Works (10)

Updated: June 5th, 2025 07:22

2025 article

Impact of observation duration on behavioural pain assessment and intra-observer reliability in castrated piglets: A pilot study

Tomacheuski, R. M., Trindade, P. H. E., Merenda, V. R., Lopez-Soriano, M., & Pairis-Garcia, M. (2025, January 1). Animal Welfare, Vol. 34.

By: R. Tomacheuski n, P. Trindade*, V. Merenda n, M. Lopez-Soriano n & M. Pairis-Garcia n

author keywords: animal welfare; castration; farm animal; pain measurement; procedural pain; swine
topics (OpenAlex): Animal Behavior and Welfare Studies; Human-Animal Interaction Studies; Meat and Animal Product Quality
Sources: Web Of Science, NC State University Libraries
Added: May 27, 2025

2024 article

Less experienced observers assess piglet castration-induced acute pain differently than experienced observers: A pilot study

Silva, G. V., Lopez-Soriano, M., Pairis-Garcia, M. D., & Trindade, P. H. E. (2024, September 4). PLoS ONE, Vol. 19.

By: G. Silva*, M. Lopez-Soriano*, M. Pairis-Garcia n & P. Trindade n

MeSH headings : Animals; Pilot Projects; Swine; Male; Pain Measurement / methods; Acute Pain / psychology; Reproducibility of Results; Orchiectomy / adverse effects; Observer Variation; Castration; Humans
topics (OpenAlex): Animal Behavior and Welfare Studies; Meat and Animal Product Quality; Insect and Pesticide Research
Sources: Web Of Science, NC State University Libraries
Added: September 23, 2024

2024 article

Prostaglandin E2 is an unreliable biomarker for inflammation in castrated piglets: a randomized controlled trial assessing pharmaceutical drug efficiency

Merenda, V. R., Lopez-Soriano, M., Anderson, S., Trindade, P. H. E., Tomacheuski, R. M., Leidig, M. S., … Pairis-Garcia, M. D. (2024, July 24). American Journal of Veterinary Research, Vol. 85.

By: V. Merenda n, M. Lopez-Soriano n, S. Anderson n, P. Trindade n, R. Tomacheuski n, M. Leidig, K. Messenger n, J. Ferreira n, M. Pairis-Garcia n

author keywords: piglets; biomarker; inflammation; castration; prostaglandin
MeSH headings : Animals; Dinoprostone / blood; Clonixin / analogs & derivatives; Clonixin / therapeutic use; Orchiectomy / veterinary; Male; Lidocaine / administration & dosage; Lidocaine / therapeutic use; Lidocaine / pharmacology; Swine; Biomarkers / blood; Inflammation / veterinary; Inflammation / drug therapy; Swine Diseases / drug therapy; Anesthetics, Local / administration & dosage; Anesthetics, Local / therapeutic use; Anesthetics, Local / pharmacology
topics (OpenAlex): Animal Behavior and Welfare Studies; Inflammatory mediators and NSAID effects; Peroxisome Proliferator-Activated Receptors
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 8, 2024

2024 article

Real-time and video-recorded pain assessment in beef cattle: clinical application and reliability in young, adult bulls undergoing surgical castration

Tomacheuski, R. M., Oliveira, A. R., Trindade, P. H. E., Lopez-Soriano, M., Merenda, V. R., Luna, S. P. L., & Pairis-Garcia, M. D. (2024, July 2). Scientific Reports, Vol. 14.

Contributors: R. Tomacheuski n, A. Oliveira*, P. Trindade n, M. Lopez-Soriano n, V. Merenda n, S. Luna*, M. Pairis-Garcia n

MeSH headings : Animals; Male; Cattle; Pain Measurement / methods; Pain Measurement / veterinary; Video Recording; Orchiectomy / veterinary; Orchiectomy / adverse effects; Reproducibility of Results; Clonixin / analogs & derivatives; Clonixin / therapeutic use; Pain / veterinary; Morphine / therapeutic use; Dipyrone / therapeutic use; Pain, Postoperative / veterinary; Pain, Postoperative / drug therapy; Pain, Postoperative / diagnosis
topics (OpenAlex): Veterinary Pharmacology and Anesthesia; Animal Behavior and Welfare Studies; Veterinary Equine Medical Research
Sources: Web Of Science, NC State University Libraries, ORCID
Added: July 22, 2024

2023 article

Dairy workers' attitudes toward dairy cattle euthanasia

Merenda, V. R., Oliveira, E. B., Lopez-Soriano, M., Arruda, A. G., Robbins, A., & Pairis-Garcia, M. D. (2023, May 18). Journal of Dairy Science, Vol. 106, pp. 7076–7088.

author keywords: attitudes; dairy; timely euthanasia
MeSH headings : Female; Humans; Cattle; Animals; Dairying / methods; Attitude; Farms; Emotions; Euthanasia
topics (OpenAlex): Animal Behavior and Welfare Studies; Human-Animal Interaction Studies; Agriculture and Farm Safety
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
16. Peace, Justice and Strong Institutions (OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: November 6, 2023

2023 article

Effects of assessment method (real-time versus video-recorded) on a validated pain-altered behavior scale used in castrated piglets

Trindade, P. H. E., Lopez-Soriano, M., Merenda, V. R., Tomacheuski, R. M., & Pairis-Garcia, M. D. (2023, October 31). Scientific Reports, Vol. 13.

By: P. Trindade n, M. Lopez-Soriano n, V. Merenda n, R. Tomacheuski n & M. Pairis-Garcia n

Contributors: P. Trindade n, M. Lopez-Soriano n, V. Merenda n, R. Tomacheuski n & M. Pairis-Garcia n

MeSH headings : Humans; Animals; Male; Swine; Pain Measurement / methods; Pain / diagnosis; Pain / veterinary; Orchiectomy / veterinary; Orchiectomy / methods
topics (OpenAlex): Animal Behavior and Welfare Studies; Human-Animal Interaction Studies; Animal Nutrition and Physiology
TL;DR: In conclusion, piglet pain assessment by UPAPS can be conducted in real-time based on a suitable agreement between the real- time and video-recorded assessment methods. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: January 16, 2024

2023 article

Efficacy of inguinal buffered lidocaine and intranasal flunixin meglumine on mitigating physiological and behavioral responses to pain in castrated piglets

Lopez-Soriano, M., Merenda, V. R., Anderson, S., Trindade, P. H. E., Leidig, M. S., Messenger, K., … Pairis-Garcia, M. D. (2023, June 6). Frontiers in Pain Research, Vol. 4.

By: M. Lopez-Soriano n, V. Merenda n, S. Anderson n, P. Trindade*, M. Leidig, K. Messenger n, J. Ferreira n, M. Pairis-Garcia n

Contributors: M. Lopez-Soriano n, V. Merenda n, S. Anderson n, P. Trindade*, M. Leidig, K. Messenger n, J. Ferreira n, M. Pairis-Garcia n

author keywords: swine; local anesthetic; non-steroidal anti-inflammatory drug (NSAID); cortisol; castration; pain scale; animal welfare; Unesp-Botucatu pig composite acute pain scale (UPAPS)
topics (OpenAlex): Animal Behavior and Welfare Studies; Animal Nutrition and Physiology; Meat and Animal Product Quality
TL;DR: Intranasal FM was able to effectively reduce the physiological piglet's response immediately post-castration and Inguinal buffered lidocaine had no effect on the either physiological or behavioral response to pain. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: July 3, 2023

2023 article

Interactive euthanasia training program for the dairy industry: Implementation and perceived respondent knowledge change

Merenda, V. R., Oliveira, E. B., Lopez-Soriano, M., Arruda, A. G., Robbins, A., & Pairis-Garcia, M. D. (2023, June 1). Journal of Dairy Science, Vol. 106, pp. 5659–5671.

author keywords: dairy; euthanasia; welfare; training
MeSH headings : Humans; Animals; Cattle; Female; Dairying; Farms; Cattle Diseases; Euthanasia; Surveys and Questionnaires
topics (OpenAlex): Animal Behavior and Welfare Studies; Agriculture and Farm Safety; Human-Animal Interaction Studies
TL;DR: Age and euthanasia experience were significantly associated with the respondents' perceived knowledge; suggesting that younger, less-experienced caretakers on-farm should be prioritized to receive training. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: September 5, 2023

2023 article

Validation of the Unesp-Botucatu pig composite acute pain scale (UPAPS) in piglets undergoing castration

Robles, I., Luna, S. P. L., Trindade, P. H. E., Lopez-Soriano, M., Merenda, V. R., Viscardi, A. V., … Garcia, M. D. P.-. (2023, April 13). (I. A. S. Olsson, Ed.). PLoS ONE, Vol. 18, p. e0284218.

By: I. Robles n, S. Luna*, P. Trindade*, M. Lopez-Soriano n, V. Merenda n, A. Viscardi*, E. Tamminga*, M. Lou*, M. Garcia n

Contributors: I. Robles n, S. Luna*, P. Trindade*, M. Lopez-Soriano n, V. Merenda n, A. Viscardi*, E. Tamminga*, M. Lou*, M. Pairis-Garcia n

Ed(s): I. Olsson*

MeSH headings : Animals; Male; Female; Swine; Acute Pain / diagnosis; Reproducibility of Results; Orchiectomy / veterinary; Pain, Postoperative / diagnosis; Pain, Postoperative / drug therapy; Analgesia
topics (OpenAlex): Veterinary Pharmacology and Anesthesia; Animal Behavior and Welfare Studies; Meat and Animal Product Quality
TL;DR: The UPAPS scale is a valid and reliable clinical tool to assess acute pain in castrated pre-weaned piglets and confirms responsiveness and construct validity, respectively. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: June 5, 2023

2022 article

Efficacy of transdermal flunixin in mitigating castration pain in piglets

Lopez-Soriano, M., Merenda, V. R., Trindade, P. H. E., Luna, S. P. L., & Pairis-Garcia, M. D. (2022, November 11). Frontiers in Pain Research, Vol. 3.

By: M. Lopez-Soriano n, V. Merenda n, P. Trindade*, S. Luna* & M. Pairis-Garcia n

Contributors: P. Trindade*

author keywords: pain; castration; transdermal flunixin; swine; pain scale; UPAPS; animal welfare
topics (OpenAlex): Animal Behavior and Welfare Studies; Dermatology and Skin Diseases; Insect and Pesticide Research
TL;DR: The UPAPS effectively distinguished varying levels of painful and non-painful states in castrated piglets as observed via deviations in total pain scores across timepoints, and future work should evaluate implementation of this pain management protocol on a wide scale commercial farm setting. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: September 18, 2023

Employment

Updated: January 6th, 2026 12:23

2023 - present

University of Missouri Columbia, Missouri, US
Livestock Specialist (Swine) Extension

Education

Updated: March 26th, 2024 23:55

North Carolina State University Raleigh, North Carolina, US
Comparative Biomedical Sciences

Universidad Nacional de Agricultura Catacamas, Olancho, HN
Animal Sciences

Centro Agronomico Tropical de Investigacion y Ensenanza Catie Turrialba, Costa Rica, CR
Ecological Agriculture

Funding History

Funding history based on the linked ORCID record. Updated: August 29th, 2025 15:23

grant June 1, 2025 - June 1, 2026
Factors contributing to the satisfaction of a long-term farm employee in the US swine industry
National Pork Board
grant March 1, 2024 - February 1, 2025
Collaboration and Coordination of Biosecurity Outreach across State-lines
National Pork Board
grant March 1, 2024 - June 1, 2025
Understanding the background of foreign labor (TN-visa workers) in the swine industry
National Pork Board

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