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Cellular defense mechanisms in the udder and lactation of goats
Migration of neutrophils into mammary tissue provides the first immunological line of defense against bacteria that penetrate the physical barrier of the teat canal. Evasion of neutrophil defenses provides an opportunity for invading bacteria to become established. Depletion of neutrophils results i...
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| Published in: | Journal of animal science 1997-02, Vol.75 (2), p.556-565 |
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| Language: | English |
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| container_end_page | 565 |
| container_issue | 2 |
| container_start_page | 556 |
| container_title | Journal of animal science |
| container_volume | 75 |
| creator | Paape, M.J. (Immunology and Disease Resistance Laboratory, USDA, ARS, Beltsville, MD.) Capuco, A.V |
| description | Migration of neutrophils into mammary tissue provides the first immunological line of defense against bacteria that penetrate the physical barrier of the teat canal. Evasion of neutrophil defenses provides an opportunity for invading bacteria to become established. Depletion of neutrophils results in a dramatic increase in susceptibility to intramammary infection. Numerous cytoplasmic particles are shed from the apical surface of mammary secretory cells during milk secretion in goats. Only those counting methods that are specific for deoxyribonucleic acid can distinguish cell-like particles from somatic cells and thereby give reliable estimates of somatic cell numbers in goat milk. Unlike in milk from dairy cows, the somatic cell count in goat milk is influenced by the presence of nucleated cytoplasmic particles, stage of lactation, parity, and caprine arthritis-encephalitis. Investigations indicate that a dry period is necessary for optimal milk production in dairy cows but may not be necessary in goats. However, in many other respects regulation of bovine and caprine lactation seems to be quite similar. Studies have demonstrated additive galactopoietic effects of growth hormone and frequent milking in both species and a recently isolated chemical feedback inhibitor of lactation seems effective across both species. Increasing lactational performance has the potential for decreasing milk somatic cell counts in late lactation |
| doi_str_mv | 10.2527/1997.752556x |
| format | article |
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(Immunology and Disease Resistance Laboratory, USDA, ARS, Beltsville, MD.) ; Capuco, A.V</creator><creatorcontrib>Paape, M.J. (Immunology and Disease Resistance Laboratory, USDA, ARS, Beltsville, MD.) ; Capuco, A.V</creatorcontrib><description>Migration of neutrophils into mammary tissue provides the first immunological line of defense against bacteria that penetrate the physical barrier of the teat canal. Evasion of neutrophil defenses provides an opportunity for invading bacteria to become established. Depletion of neutrophils results in a dramatic increase in susceptibility to intramammary infection. Numerous cytoplasmic particles are shed from the apical surface of mammary secretory cells during milk secretion in goats. Only those counting methods that are specific for deoxyribonucleic acid can distinguish cell-like particles from somatic cells and thereby give reliable estimates of somatic cell numbers in goat milk. Unlike in milk from dairy cows, the somatic cell count in goat milk is influenced by the presence of nucleated cytoplasmic particles, stage of lactation, parity, and caprine arthritis-encephalitis. Investigations indicate that a dry period is necessary for optimal milk production in dairy cows but may not be necessary in goats. However, in many other respects regulation of bovine and caprine lactation seems to be quite similar. Studies have demonstrated additive galactopoietic effects of growth hormone and frequent milking in both species and a recently isolated chemical feedback inhibitor of lactation seems effective across both species. Increasing lactational performance has the potential for decreasing milk somatic cell counts in late lactation</description><identifier>ISSN: 0021-8812</identifier><identifier>EISSN: 1525-3163</identifier><identifier>EISSN: 0021-8812</identifier><identifier>DOI: 10.2527/1997.752556x</identifier><identifier>PMID: 9051480</identifier><language>eng</language><publisher>Savoy, IL: Am Soc Animal Sci</publisher><subject>ADN ; Animal productions ; Animal reproduction ; Animals ; Biological and medical sciences ; CAPRIN ; CAPRINOS ; Cattle ; CHOIX DE LA DATE ; CONTEO DE CELULAS SOMATICAS ; Cytoplasm - ultrastructure ; Dairy farms ; DIVISION CELLULAIRE ; DIVISION CELULAR ; ELECCION DE LA EPOCA ; Female ; Food, Fortified ; Fundamental and applied biological sciences. Psychology ; GLANDE MAMMAIRE ; GLANDULAS MAMARIAS ; Goat Diseases - pathology ; Goat Diseases - physiopathology ; Goat Diseases - prevention & control ; Goats ; Goats - physiology ; GRANULOCITOS ; GRANULOCYTE ; Growth Hormone - administration & dosage ; LACTACION ; LACTATION ; Lactation - physiology ; Mammary Glands, Animal - cytology ; Mammary Glands, Animal - pathology ; Mammary Glands, Animal - physiology ; MAMMITE ; MASTITIS ; Mastitis - pathology ; Mastitis - prevention & control ; Mastitis - veterinary ; MICROSCOPIA ; MICROSCOPIE ; Microscopy, Electron - veterinary ; Milk - cytology ; Neutrophils - cytology ; Neutrophils - physiology ; Neutrophils - ultrastructure ; NUMERATION CELLULAIRE SOMATIQUE ; ORDENO ; Parity ; PERIODE DE TARISSEMENT ; PERIODO DE SECADO ; PEZON ; RENDEMENT LAITIER ; RENDIMIENTO LECHERO ; SOMATOTROPINA ; SOMATOTROPINE ; Terrestrial animal productions ; Time Factors ; TRAITE ; TRAYON ; VACAS LECHERAS ; VACHE LAITIERE ; Vertebrates</subject><ispartof>Journal of animal science, 1997-02, Vol.75 (2), p.556-565</ispartof><rights>1997 INIST-CNRS</rights><rights>Copyright American Society of Animal Science Feb 1997</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c391t-4b153eb6f35f78b37b3d69b5cd034f20c79fc1d96ed1aa41c01676c61947a9ad3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>309,310,314,780,784,789,790,23930,23931,25140,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2595765$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/9051480$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Paape, M.J. (Immunology and Disease Resistance Laboratory, USDA, ARS, Beltsville, MD.)</creatorcontrib><creatorcontrib>Capuco, A.V</creatorcontrib><title>Cellular defense mechanisms in the udder and lactation of goats</title><title>Journal of animal science</title><addtitle>J Anim Sci</addtitle><description>Migration of neutrophils into mammary tissue provides the first immunological line of defense against bacteria that penetrate the physical barrier of the teat canal. Evasion of neutrophil defenses provides an opportunity for invading bacteria to become established. Depletion of neutrophils results in a dramatic increase in susceptibility to intramammary infection. Numerous cytoplasmic particles are shed from the apical surface of mammary secretory cells during milk secretion in goats. Only those counting methods that are specific for deoxyribonucleic acid can distinguish cell-like particles from somatic cells and thereby give reliable estimates of somatic cell numbers in goat milk. Unlike in milk from dairy cows, the somatic cell count in goat milk is influenced by the presence of nucleated cytoplasmic particles, stage of lactation, parity, and caprine arthritis-encephalitis. Investigations indicate that a dry period is necessary for optimal milk production in dairy cows but may not be necessary in goats. However, in many other respects regulation of bovine and caprine lactation seems to be quite similar. Studies have demonstrated additive galactopoietic effects of growth hormone and frequent milking in both species and a recently isolated chemical feedback inhibitor of lactation seems effective across both species. Increasing lactational performance has the potential for decreasing milk somatic cell counts in late lactation</description><subject>ADN</subject><subject>Animal productions</subject><subject>Animal reproduction</subject><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>CAPRIN</subject><subject>CAPRINOS</subject><subject>Cattle</subject><subject>CHOIX DE LA DATE</subject><subject>CONTEO DE CELULAS SOMATICAS</subject><subject>Cytoplasm - ultrastructure</subject><subject>Dairy farms</subject><subject>DIVISION CELLULAIRE</subject><subject>DIVISION CELULAR</subject><subject>ELECCION DE LA EPOCA</subject><subject>Female</subject><subject>Food, Fortified</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>GLANDE MAMMAIRE</subject><subject>GLANDULAS MAMARIAS</subject><subject>Goat Diseases - pathology</subject><subject>Goat Diseases - physiopathology</subject><subject>Goat Diseases - prevention & control</subject><subject>Goats</subject><subject>Goats - physiology</subject><subject>GRANULOCITOS</subject><subject>GRANULOCYTE</subject><subject>Growth Hormone - administration & dosage</subject><subject>LACTACION</subject><subject>LACTATION</subject><subject>Lactation - physiology</subject><subject>Mammary Glands, Animal - cytology</subject><subject>Mammary Glands, Animal - pathology</subject><subject>Mammary Glands, Animal - physiology</subject><subject>MAMMITE</subject><subject>MASTITIS</subject><subject>Mastitis - pathology</subject><subject>Mastitis - prevention & control</subject><subject>Mastitis - veterinary</subject><subject>MICROSCOPIA</subject><subject>MICROSCOPIE</subject><subject>Microscopy, Electron - veterinary</subject><subject>Milk - cytology</subject><subject>Neutrophils - cytology</subject><subject>Neutrophils - physiology</subject><subject>Neutrophils - ultrastructure</subject><subject>NUMERATION CELLULAIRE SOMATIQUE</subject><subject>ORDENO</subject><subject>Parity</subject><subject>PERIODE DE TARISSEMENT</subject><subject>PERIODO DE SECADO</subject><subject>PEZON</subject><subject>RENDEMENT LAITIER</subject><subject>RENDIMIENTO LECHERO</subject><subject>SOMATOTROPINA</subject><subject>SOMATOTROPINE</subject><subject>Terrestrial animal productions</subject><subject>Time Factors</subject><subject>TRAITE</subject><subject>TRAYON</subject><subject>VACAS LECHERAS</subject><subject>VACHE LAITIERE</subject><subject>Vertebrates</subject><issn>0021-8812</issn><issn>1525-3163</issn><issn>0021-8812</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><recordid>eNpd0MtrFEEQBvBGlLiJ3jwJQiOakxO7pqdfJ5ElxkDAg-bc1PRjd5Z5xO4Zov-9veyQg6cuqB9fFx8hb4Bd1aJWn8EYdaVELYT884xsoEwVB8mfkw1jNVRaQ_2SnOd8YAxqYcQZOTNMQKPZhnzZhr5fekzUhxjGHOgQ3B7HLg-ZdiOd94Eu3odEcfS0Rzfj3E0jnSLdTTjnV-RFxD6H1-t7Qe6_Xf_afq_uftzcbr_eVY4bmKumBcFDKyMXUemWq5Z7aVrhPONNrJlTJjrwRgYPiA04BlJJJ8E0Cg16fkEuT7kPafq9hDzbocuu3I5jmJZsldZSStAFvv8PHqYljeU2W4MGxrRSBX06IZemnFOI9iF1A6a_Fpg9lmqPpdq11MLfrZlLOwT_hNcWy_7DusfssI8JR9flJ3bsXElR2McT23e7_WOXgs0D9n0JBXvArIStbfmvuLcnF3GyuEsl6v6nUVw2RvJ_HXGR1Q</recordid><startdate>19970201</startdate><enddate>19970201</enddate><creator>Paape, M.J. (Immunology and Disease Resistance Laboratory, USDA, ARS, Beltsville, MD.)</creator><creator>Capuco, A.V</creator><general>Am Soc Animal Sci</general><general>American Society of Animal Science</general><general>Oxford University Press</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>K9.</scope><scope>U9A</scope><scope>7X8</scope></search><sort><creationdate>19970201</creationdate><title>Cellular defense mechanisms in the udder and lactation of goats</title><author>Paape, M.J. (Immunology and Disease Resistance Laboratory, USDA, ARS, Beltsville, MD.) ; Capuco, A.V</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-4b153eb6f35f78b37b3d69b5cd034f20c79fc1d96ed1aa41c01676c61947a9ad3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>ADN</topic><topic>Animal productions</topic><topic>Animal reproduction</topic><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>CAPRIN</topic><topic>CAPRINOS</topic><topic>Cattle</topic><topic>CHOIX DE LA DATE</topic><topic>CONTEO DE CELULAS SOMATICAS</topic><topic>Cytoplasm - ultrastructure</topic><topic>Dairy farms</topic><topic>DIVISION CELLULAIRE</topic><topic>DIVISION CELULAR</topic><topic>ELECCION DE LA EPOCA</topic><topic>Female</topic><topic>Food, Fortified</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>GLANDE MAMMAIRE</topic><topic>GLANDULAS MAMARIAS</topic><topic>Goat Diseases - pathology</topic><topic>Goat Diseases - physiopathology</topic><topic>Goat Diseases - prevention & control</topic><topic>Goats</topic><topic>Goats - physiology</topic><topic>GRANULOCITOS</topic><topic>GRANULOCYTE</topic><topic>Growth Hormone - administration & dosage</topic><topic>LACTACION</topic><topic>LACTATION</topic><topic>Lactation - physiology</topic><topic>Mammary Glands, Animal - cytology</topic><topic>Mammary Glands, Animal - pathology</topic><topic>Mammary Glands, Animal - physiology</topic><topic>MAMMITE</topic><topic>MASTITIS</topic><topic>Mastitis - pathology</topic><topic>Mastitis - prevention & control</topic><topic>Mastitis - veterinary</topic><topic>MICROSCOPIA</topic><topic>MICROSCOPIE</topic><topic>Microscopy, Electron - veterinary</topic><topic>Milk - cytology</topic><topic>Neutrophils - cytology</topic><topic>Neutrophils - physiology</topic><topic>Neutrophils - ultrastructure</topic><topic>NUMERATION CELLULAIRE SOMATIQUE</topic><topic>ORDENO</topic><topic>Parity</topic><topic>PERIODE DE TARISSEMENT</topic><topic>PERIODO DE SECADO</topic><topic>PEZON</topic><topic>RENDEMENT LAITIER</topic><topic>RENDIMIENTO LECHERO</topic><topic>SOMATOTROPINA</topic><topic>SOMATOTROPINE</topic><topic>Terrestrial animal productions</topic><topic>Time Factors</topic><topic>TRAITE</topic><topic>TRAYON</topic><topic>VACAS LECHERAS</topic><topic>VACHE LAITIERE</topic><topic>Vertebrates</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Paape, M.J. (Immunology and Disease Resistance Laboratory, USDA, ARS, Beltsville, MD.)</creatorcontrib><creatorcontrib>Capuco, A.V</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of animal science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Paape, M.J. (Immunology and Disease Resistance Laboratory, USDA, ARS, Beltsville, MD.)</au><au>Capuco, A.V</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Cellular defense mechanisms in the udder and lactation of goats</atitle><jtitle>Journal of animal science</jtitle><addtitle>J Anim Sci</addtitle><date>1997-02-01</date><risdate>1997</risdate><volume>75</volume><issue>2</issue><spage>556</spage><epage>565</epage><pages>556-565</pages><issn>0021-8812</issn><eissn>1525-3163</eissn><eissn>0021-8812</eissn><abstract>Migration of neutrophils into mammary tissue provides the first immunological line of defense against bacteria that penetrate the physical barrier of the teat canal. Evasion of neutrophil defenses provides an opportunity for invading bacteria to become established. Depletion of neutrophils results in a dramatic increase in susceptibility to intramammary infection. Numerous cytoplasmic particles are shed from the apical surface of mammary secretory cells during milk secretion in goats. Only those counting methods that are specific for deoxyribonucleic acid can distinguish cell-like particles from somatic cells and thereby give reliable estimates of somatic cell numbers in goat milk. Unlike in milk from dairy cows, the somatic cell count in goat milk is influenced by the presence of nucleated cytoplasmic particles, stage of lactation, parity, and caprine arthritis-encephalitis. Investigations indicate that a dry period is necessary for optimal milk production in dairy cows but may not be necessary in goats. However, in many other respects regulation of bovine and caprine lactation seems to be quite similar. Studies have demonstrated additive galactopoietic effects of growth hormone and frequent milking in both species and a recently isolated chemical feedback inhibitor of lactation seems effective across both species. Increasing lactational performance has the potential for decreasing milk somatic cell counts in late lactation</abstract><cop>Savoy, IL</cop><pub>Am Soc Animal Sci</pub><pmid>9051480</pmid><doi>10.2527/1997.752556x</doi><tpages>10</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0021-8812 |
| ispartof | Journal of animal science, 1997-02, Vol.75 (2), p.556-565 |
| issn | 0021-8812 1525-3163 0021-8812 |
| language | eng |
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| source | Oxford Journals Online |
| subjects | ADN Animal productions Animal reproduction Animals Biological and medical sciences CAPRIN CAPRINOS Cattle CHOIX DE LA DATE CONTEO DE CELULAS SOMATICAS Cytoplasm - ultrastructure Dairy farms DIVISION CELLULAIRE DIVISION CELULAR ELECCION DE LA EPOCA Female Food, Fortified Fundamental and applied biological sciences. Psychology GLANDE MAMMAIRE GLANDULAS MAMARIAS Goat Diseases - pathology Goat Diseases - physiopathology Goat Diseases - prevention & control Goats Goats - physiology GRANULOCITOS GRANULOCYTE Growth Hormone - administration & dosage LACTACION LACTATION Lactation - physiology Mammary Glands, Animal - cytology Mammary Glands, Animal - pathology Mammary Glands, Animal - physiology MAMMITE MASTITIS Mastitis - pathology Mastitis - prevention & control Mastitis - veterinary MICROSCOPIA MICROSCOPIE Microscopy, Electron - veterinary Milk - cytology Neutrophils - cytology Neutrophils - physiology Neutrophils - ultrastructure NUMERATION CELLULAIRE SOMATIQUE ORDENO Parity PERIODE DE TARISSEMENT PERIODO DE SECADO PEZON RENDEMENT LAITIER RENDIMIENTO LECHERO SOMATOTROPINA SOMATOTROPINE Terrestrial animal productions Time Factors TRAITE TRAYON VACAS LECHERAS VACHE LAITIERE Vertebrates |
| title | Cellular defense mechanisms in the udder and lactation of goats |
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