Reproductive parameters of breeding stallions in response to a moderate physical conditioning program /

50 foot diameter roundpen, was as follows: each stallion was

Bibliographic Details
Main Author: Taylor, Michelle Joy
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1997.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:50 foot diameter roundpen, was as follows: each stallion was
8 after the initial day of exercise and by d 10 after the
abnormal midpieces was observed for stallions 1, 2 and 3 by d
an 8 wk forced exercise period (EP). Blood was collected
confinement (stalls) with no exercise for an initial period
cortisol, LH and testosterone concentrations. A significant
decrease in the percentage of morphologically normal
fitted with a heart rate (HR) monitor; walked for I min,
Five breeding stallions, age 7 to I 1 years, were kept in
for 30 min (electric horse walker) twice weekly (Sat., Sun.).
for the percentage of progressively motile spermatozoa, total
Fri.). Additional exercise was received when they were walked
horse walker) three times per wk for 8 weeks (Mon., Wed.,
hourly for a 6 h period the day prior to and the day after
initial day of exercise for stallions 4 and 5.
min was observed and then for an additional 5 min at that HR,
morphology, gel and get-free semen volume and total
motility analyzer, semen concentration, spermatozoal
of 60 days. A ten-day daily sperm output (DSO) determination
Semen was collected for evaluation twice weekly during the 8
significant. Significant post-EP differences were observed
spermatozoa and a significant increase in the percentage of
spermatozoa number, Pre- and post-EP values for individual
spermatozoa, gel-free semen volume and mean blood plasma
spermatozoal motility with a computer assisted spermatozoal
spermatozoal motility, percentage of morphologically normal
stallions were compared and P < .05 was considered
the end of the 8 wk EP. The exercise trial, performed in a
the final 3 d of the two DSO determinations was analyzed for
trotted for 2 min, exercised until a HR of 165-180 beats per
trotted for a final 2 min; then walked for 30 min (electric
was performed immediately before (pre-EP) and after (post-EP)
wk EP on the 2 d with no exercise (Tue, Thur.). Semen from
Item Description:"Major subject: Physiology of Reproduction".
Vita.
Physical Description:x, 62 leaves : illustrations ; 28 cm.
Also available online.
Issued also on microfiche from Lange Micrographics.
Bibliography:Includes bibliographical references: pages 40-42.