This ppt is related to Estrus synchronization in animals .

1. Estrus Synchronization
‫وقت‬‫ئي‬‫ساڳ‬
‫وهر‬
‫ڻڻ‬‫آ‬‫۾‬

2. Estrus Synchronization
 Bringing a group of females into estrus (heat) at a predetermined time
with the use of hormones is called Estrus Synchronization (ES).

3. Advantages
1. Allow an organized efficient approach of AI
2. Reduce kidding interval
3. More uniform weaning weights.
4. Reduce time required for estrus detection.
5. Labor saving tool
6. Support in Timed AI

4. Products Currently Utilized in Protocols to
Synchronize Estrus
 Prostaglandin F2 (PG)
Lutalyse®, Estrumate®, ProstaMate®, In Synch®
 Gonadotropin-Releasing Hormone (GnRH)
Cystorelin®, Factrel®, Fertagyl®
 Estrogen Stilbesterool
 Progesterone. Same name
 Melengestrol Acetate (MGA® Premix)
 EAZI-BREED™ CIDR®

5. Methods
1. Extending the Luteal Phase
Long term Administration of progesterone
Produce negative feed back on LH secretion
Oraly pessaries ear implant, intra vaginal devices
PRID CIDR

6. 2.Shortening the Luteal Phase
It causes premature regression of CL (Lutolysis)
Estrogen and Prostaglandin and Analogue.
Protaglandin Regressis within 24-72 hours

9. protocols
Prostaglandin (PGF)
2 Injection 11 days apart.
Animal may be bred after Detection of heat
or
Inseminated after 72 and 96 hours without mentioning
estrus.

10. Cost $4.70/head

11. Progestin and PGF
• Progestin may be injected, orally PRID CIDR, Ear Implants
•
• PGF injected after 6 days of Progestin injection
• insemination upon detection of estrus.

13. Progestin and Estrogen
Progestin source from day 1 to Day 7
Inject Estrogen on day one
Remove CIDR on day 7
Inseminate 3 to 5 days after detection of heat or TAI

14. Cost $8.00/head

15. CIDR

16. CIDR Insertion

17. GnRH PGF And GnRH
• GnRH day one
• PGF Day 7
• GnRH day 8-9
• Inseminate upon detection of estus or TAI after 72 and 96 hours