Abstract
Linear enamel hypoplasia (LEH) produces abnormal incremental lines or depressions in teeth enamel caused by a deficiency in the growth of calcified tissue. The depth and width of the LEH events can indicate the severity and duration of a stressful life event. LEH can be used to investigate developmental stress, as it will occur when the individual is unable to cope with environmental stressors during development, such as food shortage, pathological challenge or other stressful events. The LEH technique has been used by zoo-archaeologists to obtain information on early domestication and husbandry practices in ancient populations of pigs, where high levels of LEH have been found to correspond to birth and weaning. The objective of this work was to investigate if LEH was present in modern pigs and whether it could be used as a welfare indicator.
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