The Veterinary Record Link to Vetlife website
HOME CURRENT ISSUE TABLE OF CONTENTS ARCHIVE SEARCH SUBSCRIPTIONS JOBS FEEDBACK HELP
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow Request Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Dee, S. A.
Right arrow Articles by Poison, D. D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Dee, S. A.
Right arrow Articles by Poison, D. D.

The Veterinary Record, Vol 140, Issue 10, 247-248
Copyright © 1997 by British Veterinary Association

Evaluation of the effects of nursery depopulation on the persistence of porcine reproductive and respiratory syndrome virus and the productivity of 34 farms

S. A. Dee DVM, PhD, DiplACVM1, H. S. Joo DVM, PhD1, B. K. Park DVM, MS1, C. Pijoan DVM, PhD1, T. W. Molitor PhD1, J. E. Collins DVM, PhD1, V. King PhD1, and D. D. Poison DVM, MS2

1 College of Veterinary Medicine, University of Minnesota, St Paul, MN 55108, USA
2 Nobl Laboratories, Sioux Center, IA 51250, USA Dr Dee's present address is 621 Pacific Avenue, Morris, MN 56267, USA

Nursery depopulation has been described as an effective strategy for improving the performance of weaned pigs. In order to assess whether the strategy was effective under a wide range of conditions, a study was carried out on 34 farms in the USA. Four groups with different depopulation protocols were designed on the basis of the location of the depopulated facility (on site vs off site) and the period for which the nursery remained empty (seven days vs 14 days). The changes in average daily liveweight gain, percentage mortality, feed efficiency and treatment cost per pig produced were assessed 12 months before and after nursery depopulation. The ability to eliminate porcine reproductive and respiratory syndrome (PRRs) virus was examined by indirect fluorescent antibody testing of the nursery pigs. Significant improvements (P<0·0001) were detected in both average daily gain and percentage mortality after depopulation when the differences within an individual group were analysed, but no significant differences (P>0·14) were observed between the study groups. Serological testing indicated that antibodies to PRRS virus were still present in 14 of the 34 farms after depopulation.




This article has been cited by other articles:


Home page
 Vet Rec.Home page
J. S. Yang, H. J. Moon, C. S. Lee, S. J. Park, D. S. Song, B. K. Kang, J. U. Choi, and B. K. Park
Elimination of porcine reproductive and respiratory syndrome virus from a seedstock breeding farm and a supplying boar stud by a modified test and removal method
Vet Rec., March 15, 2008; 162(11): 333 - 337.
[Abstract] [Full Text] [PDF]

Home page
 J. Clin. Microbiol.Home page
P. Halbur, R. Thanawongnuwech, G. Brown, J. Kinyon, J. Roth, E. Thacker, and B. Thacker
Efficacy of Antimicrobial Treatments and Vaccination Regimens for Control of Porcine Reproductive and Respiratory Syndrome Virus and Streptococcus suis Coinfection of Nursery Pigs
J. Clin. Microbiol., March 1, 2000; 38(3): 1156 - 1160.
[Abstract] [Full Text]


HOME CURRENT ISSUE TABLE OF CONTENTS ARCHIVE SEARCH SUBSCRIPTIONS JOBS FEEDBACK HELP
Copyright © 1997 British Veterinary Association