Bibliographic citations
Hernández, B., (2024). Resistencia antibiótica de bacterias causantes de mastitis clínica bovina en el distrito de Huanchaco de la provincia de Trujillo, 2023 [Tesis, Universidad Privada Antenor Orrego]. https://hdl.handle.net/20.500.12759/34591
Hernández, B., Resistencia antibiótica de bacterias causantes de mastitis clínica bovina en el distrito de Huanchaco de la provincia de Trujillo, 2023 [Tesis]. PE: Universidad Privada Antenor Orrego; 2024. https://hdl.handle.net/20.500.12759/34591
@misc{renati/372411,
title = "Resistencia antibiótica de bacterias causantes de mastitis clínica bovina en el distrito de Huanchaco de la provincia de Trujillo, 2023",
author = "Hernández Mendoza, Brenda Yojani",
publisher = "Universidad Privada Antenor Orrego",
year = "2024"
}
The objective of this study was to determine the antibiotic resistance of bacteria causing clinical bovine mastitis in the district of Huanchaco in the province of Trujillo, 2023; 28 samples of milk with clinical mastitis were collected in sterile bottles and kept at 4°C until their referral and processing in the Veterinary Microbiology laboratory of the Veterinary Medicine and Zootechnics study program of the Universidad Private Antenor Orrego. Bacterial isolation was performed by the streak method, in Blood agar and Mac Conkey agar incubating them at 37°C for 24 hours, then the corresponding biochemical tests were performed to identify the type of bacteria; resulting in Staphylococcus aureus with 43% prevalence (12/28), Streptococcus agalactiae with 25% (7/28) and environmental bacteria such as Escherichia coli with 25% (7/28) and Klebsiella spp. with 7% (2/28). The antibiotic resistance of the most important pathogens was determined, and it was found that Staphylococcus aureus strains were resistant to penicillin G (75%), in the case of Escherichia coli to tetracycline and oxytetracycline 85.7% in both cases. It was also found that 91% (10/11) of Staphylococcus aureus strains are multidrug resistant and the frequent patterns were penicillin, cloxacillin, cephalothin, ceftiofur, tetracycline and oxytetracycline; and streptomycin, penicillin and cloxacillin. It is concluded that the antibacterial resistance rate of Staphylococcus aureus strain is higher against penicillin in 75%; likewise, no statistically significant association (p>0.05) was found between antibiotic resistance and the strains of Staphylococcus aureus, Streptococcus agalactiae, Escherichia coli and Klebsiella spp. of clinical mastitis in the study.
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