Modulatory effects of dietary β-carotene on blood and mammary leukocyte function in periparturient dairy cows
Beginning 4 wk prior to predicted calving, 14 Holstein cows per treatment were fed diets 1) unsupplemented (control) or supplemented daily with 2) 300 mg of beta-carotene, 3) 600 mg of beta-carotene, or 4) 120,000 IU of vitamin A. Blood was collected around calving on wk -4, -2, -1, 0 (within 24 h p...
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Veröffentlicht in: | Journal of dairy science 1994-05, Vol.77 (5), p.1408-1421 |
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creator | MICHAL, J. J HEIRMAN, L. R WONG, T. S CHEW, B. P FRIGG, M VOLKER, L |
description | Beginning 4 wk prior to predicted calving, 14 Holstein cows per treatment were fed diets 1) unsupplemented (control) or supplemented daily with 2) 300 mg of beta-carotene, 3) 600 mg of beta-carotene, or 4) 120,000 IU of vitamin A. Blood was collected around calving on wk -4, -2, -1, 0 (within 24 h postcalving), 1, 2, and 4 for isolation of lymphocytes and neutrophils and for the analysis of plasma vitamins. Lacteal secretions were collected on wk 0, 1, 2, and 4 for the isolation of phagocytes. Cows supplemented with 600 mg of beta-carotene had higher concentrations of plasma beta-carotene and retinol than did unsupplemented cows. Supplemental vitamin A increased plasma retinol on wk 4 and decreased plasma beta-carotene on wk -1 and 0. Treatment did not affect concentrations of plasma alpha-tocopherol. Blood lymphocyte proliferation in response to concanavalin A, phytohemagglutinin, and pokeweed mitogen during the peripartum period was higher in cows supplemented with beta-carotene than in unsupplemented controls. Phagocytic activity of blood neutrophils was enhanced on wk 1 in cows fed 300 mg of beta-carotene. Intracellular killing by blood neutrophils was enhanced in cows supplemented with beta-carotene (wk 0) and vitamin A (wk 0 and 1). Iodine uptake and nitroblue tetrazolium reduction by blood neutrophils was stimulated in cows supplemented with beta-carotene. Phagocytic activity, iodine uptake, and nitroblue tetrazolium reduction by mammary phagocytes from all cows generally were lower postpartum than on the day of calving. The incidence of retained placenta and metritis was higher for unsupplemented cows than for cows supplemented with beta-carotene. Therefore, dietary beta-carotene can elevate peripartum concentrations of blood beta-carotene, enhance host defense mechanisms by potentiating lymphocyte and phagocyte function, and decrease the incidence of certain reproductive disorders. |
doi_str_mv | 10.3168/jds.S0022-0302(94)77079-X |
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J ; HEIRMAN, L. R ; WONG, T. S ; CHEW, B. P ; FRIGG, M ; VOLKER, L</creator><creatorcontrib>MICHAL, J. J ; HEIRMAN, L. R ; WONG, T. S ; CHEW, B. P ; FRIGG, M ; VOLKER, L</creatorcontrib><description>Beginning 4 wk prior to predicted calving, 14 Holstein cows per treatment were fed diets 1) unsupplemented (control) or supplemented daily with 2) 300 mg of beta-carotene, 3) 600 mg of beta-carotene, or 4) 120,000 IU of vitamin A. Blood was collected around calving on wk -4, -2, -1, 0 (within 24 h postcalving), 1, 2, and 4 for isolation of lymphocytes and neutrophils and for the analysis of plasma vitamins. Lacteal secretions were collected on wk 0, 1, 2, and 4 for the isolation of phagocytes. Cows supplemented with 600 mg of beta-carotene had higher concentrations of plasma beta-carotene and retinol than did unsupplemented cows. Supplemental vitamin A increased plasma retinol on wk 4 and decreased plasma beta-carotene on wk -1 and 0. Treatment did not affect concentrations of plasma alpha-tocopherol. Blood lymphocyte proliferation in response to concanavalin A, phytohemagglutinin, and pokeweed mitogen during the peripartum period was higher in cows supplemented with beta-carotene than in unsupplemented controls. Phagocytic activity of blood neutrophils was enhanced on wk 1 in cows fed 300 mg of beta-carotene. Intracellular killing by blood neutrophils was enhanced in cows supplemented with beta-carotene (wk 0) and vitamin A (wk 0 and 1). Iodine uptake and nitroblue tetrazolium reduction by blood neutrophils was stimulated in cows supplemented with beta-carotene. Phagocytic activity, iodine uptake, and nitroblue tetrazolium reduction by mammary phagocytes from all cows generally were lower postpartum than on the day of calving. The incidence of retained placenta and metritis was higher for unsupplemented cows than for cows supplemented with beta-carotene. Therefore, dietary beta-carotene can elevate peripartum concentrations of blood beta-carotene, enhance host defense mechanisms by potentiating lymphocyte and phagocyte function, and decrease the incidence of certain reproductive disorders.</description><identifier>ISSN: 0022-0302</identifier><identifier>EISSN: 1525-3198</identifier><identifier>DOI: 10.3168/jds.S0022-0302(94)77079-X</identifier><identifier>PMID: 8046080</identifier><identifier>CODEN: JDSCAE</identifier><language>eng</language><publisher>Savoy, IL: American Dairy Science Association</publisher><subject>Animals ; beta Carotene ; Biological and medical sciences ; Blood Bactericidal Activity ; Carotenoids - administration & dosage ; Carotenoids - blood ; Cattle - physiology ; Diet ; Eating ; Feeding. Feeding behavior ; Female ; Fundamental and applied biological sciences. Psychology ; Iodine - blood ; Labor, Obstetric ; Lactation ; Leukocytes - physiology ; Lymphocyte Activation ; Mammary Glands, Animal - cytology ; Neutrophils - physiology ; Phagocytosis ; Phytohemagglutinins - pharmacology ; Placenta Diseases - prevention & control ; Placenta Diseases - veterinary ; Pregnancy ; Vertebrates: anatomy and physiology, studies on body, several organs or systems ; Vitamin A - blood ; Vitamin E - blood</subject><ispartof>Journal of dairy science, 1994-05, Vol.77 (5), p.1408-1421</ispartof><rights>1994 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c420t-ae5d4fec84cdb51d3354b70f86150c93154277c1e6ee3e25fe4756d096d9ea453</citedby><cites>FETCH-LOGICAL-c420t-ae5d4fec84cdb51d3354b70f86150c93154277c1e6ee3e25fe4756d096d9ea453</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27846,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=4256360$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/8046080$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>MICHAL, J. J</creatorcontrib><creatorcontrib>HEIRMAN, L. R</creatorcontrib><creatorcontrib>WONG, T. S</creatorcontrib><creatorcontrib>CHEW, B. P</creatorcontrib><creatorcontrib>FRIGG, M</creatorcontrib><creatorcontrib>VOLKER, L</creatorcontrib><title>Modulatory effects of dietary β-carotene on blood and mammary leukocyte function in periparturient dairy cows</title><title>Journal of dairy science</title><addtitle>J Dairy Sci</addtitle><description>Beginning 4 wk prior to predicted calving, 14 Holstein cows per treatment were fed diets 1) unsupplemented (control) or supplemented daily with 2) 300 mg of beta-carotene, 3) 600 mg of beta-carotene, or 4) 120,000 IU of vitamin A. Blood was collected around calving on wk -4, -2, -1, 0 (within 24 h postcalving), 1, 2, and 4 for isolation of lymphocytes and neutrophils and for the analysis of plasma vitamins. Lacteal secretions were collected on wk 0, 1, 2, and 4 for the isolation of phagocytes. Cows supplemented with 600 mg of beta-carotene had higher concentrations of plasma beta-carotene and retinol than did unsupplemented cows. Supplemental vitamin A increased plasma retinol on wk 4 and decreased plasma beta-carotene on wk -1 and 0. Treatment did not affect concentrations of plasma alpha-tocopherol. Blood lymphocyte proliferation in response to concanavalin A, phytohemagglutinin, and pokeweed mitogen during the peripartum period was higher in cows supplemented with beta-carotene than in unsupplemented controls. Phagocytic activity of blood neutrophils was enhanced on wk 1 in cows fed 300 mg of beta-carotene. Intracellular killing by blood neutrophils was enhanced in cows supplemented with beta-carotene (wk 0) and vitamin A (wk 0 and 1). Iodine uptake and nitroblue tetrazolium reduction by blood neutrophils was stimulated in cows supplemented with beta-carotene. Phagocytic activity, iodine uptake, and nitroblue tetrazolium reduction by mammary phagocytes from all cows generally were lower postpartum than on the day of calving. The incidence of retained placenta and metritis was higher for unsupplemented cows than for cows supplemented with beta-carotene. Therefore, dietary beta-carotene can elevate peripartum concentrations of blood beta-carotene, enhance host defense mechanisms by potentiating lymphocyte and phagocyte function, and decrease the incidence of certain reproductive disorders.</description><subject>Animals</subject><subject>beta Carotene</subject><subject>Biological and medical sciences</subject><subject>Blood Bactericidal Activity</subject><subject>Carotenoids - administration & dosage</subject><subject>Carotenoids - blood</subject><subject>Cattle - physiology</subject><subject>Diet</subject><subject>Eating</subject><subject>Feeding. Feeding behavior</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Iodine - blood</subject><subject>Labor, Obstetric</subject><subject>Lactation</subject><subject>Leukocytes - physiology</subject><subject>Lymphocyte Activation</subject><subject>Mammary Glands, Animal - cytology</subject><subject>Neutrophils - physiology</subject><subject>Phagocytosis</subject><subject>Phytohemagglutinins - pharmacology</subject><subject>Placenta Diseases - prevention & control</subject><subject>Placenta Diseases - veterinary</subject><subject>Pregnancy</subject><subject>Vertebrates: anatomy and physiology, studies on body, several organs or systems</subject><subject>Vitamin A - blood</subject><subject>Vitamin E - blood</subject><issn>0022-0302</issn><issn>1525-3198</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1994</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>K30</sourceid><recordid>eNpdkd1qFDEUgIModbv6CEJEEb2Ymv9MLkuxKrT0QoXehWxyBmadSdYkg_S1fJA-U7PtshdehZPznZ_kQ-gtJWecqv7zNpSzH4Qw1hFO2EcjPmlNtOlun6EVlUx2nJr-OVodkZfotJRtCykj8gSd9EQo0pMVitcpLJOrKd9hGAbwteA04DBCde3q_l_nXU4VIuAU8WZKKWAXA57dPO-BCZbfyd9VwMMSfR0bNEa8gzzuXK5LHiFWHNzYUJ_-llfoxeCmAq8P5xr9uvzy8-Jbd3Xz9fvF-VXnBSO1cyCDaMv0woeNpIFzKTaaDL2iknjDqRRMa09BAXBgcgChpQrEqGDACcnX6MNT311OfxYo1c5j8TBNLkJaitVKMcN538B3_4HbtOTYdrO017qNM41bI_NE-ZxKyTDYXR7377eU2L0R24zYRyN2_93WCPtoxN622jeHCctmhnCsPCho-feHvCveTUN20Y_liAkmFVeEPwCy6pcr</recordid><startdate>19940501</startdate><enddate>19940501</enddate><creator>MICHAL, J. 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Psychology</topic><topic>Iodine - blood</topic><topic>Labor, Obstetric</topic><topic>Lactation</topic><topic>Leukocytes - physiology</topic><topic>Lymphocyte Activation</topic><topic>Mammary Glands, Animal - cytology</topic><topic>Neutrophils - physiology</topic><topic>Phagocytosis</topic><topic>Phytohemagglutinins - pharmacology</topic><topic>Placenta Diseases - prevention & control</topic><topic>Placenta Diseases - veterinary</topic><topic>Pregnancy</topic><topic>Vertebrates: anatomy and physiology, studies on body, several organs or systems</topic><topic>Vitamin A - blood</topic><topic>Vitamin E - blood</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>MICHAL, J. J</creatorcontrib><creatorcontrib>HEIRMAN, L. R</creatorcontrib><creatorcontrib>WONG, T. S</creatorcontrib><creatorcontrib>CHEW, B. 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J</au><au>HEIRMAN, L. R</au><au>WONG, T. S</au><au>CHEW, B. P</au><au>FRIGG, M</au><au>VOLKER, L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Modulatory effects of dietary β-carotene on blood and mammary leukocyte function in periparturient dairy cows</atitle><jtitle>Journal of dairy science</jtitle><addtitle>J Dairy Sci</addtitle><date>1994-05-01</date><risdate>1994</risdate><volume>77</volume><issue>5</issue><spage>1408</spage><epage>1421</epage><pages>1408-1421</pages><issn>0022-0302</issn><eissn>1525-3198</eissn><coden>JDSCAE</coden><abstract>Beginning 4 wk prior to predicted calving, 14 Holstein cows per treatment were fed diets 1) unsupplemented (control) or supplemented daily with 2) 300 mg of beta-carotene, 3) 600 mg of beta-carotene, or 4) 120,000 IU of vitamin A. Blood was collected around calving on wk -4, -2, -1, 0 (within 24 h postcalving), 1, 2, and 4 for isolation of lymphocytes and neutrophils and for the analysis of plasma vitamins. Lacteal secretions were collected on wk 0, 1, 2, and 4 for the isolation of phagocytes. Cows supplemented with 600 mg of beta-carotene had higher concentrations of plasma beta-carotene and retinol than did unsupplemented cows. Supplemental vitamin A increased plasma retinol on wk 4 and decreased plasma beta-carotene on wk -1 and 0. Treatment did not affect concentrations of plasma alpha-tocopherol. Blood lymphocyte proliferation in response to concanavalin A, phytohemagglutinin, and pokeweed mitogen during the peripartum period was higher in cows supplemented with beta-carotene than in unsupplemented controls. Phagocytic activity of blood neutrophils was enhanced on wk 1 in cows fed 300 mg of beta-carotene. Intracellular killing by blood neutrophils was enhanced in cows supplemented with beta-carotene (wk 0) and vitamin A (wk 0 and 1). Iodine uptake and nitroblue tetrazolium reduction by blood neutrophils was stimulated in cows supplemented with beta-carotene. Phagocytic activity, iodine uptake, and nitroblue tetrazolium reduction by mammary phagocytes from all cows generally were lower postpartum than on the day of calving. The incidence of retained placenta and metritis was higher for unsupplemented cows than for cows supplemented with beta-carotene. Therefore, dietary beta-carotene can elevate peripartum concentrations of blood beta-carotene, enhance host defense mechanisms by potentiating lymphocyte and phagocyte function, and decrease the incidence of certain reproductive disorders.</abstract><cop>Savoy, IL</cop><pub>American Dairy Science Association</pub><pmid>8046080</pmid><doi>10.3168/jds.S0022-0302(94)77079-X</doi><tpages>14</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Animals beta Carotene Biological and medical sciences Blood Bactericidal Activity Carotenoids - administration & dosage Carotenoids - blood Cattle - physiology Diet Eating Feeding. Feeding behavior Female Fundamental and applied biological sciences. Psychology Iodine - blood Labor, Obstetric Lactation Leukocytes - physiology Lymphocyte Activation Mammary Glands, Animal - cytology Neutrophils - physiology Phagocytosis Phytohemagglutinins - pharmacology Placenta Diseases - prevention & control Placenta Diseases - veterinary Pregnancy Vertebrates: anatomy and physiology, studies on body, several organs or systems Vitamin A - blood Vitamin E - blood |
title | Modulatory effects of dietary β-carotene on blood and mammary leukocyte function in periparturient dairy cows |
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