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In this study, we used electronic feeding station observations of pigs toinvestigate their growth performance and feeding behavior. These pigs wereraised in Xinda Livestock Company Ltd. in Henan, China, and followed theChinese directive for the protection of farm animals. Electronic feedingstations are often used in pig breeding and for identifying loci associatedwith feed consumption. Moreover, they can also provide much valuableinformation on pig behavior that could be directly used to improve productionefficiency. This study involves three different pig population feeding-intakedata from 383 Yorkshire, 243 Landrace and 197 Duroc breeds to investigatetheir growth performance and feeding behavior. Similar patterns of growthperformance (slow–fast–slow) were observed in the three breeds, while theDuroc have a slightly faster average growth rate throughout the whole testperiod. Study of the number of visits to the feeding station over 24 hdetected two peaks of feeding intake activity at 08:00–09:00 and14:00–15:00. During these two peakfeeding times, lower feed intake and less occupation time were observed,implicating fiercer competition at these time periods. The effective intaketime for Duroc, Landrace and Yorkshire populations was 19, 16 and 19 min,respectively, suggesting that the ultimate feed intake time for eachindividual can be set up to 20 min for each visit. Studies on the ADFI(average daily feed intake) showed a significant difference(<i>P</i> value  =  0.9) between seasons and consistent patterns for thesethree breeds. The present study provides a detailed survey on pig feed intakebehaviors across different populations and feeding seasons

A multi-population survey on swine feeding behavior with electronic feeding devices