Genetic line influences pig growth rate responses to vaccination for porcine circovirus type 2

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Show simple item record Potter, M. L. Tokach, Lisa M. Dritz, Steven S. Henry, Steven C. DeRouchey, Joel M. Tokach, Michael D. Goodband, Robert D. Nelssen, Jim L. Rowland, Raymond R. R. Hesse, Richard A. Oberst, Richard D. Anderson, Joseph Hays, Michael P. 2012-04-06T20:36:58Z 2012-04-06T20:36:58Z 2012-04-06
dc.description.abstract Objectives: To compare the effects of porcine circovirus type 2 (PCV2) vaccination on growth rate, backfat depth, and loin depth of pigs in a high-health herd which contained different genetic lines. Materials and methods: A total of 454 pigs (20.6 ± 1.98 days of age; 6.1 ± 1.27 kg body weight) were used in a 130-day randomized controlled field trial. Genetic designations were A×A (Duroc line), B×B (synthetic White Pietrain line), A×B, and B×A. Pigs were randomly assigned to vaccination treatments (Vaccinated or nonvaccinated Control) within litter by gender (boar or gilt). Vaccinated pigs received two doses of a PCV2 vaccine at 3 and 5 weeks of age. Serum samples were collected and pigs were individually weighed on Days 0 (weaning), 40, and 130 to determine PCV2 viral load, antibody levels, and average daily gain (ADG). Data were analyzed from 417 pigs with complete growth records. Results: The greater ADG from Day 0 to Day 130 for Vaccinated pigs depended on the genetic line (genetic line-by-vaccination interaction; P < .05). The mean weight difference between Vaccinated and Control pigs was almost four times greater in the A×A pigs than in the B×B pigs on Day 130. On average, compared with Control pigs, Vaccinated pigs had lower serum PCV2 viral load levels on Days 40 and 130 (P < .001). Implications: Pig genetic line affects growth rate response to PCV2 vaccination and should be considered a risk factor for circoviral disease expression. 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 Genetic line en_US
dc.subject Growth en_US
dc.subject Porcine circovirus type 2 en_US
dc.subject Vaccine en_US
dc.title Genetic line influences pig growth rate responses to vaccination for porcine circovirus type 2 en_US
dc.type Article (publisher version) en_US 2012 en_US
dc.citation.epage 43 en_US
dc.citation.issue 1 en_US
dc.citation.jtitle Journal of Swine Health and Production en_US
dc.citation.spage 34 en_US
dc.citation.volume 20 en_US
dc.contributor.authoreid dritz en_US
dc.contributor.authoreid schenry 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
dc.contributor.authoreid rrowland en_US
dc.contributor.authoreid rhesse en_US
dc.contributor.authoreid oberst en_US
dc.contributor.authoreid jwa en_US
dc.contributor.authoreid mhays en_US

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