Fetal Dystocia in cattle

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Fetal Dystocia in cattle
By Prof. Dr. Shehata Hassan Mohamed
Dept. of Theriogenology Fac.Vet.
Med.Assiut University
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Normal PPP . ????? ??????? ??????

• longitudinal Presentation , either anterior
  (95), or posterior (5).
• Dorso sacral in position
• Normal Posture (complete extension of the free
  extremities head,neck and limbs)

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There are some essential requirements to apply
traction force 1-Normal p.p.p. 2-Normal sized
fetus 3-Normal bony and soft birth way 3-
Adequate cervical dilatation. 4-Slippery birth
way (either with adequate normal or artificial
fetal fluids)
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??? ?????? ?? ????? Traction Force

???? right Alternative traction
??? wrong
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Deviated head
Lateral( Right)
Cohen's crutch
Correction by robes
Correction by hooks
Downward
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Downward deviated head
Correction by hand
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Rotation using torsion Fork
Posterior presentation, dorso pubic and rotation
by Fork
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Downward deviated head
Correction by hand
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Evaluation of reproduction Performance
(Fertility index)
Calving fert.inse.
Dry off calving
0 4 85
309 365
Cholest.
Gestation period 280 d.
Lactation period 305 d.
Dry P.56 d
Calving interval 365d.
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Fertility index
1. Calving Interval no. of days (mos.) which
elapse between successive calving dates 2. Days
Open no. of days from calving to date of
conception 3. Days to First Observed Heat no.
days from calving to first observed heat 4. First
Service Conception Rate () of cows that
became pregnant after only one insemination 5.
Overall Conception Rate (all cows) cows
confirmed pregnant x 100
total svc. for all cows
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Following Fertility index
6. Services/Conception (all cows) Total
svc. for all cows cows confirmed
pregnant 7. Services/Conception (pregnant cows)
Total svc. for preg. cows
cows confirmed pregnant
8. 60 or 90-Day Non-Return Rate - used by A.I.
organizations to evaluate bulls - cows bred by
A.I. technician not presented for second breeding
within 60 or 90 day period
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Thanks for your attention
With my best wishes to all
Prof.Dr.
Shehata