| Table of contents Rev. Med. Vet. Zoot. vol.68 no.3 Bogotá Sep./Dec. 2021 Editorial | | | | · La sustentabilidad como atributo de la calidad de la producción pecuaria Amador Gómez, Ignacio
| | | Research papers | | | | · In vitro antiparasitic efficacy of the quebracho extract (Schinopsis balansae) on infecting larvae of Haemonchus contortus of sheep Vergara, D.; Sagüés, F.; Passucci, J.; Späth, E. J.; Lloberas, M. M.; Saumell, C. A.; Moreno, F. C.
| | | | · Microorganisms causing of clinical pathologies in canines and domestic felines in Valledupar, Colombia Hinojosa, M. C.; Cañate, A. S.; Herrera, P. C.
| | | | · Patterns of resistance in bacterial agents involved in canine otitis at Medellín, Colombia, during 2019: retrospective analysis Duque, M.; Uribe, N.; Buitragc, J.
| | | | · Obtaining and evaluating hydrolyzed protein concentrate from animal waste as a feeding alternative in Piaractus brachypomus (Cuvier 1818) Garcés, Y J.; Perea, C.; Vivas, N. J.; Hoyos, L.
| | | | · Characterization of the professional ethical level of students and teachers of the veterinary medicine career at the Santo Tomás University, Puerto Montt headquarters, Chile Saldivia-Paredes, M.; Neumann-Fuentealba, E.; Frex-Godoy, C.
| | | | · Pectus excavatum in a French Bulldog Litter: case report Aguirre, J. C.; Gallego, R. S.; Buitrago, J.A.
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