Beef Synchronization Protocols Fixed - Time AI 7-day Co-synch & CIDR® for Beef Cows PG
Cidirol
GnRH
Cidirol
AI
CIDR® TM Insert Cue-Mate
Remove CIDR® TM Cue-Mate
CIDR® TM Insert Cue-Mate
Day of Schedule
Fixed - Time AI 7-day Co-synch & CIDR® for Beef Heifers
Cidirol .... 60-66 48 hr hrs ..
0
7
9
Day of Schedule
PG GnRH
Remove CIDR® TM Cue-Mate
AI
Cidirol
54 hrshr± ..2 hrs .. 48
10
0
7
AI on detected estrus
9
9 10
AI on detected estrus
Timed AI at 60-66 hours after CIDR® removal is critical. Inject GnRH at AI.
Timed AI at 54 hours (with + or - 2hrs) after CIDR® removal is critical. Inject GnRH at AI.
CIDR® with Prostaglandin 1
CIDR® with Prostaglandin 2
Cidirol
PG
CIDR® TM Insert Cue-Mate
CIDR® TM Remove Cue-Mate
0
7
Optional
Day of Schedule
Optional
Day of Schedule 11
Cidirol
CIDR® TM Insert Cue-Mate
PG
Remove CIDR® TM Cue-Mate
0
6
8
AI on detected estrus
11 AI on detected estrus
Prostaglandin injection may be given at the same time as CIDR® removal. Expect slightly less tightness of synchronization.
Day 6 PG tightens the AI period, so the extra muster on Day 6 can save two musters during AI period. CIDR® can be removed at Day 7.
CIDR® with Cidirol - Timed Insemination
eat Detection CIDR® with Cidirol - H & Timed Insemination
PG
Cidirol Day of Schedule
Cidirol
Remove CIDR® TM Cue-Mate
Insert Cue-Mate CIDR® TM 0
AI
Cidirol
7
8
Day of Schedule
9
CIDR® TM Insert Cue-Mate
PG Remove CIDR® TM Cue-Mate
Cidirol
AI
.. 48 hr .. 0
7
9
10
AI on detected estrus
Prostaglandin injection may be given at the same time as CIDR® (Day 7). Insemination on Day 9.
Inseminate on heat detection Days 7-9. Cows not detected, inject Cidirol on Day 9. Blanket AI Day 10.
ReSynch with CIDR® Day of Schedule
Insert Cue-Mate CIDR® TM
Remove Cue-Mate CIDR® TM
13 14 (±1 day)
20 21 (±1 day) Days after 1st insemination
For heifers, CIDR® can be inserted on Day 12 and removed on Day 19, without the use of cidirol. 24
AI on detected estrus
The Value of Synchronization Non Synchronized Day of Breeding Season
50% 1st Cycle
0
+50% 2nd Cycle 21
Synchronized
50% +50% 1st 2nd Cycle Day of Breeding Season 0
Up to 9 day advantage
+50% 3rd Cycle 42
+50% 3rd Cycle 23
63 +50% 4th Cycle
44
= 88% Total Pregnancy Rate
= 94% Total Pregnancy Rate
65
More Calves • More chances to conceive during the breeding season • Some synch systems induce cows to cycle earlier Heavier Calves • Calves born earlier on average • 9 days x 1.0 ADG x $1.80 = $16.20, which will pay for most synch programs.