1. 2018 AG Coffee Shop 3.21.18 Dan Stein
Review of the 2018 (FT–AI) Synchronization Protocols and Resources available to the Producer
2018 AG Coffee Shop
Dan Stein

2. At the beginning of the Breeding Season, most cow herds will consist of a mixture of:
Non-cycling (anestrous) cows (heifers)…
and
Cycling cows (heifers)…

3. Role of Progesterone and GnRH in Initiating normal Estrous Cycles in anestrous Cows:
Administration of GnRH (7 days) before treatment with PGF2α has been shown to increase estrus and ovulation rate in anestrous cows…
Induction rate appears to be highest when cows receive a combination of Progestin and GnRH…
(Stevenson et al., 2003)
Many synchronization protocols will include the use of Progesterone and GnRH…

4. The ability to induce ovulation in anestrous primiparous cows was limited (< 20%) when BCS was less than 5.
Smith, Pohler, Perry and Patterson, 2011

9. dinoprost tromethamine
Prostaglandin
dinoprost tromethamine 22
5cc
Lutalyse
ProstaMate
Lutalyse HiCon
In-Synch 22
2cc
Federal (USA) law restricts this drug to use by or on the order of a licensed veterinarian

10. Prostaglandin cloprostenol sodium 2cc Estrumate Synchsure™ estroPLAN22
2cc
Estrumate
Synchsure™
estroPLAN
Federal (USA) law restricts this drug to use by or on the order of a licensed veterinarian

11. GnRH 2cc 1cc Cystorelin Fertagyl Ovacyst Factrel GONAbreed22 22
2cc
1cc
GONAbreed is approved by FDA for use in combination with Cloprostenol Sodium…
FACTREL is approved by FDA for use in combination with Dinoprost Tromethamine...
Federal (USA) law restricts this drug to use by or on the order of a licensed veterinarian

12. Progestins CIDR MGA Eazi-Breed (TM) – (single use)
(0.5 mg/head/day)
MGA should be fed at the same time period every day…
…can have break-through’s (split and feed 2X/day)…
T- Shaped (3 Parts)
Nylon Spine – provides rigidity for retention
Silicone Coat – contains 1.38 g progesterone
Nylon tail for ease of removal

13. Can I afford to FT-AI?
The ability to induce ovulation in anestrous primiparous cows was limited (< 20%) when BCS was less than 5…
GnRH
$2.74
CIDR
$14.20 PG
$2.77
Semen
$25.00
Total
$47.45
The time listed for “Fixed-time AI” should be considered as the approximate average time of insemination based on the number of cows to inseminate, labor, and facilities…

15. *

20. *D.J. Drake et al. 2011 2 to 5 bulls/cow to bull ratio ~25:1
Can I afford to FT-AI?
Hd./year
Hd./4 yr. lifetime
Calves produced a year in multi-sire pasture*
18 ± 5 72
Cost of a high accuracy bull** - sale average
$3,800.00
Cost of 7-day protocol + semen
$47.75
Number of cows that can be bred FT-AI per cost of bull** ($3, ÷ $47.75) 79
Number of calves to FT-AI (65% Pregnancy Rate) 51
*D.J. Drake et al to 5 bulls/cow to bull ratio ~25:1
(semen = $25.00)

21. *D.J. Drake et al. 2011 2 to 5 bulls/cow to bull ratio ~25:1
Can I afford to FT-AI?
Hd./year
Hd./4 yr. lifetime
Calves produced a year in multi-sire pasture*
18 ± 5 72
Cost of a high accuracy bull** - sale average
$3,800.00
Cost of 7-day protocol + semen
$47.75
Number of cows that can be bred FT-AI per cost of bull** ($3, ÷ $37.75) (semen = $15.00)
100
Number of calves to FT-AI (65% Pregnancy Rate) 65
*D.J. Drake et al to 5 bulls/cow to bull ratio ~25:1

22. Questions ?