-adapted ecology and cool environments may contribute to these unexpected findings.
FUNCTIONAL ECOLOGY
(2022)
Article
Biophysics
Monanki Podder, Santanu Bera, Syamal Naskar, Dharma Sahu, Joydip Mukherjee, Amlan Kumar Patra
Summary: The present study investigated the effect of seasonal heat stress on the physiological, behavioral, and blood bio-chemical profile of adult Ghoongroo pigs. The results showed that the pigs experienced significant heat stress during the summer season. The different physiological groups of pigs exhibited variations in rectal temperature, pulse rate, and respiration rate. Overall, heat stress had physiological, blood bio-chemical, and behavioral effects on the pigs.
INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
(2022)
Article
Multidisciplinary Sciences
Jefferson F. C. Rodrigues, Thiago T. Mendes, Patricia F. Gomes, Emerson Silami-Garcia, Fabiano T. Amorim, Mario N. O. Sevilio, Fabricio E. Rossi, Samuel P. Wanner
Summary: Environmental heat stress reduces endurance performance and increases perceived exertion and body core temperature. However, the time course of these responses during self-paced running and their effects on post-exercise neuromuscular fatigue in different temperatures are not well understood. This study compared the physiological and perceptual responses during self-paced running at temperate (25 degrees C) and hot (35 degrees C) conditions, and found that despite the slower pace and higher perceived exertion at 35 degrees C, post-exercise neuromuscular fatigue was similar between the two temperatures.
Article
Reproductive Biology
Padet Tummaruk, Kridtasak Sang-Gassanee, Chairach Audban, Somjit Pichitpantapong, Raphee Panyathong, Hongyao Lin, Fabio De Rensis
Summary: The study evaluated the reproductive performance of gilts using fixed-time artificial insemination (FTAI) protocol. The results showed that gilts treated with altrenogest for 18 days, followed by administration of GnRH 120 hours after altrenogest withdrawal and double fixed-time AI, had similar conception rate, farrowing rate, and litter performances compared to gilts inseminated at oestrus with conventional AI.
Article
Sport Sciences
J. Luke Pryor, Peter Lao, Robert G. Leija, Sergio Perez, Jacobo Morales, David P. Looney, Kristen C. Cochrane-Snyman
Summary: This study assessed the V?O-2 uptake obtained during a graded exercise test (GXT) and subsequent verification phase in untrained participants in a hot environment. The results showed that very few untrained males achieved a V?O-2 plateau during GXT in the heat. Therefore, when conducting GXT in a hot condition, the verification phase remains a valuable addition to confirm V?O-2max in untrained males.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2023)
Article
Agriculture, Dairy & Animal Science
T. Soleimani, H. Gilbert
Article
Agriculture, Dairy & Animal Science
V. Deru, A. Bouquet, C. Hassenfratz, B. Blanchet, C. Carillier-Jacquin, H. Gilbert
Article
Agriculture, Dairy & Animal Science
Ingrid David, Amir Aliakbari, Vanille Deru, Herve Garreau, Helene Gilbert, Anne Ricard
JOURNAL OF ANIMAL BREEDING AND GENETICS
(2020)
Article
Agriculture, Dairy & Animal Science
Vanille Deru, Alban Bouquet, Etienne Labussiere, Philippe Ganier, Benoit Blanchet, Celine Carillier-Jacquin, Helene Gilbert
Summary: The study investigated the impact of alternative HF diets on pig digestibility, showing that pigs fed the HF diet had lower digestibility coefficients. Digestibility coefficients were moderately to highly heritable in both CO and HF diets, with favorable genetic correlations with feed conversion ratio but unfavorable correlations with average daily gain and carcass yield.
JOURNAL OF ANIMAL BREEDING AND GENETICS
(2021)
Review
Agriculture, Dairy & Animal Science
Gisele Alexandre, Lylian Rodriguez, Javier Arece, Jose Delgadillo, Gary Wayne Garcia, Kurt Habermeier, Andre M. Almeida, Audrey Fanchone, Jean-Luc Gourdine, Harry Archimede
Summary: This article emphasizes the importance of agroecological systems in tropical regions and presents solutions to minimize inputs. Through multiple case studies, it discusses how to improve the efficiency of tropical systems, including selecting the most suitable genotypes, matching agricultural system resources, controlling disease risks, and mitigating climate constraints.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2021)
Article
Agriculture, Dairy & Animal Science
Amir Aliakbari, Olivier Zemb, Yvon Billon, Celine Barilly, Ingrid Ahn, Juliette Riquet, Helene Gilbert
Summary: This study found genetic variations in the gut microbial community are associated with feed efficiency and production traits in pigs, suggesting potential for selection for feed efficiency using gut microbiome composition.
JOURNAL OF ANIMAL BREEDING AND GENETICS
(2021)
Article
Agriculture, Dairy & Animal Science
Tara Soleimani, Susanne Hermesch, Helene Gilbert
Summary: By selecting for pig feed efficiency and optimizing diets, sustainable farm feed efficiency can be improved, leading to increased profitability and reduced environmental impact in pig production systems. The study highlights the importance of feed efficiency in improving sustainability and reducing environmental footprints in pig production.
JOURNAL OF ANIMAL SCIENCE
(2021)
Article
Agriculture, Dairy & Animal Science
J. -L. Gourdine, A. Fourcot, C. Lefloch, M. Naves, G. Alexandre
Summary: The study assessed ecosystem services provided by livestock farming systems in Guadeloupe and found that these services rely more on rearing management rather than breed type. ES indicators were not breed dependent, highlighting the importance of management practices in determining ecosystem services.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2021)
Article
Evolutionary Biology
Frederic Douhard, Mathieu Douhard, Helene Gilbert, Philippe Monget, Jean-Michel Gaillard, Jean-Francois Lemaitre
Summary: Trade-offs between life history traits are influenced by limited resources in organisms, with less impact in nutrient-rich or benign environments. Despite strong selection for higher productivity in domestic animals, negative genetic correlations between productivity and health/fertility traits suggest trade-offs exist, particularly in nonlimiting resource contexts. Time constraints and trade-offs may play a more significant role than feed availability in limiting genetic changes and predicting selection outcomes in livestock.
EVOLUTIONARY APPLICATIONS
(2021)
Review
Veterinary Sciences
Jean-Luc Gourdine, Wendy Mercedes Rauw, Helene Gilbert, Nausicaa Poullet
Summary: Heat stress affects pig performance and welfare, genetic selection for heat tolerance is a promising long-term option. Genetic studies on thermoregulation in pigs and challenges in improving heat tolerance are discussed in this review.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Article
Agriculture, Dairy & Animal Science
V Deru, A. Bouquet, O. Zemb, B. Blanchet, M. L. De Almeida, L. Cauquil, C. Carillier-Jacquin, H. Gilbert
Summary: The composition of gut microbiota in pigs is influenced by diet and plays an important role in digestion. This study investigated the genetic correlations between microbiota traits and feed efficiency and digestive efficiency traits in pigs fed conventional or high-fiber diets. The results showed limited genetic by diet interactions on gut microbiota composition, suggesting that microbiota-based traits could be used as proxies to improve feed and digestive efficiency in pigs.
JOURNAL OF ANIMAL SCIENCE
(2022)
Article
Environmental Sciences
Claire Collas, Jean-Luc Gourdine, David Beramice, Pierre-Marie Badot, Cyril Feidt, Stefan Jurjanz
Summary: This study found that pigs have a high ingestion of soil under outdoor farming conditions, with no significant differences between different treatments and breeds. The results also highlight the need for adjusting grazing management to limit soil ingestion by pigs and to improve the sustainability of pig systems.
ENVIRONMENTAL POLLUTION
(2023)
Article
Agriculture, Multidisciplinary
Nadine Andrieu, Elodie Dorey, Steewy Lakhia, Paul Meynard, Esther Hatil, Loic Normand, Jean-Luc Gourdine, Jean-Christophe Bambou
AGRICULTURAL SYSTEMS
(2024)
Article
Agriculture, Dairy & Animal Science
Vanille Deru, Francesco Tiezzi, Celine Carillier-Jacquin, Benoit Blanchet, Laurent Cauquil, Olivier Zemb, Alban Bouquet, Christian Maltecca, Helene Gilbert
Summary: The study found that the gut microbiota significantly influenced the phenotypic variability of digestive efficiency traits, even more than host genetics. The use of microbiota information could enhance the selection of digestive efficiency traits, and to a lesser extent, growth and feed efficiency traits. Filtering OTU is an important step that influences microbiability.
GENETICS SELECTION EVOLUTION
(2022)
Article
Agriculture, Dairy & Animal Science
Mathieu Bonneau, Nausicaa Poullet, David Beramice, Laurent Dantec, Laurianne Canario, Jean-Luc Gourdine
Summary: The study used neural network models to monitor pig behavior during heat stress, finding that when temperature increases, Creole pigs spend more time lying on their side to improve thermoregulation efficiency. Neural network models can automatically monitor animal behavior, which is particularly relevant for characterizing breed adaptation to challenging environments.
FRONTIERS IN ANIMAL SCIENCE
(2021)