{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T19:15:37Z","timestamp":1792523737497,"version":"4.5.0"},"reference-count":40,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2025,1,27]],"date-time":"2025-01-27T00:00:00Z","timestamp":1737936000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"earmarked fund for CARS (CARS-35)","award":["CARS-35"],"award-info":[{"award-number":["CARS-35"]}]},{"name":"earmarked fund for CARS (CARS-35)","award":["2022ZD003"],"award-info":[{"award-number":["2022ZD003"]}]},{"name":"Key Projects of Maoming Laboratory","award":["CARS-35"],"award-info":[{"award-number":["CARS-35"]}]},{"name":"Key Projects of Maoming Laboratory","award":["2022ZD003"],"award-info":[{"award-number":["2022ZD003"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Animals"],"abstract":"<jats:p>Transport stress prior to slaughter frequently induces a stress response, negatively affecting meat quality. This study investigated the impact of dietary potassium magnesium sulphate (PMS) supplementation during the fattening stage on the stress response and meat quality in finishing pigs subjected to transport stress. The experiment involved two phases. Initially, 48 finishing pigs (68.00 \u00b1 0.40 kg) were randomly allocated into two groups: a control group receiving a basal diet (CON) and a PMS-supplemented group receiving the basal diet with 0.50% PMS. Each group was housed in six pens, with four pigs per pen. After 60 days of feeding, in the second phase, two pigs from each pen were randomly selected for slaughter, with one pig subjected to a 4 h transportation stress prior to slaughter. Pigs were categorized into four treatment groups based on diet and stress: (1) control without transport stress, (2) control with transport stress, (3) PMS-supplemented without transport stress, and (4) PMS-supplemented with transport stress. Serum, jejunum, and longissimus thoracis muscle (LM) samples were collected. The results indicated that dietary PMS supplementation did not significantly affect growth performance during the fattening stage (p &gt; 0.05). However, following transport, the PMS pigs showed a reduction in norepinephrine and cortisol concentrations (p = 0.09, p &lt; 0.05) and a significant increase in serum glutathione peroxidase (GSH-Px) activity (p &lt; 0.05). Furthermore, PMS supplementation significantly increased serum catalase (CAT), total antioxidant capacity (T-AOC), alkaline phosphatase (AKP) activity, and high-density lipoprotein cholesterol (HDL-C) levels (p &lt; 0.05), while significantly reducing cholesterol (CHO) levels (p &lt; 0.05). Transport stress adversely affected the intestinal health of finishing pigs, as evidenced by a decrease in intestinal villus height (0.05 &lt; p &lt; 0.1), a condition ameliorated by PMS supplementation. Additionally, transported pigs exhibited a higher drip loss24h in LM (p &lt; 0.05), which was also alleviated through PMS supplementation. In conclusion, PMS supplementation mitigates transport stress and improves meat quality in finishing pigs.<\/jats:p>","DOI":"10.3390\/ani15030362","type":"journal-article","created":{"date-parts":[[2025,1,27]],"date-time":"2025-01-27T07:46:29Z","timestamp":1737963989000},"page":"362","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Preliminary Research on Dietary Supplementation of Potassium Magnesium Sulphate on Transport Stress in Finishing Pigs Prior to Slaughter"],"prefix":"10.3390","volume":"15","author":[{"given":"Bailei","family":"Cui","sequence":"first","affiliation":[{"name":"State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Lingnan Modern Agricultural Science and Technology Guangdong Provincial Laboratory Maoming Branch, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China"},{"name":"College of Animal Science and Technology, Guangxi University, Nanning 530004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yunxia","family":"Xiong","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Lingnan Modern Agricultural Science and Technology Guangdong Provincial Laboratory Maoming Branch, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1595-7468","authenticated-orcid":false,"given":"Xiaolu","family":"Wen","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Lingnan Modern Agricultural Science and Technology Guangdong Provincial Laboratory Maoming Branch, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shengnan","family":"Wu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Lingnan Modern Agricultural Science and Technology Guangdong Provincial Laboratory Maoming Branch, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yi","family":"Huang","sequence":"additional","affiliation":[{"name":"College of Animal Science and Technology, Guangxi University, Nanning 530004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8535-3443","authenticated-orcid":false,"given":"Hao","family":"Xiao","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Lingnan Modern Agricultural Science and Technology Guangdong Provincial Laboratory Maoming Branch, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuting","family":"Cao","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Lingnan Modern Agricultural Science and Technology Guangdong Provincial Laboratory Maoming Branch, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zongyong","family":"Jiang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Lingnan Modern Agricultural Science and Technology Guangdong Provincial Laboratory Maoming Branch, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Li","family":"Wang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Lingnan Modern Agricultural Science and Technology Guangdong Provincial Laboratory Maoming Branch, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shenglan","family":"Hu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Lingnan Modern Agricultural Science and Technology Guangdong Provincial Laboratory Maoming Branch, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,1,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"43","DOI":"10.4141\/cjas2012-088","article-title":"Welfare and carcass and meat quality of pigs being transported for two hours using two vehicle types during two seasons of the year","volume":"93","author":"Correa","year":"2013","journal-title":"Can. 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