Effects of plane of nutrition, confinement system, and forage preservation on supplemental mineral intake and content of minerals in the blood of pregnant beef cows
Jugular blood samples were taken in four periods: autumn, early winter, midwinter, and spring in each of 2 consecutive years from 108 Shorthorn cows that were assigned to one of three housing systems (In, In–Out, or Out), one of three levels of feeding (ad libitum, 75% of ad libitum, or 50% of ad li...
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| Veröffentlicht in: | Canadian journal of animal science 1972-01, Vol.52 (4), p.693-702 |
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| container_title | Canadian journal of animal science |
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| creator | Fisher, L.J Lister, E.E Jordan, W.A Brossard, G.A Wauthy, J.M Comeau, J.E Proulx, J |
| description | Jugular blood samples were taken in four periods: autumn, early winter, midwinter, and spring in each of 2 consecutive years from 108 Shorthorn cows that were assigned to one of three housing systems (In, In–Out, or Out), one of three levels of feeding (ad libitum, 75% of ad libitum, or 50% of ad libitum), and one of two forages (hay or grass silage). Blood samples for each group on each bleeding date were analyzed for Ca, P, Mg, Mn, and Cu. The planned reduction in feed intake in the first three periods resulted in a consistent increase in the voluntary consumption of the mineral supplement. Plasma inorganic P levels parallelled the intake of the mineral supplement. Plasma Ca levels appeared unrelated to either feed or supplemental mineral intake. Plasma Mg concentrations were significantly (P |
| doi_str_mv | 10.4141/cjas72-082 |
| format | Article |
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Blood samples for each group on each bleeding date were analyzed for Ca, P, Mg, Mn, and Cu. The planned reduction in feed intake in the first three periods resulted in a consistent increase in the voluntary consumption of the mineral supplement. Plasma inorganic P levels parallelled the intake of the mineral supplement. Plasma Ca levels appeared unrelated to either feed or supplemental mineral intake. Plasma Mg concentrations were significantly (P < 0.05) depressed at the lowest level of feeding (14.82, 13.88, and 11.96 mg/liter for ad libitum, 75% ad libitum, and 50% ad libitum, respectively). Cows kept Out had consistently higher plasma Cu levels than In cows. Feeding of silage compared to hay caused a significant decrease (P < 0.05) in plasma Cu concentrations (912 vs. 734 μg/liter). This difference in plasma Cu levels as affected by method of forage preservation increased as the experiment progressed.</description><identifier>ISSN: 0008-3984</identifier><identifier>EISSN: 1918-1825</identifier><identifier>DOI: 10.4141/cjas72-082</identifier><language>eng</language><subject>animal breeding ; animal science ; livestock ; zoology</subject><ispartof>Canadian journal of animal science, 1972-01, Vol.52 (4), p.693-702</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c221t-e4fe050981b0c865123b6598196dfdc32ae78a2e9e0963a4530c26e79a7cf88e3</citedby><cites>FETCH-LOGICAL-c221t-e4fe050981b0c865123b6598196dfdc32ae78a2e9e0963a4530c26e79a7cf88e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>Fisher, L.J</creatorcontrib><creatorcontrib>Lister, E.E</creatorcontrib><creatorcontrib>Jordan, W.A</creatorcontrib><creatorcontrib>Brossard, G.A</creatorcontrib><creatorcontrib>Wauthy, J.M</creatorcontrib><creatorcontrib>Comeau, J.E</creatorcontrib><creatorcontrib>Proulx, J</creatorcontrib><title>Effects of plane of nutrition, confinement system, and forage preservation on supplemental mineral intake and content of minerals in the blood of pregnant beef cows</title><title>Canadian journal of animal science</title><description>Jugular blood samples were taken in four periods: autumn, early winter, midwinter, and spring in each of 2 consecutive years from 108 Shorthorn cows that were assigned to one of three housing systems (In, In–Out, or Out), one of three levels of feeding (ad libitum, 75% of ad libitum, or 50% of ad libitum), and one of two forages (hay or grass silage). Blood samples for each group on each bleeding date were analyzed for Ca, P, Mg, Mn, and Cu. The planned reduction in feed intake in the first three periods resulted in a consistent increase in the voluntary consumption of the mineral supplement. Plasma inorganic P levels parallelled the intake of the mineral supplement. Plasma Ca levels appeared unrelated to either feed or supplemental mineral intake. Plasma Mg concentrations were significantly (P < 0.05) depressed at the lowest level of feeding (14.82, 13.88, and 11.96 mg/liter for ad libitum, 75% ad libitum, and 50% ad libitum, respectively). Cows kept Out had consistently higher plasma Cu levels than In cows. Feeding of silage compared to hay caused a significant decrease (P < 0.05) in plasma Cu concentrations (912 vs. 734 μg/liter). This difference in plasma Cu levels as affected by method of forage preservation increased as the experiment progressed.</description><subject>animal breeding</subject><subject>animal science</subject><subject>livestock</subject><subject>zoology</subject><issn>0008-3984</issn><issn>1918-1825</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1972</creationdate><recordtype>article</recordtype><recordid>eNotkF1LwzAYhYMoOKc3_gFzLavmo2nTSxnzAwZe6K5Lmr6ZnV1SkkzZ__GHmm6DwJvD-5yTcBC6peQhpzl91BsVSpYRyc7QhFZUZlQycY4mhBCZ8Urml-gqhE2SZSHKCfpbGAM6BuwMHnplYbzYXfRd7JydYe2s6SxswUYc9iHCdoaVbbFxXq0BDx4C-B81wjidsBuG_kCrHm-T0afZJfUNB1uKi2NUeuS0DWmN4xfgpneuPXzDw9qqBDUAJjl-wzW6MImEm9OcotXz4nP-mi3fX97mT8tMM0ZjBrkBIkglaUO0LARlvClEklXRmlZzpqCUikEFpCq4ygUnmhVQVqrURkrgU3R_zNXeheDB1IPvtsrva0rqsd_62G-d-k3w3RE2ytVq7btQrz4YoZxwxoQUOf8HRBp7PA</recordid><startdate>19720101</startdate><enddate>19720101</enddate><creator>Fisher, L.J</creator><creator>Lister, E.E</creator><creator>Jordan, W.A</creator><creator>Brossard, G.A</creator><creator>Wauthy, J.M</creator><creator>Comeau, J.E</creator><creator>Proulx, J</creator><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19720101</creationdate><title>Effects of plane of nutrition, confinement system, and forage preservation on supplemental mineral intake and content of minerals in the blood of pregnant beef cows</title><author>Fisher, L.J ; Lister, E.E ; Jordan, W.A ; Brossard, G.A ; Wauthy, J.M ; Comeau, J.E ; Proulx, J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c221t-e4fe050981b0c865123b6598196dfdc32ae78a2e9e0963a4530c26e79a7cf88e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1972</creationdate><topic>animal breeding</topic><topic>animal science</topic><topic>livestock</topic><topic>zoology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fisher, L.J</creatorcontrib><creatorcontrib>Lister, E.E</creatorcontrib><creatorcontrib>Jordan, W.A</creatorcontrib><creatorcontrib>Brossard, G.A</creatorcontrib><creatorcontrib>Wauthy, J.M</creatorcontrib><creatorcontrib>Comeau, J.E</creatorcontrib><creatorcontrib>Proulx, J</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><jtitle>Canadian journal of animal science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fisher, L.J</au><au>Lister, E.E</au><au>Jordan, W.A</au><au>Brossard, G.A</au><au>Wauthy, J.M</au><au>Comeau, J.E</au><au>Proulx, J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of plane of nutrition, confinement system, and forage preservation on supplemental mineral intake and content of minerals in the blood of pregnant beef cows</atitle><jtitle>Canadian journal of animal science</jtitle><date>1972-01-01</date><risdate>1972</risdate><volume>52</volume><issue>4</issue><spage>693</spage><epage>702</epage><pages>693-702</pages><issn>0008-3984</issn><eissn>1918-1825</eissn><abstract>Jugular blood samples were taken in four periods: autumn, early winter, midwinter, and spring in each of 2 consecutive years from 108 Shorthorn cows that were assigned to one of three housing systems (In, In–Out, or Out), one of three levels of feeding (ad libitum, 75% of ad libitum, or 50% of ad libitum), and one of two forages (hay or grass silage). Blood samples for each group on each bleeding date were analyzed for Ca, P, Mg, Mn, and Cu. The planned reduction in feed intake in the first three periods resulted in a consistent increase in the voluntary consumption of the mineral supplement. Plasma inorganic P levels parallelled the intake of the mineral supplement. Plasma Ca levels appeared unrelated to either feed or supplemental mineral intake. Plasma Mg concentrations were significantly (P < 0.05) depressed at the lowest level of feeding (14.82, 13.88, and 11.96 mg/liter for ad libitum, 75% ad libitum, and 50% ad libitum, respectively). Cows kept Out had consistently higher plasma Cu levels than In cows. Feeding of silage compared to hay caused a significant decrease (P < 0.05) in plasma Cu concentrations (912 vs. 734 μg/liter). This difference in plasma Cu levels as affected by method of forage preservation increased as the experiment progressed.</abstract><doi>10.4141/cjas72-082</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0008-3984 |
| ispartof | Canadian journal of animal science, 1972-01, Vol.52 (4), p.693-702 |
| issn | 0008-3984 1918-1825 |
| language | eng |
| recordid | cdi_crossref_primary_10_4141_cjas72_082 |
| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | animal breeding animal science livestock zoology |
| title | Effects of plane of nutrition, confinement system, and forage preservation on supplemental mineral intake and content of minerals in the blood of pregnant beef cows |
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