A STUDY ON SUCCESS OF ESTRUS SYNCHRONIZATION AND ARTIFICIAL INSEMINATION IN CATTLE

Abstract

An experiment was performed to synchronize estrus in cattle by the Mahideb Jubo Somaj Kallayan Somity under a project of Artificial Insemination in Dairy and Beef cattle at Ulipur upazila in Kurigram district for the year 2011. The aim of this project was to synchronize estrus of cattle as they give birth between September to November. My internship placement was ZIBIKA,CLP,Kurigram from 02/04/2012to 21/04/2012. I collected all recorded data about estrous synchronization for my clinical report from the Mahideb Jubo Somaj Kallayan Somity under a project of Artificial Insemination in Dairy and Beef cattle at Ulipur upazila in Kurigram district . Under the project 184 cattle were selected for synchronization of estrus. All selected cattle were dewormed, vaccinated against harmful diseases before synchronization treatment. Moreover they got a dose of prebiotic-probiotic combination and multivitamin before synchronization treatment. Among the selected cattle 165 were heifer and 19 were cow. The age of heifers were around 2.5-3years and cows parity were 1.The body condition score was above 3.5. The Ovsynch (First day GnRH-8th day PGF2α-10th day GnRH and estrous with 48hrs) method of estrus synchronization was followed. Injection GnRH (Fertilon®, Synthetic Gonadorelin-100microgram per ml , Dose-5ml/cattle, Marketed by Techno Drugs) at first day and Injection PGF2α( Dinoprost®, Trometamol-5mg per ml ,Dose-5ml/cattle, Marketed by Techno Drugs) at day 8th then again injection GnRH at day 10 was used. 122 heifers and 13 cows were respond to synchronized method . Overall conception rate was 51.51 and service per conception rate was 1.97.