2009
DOI: 10.1016/j.compag.2009.07.012
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An intelligent control chart for monitoring of autocorrelated egg production process data based on a synergistic control strategy

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Cited by 26 publications
(46 citation statements)
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“…To monitor the course of the TCV and detect aberrations as a result of such phenomena, the algorithm presented by Mertens (2009) and Mertens et al (2008Mertens et al ( , 2009) was used to construct a control chart for the course of the TCV. This algorithm develops a curve based on the actual in-control observations of TCV on a certain time in the production period.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…To monitor the course of the TCV and detect aberrations as a result of such phenomena, the algorithm presented by Mertens (2009) and Mertens et al (2008Mertens et al ( , 2009) was used to construct a control chart for the course of the TCV. This algorithm develops a curve based on the actual in-control observations of TCV on a certain time in the production period.…”
Section: Discussionmentioning
confidence: 99%
“…This group of laying hens was followed daily during in total 360 d of lay. The first day of lay (DOL) is considered to be the time point at which the hen-day egg production reaches more than 40% (Mertens, 2009;Mertens et al, 2009). each day, all of the eggs were collected, percentage of second-grade eggs (broken, cracked, and dirty eggs) was defined by visual inspection, and all eggs were weighed collectively to define the average egg weight.…”
Section: Methodsmentioning
confidence: 99%
“…Compared to these results, the model proposed in this paper obtained an SEN of 0.8639 and an SPC of 0.9954 along with an ACC of 0.9925 and a PPV of 0.8125 for the day prior to the anomaly. Mertens et al (2009) also proposed the development of a system based on an intelligent control chart for monitoring the egg production process. This system provided alarms for problems in the production curve for the same day that production dropped.…”
Section: Performance Analysismentioning
confidence: 99%
“…Data analysis in poultry systems has mainly been performed using mathematical methods (Frost et al 1997), statistical techniques (Narinc et al 2014) and visual graph analyses (Mertens et al 2009). These methods allow for the identification of anomalies in production by pointing out important differences among the production indices (De Vries and Reneau 2010).…”
Section: Introductionmentioning
confidence: 99%
“…This scheme detects the two-sided mean shift δ μ and increasing standard deviation shift δ σ based on a single statistic WL (the weighted loss function). Mertens et al [9] monitored the livestock production processes by means of statistical control charts. The non-stationary and autocorrelated characteristics of most data originating from such processes impeded the direct introduction of these data into control charts.…”
Section: Litreture Reviewmentioning
confidence: 99%