FAVE Sección Ciencias Veterinarias

Dynamics of gastrointestinal nematode egg shedding in goat flocks of the Chaco bioregion, Argentina

Mon, 28 Apr 2025 00:00:00 +0000

The present study aimed to describe the dynamics of gastrointestinal nematode (GIN) egg shedding in goat flocks from the Chaco Salteño region. To this end, fecal samples were collected every 45 days from adult and young goats belonging to two flocks to determine the number of eggs per gram of feces (EPG) using the McMaster technique and to differentiate the genera of infective larvae through coprocultures. The results showed generally low infection levels, although a peak was observed in April, particularly in one of the flocks, where 30% of the samples exceeded 1500 EPG. Egg counts were higher in young animals, and the predominant genera were Haemonchus spp. and Trichostrongylus spp. Haemonchus was more prevalent in summer and autumn, while Trichostrongylus predominated in autumn and winter. These findings highlight the importance of monitoring flocks at the end of summer and during autumn through coprological studies. Additionally, the implementation of the FAMACHA system is recommended to control Haemonchus in areas with greater pasture coverage.

Educational intervention proposal for planning a new curricular design: comprehensive teaching of the causal agents of infectious diseases

Juliana CANTÓN, Pedro E. MORÁN, Claudio S. CACCIATO, Antonio E. FELIPE — Tue, 01 Apr 2025 00:00:00 +0000

The teaching of contemporary veterinary medicine demands innovative curricular designs that emphasize disciplinary integration. These designs enable students to build a strong foundation for their professional performance, supported by a teaching model that extends beyond the passive transmission of information. Instead, teachers actively guide and participate in the process of knowledge construction, utilizing an integrated teaching approach and an evaluation system focused on scientific and professional competencies and skills. This work presents an opinion about curricular integration, specifically through a proposal developed by faculty in Microbiology, Virology, and Infectious Diseases, aimed at informing discussions on a new curricular design at the FCV-UNCPBA. The proposal is structured around the concept of modular teaching and promotes interdisciplinary activities across courses within the Department of Animal Health and Preventive Medicine. This work is organized into several key components: an educational conceptual framework; guiding principles for the roles of teachers, students, and the learning environment; objectives; didactic design and its placement within the curricular map; the work and evaluation methodology; as well as the mechanisms for monitoring and assessing the expected impact of the proposal.

Reference values for kidney and liver functional indicators of goats in Las Colonias Department of the province of Santa Fe, Argentina

Tue, 01 Apr 2025 00:00:00 +0000

The reference values of the biochemical indicators of renal and hepatic functionality were estimated in Saanen and Boer breed goats of different sexes, ages and productive statuses from livestock establishments from Las Colonias Department of the province of Santa Fe, Argentina. The estimated values showed discrepancies with respect those reported in the literature. The results obtained contribute to the knowledge of the reference values of kidney and liver functional indicators of the goat breeds in the central region of the province of Santa Fe, Argentina, providing relevant and unpublished data for the region.

Reference values of hematological parameters of goats of Santa Feprovince, Argentina

Tue, 01 Apr 2025 00:00:00 +0000

The reference values of the hematological parameters were estimated in Saanen and Boer breed goats of different sexes, ages and productive statuses from livestock establishments from Las Colonias Department of the province of Santa Fe, Argentina. The estimated values showed discrepancies with respect those reported in the literature. The results obtained contribute to the knowledge of the reference values of hematological parameters of the goat breeds in the central region of the province of Santa Fe, Argentina, providing relevant and unpublished data for the region.

Fat mobilization syndrome in beef cows due to poor adaptation to corn silage consumption

Gabriela V. SANDOVAL, Alvaro F. RUIZ, Juan F. MICHELOUD — Tue, 01 Apr 2025 00:00:00 +0000

An outbreak of fat mobilization syndrome in breeding cows due to lack of adaptation to confinement is described in Salta, Argentina. The incidence was 8% and the lethality was 67%. Clinical signs included depression, unsteady gait, weakness, and eventual recumbency and death. Some animals in the final stages exhibited nervous signs such as blindness and walking in circles. Necropsy revealed mild jaundice in subcutaneous tissue, vascular endothelia, and organs in general, along with marked hepatomegaly, ocher coloration, and a greasy texture to the touch. Microscopically, severe hepatic lipidosis and retention of bile pigments were observed. Additionally, elevated levels of aspartate aminotransferase (AST=489±277), alkaline phosphatase (ALP 895±207 IU/L), and urea (48±13 mmol/L) were noted. Hepatic lipidosis is a well-known condition in dairy cows but is rarely described in breeding cows.