Event Title
Insertion of a Used CIDR on Day 3 to 5 Post-Insemination in Heifers to Improve Pregnancy Rate
Faculty Mentor
Edward Ferguson
Location
Farrar Hall, Room 131
Session
Session 3
Start Date
20-4-2012 1:15 PM
End Date
20-4-2012 2:15 PM
Description
The study was designed to determine if increasing progesterone (P4) post-insemination could improve pregnancy rates. Beef heifers were randomly allotted to receive a controlled internal drug, P4, releasing device (CIDR) on day 3 to 5 or serve as a control. In Replicate 1, significantly more treated heifers became pregnant than control heifers (P < 0.05); however, there was no difference (P > 0.05) in the pregnancy rate in Replicate 2. Among control heifers in Replicate 2, pregnant heifers had significantly higher (P < 0.05) plasma P4 on day 4 and 5 compared with non-pregnant heifers.
Insertion of a Used CIDR on Day 3 to 5 Post-Insemination in Heifers to Improve Pregnancy Rate
Farrar Hall, Room 131
The study was designed to determine if increasing progesterone (P4) post-insemination could improve pregnancy rates. Beef heifers were randomly allotted to receive a controlled internal drug, P4, releasing device (CIDR) on day 3 to 5 or serve as a control. In Replicate 1, significantly more treated heifers became pregnant than control heifers (P < 0.05); however, there was no difference (P > 0.05) in the pregnancy rate in Replicate 2. Among control heifers in Replicate 2, pregnant heifers had significantly higher (P < 0.05) plasma P4 on day 4 and 5 compared with non-pregnant heifers.