The effects of commercial mastitis vaccine applied at different stages of lactation on the somatic cell count in individual and bulk tank milk in primiparous and multiparous cows in turkey
<b>Aim:</b> This study was conducted to investigate the effect of a mastitis vaccine with non-labelled vaccination regimen on the milk somatic cell count (SCC) in primiparous and multiparous cows at different stages of lactation.<p> <b>Material and Methods:</b> In the s...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Selcuk University Press
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| Series: | Eurasian Journal of Veterinary Sciences |
| Subjects: | |
| Online Access: | http://eurasianjvetsci.org/pdf.php3?id=1180 |
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| Summary: | <b>Aim:</b> This study was conducted to investigate the effect of a
mastitis vaccine with non-labelled vaccination regimen on the
milk somatic cell count (SCC) in primiparous and multiparous
cows at different stages of lactation.<p>
<b>Material and Methods:</b> In the study, 97 healthy Holstein cows
were included and the cows were vaccinated on day 0 (d 0), 21
days later (d 21) and 90 days thereafter (d 111). Individual and
bulk tank milk samples were collected for SCC analysis on the
30th day prior to the 1<sup>st</sup> vaccination and on the 30<sup>th</sup> day after the
2<sup>ⁿd</sup> and 3<sup>rd</sup> vaccinations.<p>
<b>Results:</b> Bulk tank milk somatic cell counts (BTMSCC) at prevaccination,
and after the 2<sup>ⁿd</sup> and 3<sup>rd</sup> vaccinations, were 467,
246, and 371 x1000 cell/ml, respectively. It was observed that
average milk SCC was numerically decreased after the 2<sup>ⁿd</sup> and
3<sup>rd</sup> vaccinations, with respect to pre-vaccination level (p>0.05).
Unremarkable declines in individual SCC (iSCC) were observed
in the cows at early, mid or late lactation periods (p>0.05). While
the decline in iSCC was numerically in the multiparous cows,
it was found to be significant after the 2ⁿd vaccination in the primiparous
cows (p<0.01). Yet, the iSCC values obtained after the
2ⁿd and 3rd vaccinations were similar (p>0.05).<p>
<b>Conclusion:</b> Results suggested that commercial mastitis vaccine
with non-labelled vaccination regimen led to a decline in
SCC in the milk, particularly in the primiparous cows and in bulk
tank milk. |
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| ISSN: | 1309-6958 2146-1953 |