Effect of L-carnitine and melatonin on cryosurvival and fertility of spermatozoa of creole roosters (Gallus gallus domesticus)

Keywords: Gallus gallus domesticus, sperm cryopreservation, artificial insemination, reproductive biotechnologies, Ecuador


The production of Creole chicken (Gallus gallus domesticus) in Ecuador is of transcendental importance in the economy and nutrition of rural and city families. Creole chicken has been considered a valuable genetic resource in backyard production, constituting an important economic resource and a basic product in the traditional diet. Therefore, it is necessary to search for biotechnological alternatives to maximize the use of this indigenous genetic material. Sperm cryopreservation and artificial insemination (AI) of birds has been used successfully in hens of different breeds; however, as far as we know, the use of these reproductive biotechnologies in Creole birds in Ecuador is deficient or null. Avian spermatozoa become vulnerable to free radicals (eg H2O2, O2- and OH-) due to polyunsaturated fatty acids (PUFA) present in the plasma membrane. Consequently, ROS easily combine with PUFAs and lead to the production of lipid peroxidation (LPO), causing decreased motility, viability and fertilizing capacity of rooster sperm. In this sense, this research evaluated the effects of ME and LC supplemented to the freezing medium on the cryosurvival and fertility of spermatozoa from Creole roosters (Gallus gallus domesticus).


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Author Biography

Diego Andrés Galarza Lucero, Universidad de Cuenca

Profesor Titular Agregado 1, Facultad de Cienicas Agropecuarias, Escuela de Medicina Veterinaria y Zootecnia


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How to Cite
Galarza Lucero, Diego Andrés, Luis M. Guachichullca, and Juan P. Hernández. 2022. “Effect of L-Carnitine and Melatonin on Cryosurvival and Fertility of Spermatozoa of Creole Roosters (Gallus Gallus Domesticus)”. Latin American Archives of Animal Production 30 (Supl. 2), 107-10. https://doi.org/10.53588/alpa.300620.