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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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Global Fisheries Resources, Fisheries, and Carbon-Sink Fisheries

edited by

Teruhisa Komatsu

Min Xu

and

Zengqiang Yin

submission deadline 15 Dec 2025 | 4 articles | Viewed by 1918 | Submission Open

Keywords: fisheries; habitats; overfishing; fishery resource biology; economic aquatic animal behavior; stock enhancement by releasing; environmental DNA; fisheries management; climate change; ecosystems; ecological models; carbon-sink; aquatic ecological ranches; fisheries products

(This special issue belongs to the Section Aquatic Animals)

Diagnosis, Monitoring and Treatment of Physiological Inflammatory in Equids

edited by

Francesca Arfuso

Maria Rizzo

and

Giuseppe Piccione

submission deadline 15 Dec 2025 | Viewed by 109 | Submission Open

Keywords: inflammation; equids; stress; exercise; homeostasis; acute phase response

(This special issue belongs to the Section Animal Physiology)

Advances in Animal Poisoning and Investigative Diagnostic Toxicology: Mechanisms, Detection, and Intervention

edited by

Xishuai Tong

submission deadline 15 Dec 2025 | Viewed by 107 | Submission Open

Keywords: toxicology; in vitro toxicity models; environmental pollutants; agricultural toxicants; toxicity of nanomaterials; toxicogenomics and epigenetics; applications of artificial intelligence in poisoning diagnosis; toxicological risk assessment models; cross-species toxic transmission; biotoxins produced by drug-resistant bacteria

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

Reuse of Agri-Food By-Products in Animal Nutrition and Their Effects on Livestock Performance and Product Quality

edited by

Ainhoa Sarmiento-García

and

Ceferina Vieira Aller

submission deadline 15 Dec 2025 | Viewed by 92 | Submission Open

Keywords: agri-food by-products; animal nutrition; livestock performance; product quality; sustainability

(This special issue belongs to the Section Animal Nutrition)

Dietary Preferences and Diet Selection for Health and Performance Improvement in Livestock

edited by

Shenfei Long

submission deadline 15 Dec 2025 | Viewed by 72 | Submission Open

Keywords: diet nutrition; environment; behavior; inflammation; oxidative status; intestinal microbiota

(This special issue belongs to the Section Animal Nutrition)

Emerging Models in Veterinary and Comparative Pathology

edited by

Karen Power

and Gionata De Vico

submission deadline 15 Dec 2025 | Viewed by 49 | Submission Open

Keywords: One Health; comparative pathology; molecular pathology; AI-driven diagnostics; biomarker discovery

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

Forage-Based Production Systems for Small Ruminants

edited by

Fleming Sena Campos

, Cleyton de Almeida Araújo and

Glayciane Costa Gois

submission deadline 19 Dec 2025 | Viewed by 31 | Submission Open

Keywords: animal production; small ruminant; roughage conservation; forage and pasture; animal nutrition

(This special issue belongs to the Section Small Ruminants)

Evolution, Diversity, and Conservation of Herpetofauna: Second Edition

edited by Jianping Jiang,

Bin Wang

and

Wei Zhu

submission deadline 20 Dec 2025 | 11 articles | Viewed by 18862 | Submission Open

Keywords: herpetology; amphibians; reptiles; zoology; adaptive evolution; biodiversity; biogeography; cladistics; conservation biology; ecology and evolution; environmental adaptation; environmental DNA; environmental stresses; evolution and development; evolutionary biology; genetics; genomics; meta-genomics; microbial symbioses; molecular phylogenetics; phylogeography; physiology and metabolism; population genetics; species diversity; systematics; systems biology; taxonomy

(This special issue belongs to the Section Herpetology)

Small Animal Internal Medicine: Current Status and Future Challenges of Chronic Enteropathy in Dogs

edited by Yu Tamura

submission deadline 20 Dec 2025 | 2 articles | Viewed by 2330 | Submission Open

Keywords: canine; chronic enteropathy; clinical features; diagnosis; treatment; prognosis

(This special issue belongs to the Section Companion Animals)

Anatomy of Equids: Morphological and Anatomical Aspects of Clinical Studies

edited by

Dominik Poradowski

and

Aleksander Chrószcz

submission deadline 20 Dec 2025 | 1 articles | Viewed by 1839 | Submission Open

Keywords: veterinary medicine; horse; clinical sciences; morphology

(This special issue belongs to the Section Equids)

Antimicrobial Usage Monitoring Systems and Stewardship of Antimicrobials in Animal Health: Second Edition

edited by

Carla Miranda

submission deadline 20 Dec 2025 | 1 articles | Viewed by 1602 | Submission Open

Keywords: antibiotic use; antimicrobials; antimicrobial resistance; livestock; pets; One Health

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

Genomics for Camelid Biodiversity Management and Conservation

edited by

Carlos Iglesias Pastrana

Juan Vicente Delgado Bermejo

and

Elena Ciani

submission deadline 20 Dec 2025 | 1 articles | Viewed by 1274 | Submission Open

Keywords: camelids; genetic diversity; genomics; population genetics; genome-wide association study; conservation biology; adaptive traits; sustainable breeding; animal welfare

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

Genetic Selection and Breeding for Improved Traits in Aquaculture Animals

edited by

Guodong Zheng

and Wenzhi Guan

submission deadline 20 Dec 2025 | 1 articles | Viewed by 180 | Submission Open

Keywords: aquatic animals; genetic improvement; molecular breeding; whole genome selection breeding; polyploidy and hybrid breeding

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

Latest Advances in Neutering and Reproduction Control in Dogs

edited by

Rachel Moxon

submission deadline 20 Dec 2025 | Viewed by 122 | Submission Open

Keywords: canine; dog; neuter; spay; reproduction control; castration; ovariohysterectomy; ovariectomy; hysterectomy; health; behaviour; welfare

(This special issue belongs to the Section Companion Animals)

Extracellular Vesicles in Animal Reproduction

edited by

Anna Lange-Consiglio

submission deadline 20 Dec 2025 | Viewed by 98 | Submission Open

Keywords: reproduction; gametes; embryos; extracellular vesicles; microRNA; biomarkers; fertility

(This special issue belongs to the Section Animal Reproduction)

The Invasive Blue Crab: Implications for Fisheries, Aquaculture and One Health Perspective

edited by

Giuseppe Esposito

Silvia Colussi

and

Paolo Pastorino

submission deadline 25 Dec 2025 | Viewed by 517 | Submission Open

Keywords: Callinectes sapidus; animal health; invasive alien species; biodiversity; habitat structures; ecosystem services; animal genetics; environmental pollution

(This special issue belongs to the Section Aquatic Animals)

Avian Semen—Latest Progress in Quality Evaluation, Preservation Techniques, and Fertility Outcomes

edited by

Stefano Paolo Marelli

and

Federica Turri

submission deadline 25 Dec 2025 | Viewed by 119 | Submission Open

Keywords: avian semen; germplasm cryopreservation; fertility outcomes; biodiversity conservation; semen quality; avian semen as a model; artificial insemination

(This special issue belongs to the Section Animal Reproduction)

New Developments in Livestock Production Systems: Improving Meat Production

edited by

José Segura

, Luis Calvo and Stephanie Lam

submission deadline 30 Dec 2025 | 2 articles | Viewed by 2392 | Submission Open

Keywords: livestock; meat; novel production systems; lean meat yield; retail cut yield; welfare; health

(This special issue belongs to the Section Animal Products)

Thermoregulatory and Physiological Adaptations of Reptiles and Amphibians to Changing Environments

edited by

Kostas Sagonas

submission deadline 30 Dec 2025 | 1 articles | Viewed by 1184 | Submission Open

Keywords: thermal biology; metabolism; adaptation; climate change; ecology; evolution

(This special issue belongs to the Section Herpetology)

Beyond the Home: Exploring Human–Animal Relationships in Veterinary, Agricultural, and Workplace Contexts

edited by

Ana Junça-Silva

submission deadline 30 Dec 2025 | Viewed by 166 | Submission Open

Keywords: human– animal interactions; human– animal bonds; pets; companion animals; pet-owners

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

Best Practices for Zoo Animal Welfare Management

edited by Oriol Talló-Parra and

Xavier Manteca

submission deadline 30 Dec 2025 | Viewed by 154 | Submission Open

Keywords: animal welfare assessment; environmental enrichment; euthanasia; geriatric animals; feeding practices; facility design; human– animal interactions

(This special issue belongs to the Section Zoo Animals)

People and Pets: Factors Affecting the Acquisition, Characteristics and Relinquishment of Companion Animal Relationships

edited by Lindsay Murray and Janine Carroll

submission deadline 31 Dec 2025 | 5 articles | Viewed by 15651 | Submission Open

Keywords: human– animal interactions; companion animals; pets; dogs; cats; characteristics; health; COVID-19 pandemic; cost of living; adoption; relinquishment; relationships

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

Avian Haemosporidian Parasites: Causes and Consequences of Infection

edited by

Santiago Merino Rodríguez

submission deadline 31 Dec 2025 | 4 articles | Viewed by 12361 | Submission Open

Keywords: factors affecting Haemosporidian transmission and effects on birds and vectors; bird-related factors; climate effects on transmissions and host infections; factors affecting distribution and incidence of infections; bird– Haemosporidian– vector interactions

(This special issue belongs to the Section Birds)

Enhancing Product Excellence in Poultry: Key Factors Influencing Egg and Meat Quality

edited by

Kamil Drabik

and Kornel Kasperek

submission deadline 31 Dec 2025 | 7 articles | Viewed by 11493 | Submission Open

Keywords: quality of poultry raw materials; poultry farming; poultry welfare; rearing systems; chemical composition of meat and eggs; shelf life of poultry raw materials; modification of bird nutrition; use of niche poultry species

(This special issue belongs to the Section Poultry)

Recent Advances in Canine Mammary Tumors—2nd Edition

edited by

Debora Aparecida Pires de Campos Zuccari

Luiz Gustavo de Almeida Chuffa

and

Guilherme Henrique Tamarindo

submission deadline 31 Dec 2025 | 5 articles | Viewed by 5923 | Submission Open

Keywords: dogs; cancer; biomarkers; diagnosis; prognosis; extracellular vesicles; therapeutics; liquid biopsy; comparative oncology; translational models

(This special issue belongs to the Section Companion Animals)

Canine and Feline Obesity

edited by

Patrícia Massae Oba

Maria Cattai de Godoy

, Júlia Guazzelli Pezzali and

Márcia De Oliveira Sampaio Gomes

submission deadline 31 Dec 2025 | 3 articles | Viewed by 5053 | Submission Open

Keywords: companion animals& rsquo; obesity; obesity management; weight management; obesity-related diseases; preventive veterinary care; companion animals& rsquo; nutrition; pet-owner relationship; canine and feline health

(This special issue belongs to the Section Companion Animals)

Enhancing Aquatic Animal Health Through Feed Additives

edited by Lourenço Ramos-Pinto, Marina Machado and

Rita Teodósio

submission deadline 31 Dec 2025 | 6 articles | Viewed by 4544 | Submission Open

Keywords: functional feeds; aquaculture; fish and shrimp health; disease resistance; immune response

(This special issue belongs to the Section Aquatic Animals)

Recent Advances in Mare Reproduction

edited by

Ana Amaral

submission deadline 31 Dec 2025 | 2 articles | Viewed by 4424 | Submission Open

Keywords: mare; equine; reproduction; fertility; pregnancy; assisted reproductive technologies; reproductive physiology; reproductive disorders

(This special issue belongs to the Section Equids)

Lifelong Health and Performance in Working Dogs: Physical and Psychological

edited by Melissa Singletary

submission deadline 31 Dec 2025 | 1 articles | Viewed by 3486 | Submission Open

Keywords: working dog; health; welfare; mental health; physical health; performance; career longevity; psychological health; canine aging; enrichment

(This special issue belongs to the Section Companion Animals)

Advances in Husbandry Science and Reintroductions for the Conservation of Amphibians and Reptiles

edited by

Francesco Di Ianni

and Alessandro Vetere

submission deadline 31 Dec 2025 | 1 articles | Viewed by 3432 | Submission Open

Keywords: reptiles; amphibians; reproduction; assisted fertilization; sex identification; conservation

(This special issue belongs to the Section Herpetology)

Genetics, Breeding, and Farming of Aquatic Animals

edited by Min Tao,

Chenghui Wang

and Qizhi Liu

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2854 | Submission Open

Keywords: aquatic animals; genetics and breeding; breeding biotechnology; germplasm resource protection; germplasm utilization; growth and reproduction; healthy farming; disease resistance; animal nutrition

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

Advances in Internal Medicine in Equids

edited by Alejandro Pérez-Écija and

Francisco Mendoza García

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2618 | Submission Open

Keywords: horse; donkey; internal medicine; cardiology; neonatology; neurology; immunology; endocrinology; clinical pathology; physiology; infectious diseases; pharmacology; critical care; emergencies

(This special issue belongs to the Section Equids)

Apicomplexan Parasites in Animals: Insights into Epidemiology, Control, Vaccination, and Host Interactions

edited by

Mingming Liu

Kun Li

and Jixu Li

submission deadline 31 Dec 2025 | 1 articles | Viewed by 2614 | Submission Open

Keywords: Apicomplexa; animals; epidemiology; control; vaccine; host interactions

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

Metabolic Disorders of Poultry

edited by

Victoria Anthony Uyanga

and

Felix Kwame Amevor

submission deadline 31 Dec 2025 | 1 articles | Viewed by 2421 | Submission Open

Keywords: poultry; metabolic disorder; skeletal disorders; nutritional deficiencies; heat stress; ascites; sudden death syndrome; fatty liver hemorrhage syndrome; nutrition; welfare

(This special issue belongs to the Section Poultry)

Heat Stress in Farm Animals: The Impacts of Climate Change on Animal Comfort Conditions

edited by

Welligton Conceição da Silva

, José de Brito Lourenço-Júnior and Jamile Andréa Rodrigues da Silva

submission deadline 31 Dec 2025 | 1 articles | Viewed by 2345 | Submission Open

Keywords: animal welfare; heat stress; cattle; buffalo; small ruminants; animal physiology; animal behavior; sustainability

Respiratory Diseases of Companion Animals

edited by

Olga Szaluś-Jordanow

submission deadline 31 Dec 2025 | 2 articles | Viewed by 2325 | Submission Open

Keywords: dog; cat; respiratory medicine; nose; trachea; bronchus; lung; mediastinum; pleural cavity; neoplasia; infections disease; inflammatory disease

(This special issue belongs to the Section Companion Animals)

Small Mammals as Contributors to Terrestrial Ecosystem Functioning

edited by

Linas Balčiauskas

and Alexander Csanády

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2201 | Submission Open

Keywords: small mammals; long-term studies; monitoring; climate change; environmental changes; disease ecology; trophic interactions; genetic diversity

(This special issue belongs to the Section Mammals)

Livestock and Poultry Genetics and Breeding Management

edited by Yuguo Yuan

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2033 | Submission Open

Keywords: animal genetics; breeding management; gene editing; genomic selection; livestock improvement; reproductive health; performance traits; cloning technologies; bioinformatics in breeding

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

Novel Feed Additives in Livestock and Poultry Nutrition

edited by

In Ho Kim

Shanmugam Sureshkumar

and Vetriselvi Sampath

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2008 | Submission Open

Keywords: probiotics; phytogenic; emulsifiers; organic acids; bacteriophages; livestock

(This special issue belongs to the Section Animal Nutrition)

Transcriptomics in Livestock: Unveiling Genetic Insights for Enhanced Productivity and Health

edited by

Jun-Mo Kim

, Byeonghwi Lim and Seung-Hoon Lee

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1891 | Submission Open

Keywords: transcriptomics; RNA-seq; gene expression; functional genomics; gene regulation; genomic technologies; livestock; health; productivity

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

Nutrition and Health of Aquatic Animals

edited by

Jianan Xian

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1771 | Submission Open

Keywords: nutrition; immunity; disease resistance; aquatic animals; feed

(This special issue belongs to the Section Aquatic Animals)

Antimicrobial Peptides in Animals and Their Application in Veterinary Medicine

edited by

Filippo Fratini

and

Francesca Paola Nocera

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1694 | Submission Open

Keywords: bacteria; antibiotic resistance; antimicrobial peptides; mechanisms of action; clinical potential

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

Sentinel Species and Environmental Pollutants Exposure in Animal Health

edited by Clara Naccari and Ernesto Palma

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1355 | Submission Open

Keywords: sentinel species; bio-indicators; inorganic and organic contaminats; environmental pollution; animals health status

(This special issue belongs to the Section Ecology and Conservation)

Sperm Quality Assessment in Domestic Animals

edited by

Krzysztof Górski

and Stanisław Kondracki

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1214 | Submission Open

Keywords: sperm quality; sperm morphology; semen preservation; semen storage; sperm dimension

(This special issue belongs to the Section Animal Reproduction)

Reproductive Management Strategies for Dairy and Beef Cows

edited by Nicholas Wege Dias

submission deadline 31 Dec 2025 | 1 articles | Viewed by 692 | Submission Open

Keywords: bovine reproduction; reproductive technology and management; theriogenology; endocri-nology

(This special issue belongs to the Section Animal Reproduction)

Advancing Nutrient Utilization, Product Quality, and Production Efficiency in Livestock Through Omics and Targeted Molecular Approaches

edited by

Janghan Choi

submission deadline 31 Dec 2025 | 1 articles | Viewed by 651 | Submission Open

Keywords: animal nutrition; gut and systemic health; meat quality; omics analyses; microbiome analysis; genotyping; RNA sequencing; proteomics; metabolomics; lipidomics; nutrient utilization; production efficiency

(This special issue belongs to the Section Animal Nutrition)

Advancements in Nutritional Management of Companion Animals

edited by

Ricardo D. Ekmay

and Andrew Magnuson

submission deadline 31 Dec 2025 | Viewed by 461 | Submission Open

Keywords: animal health; companion animal; longevity; nutrition strategies; pet food; precision nutrition

(This special issue belongs to the Section Animal Nutrition)

General Epidemiology of Animal Viruses (Second Edition)

edited by

Anna Szczerba-Turek

submission deadline 31 Dec 2025 | Viewed by 416 | Submission Open

Keywords: epidemiology; viruses; one health; zoonoses; molecular evolution; public health; wildlife conservation; cross-species transmission; prevention and control; biosecurity; virus ecology

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

Surgical Procedures and Postoperative Complications in Animals

edited by Federico Massari

submission deadline 31 Dec 2025 | Viewed by 297 | Submission Open

Keywords: complication; surgical procedure; postoperative; outcome; recovery

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

Anaesthesia and Analgesia in Laboratory Animals

edited by

Carlotta Lambertini

and