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Animals publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Application of Metabolomics in Animal Nutrition Research

edited by Héctor Aarón Lee-Rangel and

Alejandro E. Relling

submission deadline 10 Feb 2026 | 2 articles | Viewed by 3868 | Submission Open

Keywords: metabolomic; meat; milk; performance; health

(This special issue belongs to the Section Animal Nutrition)

Hormone Shifts in Ruminant Reproduction in a Changing Climate

edited by

Katarzyna Kirsz

submission deadline 10 Feb 2026 | Viewed by 206 | Submission Open

Keywords: climate change; ruminants; reproductive hormones; heat stress; endocrine disruption; fertility; hypothalamic– pituitary– gonadal axis; seasonal reproduction; melatonin; livestock adaptation

(This special issue belongs to the Section Animal Physiology)

Leishmania Infection in Animals

edited by

Sergio Villanueva-Saz

Antonio Fernández

and

Héctor Ruiz

submission deadline 15 Feb 2026 | 7 articles | Viewed by 12643 | Submission Open

Keywords: animal; cat; diagnostic techniques; dog; epidemiology; exotic pet; Leishmania; preventive measures; treatment

(This special issue belongs to the Section Veterinary Clinical Studies)

Advances in Veterinary Pharmacology: Improving Treatment Modalities for Animal Pathology

edited by Halina Tkaczenko and

Natalia Kurhaluk

submission deadline 15 Feb 2026 | 6 articles | Viewed by 8144 | Submission Open

Keywords: veterinary pharmacology; animal pathology; drug discovery; pharmacokinetics; pharmacodynamics; dosage optimization; targeted therapies; personalized medicine for animals

(This special issue belongs to the Section Veterinary Clinical Studies)

The Science of Working and Sporting Dog Performance

edited by Jacqueline Boyd

submission deadline 15 Feb 2026 | 3 articles | Viewed by 6988 | Submission Open

Keywords: canine science; working dog; training; conditioning; nutrition; sporting dog; canine performance; dog health; dog welfare

(This special issue belongs to the Section Companion Animals)

Advances in Canine and Feline Nephrology and Urology

edited by Joseph Bartges

submission deadline 15 Feb 2026 | 4 articles | Viewed by 5559 | Submission Open

Keywords: small animals; nephrology; urology; urinary tract disorders

(This special issue belongs to the Section Companion Animals)

Sperm Preservation and Sexing Technologies in Large- and Small-Ruminant Reproduction: Current Status and Future Perspectives

edited by

Filipp Georgijevič Savvulidi

and

Martin Ptáček

submission deadline 15 Feb 2026 | 2 articles | Viewed by 1784 | Submission Open

Keywords: semen; cryopreservation; liquid storage; sperm lyophilization; sexed semen; sperm quality; biotech-nology; domestic and wild ruminants

(This special issue belongs to the Section Animal Reproduction)

Parasitic Helminths in Ruminants: The Genomics, Molecular Characterization, and Drug Resistance

edited by Junfeng Gao and Qiaocheng Chang

submission deadline 15 Feb 2026 | Viewed by 383 | Submission Open

Keywords: helminths; ruminants; genomics; molecular characterization; drug resistance; epidemiology; molecular mechanism; diagnosis; treatment

(This special issue belongs to the Section Veterinary Clinical Studies)

Aquatic Organisms Biomarkers in Toxicology: Assessing Exposure and Effects

edited by

Mariana Teles

and Camila de Fátima Pereira de Faria

submission deadline 15 Feb 2026 | Viewed by 274 | Submission Open

Keywords: fish biomarkers; aquatic toxicology; chemical exposure; environmental monitoring; ecotoxicology; biological indicators

(This special issue belongs to the Section Aquatic Animals)

Research on Fish Population Dynamics

edited by

Jie Cao

and Xiujuan Shan

submission deadline 15 Feb 2026 | Viewed by 199 | Submission Open

Keywords: fish population dynamics; stock assessment; recruitment; mortality; fisheries modeling; sustainable management; spatial population ecology

(This special issue belongs to the Section Aquatic Animals)

Advances in Pharmacokinetics in Minor and Exotic Species

edited by

Pedro Marín Carrillo

submission deadline 20 Feb 2026 | 1 articles | Viewed by 928 | Submission Open

Keywords: pharmacokinetics; small ruminants; PK/PD integration; withdrawal periods; bioavailability; drug dosage adjustment; exotic species

(This special issue belongs to the Section Veterinary Clinical Studies)

Advances in Ungulate Science: Behavior, Physiology, Reproduction and Conservation

edited by

Francisco Ceacero

and

Katarzyna Tajchman

submission deadline 20 Feb 2026 | 1 articles | Viewed by 722 | Submission Open

Keywords: captive breeding; functional ecosystems; habitat restoration; reintroduction; rewilding

(This special issue belongs to the Section Mammals)

Emerging Infectious Diseases and Their Impact on Animal Health

edited by

Yue Wang

submission deadline 25 Feb 2026 | 1 articles | Viewed by 2349 | Submission Open

Keywords: emerging infectious diseases; animal health; zoonotic diseases; pandemic prevention; disease surveil-lance

(This special issue belongs to the Section Veterinary Clinical Studies)

Revolutionizing Animal Care: Enriching the Lives of Companion Animals and Equids Through Advanced Rehabilitation Techniques

edited by

David Argüelles

and

Ana Velloso Alvarez

submission deadline 28 Feb 2026 | 7 articles | Viewed by 12367 | Submission Open

Keywords: rehabilitation; water treadmill; electrophysical therapies; stretching; equine; small animals

(This special issue belongs to the Section Veterinary Clinical Studies)

Modern Livestock and Poultry Farming Technologies to Improve Comfort and Animal Welfare Levels

edited by

Zhonghong Wu

and

Yao Guo

submission deadline 28 Feb 2026 | 6 articles | Viewed by 11979 | Submission Open

Keywords: livestock welfare; husbandry techniques; environmental management; animal behavior; stress

(This special issue belongs to the Section Animal Welfare)

Application of Regenerative Medicine in the Field of Veterinary Medicine

edited by

Young-Sam Kwon

and

Min-Soo Seo

submission deadline 28 Feb 2026 | 4 articles | Viewed by 11783 | Submission Open

Keywords: regenerative medicine; stem cells; platelet-rich plasma; tissue engineering; gene therapy; exosome therapy

(This special issue belongs to the Section Veterinary Clinical Studies)

Maximizing Fiber Utilization for Sustainable, Efficient Ruminant Production

edited by Zhiyuan Ma,

Ting Liu

and Weiwei Wang

submission deadline 28 Feb 2026 | 10 articles | Viewed by 11279 | Submission Open

Keywords: fiber; carbohydrate; digestion; methane; performance; supplementation; ruminant; microbiota; rumen health; rumen development

(This special issue belongs to the Section Animal Nutrition)

Gut Microbiota in Aquatic Animals

edited by

Gabriella do Vale Pereira

and

Fernando Yugo Yamamoto

submission deadline 28 Feb 2026 | 4 articles | Viewed by 11274 | Submission Open

Keywords: gut microbiota; aquatic animals; nutrition; physiology; host– microbe interaction; production efficiency; feed conversion ratio; antibiotics

(This special issue belongs to the Section Aquatic Animals)

Genetics and Breeding Advances in Poultry Health and Production: 2nd Edition

edited by

Hongyan Sun

and Xi Lan

submission deadline 28 Feb 2026 | 9 articles | Viewed by 10165 | Submission Open

Keywords: breeding and genetics; bioinformatics; immunology; poultry; disease resistance; stress tolerance; food safety

(This special issue belongs to the Section Poultry)

Advances in Dairy Cattle Reproduction: Second Edition

edited by

Fernando Lopez-Gatius

submission deadline 28 Feb 2026 | 3 articles | Viewed by 7219 | Submission Open

Keywords: abortion; cow lifespan; genomic predictions; in vitro embryo production; reproductive clinics

(This special issue belongs to the Section Animal Reproduction)

Recent Advances in Reproductive Biotechnologies—Second Edition

edited by

Luis Águila Paredes

and

João Pedro Barbas

submission deadline 28 Feb 2026 | 4 articles | Viewed by 5996 | Submission Open

Keywords: reproductive biotechnologies; productivity; embryo development; andrology; sperm cryopreservation

(This special issue belongs to the Section Animal Reproduction)

Assessing Behavior and Welfare in Sheltered Animals: Research Progress and Challenges

edited by Meghan Herron

submission deadline 28 Feb 2026 | 2 articles | Viewed by 4180 | Submission Open

Keywords: behavior; welfare; companion animals; shelter; stress; behavior evaluation

(This special issue belongs to the Section Companion Animals)

Nutritional Modulation Strategies for Rumen Microbiota Structure and Methane Emissions

edited by

Duanqin Wu

, Zuo Wang and Rong Wang

submission deadline 28 Feb 2026 | 5 articles | Viewed by 3322 | Submission Open

Keywords: ruminant; forage; feed additives; rumen microbiota; fermentation; metagenomics; metabolomics; methane; hydrogenase; sustainable livestock production

(This special issue belongs to the Section Animal Nutrition)

Sports Medicine, Health, Welfare, Rehabilitation, and Aftercare of Racehorses

edited by Ben Sykes and Amy Lovett

submission deadline 28 Feb 2026 | 1 articles | Viewed by 3159 | Submission Open

Keywords: racehorses; health; wellbeing; welfare; performance

(This special issue belongs to the Section Equids)

Fish Reproductive Biology and Embryogenesis

edited by

Renato Massaaki Honji

and Amanda da Silveira Guerreiro

submission deadline 28 Feb 2026 | 3 articles | Viewed by 2591 | Submission Open

Keywords: oogenesis; spermatogenesis; hormonal control; embryonic development; climate change impact

(This special issue belongs to the Section Animal Reproduction)

Machine Learning Methods and Statistics in Ruminant Farming

edited by

Daniel Zaborski

and

Wilhelm Grzesiak

submission deadline 28 Feb 2026 | 2 articles | Viewed by 2486 | Submission Open

Keywords: artificial intelligence; machine learning; data mining; biostatistics; ruminant; farming; breeding; genomic analysis

(This special issue belongs to the Section Animal System and Management)

Unveiling Equine Exercise Physiology for Peak Performance and Optimal Health

edited by

Luca Stucchi

and Emmanuelle Van Erck

submission deadline 28 Feb 2026 | 2 articles | Viewed by 2358 | Submission Open

Keywords: equine sports medicine; equine exercise physiology; horse performance; horse welfare; social license to operate

(This special issue belongs to the Section Equids)

Animal Immune Response to Parasitic Infections

edited by

Maria Pereira

Gabriela Santos Gomes

and

Armanda Rodrigues

submission deadline 28 Feb 2026 | 1 articles | Viewed by 2326 | Submission Open

Keywords: domestic animals; wild animals; host– parasite interaction; immunology of zoonosis; parasitic immunology; anti-parasitic drugs; anti-parasitic vaccines; immunomodulators for parasitic infections

(This special issue belongs to the Section Veterinary Clinical Studies)

New Studies on Morphometric, Phylogeography, Population Genetics, Ecology and Conservation of Felidae Species

edited by

Manuel Ruiz-Garcia

submission deadline 28 Feb 2026 | 2 articles | Viewed by 2184 | Submission Open

Keywords: felines; wild cats; morphometrics; molecular population genetics; phylogeography; paleontology; taxonomy; new taxa; ecology; conservation

(This special issue belongs to the Section Mammals)

Carnivores and Urbanization

edited by

Kelly Marnewick

submission deadline 28 Feb 2026 | 1 articles | Viewed by 2138 | Submission Open

Keywords: urban ecology; carnivore conservation; human– wildlife interactions; coexistence strategies; wildlife management; urban ecosystem services; human wellbeing

(This special issue belongs to the Section Wildlife)

Feed Additives and Micronutrients on Performance, Nutrient Utilization, Immunity, Oxidative Stress, Gut Health and Microbiome of Pigs and Sows: Third Edition

edited by

Young-Dal Jang

submission deadline 28 Feb 2026 | 3 articles | Viewed by 2003 | Submission Open

Keywords: weaning pigs; gut health; amino acids; vitamins; minerals; feed additives; sows; immunity; digestibility; microbiome

(This special issue belongs to the Section Pigs)

The Application of Platelet-Derived Products for Tissue Regeneration in Companion and Farm Animals

edited by

Luca Melotti

and

Marco Patruno

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1411 | Submission Open

Keywords: platelet-derived products; platelet-rich plasma; tissue engineering; regenerative medicine; stem cells; platelet lysate; innovative therapy

(This special issue belongs to the Section Veterinary Clinical Studies)

Advances in Small Animal Gastrointestinal and Hepatic Diseases

edited by Giorgia Galiazzo and Maria Chiara Sabetti

submission deadline 28 Feb 2026 | 2 articles | Viewed by 1379 | Submission Open

Keywords: enteropathy; dysbiosis; microbiota; gastrointestinal; vomiting; diarrhea; liver; diet; bowel; canine protein-losing enteropathy

(This special issue belongs to the Section Veterinary Clinical Studies)

Environmental Influence in Physiological, Endocrine and Oxidative Stress Responses in Fish

edited by Claire E. Couch

submission deadline 28 Feb 2026 | 1 articles | Viewed by 793 | Submission Open

Keywords: fish health; stress; physiology; fitness; environmental change

(This special issue belongs to the Section Aquatic Animals)

Fish Cognition and Behaviour

edited by

Asahi Ogi

submission deadline 28 Feb 2026 | 1 articles | Viewed by 739 | Submission Open

Keywords: cognitive processes; behavioral adaptations; social behavior; neurobiological foundations; fish ethology

(This special issue belongs to the Section Aquatic Animals)

Diagnostic Strategies in Bovine Respiratory Disease: 2nd Edition

edited by

Selwyn Arlington Headley

submission deadline 28 Feb 2026 | 1 articles | Viewed by 686 | Submission Open

Keywords: research areas may include (but are not limited to) the following: clinical diagnosis and studies; serological epidemiology; histopathological; immunohistochemistry; and in situ hybridization; molecular characterization; bacteriological and virological identification; new-generation sequencing; respiratory microbiota of cattle; meta-analyses and/or reviews

(This special issue belongs to the Section Cattle)

Applied Ethology and Welfare Assessment in Animals

edited by

Edward Narayan

submission deadline 28 Feb 2026 | 1 articles | Viewed by 606 | Submission Open

Keywords: stress; climate change; habitat conservation; farm animals; aquatic life; pollution; urban living; extinction; welfare ethics and policy

(This special issue belongs to the Section Animal Welfare)

Companion Animal Theriogenology

edited by Pagona G. Gouletsou and

Marianna S. Barbagianni

submission deadline 28 Feb 2026 | Viewed by 437 | Submission Open

Keywords: breeding efficiency; physiological and pathological processes; contraception; pregnancy and parturition; reproductive technologies; diagnostic and therapeutic techniques; andrology; diseases of the reproductive system and the mammary gland; infertility; companion animals

(This special issue belongs to the Section Companion Animals)

Mitigating Heat Stress in Ruminants: Physiological Impacts and Nutritional Strategies

edited by Wonseob Kim

submission deadline 28 Feb 2026 | Viewed by 410 | Submission Open

Keywords: heat stress; nutritional strategies; ruminants; nutrients; feed additive

(This special issue belongs to the Section Animal Nutrition)

Featured Papers in the 'Human–Animal Interactions, Animal Behaviour and Emotion' Section

edited by

Marcello Siniscalchi

submission deadline 28 Feb 2026 | 1 articles | Viewed by 404 | Submission Open

Keywords: behavior; emotion; human– animal relationship; animal communication; animal cognition

(This special issue belongs to the Section Human-Animal Interactions, Animal Behaviour and Emotion)

Phylogeography, Speciation, and Molecular Evolution in Freshwater Aquatic Fauna

edited by

Narongrit Muangmai

and Sebastien Bernard Francis Lavoué

submission deadline 28 Feb 2026 | Viewed by 260 | Submission Open

Keywords: biogeography; freshwater biodiversity; population genomics; molecular systematics; cryptic spe-cies

(This special issue belongs to the Section Aquatic Animals)

Advances in Equine Reproductive Physiology and Endocrinology

edited by

and

submission deadline 28 Feb 2026 | Viewed by 253 | Submission Open

Keywords: equine; reproductive physiology; endocrinology; pregnancy; hormonal fetomaternal interaction

(This special issue belongs to the Section Equids)

Artificial Intelligence (AI) Techniques for Genome-to-Phenome Applications in Livestock Species

edited by

Anderson A. C. Alves

submission deadline 28 Feb 2026 | Viewed by 242 | Submission Open

Keywords: animal health and welfare; artificial intelligence; breeding and genetics; computer vision; deep learning; digital phenotyping; genomics; multi-omics; sensor-based traits

(This special issue belongs to the Section Animal Genetics and Genomics)

Nutrient Metabolism and Feed Nutritional Values in Sows

edited by Yan Lin and Ke Wang

submission deadline 28 Feb 2026 | Viewed by 207 | Submission Open

Keywords: sows; nutritional value of feed; new feed resources; feed efficiency; nutrient metabolism

(This special issue belongs to the Section Pigs)

Advances in Feed Additives for Enhancing Early Lactation Performance in Ruminants

edited by

Kang Zhan

submission deadline 28 Feb 2026 | Viewed by 178 | Submission Open

Keywords: nutrients; ruminants; feed additives; early lactation; immunity; metabolism; rumen

(This special issue belongs to the Section Animal Nutrition)

New Techniques and Technologies Applicable to Animal Production

edited by Iván Agea,

María-José Argente

and

María-Luz García

submission deadline 28 Feb 2026 | Viewed by 167 | Submission Open

Keywords: efficiency; sustainability; animal welfare; precision livestock farming; artificial intelligence

(This special issue belongs to the Section Animal System and Management)

Conservation of Global Amphibian Diversity Under Climate and Environmental Change

edited by

Tian Zhao

Wei Zhu

and Liming Chang

submission deadline 28 Feb 2026 | Viewed by 164 | Submission Open

Keywords: amphibian conservation; global change; climate adaptation; biodiversity; chytridiomycosis mitigation; habitat fragmentation; population viability; community composition; microbe

(This special issue belongs to the Section Herpetology)

Quantitative Genetics of Livestock Populations

edited by Liga Paura and Rūta Šveistiene

submission deadline 28 Feb 2026 | Viewed by 142 | Submission Open

Keywords: heritability; variance components; genetic correlation; breeding value estimation; pure breeding and crossbreeding; inbreeding; selection response; animal breeding programmes

Applications of Modern Biotechnologies to Improve Reproductive Efficiency in Animals

edited by

Rosa Maria Lino Neto Pereira

Sonia Macedo

, Daniela Franco da Silva and Vera Pessoa

submission deadline 28 Feb 2026 | Viewed by 108 | Submission Open

Keywords: reproductive success; population dynamics; neuroendocrine response; animal stress; biotechnology

(This special issue belongs to the Section Mammals)

Intra- and Inter-Species Interactions Through the Emission and Reception of Chemicals: Behavior, Anatomy, and Physiology

edited by

Daisuke Kondoh

submission deadline 28 Feb 2026 | Viewed by 96 | Submission Open