Relationship of estrone and prolactin with growth and survival of piglets to 35 d of age.

C. Farmer, R. S. Kensinger, Daniel R. Hagen

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    The relationship between estrogen or prolactin (Prl) status of pigs at birth and subsequent performance was examined in ten (Study 1) or seven (Study II) Yorkshire litters. In both studies, piglets were bled (3 ml) from the suborbital sinus at birth, and then hourly for 12 h. Hematocrit (Hct) and concentrations of plasma protein (PP) and estrone (E1) were determined on all samples. Concentrations of Prl were determined only in samples at birth. Weights at 3 and 5 wk of age as well as percent survival to 5 wk were obtained. Mean concentrations of E1 and Prl in piglets at birth were 6.97 +/- 44 ng/ml and 9.12 +/- .32 ng/ml, respectively. A decrease in E1 occurred over the first few hours after birth. Hematocrit values also decreased postnatally, whereas concentrations of PP increased. Sex of neonate did not affect any of the blood characteristics studied. Correlations between E1, PP, Hct and Prl at birth and body weights at birth, 3 and 5 wk were nonsignificant. However, piglets with higher Prl values at birth showed a greater survival rate. In Study II, half of the piglets in each litter were implanted at birth with silicone rubber implants containing estradiol-17 beta. Estrone concentrations were significantly higher in implanted piglets than in controls over the subsequent 12-h period, but Hct and PP values were not affected by treatment, suggesting that treated piglets did not consume more colostrum.(ABSTRACT TRUNCATED AT 250 WORDS)

    Original languageEnglish (US)
    Pages (from-to)1034-1041
    Number of pages8
    JournalJournal of Animal Science
    Volume65
    Issue number4
    DOIs
    StatePublished - Jan 1 1987

    Fingerprint

    estrone
    Estrone
    prolactin
    Prolactin
    piglets
    Parturition
    blood proteins
    hematocrit
    Growth
    Hematocrit
    Blood Proteins
    litters (young animals)
    silicone
    protein value
    Period Circadian Proteins
    Yorkshire (swine breed)
    sinuses
    colostrum
    rubber
    birth weight

    All Science Journal Classification (ASJC) codes

    • Food Science
    • Animal Science and Zoology
    • Genetics

    Cite this

    Farmer, C. ; Kensinger, R. S. ; Hagen, Daniel R. / Relationship of estrone and prolactin with growth and survival of piglets to 35 d of age. In: Journal of Animal Science. 1987 ; Vol. 65, No. 4. pp. 1034-1041.
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    Relationship of estrone and prolactin with growth and survival of piglets to 35 d of age. / Farmer, C.; Kensinger, R. S.; Hagen, Daniel R.

    In: Journal of Animal Science, Vol. 65, No. 4, 01.01.1987, p. 1034-1041.

    Research output: Contribution to journalArticle

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    N2 - The relationship between estrogen or prolactin (Prl) status of pigs at birth and subsequent performance was examined in ten (Study 1) or seven (Study II) Yorkshire litters. In both studies, piglets were bled (3 ml) from the suborbital sinus at birth, and then hourly for 12 h. Hematocrit (Hct) and concentrations of plasma protein (PP) and estrone (E1) were determined on all samples. Concentrations of Prl were determined only in samples at birth. Weights at 3 and 5 wk of age as well as percent survival to 5 wk were obtained. Mean concentrations of E1 and Prl in piglets at birth were 6.97 +/- 44 ng/ml and 9.12 +/- .32 ng/ml, respectively. A decrease in E1 occurred over the first few hours after birth. Hematocrit values also decreased postnatally, whereas concentrations of PP increased. Sex of neonate did not affect any of the blood characteristics studied. Correlations between E1, PP, Hct and Prl at birth and body weights at birth, 3 and 5 wk were nonsignificant. However, piglets with higher Prl values at birth showed a greater survival rate. In Study II, half of the piglets in each litter were implanted at birth with silicone rubber implants containing estradiol-17 beta. Estrone concentrations were significantly higher in implanted piglets than in controls over the subsequent 12-h period, but Hct and PP values were not affected by treatment, suggesting that treated piglets did not consume more colostrum.(ABSTRACT TRUNCATED AT 250 WORDS)

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