Selenium and Vitamin E Supplementation of High Moisture Corn Diets for Swine Reproduction

Young, L. G.; Miller, R. B.; Edmeades, D. E.; Lun, Andreas; Smith, Guinevere C.; King, G. J.

doi:10.2527/jas1977.4551051x

Cited by 32 publications

(7 citation statements)

References 13 publications

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“…The serum vitamin E concentrations are comparable with those previously reported for growing pigs (Young et al, 1977;Loudenslager et al, 1983). The serum vitamin E data emphasize the importance of sow's milk in maintaining adequate serum vitamin E levels.…”

Section: Discussionsupporting

confidence: 91%

Genetic Predisposition of Pigs to Hypo- and Hyperselenemia

Stowe

Miller

1985

Journal of Animal Science

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A continuing, sporadic incidence of vitamin E-selenium (Se) responsive disease among confinement-reared pigs believed to be fed complete and adequately supplemented diets prompted these studies on the potential genetic influence over vitamin E and Se metabolism in pigs. The initial study revealed a wide range of serum Se and vitamin E concentrations among age-matched, commonly housed and commonly fed growing pigs. Pigs found relatively hyposelenemic (hypo-Se) or hyperselenemic (hyper-Se) early in life retained their relative Se status while commonly reared. The persistence of vitamin E status was poor. Selected matings between identified, relatively hypo-Se gilts and boars and between relatively hyper-Se gilts and boars produced similarly affected baby pigs. In Exp. 2, representative hypo-Se (20) and hyper-Se (20) pigs were identified from a total of 107 baby pigs by 30 d of age. These pigs were allotted to an experiment to compare the responses of these two populations to .1 and .3 ppm supplemental dietary Se through 150 d of age. The difference in mean serum Se of the selected hypo- and hyper-Se pigs fed .1 ppm Se was significant at each sampling time. This difference approximated that observed between pigs (either hypo- or hyperselenemic) fed .1 and .3 ppm Se. The increase in serum Se due to .3 ppm supplemental dietary Se was greater among the selected hypo-Se pigs than among the hyper-Se pigs. Plasma Se-dependent glutathione peroxidase (GSH-Px) was a better indicator of dietary or serum Se status than was erythrocyte GSH-Px. The selected hyper-Se pigs maintained a more rapid rate of growth than did the hypo-Se pigs and were approximately 10 kg heavier at 150 d than the hypo-Se pigs.

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Section: Discussionsupporting

confidence: 91%

Genetic Predisposition of Pigs to Hypo- and Hyperselenemia

Stowe

Miller

1985

Journal of Animal Science

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“…Plasma tocopherol concentrations were very low at birth and in many samples were not detectable, possibly indicating inefficient placental transfer (table 4). Studies with pigs (Young et al, 1977), rat (Pazak, 1983) and humans (Martinez et al, 1981) also found low circulating levels of tocopherol in the neonate. Maim et al (1976), however, has reported 2.2-to 19.3-fold higher serum E levels in neonatal pigs than the E levels in their dams.…”

Section: ' Results and Discussionmentioning

confidence: 97%

Importance of Diet of Dam and Colostrum to the Biological Antioxidant Status and Parenteral Iron Tolerance of the Pig

Loudenslager

Whetter

et al. 1986

Journal of Animal Science

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Fifteen second-parity sows were used to determine the importance of vitamin E (E) and selenium (Se) supplementation of the sow's diet and colostrum consumption by the neonatal pig on tolerance to parenteral iron. Selenium (.1 ppm) and E (50 IU/kg) supplementation of the diet of the sow increased plasma tocopherol and Se concentrations, but did not increase plasma glutathione peroxidase (GSH-Px) activity. Colostrum had greater concentrations of E (primarily alpha-tocopherol) and Se than milk. Plasma biological antioxidant status (tocopherol level and GSH-Px activity) of pigs at birth was very low, but by 2 d of age had increased, especially in alpha-tocopherol (nearly a 20-fold increase). Liveability and body weight gain of pigs were not affected by the pre-colostrum iron injection (200 mg Fe as gleptoferron); however, plasma tocopherol concentrations of Fe-injected pigs were lower and plasma Se concentration and GSH-Px activities were higher at 2 d of age than values of pigs not receiving parenteral Fe. Supplementation of the dam's diet with E and Se maintained high tocopherol and Se levels in her colostrum and milk and a high biological antioxidant status in her pigs throughout the nursing period.

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“…It has been reported that the concentration of serum α-tocopherol in unsuckled newborn piglets is several fold higher than that of their dams, strongly suggesting an efficient placental transfer of vitamin E even when the dams are not supplemented with the vitamin [57]. However, most reports have suggested that, prior to nursing, the α-tocopherol concentration in the serum of neonatal piglets is low whether or not the dam is provided with adequate or supplemented dietary levels of vitamin E during gestation [30,[61][62][63][64]. The low plasma and tissue levels of α-tocopherol in new-born pigs suggests a low rate of vitamin E transfer across the placenta which is not influenced by the dietary supplementation of the sow during pregnancy.…”

Section: Placental Transfer Of Vitamin Ementioning

confidence: 99%

Vitamin E in immunity and reproductive performance in pigs

Pinelli‐Saavedra

2003

Reprod. Nutr. Dev.

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-This review is focused on studies of vitamin E in immunity and reproductive performance in pigs. There are reports that vitamin E can have a positive effect on some parameters of the immune system in pigs. The optimal level of vitamin E needed to improve the immune system has not been determined because of several factors such as the composition of the diet, feed consumption, the rate of animal growth and living conditions or stress. Moreover, the way of action of vitamin E in enhancing immunity is still unclear but according to reports it may have antioxidant properties as well as an immunomodulator effect. In several studies, an increase in litter size and a reduction of preweaning piglet mortality have resulted from increasing dietary vitamin E intake during gestation or by intramuscular injection of vitamin E and/or selenium. However, according to reports, the positive effect of vitamin E on reproductive performance remains unclear due to the low number of animals used in most experiments.vitamin E / pig / immunity / reproductive performance / placental transfer

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Selenium and Vitamin E Supplementation of High Moisture Corn Diets for Swine Reproduction

Cited by 32 publications

References 13 publications

Genetic Predisposition of Pigs to Hypo- and Hyperselenemia

Genetic Predisposition of Pigs to Hypo- and Hyperselenemia

Importance of Diet of Dam and Colostrum to the Biological Antioxidant Status and Parenteral Iron Tolerance of the Pig

Vitamin E in immunity and reproductive performance in pigs

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