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After AI

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After AI

KORAY TEKIN

Ankara Üniversitesi, Veteriner Fakültesi

Reprodüksiyon ve Suni Tohumlama Anabilim Dalı

(2)

Non-Pregnant

• Metestrus or Diestrus (90 days) False pregnancy

• Anestrus (5 months)

Sexual inactivity

(3)

Hormonal Changes

-10 0 10

-20

Proestrus Estrus Anestrus

FSH FSH E E

22

LH Progesterone Progesterone

Days from LH Peak Ovulation Ovulation

2

(4)

10 30 50 Day of Metestrus

70 90

Progesterone

E

2

No Uterine

Luteolytic Mechanism

Prolactin Prolactin Estrus 20 day

Metestrus I Metestrus II 70 days

0

Diestrus

(5)

Pregnancy

• 63 days (58-68)

Range due to dating from breeding not fertilization

Hormonal Changes

Similar to not mated

Progesterone maintained higher CL required to maintain pregnancy

No placental progesterone

Placental relaxin

• Drop in progesterone triggers parturition

Detection

Adominal palpation at 3 - 4 weeks Ultrasound after day 16

Parturition

Hormones similar to other farm animals

(6)

Parturition

• Delayed Parturtion Primary inertia

Does not show signs of parturition

Does not progress from stage 1 - stage 2

If green fluid, Caesarian

Give oxytocin in several small doses

• Secondary inertia

Uterine exhaustion

Oxytocin

Referanslar

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