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HEAT DETECTIONSelect SynchGnRHBEEF COW PROTOCOLS - 2011PGHEAT DETECT & TIME AI (TAI)Select Synch & TAIHeat detect and AI day 6 to 10 and TAI all non-responders72 – 84 hr after PG with GnRH at TAI.GnRH0 6GnRHtreatment day7 13Heat detect & AIPGGnRHSelect Synch + CIDR ® & TAIHeat detect and AI day 7 to 10 and TAI all non-responders 72 - 84 hrafter PG with GnRH at TAI.0 6 710treatment dayHeat detect & AIGnRHPGPG.. 72 - 84 hr ..AIGnRHSelect Synch + CIDR ® 7 1390treatment day Heat detect & AIPG 6-day CIDR ®Heat detect and AI days 0 to 3. Administer CIDR to non-responders and heatdetect and AI days 9 to 12. Protocol may be used in heifers.GnRHPGPGCIDR ®0312CIDR ®Heat detect & AItreatment dayHeat detect & AIFIXED-TIME AI (TAI)*7-day CO-Synch + CIDR ®Perform TAI at 60 to 66 hr after PG with GnRH at TAI.GnRHCIDR ®5-day CO-Synch + CIDR ®PG.. 60 - 66 hr ..GnRHAI0 710treatment dayPerform TAI at 72 ± 2 hr after 1 st PG with GnRH at TAI.Two injections of PG 8 ± 2 hr apart are required for this protocol.Working Draft 11-29-10GnRHCIDR ®PGPGGnRHAI8±2 hr…..72 ± 2 hr..0 58treatment dayBeef Reproduction Task Force0GnRH Cystorelin ® , Factrel ® , Fertagyl ® , OvaCyst ®PGCIDR ®treatment dayPG 6-day CIDR ® & TAIPG3estroPLAN ® , Estrumate ® , In-Synch ® ,Lutalyse ® , ProstaMate ®7.. 72 - 84 hr ..AI10Heat detect & AIHeat detect & AI days 0 to 3. Administer CIDR to non-responders & heatdetect and AI days 9 to 12. TAI non-responders 72 - 84 hr after CIDR removalwith GnRH at AI. Protocol may be used in heifers.GnRHGnRHPG0Heat detect & AI9.. 72 - 84 hr ..AI12Heat detect & AICOMPARISON OF PROTOCOLS FOR BEEF COWSHEAT DETECTION COST LABORSelect Synch Low Medium/HighSelect Synch + CIDR ® High MediumPG 6-day CIDR ® Medium Medium/HighHEAT DETECT & TAISelect Synch(TAI non-responders 72-84 hr after PG)CIDR ®treatment daySelect Synch + CIDR ®(TAI non-responders 72-84 hr after PG)PG 6-day CIDR ®(TAI non-responders 72-84 hr after PG)FIXED-TIME AI (TAI)7-day CO-Synch + CIDR ®(TAI 60 to 66 hr after PG with GnRH at TAI)5-day CO-Synch + CIDR ®(TAI 72 ± 2 hr after 1 st PG with GnRH at TAI)LowHighMediumHighHighMedium/HighMediumMedium/HighMediumHigh• The times listed for “Fixed-time AI” should be considered as theapproximate average time of insemination. This should be based on thenumber of cows to inseminate, labor, and facilities.

Working Draft 11-29-10Beef Reproduction Task ForceHEAT DETECTION1 Shot PG7-day CIDR ® -PGMGA ® -PGMGAtreatment dayBEEF HEIFER PROTOCOLS - 2011PG0 512Heat detect & AIHEAT DETECT & TIME AI (TAI)Select Synch + CIDR ® & TAIMGA ® -PG & TAIMGA1 14®MGA1 1433 39Heat detect & AItreatment dayFIXED-TIME AI (TAI)*7-day CO-Synch + CIDR ®MGA ® -PGMGA1 14GnRHCIDR ®0 7 13Heat detect & AItreatment day… 19 d …Perform TAI at 54 ± 2 hr after PG with GnRH at TAI.CIDR ®0 7treatment dayPerform TAI at 72 ± 2 hr after PG with GnRH at TAI.14-day CIDR ® -PG… 19 d …treatment dayPerform TAI at 66 ± 2 hr after PG with GnRH at TAI.PGPGPGPG.. 54 ± 2 hr ..72 ± 2 hrGnRHAI9GnRHAI33 36GnRHHeat detect and AI day 7 to 10 and TAI all non-responders72 - 84 hr after PG with GnRH at TAI.GnRHCIDR ®PG0 treatment day 7Heat detect and AI day 33 to 36 and TAI all non-responders72 - 84 hrs after PG with GnRH at TAI.Heat detect & AIPG33GnRHAI10GnRHAI36Heat detect & AICOMPARISON OF PROTOCOLS FOR BEEF HEIFERSHEAT DETECTION COST LABOR1 Shot PG Low High7-day CIDR ® -PG High MediumMGA ® -PG Low Low/MediumHEAT DETECT & TAI… 19 d …treatment day14-day CIDR ® -PG & TAISelect Synch + CIDR ®(TAI non-responders 72-84 hr after PG)MGA ® -PG(TAI non-responders 72-84 hr after PG)14-day CIDR ® -PG(TAI non-responders 70-74 hr after PG)FIXED-TIME AI (TAI)HighMediumHighCO-Synch + CIDR ®High(TAI 54 ± 2 hr after PG with GnRH at TAI)MGA ® -PGMedium(TAI 72 ± 2 hr after PG with GnRH at TAI)14-day CIDR ® -PGHigh(TAI 66 ± 2 hr after PG with GnRH at TAI).. 72 - 84 hr .... 72 - 84 hr ..GnRHHeat detect and AI day 30 to 33 and TAI all non-responders72 hrs after PG with GnRH at TAI.PG AICIDR ® … 16 d …..70 - 74 hr ..0 14 treatment day 30 33Heat detect & AIMediumMediumMediumMediumMediumMedium• The times listed for “Fixed-time AI” should be considered as theapproximate average time of insemination. This should be based on thenumber of heifers to inseminate, labor, and facilities.CIDR ®0 14... 16 d …treatment dayPG AI66 ± 2 hr30 33GnRHPGCystorelin ® , Factrel ® , Fertagyl ® , OvaCyst ®estroPLAN ® , Estrumate ® , In-Synch ® , Lutalyse ® , ProstaMate ®