{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T21:23:55Z","timestamp":1786569835169,"version":"build-2736575974"},"reference-count":39,"publisher":"CSIRO Publishing","issue":"2","license":[{"start":{"date-parts":[[2025,5,27]],"date-time":"2025-05-27T00:00:00Z","timestamp":1748304000000},"content-version":"vor","delay-in-days":4759,"URL":"https:\/\/doi.org\/10.1071\/journalslicense"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2013,1,29]]},"abstract":"<jats:p>The present study investigated the occurrence of intra-uterine growth retardation (IUGR) in newborn (n = 40) and 150-day-old (n = 240) pigs of different birthweight ranges (high, HW: 1.8\u20132.2 kg; low, LW: 0.8\u20131.2 kg) from higher-parity commercial sows and its impact on their subsequent development and carcass traits in a Brazilian commercial production system. HW newborn pigs had heavier organs than LW pigs (P &amp;lt; 0.01), and all brain : organ weight ratios were higher (P &amp;lt; 0.01) in LW compared with HW offspring, providing strong evidence of IUGR in the LW piglets. HW pigs had higher bodyweights and average daily gain (ADG) in all phases of production (P &amp;lt; 0.05), but ADG in the finisher phase was similar in both groups. Additionally, LW newborn and 150-day-old pigs showed a lower percentage of muscle fibres and a higher percentage of connective tissue in the semitendinosus muscle, greater fibre number per mm2 and a lower height of the duodenal mucosa (P &amp;lt; 0.05). On the other hand, HW pigs had higher hot carcass weight, meat content in the carcass and yield of ham, shoulder and belly (P &amp;lt; 0.01). Hence, lower-birthweight piglets may suffer from IUGR, which impairs their growth performance, muscle accretion, duodenal mucosa morphology and carcass traits.<\/jats:p>","DOI":"10.1071\/rd12021","type":"journal-article","created":{"date-parts":[[2012,9,20]],"date-time":"2012-09-20T21:37:02Z","timestamp":1348177022000},"page":"387-395","source":"Crossref","is-referenced-by-count":101,"title":["Intra-uterine growth retardation affects birthweight and postnatal development in pigs, impairing muscle accretion, duodenal mucosa morphology and carcass traits"],"prefix":"10.1071","volume":"25","author":[{"given":"A. L. 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