{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/24339"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/24339","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Strategies to Decrease Incidence of Fatty Liver in Dairy Cows","abstract":"Holstein cows were used to explore aspects of dietary strategies to decrease lipid accumulation in the liver after parturition. In experiment 1, 75 cows (30 primiparous) were fed controlled-energy, high-forage (CEHF) diets or were overfed energy (OVERFED) from dry-off to parturition, or CEHF for the first 40 d after dry-off, followed by OVERFED for the last approximately 20 d before parturition (2-stage). During the periparturient period, cows fed CEHF had lower lipid accumulation in the liver than OVERFED cows and there was no advantage to using the 2-stage feeding strategy. In experiment 2, 16 cannulated mulitparous cows were assigned to one of 4 feeding combinations. Cows were fed CEHF throughout the entire dry period or fed with a 2-stage dietary strategy. Half of each group of cows (CEHF or 2-stage) were fed a diet with monensin added; whereas, the other half were fed a diet without monensin. Monensin tended to modulate rumen fermentation, particularly in cows fed the 2-stage diet strategy. Supplemental monensin increased milk production and had neutral or positive effects on rumen fermentation and rumen dynamics. Neither the higher energy closeup diet in the 2-stage strategy nor monensin supplementation affected ruminal papillae length. In these experiments, there were few advantages demonstrated for the 2-stage strategy compared with the single-group CEHF strategy during the dry period.","abstract_html":"Holstein cows were used to explore aspects of dietary strategies to decrease lipid accumulation in the liver after parturition. In experiment 1, 75 cows (30 primiparous) were fed controlled-energy, high-forage (CEHF) diets or were overfed energy (OVERFED) from dry-off to parturition, or CEHF for the first 40 d after dry-off, followed by OVERFED for the last approximately 20 d before parturition (2-stage). During the periparturient period, cows fed CEHF had lower lipid accumulation in the liver than OVERFED cows and there was no advantage to using the 2-stage feeding strategy. In experiment 2, 16 cannulated mulitparous cows were assigned to one of 4 feeding combinations. Cows were fed CEHF throughout the entire dry period or fed with a 2-stage dietary strategy. Half of each group of cows (CEHF or 2-stage) were fed a diet with monensin added; whereas, the other half were fed a diet without monensin. Monensin tended to modulate rumen fermentation, particularly in cows fed the 2-stage diet strategy. Supplemental monensin increased milk production and had neutral or positive effects on rumen fermentation and rumen dynamics. Neither the higher energy closeup diet in the 2-stage strategy nor monensin supplementation affected ruminal papillae length. In these experiments, there were few advantages demonstrated for the 2-stage strategy compared with the single-group CEHF strategy during the dry period.","abstract_has_math":false,"creators":["Richards, Bruce F."],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Animal Sciences","degree_department":null,"school":null,"contributors":["Drackley, James K.","Hutjens, Michael F.","Murphy, Michael R.","Wallace, Richard L.","Loor, Juan J."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-25T14:54:42Z","date_published":"2011-05-25T14:54:42Z","updated_at":"2026-07-22T22:25:23Z","subjects":["dry cow","transition","fatty liver","feeding"],"languages":["en"],"rights":["Copyright 2011 Bruce Richards"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/24339","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Drackley, James K.","Hutjens, Michael F.","Murphy, Michael R.","Wallace, Richard L.","Loor, Juan J."]},{"key":"dc:creator","label":"Author","values":["Richards, Bruce F."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-25T14:54:42Z","2011-05"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Animal Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["dry cow","transition","fatty liver","feeding"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2011 Bruce Richards"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/24339"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Holstein cows were used to explore aspects of dietary strategies to decrease lipid accumulation in the liver after parturition. In experiment 1, 75 cows (30 primiparous) were fed controlled-energy, high-forage (CEHF) diets or were overfed energy (OVERFED) from dry-off to parturition, or CEHF for the first 40 d after dry-off, followed by OVERFED for the last approximately 20 d before parturition (2-stage). During the periparturient period, cows fed CEHF had lower lipid accumulation in the liver than OVERFED cows and there was no advantage to using the 2-stage feeding strategy. In experiment 2, 16 cannulated mulitparous cows were assigned to one of 4 feeding combinations. Cows were fed CEHF throughout the entire dry period or fed with a 2-stage dietary strategy. Half of each group of cows (CEHF or 2-stage) were fed a diet with monensin added; whereas, the other half were fed a diet without monensin. Monensin tended to modulate rumen fermentation, particularly in cows fed the 2-stage diet strategy. Supplemental monensin increased milk production and had neutral or positive effects on rumen fermentation and rumen dynamics. Neither the higher energy closeup diet in the 2-stage strategy nor monensin supplementation affected ruminal papillae length. In these experiments, there were few advantages demonstrated for the 2-stage strategy compared with the single-group CEHF strategy during the dry period.","Item withdrawn by Alexis Thompson (athmpsn1@illinois.edu) on 2011-01-11T19:41:27Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Dissertation.doc: 887296 bytes, checksum: 48f44abdd6a88fff95ba463d1a52fd8c (MD5) Richards_Bruce.pdf: 824706 bytes, checksum: e7496a3fcb51165f691e5cb83e7b395a (MD5)","Made available in DSpace on 2011-05-25T14:54:42Z (GMT). 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In experiment 1, 75 cows (30 primiparous) were fed controlled-energy, high-forage (CEHF) diets or were overfed energy (OVERFED) from dry-off to parturition, or CEHF for the first 40 d after dry-off, followed by OVERFED for the last approximately 20 d before parturition (2-stage). During the periparturient period, cows fed CEHF had lower lipid accumulation in the liver than OVERFED cows and there was no advantage to using the 2-stage feeding strategy. In experiment 2, 16 cannulated mulitparous cows were assigned to one of 4 feeding combinations. Cows were fed CEHF throughout the entire dry period or fed with a 2-stage dietary strategy. Half of each group of cows (CEHF or 2-stage) were fed a diet with monensin added; whereas, the other half were fed a diet without monensin. Monensin tended to modulate rumen fermentation, particularly in cows fed the 2-stage diet strategy. Supplemental monensin increased milk production and had neutral or positive effects on rumen fermentation and rumen dynamics. Neither the higher energy closeup diet in the 2-stage strategy nor monensin supplementation affected ruminal papillae length. In these experiments, there were few advantages demonstrated for the 2-stage strategy compared with the single-group CEHF strategy during the dry period.","Item withdrawn by Alexis Thompson (athmpsn1@illinois.edu) on 2011-01-11T19:41:27Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Dissertation.doc: 887296 bytes, checksum: 48f44abdd6a88fff95ba463d1a52fd8c (MD5) Richards_Bruce.pdf: 824706 bytes, checksum: e7496a3fcb51165f691e5cb83e7b395a (MD5)","Made available in DSpace on 2011-05-25T14:54:42Z (GMT). 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