Effect of Supplemental Selenium for Beef Cows on the Performance and Tissue Selenium Concentrations of Cows and Suckling Calves

Ammerman, C. B.; Chapman, H. L.; Bouwman, G. W.; Fontenot, J. P.; Bagley, C. P.; Moxon, A. L.

doi:10.2527/jas1981.5161381x

Cited by 32 publications

(16 citation statements)

References 10 publications

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“…Supplementation of cows with Se did not affect calf birth weights in either yr 1 ( x = 39.2 ± 1.4 kg) or yr 2 ( x = 39.5 ± 2.1 kg), or weight gains of calves in either yr 1 or yr 2 (Table 3). Neither Ammerman et al (1980) nor Hidiroglou et al (1987) found that Se supplementation of dams affected calf birth weights. Recently, Wichtel et al (1996) conducted two trials on Se supplementation of grazing calves ( 5 mo of age) and found a positive response in one herd but not the other.…”

Section: Resultsmentioning

confidence: 89%

Effect of level and source of dietary selenium on concentrations of thyroid hormones and immunoglobulins in beef cows and calves.

Awadeh

Kincaid

Johnson

1998

Journal of Animal Science

108

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Our objective was to determine the effect of level and chemical form of dietary selenium on productivity of beef cows, concentrations of triiodothyronine (T3), and thyroxine (T4) in plasma, and immunoglobulins (IgG and IgM) in plasma and colostrum of cows. Pregnant cows (n = 60) were randomly allocated among four dietary treatments of 20, 60, or 120 ppm Se as selenite and 60 ppm as selenomethionine from selenized yeast (SeY) in salts offered free-choice. Treatments began 90 d prepartum and continued through the second parturition. Treatments did not affect the final body weights of cows or birth weights or weaning weights of calves. At parturition, cows given salt with 20 ppm Se as selenite had lower (P < . 05) concentrations of Se in blood than cows with access to higher-Se salts. Treatments affected (P < .01) the concentration of T3 and the ratio of T3:T4 in plasma of cows. The concentration of T3 in plasma of cows with access to salt with 20 ppm Se was 14% lower than that in cows supplemented with 60 ppm Se as selenite or SeY. Plasma IgG in cows and calves, colostrum, and Se concentrations in colostrum, casein, and whey were lowest (P < .01) for cows given salt with only 20 ppm Se. Thus, salts with concentrations of 60 and 120 ppm Se improved measures of Se status in cows and calves. Consideration should be given to the concentrations of T3 and IgG when determining the nutritional requirements for Se in cattle.

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Section: Resultsmentioning

confidence: 89%

Effect of level and source of dietary selenium on concentrations of thyroid hormones and immunoglobulins in beef cows and calves.

Awadeh

Kincaid

Johnson

1998

Journal of Animal Science

108

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“…Like blood and tissue, Se concentration of milk is affected by dietary Se levels [13]. Dietary Se supplementation of pregnant beef cows markedly increased concentrations of Se in colostrum and milk [2]. Colostrum Se concentrations were affected by Se supplementation of the ewe's diet and increased linearly as dietary Se increased [10].…”

Section: Discussionmentioning

confidence: 98%

Effect of Prepartum Supplementation of Selenium and Vitamin E on Serum Se, IgG Concentrations and Colostrum of Heifers and on Hematology, Passive Immunity and Se Status of Their Offspring

Moeini

Kiani

Mikaeili

et al. 2011

Biol Trace Elem Res

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Forty heifers at the late stage of gestation were randomly assigned into five groups. Heifers were balanced for age, weight, and time of calving in each group. Four and 2 weeks before expected time of calving, the heifers were injected with 0 ml (C), 10 ml (T1), 20 ml (T2), 30 ml (T3), and 40 ml (T4) Se and VE supplements, respectively. Each milliliter of the supplement contained of 0.5 mg Se as sodium selenite and 50 IU of dl-alpha-tocopheryl acetate. Blood samples were collected from the heifers 4 weeks before expected calving and at calving day and from the calves at birth and 7 days of age. The serum Se and immunoglobulin G (IgG) concentrations, white blood cell and differential leukocyte counts were measured. The Se concentrations in the sera of the heifers before the injections of Se and VE supplements were the same among the groups (P > 0.05), but after calving were significantly increased in the treated heifers (P < 0.05). Similarly, the serum Se levels of calves of the treated heifers were higher (P < 0.05). The Se concentrations in the colostrums of the heifers were affected by treatments (P < 0.05). Colostrum and daily milk productions at 8-week lactation were increased in treated heifers compared with the controls (P < 0.05). Likewise, the milk somatic cell counts decreased in the treated heifers compared with the controls. The changes of the mean serum IgG levels did not differ among calves (P > 0.05). The white blood cell counts were higher in calves of heifers in groups T3 and T4 compared with the control group at 7 days of age (P < 0.05).

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“…Various concentrations of Se in milk from cows receiving supplemental Se have been reported. Ammerman et al (1980) ob-served for beef cows values decreasing from approximately .015 mg/L 2 wk after calving to .010 8 wk after calving, and Maus et al (1980) reported values between .029 and .064 mg/L in midlactation dairy cows. Comparable values (.04 to .06 mg/L) have been reported in colostrum (Abdelrahman and Kincaid, 1995).…”

Section: Selenium Status Of Calves Placental Transfer Of Sementioning

confidence: 95%

Effects of pre- or postpartum selenium supplementation on selenium status in beef cows and their calves.

Enjalbert

Lebreton²,

Salat

et al. 1999

Journal of Animal Science

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The effect of Se supplementation before or after calving on Se status in deficient cows and their calves was studied using 72 beef cows in two experiments. In Exp. 1, cows calving in February or March 1997 were supplemented orally for 15 d in late pregnancy with 13.0, 32.5, or 45.5 mg of Se/d as sodium selenite. Glutathione peroxidase (GSH-Px) activities were measured in red blood cells (RBC) or plasma of cows and calves at d 15 and between d 17 and 88 after calving. In Exp. 2, cows calving in January 1997 were supplemented orally with .0, 13.0, or 32.5 mg of Se/d for 15 d postpartum, and calves were injected with 1.38 mg of Se when 2 d old and at an average age of 49 d. The GSH-Px activities were measured in 30-d-old calves and in cows and calves between d 77 and 115 after calving. In both experiments, Se supplementation resulted in adequate Se status for the dams. The increase in RBC GSH-Px activity was faster with 45.5 mg of Se/d, and GSH-Px activities remained high for up to 98 d after the end of supplementation. The improvement in Se status in calves as a result of maternal supplementation was greater in Exp. 1 than in Exp. 2, suggesting that the placental transfer of Se is more efficient than milk transfer. Prepartum oral Se supplementation of deficient beef cows with 13.0 mg of Se/d for 15 d allowed adequate Se status of dams and calves, and 45.5 mg of Se/d resulted in a faster improvement of Se status. Parenteral administration of 1.38 mg of Se to newborn calves did not sustain normal Se status in calves issued from deficient cows.

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Effect of Supplemental Selenium for Beef Cows on the Performance and Tissue Selenium Concentrations of Cows and Suckling Calves

Cited by 32 publications

References 10 publications

Effect of level and source of dietary selenium on concentrations of thyroid hormones and immunoglobulins in beef cows and calves.

Effect of level and source of dietary selenium on concentrations of thyroid hormones and immunoglobulins in beef cows and calves.

Effect of Prepartum Supplementation of Selenium and Vitamin E on Serum Se, IgG Concentrations and Colostrum of Heifers and on Hematology, Passive Immunity and Se Status of Their Offspring

Effects of pre- or postpartum selenium supplementation on selenium status in beef cows and their calves.

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