A higher expression of SCN8A during ante- as well as early postnatal stages of development might indicate an important role of SCN8A ensuring proper action potential propagation throughout atrial cardiomyocytes during early development and a shift to other VGSC at later developmental stages and during adulthood.
Among the condemned cattle, 4% presented a clinical sign during ante-mortem inspection.
Clinical signs observed during ante-mortem inspection were used as binary variables: presence/absence.
The most opportune time to begin discussion with parents is probably during ante-natal clinics or sometime before delivery.
This analysis showed that presence of clinical signs during ante-mortem inspection characterized clusters 5, 11 and 15.
In these areas routine immunization coverage of pregnant woman during ante-natal care visits was less than 80%.
In this cluster, 21% of cattle had presented at least one symptom during ante-mortem inspection whereas only 4% of the whole population of the study had one (Table 5).
Additionally, 30% of cattle in this cluster had presented at least one symptom during ante-mortem inspection whereas this was the case for only 4% of the whole population present in the study.
For each animal, the database contained: identification number, date of birth and slaughter, last farm location, sex, breed, signs observed during ante-mortem inspection, reasons for condemnation and locations or absence of condemnation.
Six supplementary variables were used: year of slaughter, month of slaughter, farm location, presence or absence of clinical signs during ante-mortem inspection, abattoir identification number, reasons for condemnation and portions with frequencies lower than 1%.
