Parasitic Diseases in Livestock: Advances in Diagnostics, Understanding and Control

A special issue of Parasitologia (ISSN 2673-6772).

Deadline for manuscript submissions: 30 November 2025 | Viewed by 627

Special Issue Editors


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Guest Editor
Instituto de Biociências, UNESP-Universidade Estadual Paulista, Botucatu 18618-689, SP, Brazil
Interests: haemonchus; gastrointestinal nematodes; livestock; parasites; diagnostic
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Guest Editor
Faculdade de Ciências Agrárias e Veterinárias, UNESP-Universidade Estadual Paulista, Jaboticabal 14884-900, SP, Brazil
Interests: host-parasite relationship; helminth infection; immune response to nematode infection
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Parasitic diseases negatively impact livestock production, causing millions of dollars of losses annually across the world. The main sanitary problems in animal husbandry are caused by parasites such as protozoa, gastrointestinal nematodes, and ectoparasites like ticks and flies. Gaining a comprehensive understanding of the dynamics of these parasites is crucial for progress in new methods of diagnosis and control.

In this context, we would like to invite you to consider publishing your research results in this Special Issue, which involves novelties in the diagnostics of parasites; the understanding of host–parasite interaction, immunity, and pathogenicity; and novelties in control.

You may choose our Joint Special Issue in Pathogens.

Dr. César Cristiano Bassetto
Dr. Ana Cláudia Alexandre de Albuquerque
Guest Editors

Manuscript Submission Information

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Keywords

  • gastrointestinal nematodes
  • livestock
  • parasitic diseases
  • parasites
  • sheep
  • cattle
  • host&ndash
  • parasite interaction

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Published Papers (1 paper)

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Research

11 pages, 1991 KB  
Article
Epidemiological Insights into Haemonchosis from Necropsy Records of Small Ruminants in Northeast Brazil
by Artefio Martins Oliveira, Erick Platiní Ferreira Souto, Antônia Aniellen Raianne Moisés Aguiar, Victor Hugo Alves Sousa Formiga, Thais Ferreira Feitosa, Antônio Flávio Medeiros Dantas and Vinícius Longo Ribeiro Vilela
Parasitologia 2025, 5(4), 55; https://doi.org/10.3390/parasitologia5040055 - 22 Oct 2025
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Abstract
The main pathological, epidemiological, and clinical findings of haemonchosis in goats and sheep in a semi-arid region of Northeast Brazil are described. Necropsy records conducted between January 2012 and December 2021 at the Animal Pathology Laboratory (APL) of the UFCG, were reviewed. In [...] Read more.
The main pathological, epidemiological, and clinical findings of haemonchosis in goats and sheep in a semi-arid region of Northeast Brazil are described. Necropsy records conducted between January 2012 and December 2021 at the Animal Pathology Laboratory (APL) of the UFCG, were reviewed. In 2022, a prospective study monitored the necropsies performed on these species. In total, necropsies were conducted on 410 goats and 319 sheep, haemonchosis was observed in 50 (12%) goats and 49 (15%) sheep. For goats, females (45/50, 90%; p ≤ 0.05), the age range of 13–35 months (25/50, 50%; p ≤ 0.05), and crossbred animals (38/50, 76%; p ≤ 0.05) were most affected. Both goat and sheep, respectively, raised in a semi-intensive system were more infected (41/50, 82%; 36/49, 76.5%; p ≤ 0.05). The animals came from the States of Paraíba, Pernambuco, Ceará, and Rio Grande do Norte. The proportion of goats (32/50, 64%) and sheep (30/49, 61.2%) with a normal body condition score was significantly different (p ≤ 0.05). The main pathological alterations (p ≤ 0.05) were the mucosal and carcass paleness, and the presence of H. contortus specimens in the abomasum. Haemonchosis remains a significant parasitic disease affecting small ruminants in the semi-arid region of Northeast Brazil, leading to mortality and decreased production rates, posing substantial economic challenges that adversely impact goat and sheep farming. Full article
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