El cuy (Cavia porcellus) es un mamífero roedor herbívoro, monogástrico, de ciclo reproductivo corto y nativo de la región andina de Sudamérica, y la producción de su carne, es considerada en la actualidad como una actividad pecuaria con posibilidad de generar grandes utilidades. Los probióticos pueden utilizarse en la producción como una herramienta complementaria a la dieta para mejorar la conversión alimenticia, aumento de peso y mejora general de la salud de los animales. Se evaluó la capacidad probiótica in vitro de ciento cincuenta bacterias ácido lácticas (BAL) aisladas de heces de cuyes provenientes de un Centro experimental de crianza intensiva al oeste de Lima (Instituto Nacional de Innovación Agraria – INIA), mediante ensayos en agar que evaluaron la capacidad de actividad enzimática amilolítica, proteolítica y celulolítica de las cepas y su producción de c...

The extensive use and misuse of antibiotics in the livestock sector is one of the main drivers of the emergence and spread of antimicrobial resistance. Although small-scale farms constitute most of the livestock production in low and middle-income countries, knowledge and use of antibiotics among these populations is sparse. We conducted 201 questionnaires to estimate the use and knowledge of antibiotics by small-scale farmers located in the coastal area of the Lima region of Peru. Our results show that farmers had a small number of livestock (e.g. average of 11 cows, 7 pigs and 19 chickens per farm) and 80 % earned less than minimum wage. More than half of farmers reported at least one episode of respiratory disease, diarrhea, mastitis, skin lesion or post-parturition infection in their animals during the previous year, and 40 % of these episodes were treated with antibiotics. Farmers r...

Se realizó un estudio de la diversidad de especies del género Vibrio asociada a mortalidades larvarias masivas en la concha de abanico (Argopecten purpuratus) cultivadas en “hatchery”. Las muestras fueron tomadas en seis desoves de concha de abanico en un “hatchery”, tanto en individuos en el fondo del tanque de cultivo como suspendidos en la columna de agua, a 72 horas posteriores al desove a 19 °C. Se transportaron las muestras a una temperatura de 5 ± 2 °C, a los laboratorios de la Universidad Peruana Cayetano Heredia (UPCH), donde se incubaron a 20 °C en los medios de Agar Marino (AM) y Tiosulfato Citrato Bilis Sacarosa (TCBS). Posterior a la caracterización morfológica, se enfrentó los aislados al agente vibriostático O/129. Los aislados se caracterizaron bioquímicamente utilizando el sistema comercial miniaturizado API® 20E. Se identificó al Vibrio alginolyticu...

Antibiotic resistance mediated by bacterial production of extended-spectrum beta-lactamase (ESBL) is a global threat to public health. ESBL resistance is most commonly hospital-acquired; however, infections acquired outside of hospital settings have raised concerns over the role of livestock and wildlife in the zoonotic spread of ESBL-producing bacteria. Only limited data are available on the circulation of ESBL-producing bacteria in animals. Here, we report ESBL-producing Escherichia coli in wild common vampire bats Desmodus rotundus and livestock near Lima, Peru. Molecular analyses revealed that most of this resistance resulted from the expression of blaCTX-M-15 genes carried by plasmids, which are disseminating worldwide in hospital settings and have also been observed in healthy children of Peru. Multilocus sequence typing showed a diverse pool of E. coli strains carrying this resist...

DGS and JAB were funded by a Sir Henry Dale Fellowship, jointly funded by the Wellcome Trust and Royal Society [Grant 102507/Z/13/Z]. DGS was funded by a Wellcome Trust Senior Research Fellowship [217221/Z/19/Z]. CS, JAB, NF and DGS were also funded by a CONCYTEC-UK Embassy grant [No. 003-2016-FONDECYT]. JAB was funded by the National Fund for Scientific and Technological development of Chile [FONDECYT-Iniciación, grant number 11181017]. DF-C receives a doctoral fellowship from the National Agency for Research and Development (ANID) [process number BCH 72170436]. NL is a research fellow of CNPq [312249/2017-9].