1469 Open Access Asian Australas. J. Anim. Sci. Vol. 27, No. 10 : 1469-1477 October 2014 http://dx.doi.org/10.5713/ajas.2014.14190
www.ajas.info pISSN 1011-2367 eISSN 1976-5517
Dietary Supplementation of Magnesium Sulfate during Late Gestation and Lactation Affects the Milk Composition and Immunoglobulin Levels in Sows W. X. Hou, S. Y. Cheng, S. T. Liu, B. M. Shi*, and A. S. Shan* Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, China ABSTRACT: This experiment was conducted to investigate the effects of dietary supplementation of magnesium sulfate (MgSO 4) during late gestation and lactation on sow and litter performance, fecal moisture, blood biochemistry parameters, immunoglobulin levels and milk composition in sows. Forty-eight sows (Yorkshire×Landrace, 4th to 5th parity) were randomly allocated to 1 of 4 dietary treatments supplemented with 0, 200, 400, or 600 mg/kg MgSO4 (n = 12). The experiment started on day 90 of gestation and continued through day 21 of lactation. Blood samples were collected on day 107 of gestation, day 0 (farrowing) and 21 (weaning) of lactation for the analyses of the blood biochemistry parameters and immunoglobulin levels. The colostrum and milk samples were obtained on day 0 and 14 of lactation, respectively. Fecal samples were collected from the sows on day 107 of gestation as well as day 7 and 20 of lactation to determine fecal moisture content. The results showed that the survival percentage of piglets and the litter weight at weaning were decreased linearly (p0.05) by MgSO 4 supplementation. The fecal moisture content of the sows were increased (p
www.ajas.info pISSN 1011-2367 eISSN 1976-5517
Dietary Supplementation of Magnesium Sulfate during Late Gestation and Lactation Affects the Milk Composition and Immunoglobulin Levels in Sows W. X. Hou, S. Y. Cheng, S. T. Liu, B. M. Shi*, and A. S. Shan* Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, China ABSTRACT: This experiment was conducted to investigate the effects of dietary supplementation of magnesium sulfate (MgSO 4) during late gestation and lactation on sow and litter performance, fecal moisture, blood biochemistry parameters, immunoglobulin levels and milk composition in sows. Forty-eight sows (Yorkshire×Landrace, 4th to 5th parity) were randomly allocated to 1 of 4 dietary treatments supplemented with 0, 200, 400, or 600 mg/kg MgSO4 (n = 12). The experiment started on day 90 of gestation and continued through day 21 of lactation. Blood samples were collected on day 107 of gestation, day 0 (farrowing) and 21 (weaning) of lactation for the analyses of the blood biochemistry parameters and immunoglobulin levels. The colostrum and milk samples were obtained on day 0 and 14 of lactation, respectively. Fecal samples were collected from the sows on day 107 of gestation as well as day 7 and 20 of lactation to determine fecal moisture content. The results showed that the survival percentage of piglets and the litter weight at weaning were decreased linearly (p0.05) by MgSO 4 supplementation. The fecal moisture content of the sows were increased (p
