{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T04:19:00Z","timestamp":1787026740110,"version":"build-2736575974"},"reference-count":48,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2022,4,29]],"date-time":"2022-04-29T00:00:00Z","timestamp":1651190400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Microbiol."],"abstract":"<jats:p>\n                    Carbohydrates are the main source of energy in the diet, accounting for the largest proportion in the diets of humans and monogastric animals. Although recent progress has been made in the study of intestinal carbohydrate digestion in piglets, there is a lack of comprehensive study on the dynamic changes in intestinal carbohydrate digestion with age in the early growth stage of piglets. To fill in this gap of knowledge, we collected samples of the small intestine, pancreatic tissues, and colonic digesta from 42 piglets during newborn [day (d) 0], lactation (d 7, 14), weaning (d 21), and nursery (d 28, 35, and 42) stages. Intestinal and pancreatic tissues and colonic digesta were collected at necropsy and analyzed for morphology, digestive enzyme activities, short-chain fatty acids (SCFA), and microbial abundance. Villus height reached a maximum at 1 week (d 7) in the duodenum and jejunum (\n                    <jats:italic>P<\/jats:italic>\n                    &amp;lt;0.01), and a higher ratio of villus height to crypt depth and lactase activity were observed on d 0 and 7 (\n                    <jats:italic>P<\/jats:italic>\n                    &amp;lt; 0.001) compared to other ages. However, the sucrase and maltase activities were increased with piglets' age. Similar activities of sucrase and maltase were found in the small intestine. In addition, amylase, lipase, and protease activities were assayed in the pancreas. The activity of amylase increased with age, while lipase and protease decreased gradually from birth to weaning (d 21, 28) and then increased after weaning (d 35, 42). Compared with d 0, d 42 increased the abundance of\n                    <jats:italic>Firmicutes<\/jats:italic>\n                    and\n                    <jats:italic>Bacteroidetes<\/jats:italic>\n                    with a higher concentration of total SCFA (\n                    <jats:italic>P<\/jats:italic>\n                    &amp;lt; 0.001) and decreased the abundance of\n                    <jats:italic>Proteobacteria<\/jats:italic>\n                    , but weaning (d 21, 28) increased the abundance of\n                    <jats:italic>Proteobacteria<\/jats:italic>\n                    in the colon. These results indicate that with the increase in piglet age, the carbohydrate digestive function gradually increased, but weaning hindered the development of intestinal function. These results provide us with new insights into the healthy development of piglets' intestines, which may help us to better regulate the physiological health of piglets in the future.\n                  <\/jats:p>","DOI":"10.3389\/fmicb.2022.896660","type":"journal-article","created":{"date-parts":[[2022,4,29]],"date-time":"2022-04-29T03:36:13Z","timestamp":1651203373000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":13,"title":["Developmental Profiling of Dietary Carbohydrate Digestion in Piglets"],"prefix":"10.3389","volume":"13","author":[{"given":"Xiaoqian","family":"Gao","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bing","family":"Yu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jie","family":"Yu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiangbing","family":"Mao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhiqing","family":"Huang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuheng","family":"Luo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junqiu","family":"Luo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ping","family":"Zheng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hui","family":"Yan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun","family":"He","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daiwen","family":"Chen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2022,4,29]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"690","DOI":"10.1016\/j.chom.2015.04.004","article-title":"Dynamics and stabilization of the human gut microbiome during the first year of life","volume":"17","author":"B\u00e4ckhed","year":"2015","journal-title":"Cell Host Microbe."},{"key":"B2","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1111\/j.1365-2052.2004.01229.x","article-title":"Myostatin and its implications on animal breeding: a review","volume":"36","author":"Bellinge","year":"2005","journal-title":"Anim. 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