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Integration and validation of a radi...

Destajo, Ruby Herseniada.

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Integration and validation of a radio frequency identification (RFID) system and automatic sorting technology (AST) for real-time correlation of management and disease impacts on the performance of swine in field studies.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Integration and validation of a radio frequency identification (RFID) system and automatic sorting technology (AST) for real-time correlation of management and disease impacts on the performance of swine in field studies./
Author:	Destajo, Ruby Herseniada.
Description:	64 p.
Notes:	Advisers: Locke A. Karriker; Jeffrey J. Zimmerman.
Contained By:	Masters Abstracts International45-05.
Subject:	Agriculture, Animal Culture and Nutrition. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1443058

Integration and validation of a radio frequency identification (RFID) system and automatic sorting technology (AST) for real-time correlation of management and disease impacts on the performance of swine in field studies.
Destajo, Ruby Herseniada.

Integration and validation of a radio frequency identification (RFID) system and automatic sorting technology (AST) for real-time correlation of management and disease impacts on the performance of swine in field studies. - 64 p.

Advisers: Locke A. Karriker; Jeffrey J. Zimmerman.

Thesis (M.S.)--Iowa State University, 2007.

A cohort study using RFID system with automatic sorting scales to monitor weights of swine finishers was conducted. Weight data from 2,057 barn-raised pigs were monitored to assess tag retention, frequency of scale visits, data capture, and outlier detection. Results showed tag loss rate highest around 12th and 13th week of finishing; crowded pens more likely to lose tags; and pen-averaged daily scale visits ranged from 2.45-2.74 visits. Using a system that removes outliers and inaccurate weights, weight data from 100 randomly selected swine finishers in four time-points were evaluated. Sample pigs were bled monthly for three months, tested for PRRS virus infection using ELISA and RT-PCR, and grouped based on test results. Repeated measures analysis revealed significant interaction between group and time (P=0.014). The group (2 head) with the largest mean final weight (224.38 +/- 14.79) was negative in both tests while the group (28 head) with the lowest mean final weight 207.56 +/- 4.29 was positive in either test for three time-points.Subjects--Topical Terms:

1017857
Agriculture, Animal Culture and Nutrition.

Integration and validation of a radio frequency identification (RFID) system and automatic sorting technology (AST) for real-time correlation of management and disease impacts on the performance of swine in field studies.
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100 1 $a Destajo, Ruby Herseniada. $3 1272602
245 1 0 $a Integration and validation of a radio frequency identification (RFID) system and automatic sorting technology (AST) for real-time correlation of management and disease impacts on the performance of swine in field studies.
300 $a 64 p.
500 $a Advisers: Locke A. Karriker; Jeffrey J. Zimmerman.
500 $a Source: Masters Abstracts International, Volume: 45-05, page: 2312.
502 $a Thesis (M.S.)--Iowa State University, 2007.
520 $a A cohort study using RFID system with automatic sorting scales to monitor weights of swine finishers was conducted. Weight data from 2,057 barn-raised pigs were monitored to assess tag retention, frequency of scale visits, data capture, and outlier detection. Results showed tag loss rate highest around 12th and 13th week of finishing; crowded pens more likely to lose tags; and pen-averaged daily scale visits ranged from 2.45-2.74 visits. Using a system that removes outliers and inaccurate weights, weight data from 100 randomly selected swine finishers in four time-points were evaluated. Sample pigs were bled monthly for three months, tested for PRRS virus infection using ELISA and RT-PCR, and grouped based on test results. Repeated measures analysis revealed significant interaction between group and time (P=0.014). The group (2 head) with the largest mean final weight (224.38 +/- 14.79) was negative in both tests while the group (28 head) with the lowest mean final weight 207.56 +/- 4.29 was positive in either test for three time-points.
590 $a School code: 0097.
650 4 $a Agriculture, Animal Culture and Nutrition. $3 1017857
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790 1 0 $a Zimmerman, Jeffrey J., $e advisor
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856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1443058