Effect of nanoemulsified essential oils of Tagetes elliptica and Origanum vulgare on the productive performance of guinea pigs (Cavia porcellus)

Midori R.C.; Erick R.R.; Sandra B.Q. · Revista de Investigaciones Veterinarias del Peru (2026) · DOI: 10.15381/rivep.v37i3.33886

Resumen

The study aimed to evaluate the effect of including nanoemulsified essential oils of chincho (Tagetes elliptica) and oregano (Origanum vulgare) on productive parameters in fattening guinea pigs. Fifty weaned male guinea pigs (15 days old, 280-300 g) were distributed into five treatments: T1 (control), T2 (antibiotic growth promoter), T3 (chincho essential oil), T4 (oregano essential oil), and T5 (chincho + oregano combination), all at 200 ppm. The trial lasted seven weeks, and initial weight, weight gain, dry matter intake, feed conversion ratio, and carcass weight and yield were evaluated. The results showed that T5 had the best response (p<0.05), with the greatest weight gain (673.3 g), feed intake (3208.1 g), feed conversion ratio (4.8), and carcass weight (678.0 g). It is concluded that the combination of nanoemulsified essential oils is a promising natural alternative to the use of antibiotic growth promoters in guinea pig feed. ©Los autores. Este artículo es publicado por la Rev Inv Vet Perú de la Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos. Este es un artículo de acceso abierto, distribuido bajo los términos de la licencia Creative Commons Atribución 4.0 Internacional (CC BY 4.0) [https://creativecommons.org/licenses/by/4.0/deed.es]que permite el uso, distribución y reproducción en cual quier medio, siempre que la obra original sea debidamente citada de su fuente original

Instituciones: Universidad Nacional Mayor de San Marcos