prrs control on commercial farm thesaloniki , greece
Post on 23-Feb-2016
60 Views
Preview:
DESCRIPTION
TRANSCRIPT
PRRS control on commercial farmThesaloniki, Greece
Waldemar Szczurek Poland
Case study
• 700 sows herd farrow-finnish• 2 site production• genetics Danbred• feed production• AI and semen production
Health status
• PRRS +• M. hyo +• Atrophic rhinitis +• APP +• Leptospira + • Lawsonia intracellularis +• PMWS in 2002
Production results
• Farrowing rate 83-87%• Born total 14,8• Born alive 13-14 last 4 years• Weaners sold 19500 last year
Epidemio-clinic description
• PRRS outbreak 1999• Abortions (mostly 104th day)• Weak piglets• Stillbirth• Irregular returns to estrus
Diagnostic hypothesis
Typical PRRS outbreak serologicaly confirmed
Preventive and curative recomendations
• Vaccines not available• Isolation of boars and regular checks of semen
and serum• Isolation of gilts before introduction into herd• Introduction of gilts after ca. 2 month post
delivery from fattening unit• Use of disposable needles for sows and piglets
Interesting point
Since 1999 production is not affected by PRRS. Vaccines were never introduced into this herd. Serological tests were made every 3 month at the beginning, later twice a year, now sometimes.Biosecurity is a main concern.
top related