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“We know that vaccinating can decrease the amount of viruses in the air, so vaccination is a good mechanism to prevent airborne transmission” Swine veterinary consultant Dr. Carmen Alonso in Spain picks out lessons from her detailed studies of air samples inside and outside farms suffering an outbreak of PRRS, influenza A or porcine epidemic diarrhoea --- as well as poultry sites with highly pathogenic avian influenza.
Rutger Jansen
“Our recent work demonstrated the presence of the PCV-3 genome within mild-to moderate histological lesions of aborted fetuses.
In this video Dr. Mike Murtaugh discusses vaccine cross-protection on various PCV2 strains: PCV2a, PCV2b & PCV2d. He also talks about the outbreaks of PCVAD and how correct usage of the vaccine is key.
Prof Joaquim Segalés and Dr Oliver Duran Porcine circovirus type 2 (PCV2) was initially detected in the late 1990s in North America and Europe associated with a post weaning multisystemic wasting syndrome in pigs.
Greg Stevenson
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Development of the piglet’s intestines:
Massive weight-increase during the first hours following colostrum-intake
The piglet’s intestines are still not fully matured yet
High nutrient demand for fast growing intestines
Because hypothermic pigs
require more time after birth to ingest adequate colostrum
generally ingest less colostrum
Reduced farrowing times with uterotonic, Vetrabutin
Different super script means statistically significant differences (Source: D. Mota Rojas et al., 2005)
Signs of excessive intra-uterine pressure during birth:
Slow start of breathing in newborn piglets
Ruptured, profusely bleeding umbilical cords at birth
Strangulation of the piglets by the umbilical cord
Uterine spasm, retarded birth
A typical situation: farrowing was planned for the Thursday but many sows have already farrowed by Tuesday. Weak piglets lead to low milk-release of the sow.