Blood biochemical changes and thyroid hormones pattern of Barki ewes as affected by biological supplementation under semi-arid conditions of Egypt

Abstract

During the reproductive cycle of the ewe, pregnancy and lactation are critical periods and represent a physiological load on the ewes' body, which activates adaptation mechanisms in order to maintain normal homeostasis during late pregnancy period. Knowing the metabolic profile in this period is very important to specify nutritional status, as well as, to prevent health disorders which lead to production and reproduction disturbances (Boudebza et al., 2016).