dc.contributor.author |
Jacela, Jay Y. |
|
dc.contributor.author |
Dritz, Steven S. |
|
dc.contributor.author |
DeRouchey, Joel M. |
|
dc.contributor.author |
Tokach, Michael D. |
|
dc.contributor.author |
Goodband, Robert D. |
|
dc.contributor.author |
Nelssen, Jim L. |
|
dc.date.accessioned |
2012-04-06T20:37:39Z |
|
dc.date.available |
2012-04-06T20:37:39Z |
|
dc.date.issued |
2012-04-06 |
|
dc.identifier.uri |
http://hdl.handle.net/2097/13591 |
|
dc.description.abstract |
Objective: To evaluate porcine circovirus type 2 (PCV2) vaccine influence on growth performance
and mortality rate of finishing pigs.
Materials and methods: The study treatments
(vaccinated for PCV2 or nonvaccinated
control and barrow or gilt) were arranged as a 2 × 2 factorial. Pigs (PIC L337 × 1050) were randomly assigned to Vaccinated
or Control treatments within gender. In Experiment One, pigs were vaccinated at 9 and 11 weeks of age, and in Experiment Two, pigs were vaccinated at 5 and 7 weeks of age. Performance data were then collected during the finisher on-test period beginning when pigs were 11 weeks of age. Pig weights and feed intake were recorded on a pen basis.
Results: In Experiment One, average daily gain (ADG), average daily feed intake, gain-to-feed ratio, and mortality were better
(P < .05) in Vaccinated pigs than in Controls. In Experiment Two, there were vaccine-by-gender interactions for ADG (P < .01) and final weight (P < .05), as ADG was greater in Vaccinated barrows than in Vaccinated gilts (P < .01). Overall, greater ADG resulted in Vaccinated pigs being 2.9 kg heavier (P < .01) than Controls at market. Mortality rates of Vaccinated pigs were lower (P < .05) than those of Controls (2.8 percentage units in Experiments One and 6.2 percentage units in Experiment Two).
Implications: The superior growth performance
and lower mortality after vaccination confirmed the efficacy of the commercial PCV2 vaccine used in this study. |
en_US |
dc.rights |
Permission to archive granted by the Publications Manager of the American Association of Swine Veterinarians, April 14, 2011. |
en_US |
dc.subject |
Swine |
en_US |
dc.subject |
Growth |
en_US |
dc.subject |
Porcine circovirus type 2 |
en_US |
dc.subject |
Vaccine |
en_US |
dc.title |
Field evaluation of the effects of a porcine circovirus type 2 vaccine on finishing pig growth performance, carcass characteristics, and mortality rate in a herd with a history
of porcine circovirus-associated disease |
en_US |
dc.type |
Article (publisher version) |
en_US |
dc.date.published |
2011 |
en_US |
dc.citation.epage |
18 |
en_US |
dc.citation.issue |
1 |
en_US |
dc.citation.jtitle |
Journal of Swine Health and Production |
en_US |
dc.citation.spage |
10 |
en_US |
dc.citation.volume |
19 |
en_US |
dc.contributor.authoreid |
dritz |
en_US |
dc.contributor.authoreid |
jderouch |
en_US |
dc.contributor.authoreid |
mtokach |
en_US |
dc.contributor.authoreid |
goodband |
en_US |
dc.contributor.authoreid |
jnelssen |
en_US |