Effects of dietary energy density and feeding strategy during the dry period on feed intake, energy balance, milk production, and blood metabolites of Holstein cows
Our study aimed to assess the effects of dietary energy density and strategy of delivery during the dry period on production and metabolic responses of Holstein cows free of displacement of abomasum, retained placenta, metritis, or hypocalcemia. Twenty-seven multiparous cows dried-off 50 d before ca...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | JDS Communications |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666910222000928 |
| _version_ | 1797788365676871680 |
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| author | A. Pineda F.C. Cardoso M.R. Murphy J.K. Drackley |
| author_facet | A. Pineda F.C. Cardoso M.R. Murphy J.K. Drackley |
| author_sort | A. Pineda |
| collection | DOAJ |
| description | Our study aimed to assess the effects of dietary energy density and strategy of delivery during the dry period on production and metabolic responses of Holstein cows free of displacement of abomasum, retained placenta, metritis, or hypocalcemia. Twenty-seven multiparous cows dried-off 50 d before calving were assigned randomly to 1 of 3 dietary treatments: a controlled energy, high-fiber diet [CE; 1.39 Mcal net energy for lactation (NEL)/kg of dry matter (DM)] formulated to supply 100% of the NEL requirement at ad libitum intake; or a higher energy diet (1.58 Mcal/kg) fed either at ad libitum (HE) or restricted (RE) intake to supply ∼150 or 80% of the NEL requirements, respectively. After calving, all cows were fed the same lactation diet. Cows were individually fed and remained in the study until 28 d postpartum. Data were analyzed using 2 contrasts: CE versus HE (effect of diet composition in cows fed for ad libitum DM intake) and HE versus RE (effect of ad libitum or restricted intake of the same diet). Prepartum intakes of DM and NEL as well as energy balance (EB), were greater for HE than CE and greater for HE than RE. Body weight (BW) gain was higher in HE than in RE, but CE and HE did not differ. Change in body condition score did not differ between CE and HE or HE and RE. Postpartum intakes of DM and NEL, EB, BW, body condition score, calf birth BW, milk yield, and milk components did not differ between CE and HE or HE and RE. Concentrations of glucose, insulin, nonesterified fatty acids, β-hydroxybutyrate, Ca, and Mg pre- and postpartum did not differ among diets. Although sample size was low, dry period plane of energy intake affected prepartum DM intake, EB, and BW gain but did not affect postpartum intakes of DM and NEL, yields of milk and milk components, or blood metabolites in healthy cows. |
| first_indexed | 2024-03-13T01:35:32Z |
| format | Article |
| id | doaj.art-0a91c5f0d80f46bb9113fdbeb588c854 |
| institution | Directory Open Access Journal |
| issn | 2666-9102 |
| language | English |
| last_indexed | 2024-03-13T01:35:32Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | JDS Communications |
| spelling | doaj.art-0a91c5f0d80f46bb9113fdbeb588c8542023-07-04T05:11:03ZengElsevierJDS Communications2666-91022022-11-0136403407Effects of dietary energy density and feeding strategy during the dry period on feed intake, energy balance, milk production, and blood metabolites of Holstein cowsA. Pineda0F.C. Cardoso1M.R. Murphy2J.K. Drackley3Department of Animal Sciences, University of Illinois, 1207 West Gregory Drive, Urbana 61801Department of Animal Sciences, University of Illinois, 1207 West Gregory Drive, Urbana 61801Department of Animal Sciences, University of Illinois, 1207 West Gregory Drive, Urbana 61801Corresponding author; Department of Animal Sciences, University of Illinois, 1207 West Gregory Drive, Urbana 61801Our study aimed to assess the effects of dietary energy density and strategy of delivery during the dry period on production and metabolic responses of Holstein cows free of displacement of abomasum, retained placenta, metritis, or hypocalcemia. Twenty-seven multiparous cows dried-off 50 d before calving were assigned randomly to 1 of 3 dietary treatments: a controlled energy, high-fiber diet [CE; 1.39 Mcal net energy for lactation (NEL)/kg of dry matter (DM)] formulated to supply 100% of the NEL requirement at ad libitum intake; or a higher energy diet (1.58 Mcal/kg) fed either at ad libitum (HE) or restricted (RE) intake to supply ∼150 or 80% of the NEL requirements, respectively. After calving, all cows were fed the same lactation diet. Cows were individually fed and remained in the study until 28 d postpartum. Data were analyzed using 2 contrasts: CE versus HE (effect of diet composition in cows fed for ad libitum DM intake) and HE versus RE (effect of ad libitum or restricted intake of the same diet). Prepartum intakes of DM and NEL as well as energy balance (EB), were greater for HE than CE and greater for HE than RE. Body weight (BW) gain was higher in HE than in RE, but CE and HE did not differ. Change in body condition score did not differ between CE and HE or HE and RE. Postpartum intakes of DM and NEL, EB, BW, body condition score, calf birth BW, milk yield, and milk components did not differ between CE and HE or HE and RE. Concentrations of glucose, insulin, nonesterified fatty acids, β-hydroxybutyrate, Ca, and Mg pre- and postpartum did not differ among diets. Although sample size was low, dry period plane of energy intake affected prepartum DM intake, EB, and BW gain but did not affect postpartum intakes of DM and NEL, yields of milk and milk components, or blood metabolites in healthy cows.http://www.sciencedirect.com/science/article/pii/S2666910222000928 |
| spellingShingle | A. Pineda F.C. Cardoso M.R. Murphy J.K. Drackley Effects of dietary energy density and feeding strategy during the dry period on feed intake, energy balance, milk production, and blood metabolites of Holstein cows JDS Communications |
| title | Effects of dietary energy density and feeding strategy during the dry period on feed intake, energy balance, milk production, and blood metabolites of Holstein cows |
| title_full | Effects of dietary energy density and feeding strategy during the dry period on feed intake, energy balance, milk production, and blood metabolites of Holstein cows |
| title_fullStr | Effects of dietary energy density and feeding strategy during the dry period on feed intake, energy balance, milk production, and blood metabolites of Holstein cows |
| title_full_unstemmed | Effects of dietary energy density and feeding strategy during the dry period on feed intake, energy balance, milk production, and blood metabolites of Holstein cows |
| title_short | Effects of dietary energy density and feeding strategy during the dry period on feed intake, energy balance, milk production, and blood metabolites of Holstein cows |
| title_sort | effects of dietary energy density and feeding strategy during the dry period on feed intake energy balance milk production and blood metabolites of holstein cows |
| url | http://www.sciencedirect.com/science/article/pii/S2666910222000928 |
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