Negative effect of ectoparasite burdens on the condition factor from farmed tilapia Oreochromis niloticus in the Yucatan, Mexico

•The ectoparasitic burden have negative effect on condition factor of the Nile tilapia.•The fish with low K values (K≤ 0.25) were associated with a high ectoparasitic burden (295 ± 191).•Cichlidogyrus genus, Trichodina sp. and G. cichlidarum showed a negative effect in K values.•Ectoparasites can be...

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