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Cattle Reproduction. Jason Ahola PhD Graduate Student Department of Animal Sciences Colorado State University. Follicles and New Corpus Luteum. Mature Corpus Luteum. Reproductive Tract. Cow’s Reproductive Cycle. Anatomy. Physiology. Ovary. Corpus Luteum. Insemination Timeline.
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Cattle Reproduction Jason Ahola PhD Graduate Student Department of Animal Sciences Colorado State University
Follicles and New Corpus Luteum Mature Corpus Luteum Reproductive Tract Cow’s Reproductive Cycle
Corpus Luteum
Single Injection w/ Post-Breeding Inject PGF2 Turn in Bulls Day 0 Day 5 Check for estrus and inseminate
Select Synch GnRH injection PGF2 injection Day 0 Day 7 Check for heat and breed Day 6 to12
MGA-GnRH-PG (MGA® Select) Turn in Bulls Inject GnRH Inject PGF2 Feed MGA 0.5 mg/hd/d Day 0 Day 14 Day 24 Day 33 Day 36 Sub-fertile heat Check for estrus and inseminate.
Comparing the Options Treatment Estrus Response Pregnancy Rate
1. Transmitter with pressure sensitive button on top 3. The receiver accepts the mounting activity signal from the transmitter Receiver ~1/2 mile range 2. Mounted onto cow’s rump using a patch and adhesive ))))))))))))))))))))))))))))))))) 4. Information is transferred to computer for processing by HeatWatch software. Heat Watch