Abstract
Late pregnancy is a critical period in prolific ewe, due to the metabolic and hormonal changes necessary for fetal development. These variations in physiological status affect the normal hematological values of animals. In addition, factors such as age, parity, and aliment also influence these hematological values. This paper details a study carried out on 74 ewes, of Rembi breed, aged 2 to 7 years old, and situated in semi intensive system coming from 10 farms in the region of Tiaret. The choice of ewes reaching the third trimester of pregnancy was made randomly in order to assess the changes in hematological profile of the ewes during this period, and the influence of certain factors on the latter. An increase in white blood cell WBC (18.3 × 103 / mm3), characterized mainly byanincrease of neutrophils and monocytes, and decrease in haematocrit (Ht), haemoglobin (HB) and red blood cell (RBC) values compared to normal values, were recorded. Statistical analyzes showed an influence of farm, type of aliment, and parity on the values of WBC, RBC, HB and Ht. The end of gestation in prolific sheep requires improvement in terms of type of aliment and hygiene in order to avoid anemia, metabolic diseases and infectious diseases.
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