Abstract

PLANT POLYEXTRACTS AGAINST AVIBACTERIUM PARAGALLINARUM AND PASTEURELLA MULTOCIDA, CAUSUAL AGENTS OF RESPIRATORY SYNDROME IN CHICKENS

Rosa Iris Mayo Tadeo, Dolores Vargas Alvarez*, Natividad Herrera Castro, Roxana Reyes Rios, Agustín Damián Nava, Flaviano Godínez Jaimes and Eleuterio Campos Hernández

ABSTRACT

The present investigation evaluates the capacity for in vitro growth inhibition of the casual agents of chronic respiratory syndrome among chickens, the bacteria Avibacterium paragallinarum and Pasteurella multocida, for the ethanolic plant extracts of the following plants: cinnamon (Cinnamomum verum), oregano (Origanum vulgare), redbird flower/ítamo/zapatilla del diablo (Euphorbia Euphorbia Euphorbia [Pedilanthus] tithymaloides), bougainville (Bougainvillea glabra Choisy), sierrecilla (Mimosa lacerata) and eucalyptus/Tasmanian bluegum (Eucalyptus globulus). From the ethanolic extracts, the phytochemical composition of the samples was determined, using chromogenic agents. Found were tannins, flavonoids, triterpenes, phenolic compounds and alkaloids. The in vitro anti-bacterial activity was assessed through the Kirby-Bauer technique. The sierrecilla extract showed the larger halo of inhibition with both bacteria, 2.16 cm for Pasteurella multocida and 2.43 cm for Avibacterium paragallinarum, using a concentration of 0.25 mg mL-1.

Keywords: Plant Polyextracts, Susceptibility, Bacteria, Chickens.