PMID- 23735427
OWN - NLM
STAT- MEDLINE
DCOM- 20140307
LR  - 20130715
IS  - 1873-1716 (Electronic)
IS  - 0167-5877 (Linking)
VI  - 111
IP  - 3-4
DP  - 2013 Sep 1
TI  - Financial implications of installing air filtration systems to prevent PRRSV 
      infection in large sow herds.
PG  - 268-77
LID - S0167-5877(13)00163-3 [pii]
LID - 10.1016/j.prevetmed.2013.05.001 [doi]
AB  - Air filtration systems implemented in large sow herds have been demonstrated to 
      decrease the probability of having a porcine reproductive and respiratory 
      syndrome virus (PRRSV) outbreak. However, implementation of air filtration 
      represents a considerable capital investment, and does not eliminate the risk of 
      new virus introductions. The specific objectives of the study were: 1) to 
      determine productivity differences between a cohort of filtered and non-filtered 
      sow farms; and 2) to employ those productivity differences to model the 
      profitability of filtration system investments in a hypothetical 3000 sow farm. 
      Variables included in the study were production variables (quarterly) from 
      respective herds; air filtration status; number of pig sites within 4.7 km of the 
      farm; occurrence of a PRRSV outbreak in a quarter, and season. For the investment 
      analyses, three Scenarios were compared in a deterministic spreadsheet model of 
      weaned pig cost: (1) control, (2) filtered conventional attic, and (3) filtered 
      tunnel ventilation. Model outputs indicated that a filtered farm produced 5927 
      more pigs than unfiltered farms. The payback periods for the investments, were 
      estimated to be 5.35 years for Scenario 2 and 7.13 years for Scenario 3 based 
      solely on sow herd productivity. Payback period sensitivity analyses were 
      performed for both biological and financial inputs. The payback period was most 
      influenced by the premium for weaned pig sales price for PRRSV-negative pigs, and 
      the relative proportions of time that filtered vs. unfiltered farms produced 
      PRRSV-negative pigs. A premium of $5 per pig for PRRS-negative weaned pigs 
      reduced the estimated payback periods to 2.1 years for Scenario 2 and 2.8 years 
      for Scenario 3.
CI  - Copyright (c) 2013 Elsevier B.V. All rights reserved.
FAU - Alonso, Carmen
AU  - Alonso C
AD  - Department of Veterinary Population Medicine, College of Veterinary Medicine, 
      University of Minnesota, Saint Paul, MN, United States.
FAU - Davies, Peter R
AU  - Davies PR
FAU - Polson, Dale D
AU  - Polson DD
FAU - Dee, Scott A
AU  - Dee SA
FAU - Lazarus, William F
AU  - Lazarus WF
LA  - eng
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20130602
PL  - Netherlands
TA  - Prev Vet Med
JT  - Preventive veterinary medicine
JID - 8217463
SB  - IM
MH  - Air Filters/*economics/veterinary
MH  - Animals
MH  - Disease Outbreaks/*veterinary
MH  - Female
MH  - Iowa
MH  - Minnesota
MH  - Porcine Reproductive and Respiratory Syndrome/*economics/*prevention & control
MH  - Porcine respiratory and reproductive syndrome virus/*physiology
MH  - Swine
OTO - NOTNLM
OT  - Air filtration
OT  - Investment
OT  - PRRS
OT  - Payback
OT  - Virus
EDAT- 2013/06/06 06:00
MHDA- 2014/03/08 06:00
CRDT- 2013/06/06 06:00
PHST- 2012/09/09 00:00 [received]
PHST- 2013/04/29 00:00 [revised]
PHST- 2013/05/02 00:00 [accepted]
PHST- 2013/06/06 06:00 [entrez]
PHST- 2013/06/06 06:00 [pubmed]
PHST- 2014/03/08 06:00 [medline]
AID - S0167-5877(13)00163-3 [pii]
AID - 10.1016/j.prevetmed.2013.05.001 [doi]
PST - ppublish
SO  - Prev Vet Med. 2013 Sep 1;111(3-4):268-77. doi: 10.1016/j.prevetmed.2013.05.001. 
      Epub 2013 Jun 2.