Getting It Right With A.I. and Estrus Synchronization Willie Altenburg, Fort Collins Colorado
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1 Getting It Right With A.I. and Estrus Synchronization Willie Altenburg, Fort Collins Colorado
2 Wear Two Hats
3 US Beef Cow Inventory
4 US Beef Semen Sales and Custom Collected Semen 4 x 10 6 units
5 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
6 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
7 Heifers need to be in the correct body condition
8 Heifers to breed Not tooo fat! 65% of their mature body weight Gaining Not pregnant!
9 Use a professional..
10 Heifers + Cidrs
11 Heifers- Snip Tails
12 AIing Cows
13 Cidrs
14 AIing with Professional Technicians
15 Quality Semen is Certified Semen Services CSS Semen
16 2 cc s of Gnrh
17 5 cc s of prostaglandin
18 HEAT DETECTION Select Synch MGA Select Select Synch + CIDR MGA FIXED-TIME AI (TAI) CO-Synch + CIDR Perform TAI at 66 hr after with at TAI. MGA Select MGA CIDR BEEF COWPROTOCOLS HEAT DETECT & TIME AI (TAI) d 7 d Perform TAI at 72 hr after with at TAI. D.J. Schafer and D.J. Patterson Missouri Columbia Task Force. AI CIDR.. 66 hr AI 12 d 7 d.. 72 hr 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 hr after with at TAI. AI hr Select Synch + CIDR & TAI Heat detect and AI day 7 to 10 and TAI all non-responders hr after with at TAI. AI CIDR hr 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 hr after ) Low Medium/High Select Synch + CIDR (TAI nonresponders High Medium MGA hr after ) Select (TAI nonresponders 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 hr after with at TAI. MGA 0 14 AI 12 d 7 d hr Cystorelin, Factrel, Fertagyl, OvaCyst Estrumate, In-Synch, Lutalyse, ProstaMate
19 HEAT DETECTION 1 Shot CIDR - BEEF HEIFER PROTOCOLS HEAT DETECT & TIME AI (TAI) CIDR Select Synch + CIDR & TAI Heat detect and AI day 7 to 10 and TAI all non-responders hr after with at TAI. MGA - & TAI AI CIDR hr Heat detect and AI day 33 to 36 and TAI all non-responders hrs after with at TAI. MGA - MGA 19 d FIXED-TIME AI (TAI) CO-Synch + CIDR Perform TAI at 54 hr after with at TAI. MGA - AI CIDR.. 54 hr Perform TAI at 72 hr after with at TAI. MGA AI 19 d.. 72 hr 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 hr 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 hr after ) - (TAI nonresponders 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
20 Paying attention to the details will get you the results you desire from you re A.I. program
21 Thank you!
licle by expressing estrus (heat) and producing an LH surge. The LH surge causes ovulation, which begins the heifer s first cycle.
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