Changes in hematological parameters in sahiwal cows reaching to estrus following PGF2α (double) injections

Abstract

PGF2α being a luteolytic agent regulates the lifespan of the corpus luteum on the ovary and is therefore, used for estrus synchronization. The present study was conducted on 6 non-inseminated, non-pregnant, anestrus (pre or post-service) or repeat breeder Sahiwal cows. Blood samples were collected after double injections of PGF2α for haematological analysis on day 0, 11, 12, 13 & 14. TLC (thousands/ µl), TEC (millions /µl), Hb (%), PCV (%), MCV (fl), MCH (pg) and MCHC (g/dl) were evaluated by using an automatic blood analyser. The study indicated no significant changes in the TEC, Hb, PCV, MCV, MCH and MCHC during estrus synchronization with double PGF2α protocol. The alteration in blood picture of cow on day of induced estrus (day 14) was non significant decrease in TEC, Hb and PCV.