WEB Vetnews May 2015

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Mei/May 2015 33 vetnuus•news
Regulars I Merial pages
remove bot eggs while grooming.
• Tapeworms and macrocyclic
lactone – may have to add double
dose pyrantel or praziquantel that
year – preferably blood sample
for tapeworm ELISA to see if
treatment required.
Rapid rotation with more
than one class of drug within
the year
Should not be used as it promotes
multiple anthelmintic resistance
• Different anthelmintic classes are
used throughout a year at intervals
of 1-2 months and will cover all
types of parasites.
• Requires frequent post-dosing
faecal egg count reduction tests
to monitor resistance (but as the
test is insensitive, resistance will
already have established).
• Disadvantage: likely to select for
multiple drug resistance.
• Advantage: all parasites are
targeted during the same year.
Classes of drugs may be selected
for their activities at certain times
of the year, e.g. encysted small
strongyles, bots.
Seasonal/strategic dosing
• Use of anthelmintics at specific
times of the year, aimed at
disrupting the seasonal cycle of
transmission, i.e. at turn-out and
at intervals through spring and
summer.
• Advantages: reduces pasture
contamination; most effective on
farms where few new horses are
introduced.
• Disadvantages: problems may
arise with abnormal seasons (eggs
can develop in mild winters in
temperate climates); breakdown
if heavily infested horse in
introduced; does not take into
account age groups. v
Further reading available on request.
Reprinted with permission from Vetstream Equis, ISSN: 1757-8272. .
com/equis/Content/Freeform/fre00645
Tydens die Dankdiens wat op 21
Maart 2015 vir Raoul gehou is, is daar
onder meer getuig dat hy ‘n baie vol
lewe gelei het, inderdaad alles in die
oortreffende trap gedoen het: of dit
nou was as ‘raconteur’ van formaat,
uitgewer van tydskrifte en boeke,
musiekversamelaar, toegewyde jagter
van veral jagvoëls, gulle gasheer
vir vriende, vreeslose, wydbelese
argumenteerder, en bowenal sy liefde
en waardering vir sy vrou Dagmar,
seuns Cornell en André, hulle gades en
sy drie begaafde kleinkinders.
Raoul se uitverkore C Louis Leipoldt
gedig se eerste vers lui:
Hier wil ek rus op ons vaal Karoo –
Hier, waar die veld ‘n leegte is –
Hier, by die slang en die akkedis –
Hier, met die hemel blou daarbo.
Mag hy die welverdiende rus in ons
land se veld wat hy so intens gekoester
het, geniet. v
Rudolph Bigalke
IN MEMORIAM <<< 31
MERIAL <<< 32
OFTEN, THE MERE TELLING OF YOUR STORY IS BOTH HEALING & MOTIVATING
Prof Ken Pettey Cell: 082 882 7356 Email:
Dr Sunelle Strydom Cell: 083 287 2196 Email:
Dr Aileen Pypers Cell: 072 599 8737 Email:
Dr Willem Schultheiss Cell: 082 323 7019 Email:
Dr Henk Basson Cell: 082 820 4810 Email:
Dr Joseph van Heerden Cell: 083 305 6474 Email:
Dr Stuart Varrie Cell: 083 650 3651 Email:
The following SAVA members are available on the SAVA stress management
hotline. If required, they will refer you to professionals.
The SAVA
Stress
Management
Hotline
is there to assist
members who
are experiencing
personal problems
by offering access
to professional
counselling/advice.
The hotline can assist
with referrals or
simply offer much
needed emotional
support when anxiety,
depression, anger, grief,
loneliness and fear are
at their highest.