Increased survival of neonatal pigs by supplementing medium-chain triglycerides in late-gestating sow diets |
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| Affiliation: | 1. College of Animal Science, Inner Mongolia Agricultural University, Hohhot, 010018, China;2. College of Life Science, Inner Mongolia Agricultural University, Hohhot, 010018, China;3. Inner Mongolia Key Laboratory of Biomanufacturing, Hohhot, China;1. Clinic of Animal Reproduction, Faculty of Veterinary Medicine, Freie Universität Berlin, Berlin, Germany;2. Tierärztliche Praxis Am Weinberg, Jessen, Germany;1. Group Health Research Institute, Seattle, Washington;2. Kaiser Permanente Center for Health Research, Portland, Oregon;3. Kaiser Permanente Georgia Center for Health Research Southeast, Atlanta, Georgia;4. The Permanente Medical Group, Kaiser Permanente Northern California, San Francisco, California;5. Kaiser Permanente Colorado Institute for Health Research, Denver, Colorado;6. University of Colorado School of Medicine, Aurora, Colorado;1. Animal Welfare Science Centre, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Victoria, 3010, Australia;2. Tasmanian Institute of Agriculture, Faculty of Science, Engineering and Technology, University of Tasmania, Tasmania, 7320, Australia;3. Rivalea Australia, Corowa, New South Wales, 2646, Australia |
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| Abstract: | Two experiments were conducted to study the efficacy and causes of medium-chain triglycerides (MCT) in sow diet in improving the survival of neonatal pigs. In Experiment 1, beginning on d84 of gestation and continuing through d28 of lactation, 51 sows were fed corn–soybean meal diet mixed with either soybean oil (SO; n=17), coconut oil (CO; n=18), or MCT (n=16) in a proportion of 9 : 1 by weight. The highest improvement in survival of pigs by sows fed MCT (p<0.01) or CO (p<0.05) was observed during the first three days after birth in pigs weighing <1100 g at birth, compared with sows fed SO. Their three-day survival was 98.6, 80.0 and 47.6%, respectively, for MCT, CO and SO groups. In Experiment 2, beginning on d84 of gestation and continuing through farrowing, 24 sows, 8 sows per treatment, were fed diets as in Experiment 1. Liver glycogen content of pigs 4 h after born from sows fed MCT (p<0.10) and CO (p<0.01), and muscle glycogen of pigs from sows fed MCT (p<0.01) and CO (p<0.10) were increased, compared to those of pigs from sows fed SO. Plasma albumin was increased by MCT and CO (p<0.01), relative to SO. The results suggest that MCT or CO in sow diets may enhance the body glycogen stores and maturity of pigs at birth and, hence, their survival, particularly in pigs with low birth weight during the first three days of life. |
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