❞ كتاب 22 injuriesdiseasecalving93 ❝

22 injuriesdiseasecalving93

22 injuriesdiseasecalving93 من كتب طب بيطرى

Animal Care and Health Maintenance
1993
1
INJURIES AND
DISEASES
OF BEEF CA
TTLE
ASSO-
CIA
TED WITH CAL
VING
S. P. Cuneo,
1
DVM; C. S. Card,
2, 3
DVM, PhD; E. J. Bicknell,
2, 3
DVM PhD
The pay-off for cow-calf producers is
being able to sell a weaned calf. To get
this calf to market you must first get your
cow pregnant and have her deliver a live
calf. There are several common prob-
lems that affect cows from late preg-
nancy through calving.Many of these
problems that occur during calving have
a rapid onset and require a rapid re-
sponse, the good news is that if they are
attended to early they often have no
permanent effect on subsequent breed-
ing.
This publication will present common
reproductive problems affecting beef
cattle, a short description, underlying
causes and possible prevention and
common treatment. These problems are
presented generally in chronological
order, from those conditions seen before
calving starts, through the immediate
post-calving interval.
1.
PROBLEMS PRE-CALVING:
vaginal/rectal prolapse
ketosi
s
2.
PROBLEMS AT CALVING:
dystocia
bruises, laceration, rupture
uterine prolapse
milk fever
obturator paralysis/downer cow
retained placenta
grass tetany
1.
PRE-CALVING:
Vaginal/Rectal Prolapse
Vaginal/Rectal Prolapse
Vaginal/Rectal Prolapse
Causes
The tissue around the birth
canal becomes relaxed as the
cow starts the last third of
gestation, increased pressure
in the abdominal cavity will
push the vagina or the rectum
out. If the tissue is trapped
outside the birth canal it will
swell and may become in-
fected. In some cases the
bladder is also trapped and the
animal is unable to urinate.
This condition is more common
in older cows but may occur in
first calf heifers.
There may be a genetic link.
Overly fat cattle and cattle on
pasture with a high legume
concentration are at higher risk.
Treatment
Epidural anesthetic is usually
necessary.
Replace the tissue and suture
in place.
Vaginal sutures must be
removed before calving.
Prevention
Remove animals from the herd
that develop this condition,
don’t keep animals that have
pre-calving prolapses.
Don’t allow cows to gain too
much weight during the last
trimester of pregnancy.
Animal Care and Health Maintenance
1993
1
INJURIES AND
DISEASES
OF BEEF CA
TTLE
ASSO-
CIA
TED WITH CAL
VING . المزيد..