2.8. Animals
Leghorn chickens (10 weeks old) were purchased from the Center for Laboratory Animal Breeding (CENPALAB, Havana, Cuba).Animals were housed under conventional conditions with free access to water and food and maintained in
accordance with the guidelines stipulated by the Animal Subject Committee ReviewBoard of CENPALAB. Animal studies were performed with approval from CENPALAB’s and CIM’s Institutional Animal Care and Use Committees.