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Synchronizing Estrus Need cycling cows! Methods Luteolysis Progestagen
Destroy Corpus luteum Progestagen Artificial corpus luteum
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Synchronizing estrus Methods Luteolysis Progestagen
Destroy corpus luteum Beef Dairy Progestagen Artificial corpus luteum
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Magic Cows
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Magic herd of 21 cows with each cow on a different day of the cycle
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Magic herd of 21 cows with each cow on a different day of the cycle
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Magic herd of 21 with each cow on a different day of the cycle
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 Magic herd of 21 with each cow on a different day of the cycle 5 days later Luteal
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Single Injection system
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One Injection Estrus in 3 days Luteal Breed 1 2 8 3 9 4 10 5 11 6 12 7
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Breed 8 9 10 11 12 13 14 One Injection Breed Estrus in 3 days Breed Luteal Breed Breed Breed Breed Breed Breed Breed Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed
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Double Injection System
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One Injection 11 days later Second injection Estrus in 3 days Luteal
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 11 days later Second injection 11 12 13 14 15 16 17 18 8 7 9 10 Comes into heat and Breed Comes into heat and Breed One Injection Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed Estrus in 3 days Comes into heat and Breed Comes into heat and Breed Luteal Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed Comes into heat and Breed
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Costs - Assumptions Number of cows 100 Palpation per cow 3
Lutalyse cost 3.15 Heat detection costs - 2hr per day $ per hr 5 Semen and breeding cost/cow 35 GnRH cost 7.3 CIDR 8.9 Assume Pregnancy rate = 50% Heat detection = 2 hrs/day for 5 days and is 100% Round up labor fixed for all systems
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Single Injection System
Costs Single Injection System Lutalyse 315 Heat detection 50 Semen and Breeding 1505 Cost/Preg 43 No. preg
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Costs Double Injection System Lutalyse 630 Heat detection 100
Lutalyse 630 Heat detection 100 Semen and Breeding 3500 Cost/Preg 85 No. preg 50
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Finished!
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