Getting It Right With A.I. and Estrus Synchronization Willie Altenburg, Fort Collins Colorado
Wear Two Hats
US Beef Cow Inventory http://www.nass.usda.gov
US Beef Semen Sales and Custom Collected Semen 4 x 10 6 units http://www.naab-css.org/sales/table_list.html
Four Independent Factors Affecting AI Pregnancy A = % of the Herd Inseminated (Herd nutrition, post partum interval) B = Inseminator Efficiency C = Fertility of the Herd D = Semen Quality
Trouble Shooting A.I. Programs A = % of the Herd Inseminated (Herd nutrition, post partum interval) B = Inseminator Efficiency C = Fertility of the Herd D = Semen Quality
Heifers need to be in the correct body condition
Heifers to breed Not tooo fat! 65% of their mature body weight Gaining Not pregnant!
Use a professional..
Heifers + Cidrs
Heifers- Snip Tails
AIing Cows
Cidrs
AIing with Professional Technicians
Quality Semen is Certified Semen Services CSS Semen
2 cc s of Gnrh
5 cc s of prostaglandin
HEAT DETECTION Select Synch MGA Select Select Synch + CIDR MGA 0 14 0 4 FIXED-TIME AI (TAI) CO-Synch + CIDR Perform TAI at 66 hr after with at TAI. MGA Select MGA 0 14 0 CIDR BEEF COWPROTOCOLS HEAT DETECT & TIME AI (TAI) 7 13 7 13 12 d 7 d 26 33 39 Perform TAI at 72 hr after with at TAI. D.J. Schafer and D.J. Patterson Missouri Columbia Task Force. AI CIDR.. 66 hr.. 0 7 10 AI 12 d 7 d.. 72 hr.. 26 33 36 Division of Animal Sciences - University of These protocols are recommended by the North Central Region Bovine Reproduction Select Synch & TAI Heat detect and AI day 4 to 10 and TAI all non-responders 72 84 hr after with at TAI. AI.. 72-84 hr.. 0 4 7 10 Select Synch + CIDR & TAI Heat detect and AI day 7 to 10 and TAI all non-responders 72-84 hr after with at TAI. AI CIDR.. 72-84 hr.. 0 7 10 COMPARISON OF PROTOCOLS FOR BEEF COWS HEAT DETECTION COST LABOR Select Synch Low Medium/High Select Synch + CIDR High Medium MGA Select Medium Medium/High HEAT DETECT & TAI Select Synch (TAI nonresponders 72-84 hr after ) Low Medium/High Select Synch + CIDR (TAI nonresponders High Medium MGA 72-84 hr after ) Select (TAI nonresponders 72-84 hr after ) Medium Medium/High FIXED-TIME AI (TAI) CO-Synch + CIDR (TAI at 66 hr High Medium after MGA with at TAI) Select (TAI at 72 hr after with at TAI) Medium High The times listed for Fixed-time AI should be considered as the approximate average time of insemination. This should be based on the number of cows to inseminate, labor, and facilities. MGA Select & TAI Heat detect and AI day 33 to 36 and TAI all non-responders 72-84 hr after with at TAI. MGA 0 14 AI 12 d 7 d.. 72-84 hr.. 26 33 36 Cystorelin, Factrel, Fertagyl, OvaCyst Estrumate, In-Synch, Lutalyse, ProstaMate
HEAT DETECTION 1 Shot CIDR - BEEF HEIFER PROTOCOLS HEAT DETECT & TIME AI (TAI) -5 0 6 CIDR 0 7 13 Select Synch + CIDR & TAI Heat detect and AI day 7 to 10 and TAI all non-responders 72-84 hr after with at TAI. MGA - & TAI AI CIDR.. 72-84 hr.. 0 7 10 Heat detect and AI day 33 to 36 and TAI all non-responders 72-84 hrs after with at TAI. MGA - MGA 19 d 0 14 33 39 FIXED-TIME AI (TAI) CO-Synch + CIDR Perform TAI at 54 hr after with at TAI. MGA - AI CIDR.. 54 hr.. 0 7 9 Perform TAI at 72 hr after with at TAI. MGA AI 19 d.. 72 hr.. 0 14 33 36 D.J. Schafer and D.J. Patterson Division of Animal Sciences - University of Missouri Columbia These protocols are recommended by the North Central Region Bovine Reproduction Task Force. MGA 0 14 AI.. 72-84 hr.. 33 36 COMPARISON OF PROTOCOLS FOR BEEF HEIFERS HEAT DETECTION COST LABOR 1 Shot Low High CIDR - Medium Medium MGA - Low Low/Medium HEAT DETECT & TAI Select Synch + CIDR (TAI nonresponders High Medium MGA 72-84 hr after ) - (TAI nonresponders 72-84 hr after ) Medium Medium FIXED-TIME AI (TAI) CO-Synch + CIDR (TAI at 54 hr after High Medium with MGA at TAI) - (TAI at 72 hr after with at TAI) Medium Medium The times listed for Fixed-time AI should be considered as the approximate average time of insemination. This should be based on the number of heifers to inseminate, labor, and facilities. 19 d Cystorelin, Factrel, Fertagyl, OvaCyst Estrumate, In-Synch, Lutalyse, ProstaMate
Paying attention to the details will get you the results you desire from you re A.I. program
Thank you!