Effect of dietary seaweed (Ascophyllum nodosum) supplementation on milk mineral concentrations, transfer efficiency, and hematological parameters in lactating Holstein cows
ABSTRACT: This study investigated the effect of feeding seaweed (Ascophyllum nodosum) to dairy cows on milk mineral concentrations, feed-to-milk mineral transfer efficiencies, and hematological parameters. Lactating Holstein cows (n = 46) were allocated to 1 of 2 diets (n = 23 each): (1) control (CO...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-10-01
|
| Series: | Journal of Dairy Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0022030223002436 |
| _version_ | 1797676355936059392 |
|---|---|
| author | E.E. Newton K. Theodoridou M. Terré S. Huws P. Ray C.K. Reynolds N. Prat D. Sabrià S. Stergiadis |
| author_facet | E.E. Newton K. Theodoridou M. Terré S. Huws P. Ray C.K. Reynolds N. Prat D. Sabrià S. Stergiadis |
| author_sort | E.E. Newton |
| collection | DOAJ |
| description | ABSTRACT: This study investigated the effect of feeding seaweed (Ascophyllum nodosum) to dairy cows on milk mineral concentrations, feed-to-milk mineral transfer efficiencies, and hematological parameters. Lactating Holstein cows (n = 46) were allocated to 1 of 2 diets (n = 23 each): (1) control (CON; without seaweed) and (2) seaweed (SWD; replacing 330 g/d of dried corn meal in CON with 330 g/d dried A. nodosum). All cows were fed the CON diet for 4 wk before the experiment (adaptation period), and animals were then fed the experimental diets for 9 wk. Samples included sequential 3-wk composite feed samples, a composite milk sample on the last day of each week, and a blood sample at the end of the study. Data were statistically analyzed using a linear mixed effects model with diet, week, and their interaction as fixed factors; cow (nested within diet) as a random factor; and data collected on the last day of the adaptation period as covariates. Feeding SWD increased milk concentrations of Mg (+6.6 mg/kg), P (+56 mg/kg), and I (+1,720 μg/kg). It also reduced transfer efficiency of Ca, Mg, P, K, Mn, and Zn, and increased transfer efficiency of Mo. Feeding SWD marginally reduced milk protein concentrations, whereas there was no effect of SWD feeding on cows' hematological parameters. Feeding A. nodosum increased milk I concentrations, which can be beneficial when feed I concentration is limited or in demographics or populations with increased risk of I deficiency (e.g., female adolescents, pregnant women, nursing mothers). However, care should also be taken when feeding SWD to dairy cows because, in the present study, milk I concentrations were particularly high and could result in I intakes that pose a health risk for children consuming milk. |
| first_indexed | 2024-03-11T22:27:54Z |
| format | Article |
| id | doaj.art-7179f01f3d2d4e4e9152af99ce9bea54 |
| institution | Directory Open Access Journal |
| issn | 0022-0302 |
| language | English |
| last_indexed | 2024-03-11T22:27:54Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Dairy Science |
| spelling | doaj.art-7179f01f3d2d4e4e9152af99ce9bea542023-09-24T05:13:34ZengElsevierJournal of Dairy Science0022-03022023-10-011061068806893Effect of dietary seaweed (Ascophyllum nodosum) supplementation on milk mineral concentrations, transfer efficiency, and hematological parameters in lactating Holstein cowsE.E. Newton0K. Theodoridou1M. Terré2S. Huws3P. Ray4C.K. Reynolds5N. Prat6D. Sabrià7S. Stergiadis8School of Agriculture, Policy and Development, University of Reading, Reading, RG6 6EU, United KingdomQueen's University Belfast, Institute for Global Food Security, Belfast, BT9 5DL, United Kingdom; Corresponding authorsDepartment of Ruminant Production, Institute de Recerca i Tecnologia Agroalimentàries, Caldes de Montbui, 08140, SpainQueen's University Belfast, Institute for Global Food Security, Belfast, BT9 5DL, United KingdomThe Nature Conservancy, Arlington, VA 22203School of Agriculture, Policy and Development, University of Reading, Reading, RG6 6EU, United KingdomDepartment of Ruminant Production, Institute de Recerca i Tecnologia Agroalimentàries, Caldes de Montbui, 08140, SpainDepartment of Ruminant Production, Institute de Recerca i Tecnologia Agroalimentàries, Caldes de Montbui, 08140, SpainSchool of Agriculture, Policy and Development, University of Reading, Reading, RG6 6EU, United Kingdom; Corresponding authorsABSTRACT: This study investigated the effect of feeding seaweed (Ascophyllum nodosum) to dairy cows on milk mineral concentrations, feed-to-milk mineral transfer efficiencies, and hematological parameters. Lactating Holstein cows (n = 46) were allocated to 1 of 2 diets (n = 23 each): (1) control (CON; without seaweed) and (2) seaweed (SWD; replacing 330 g/d of dried corn meal in CON with 330 g/d dried A. nodosum). All cows were fed the CON diet for 4 wk before the experiment (adaptation period), and animals were then fed the experimental diets for 9 wk. Samples included sequential 3-wk composite feed samples, a composite milk sample on the last day of each week, and a blood sample at the end of the study. Data were statistically analyzed using a linear mixed effects model with diet, week, and their interaction as fixed factors; cow (nested within diet) as a random factor; and data collected on the last day of the adaptation period as covariates. Feeding SWD increased milk concentrations of Mg (+6.6 mg/kg), P (+56 mg/kg), and I (+1,720 μg/kg). It also reduced transfer efficiency of Ca, Mg, P, K, Mn, and Zn, and increased transfer efficiency of Mo. Feeding SWD marginally reduced milk protein concentrations, whereas there was no effect of SWD feeding on cows' hematological parameters. Feeding A. nodosum increased milk I concentrations, which can be beneficial when feed I concentration is limited or in demographics or populations with increased risk of I deficiency (e.g., female adolescents, pregnant women, nursing mothers). However, care should also be taken when feeding SWD to dairy cows because, in the present study, milk I concentrations were particularly high and could result in I intakes that pose a health risk for children consuming milk.http://www.sciencedirect.com/science/article/pii/S0022030223002436bovine milkmineralsseaweediodineAscophyllum nodosum |
| spellingShingle | E.E. Newton K. Theodoridou M. Terré S. Huws P. Ray C.K. Reynolds N. Prat D. Sabrià S. Stergiadis Effect of dietary seaweed (Ascophyllum nodosum) supplementation on milk mineral concentrations, transfer efficiency, and hematological parameters in lactating Holstein cows Journal of Dairy Science bovine milk minerals seaweed iodine Ascophyllum nodosum |
| title | Effect of dietary seaweed (Ascophyllum nodosum) supplementation on milk mineral concentrations, transfer efficiency, and hematological parameters in lactating Holstein cows |
| title_full | Effect of dietary seaweed (Ascophyllum nodosum) supplementation on milk mineral concentrations, transfer efficiency, and hematological parameters in lactating Holstein cows |
| title_fullStr | Effect of dietary seaweed (Ascophyllum nodosum) supplementation on milk mineral concentrations, transfer efficiency, and hematological parameters in lactating Holstein cows |
| title_full_unstemmed | Effect of dietary seaweed (Ascophyllum nodosum) supplementation on milk mineral concentrations, transfer efficiency, and hematological parameters in lactating Holstein cows |
| title_short | Effect of dietary seaweed (Ascophyllum nodosum) supplementation on milk mineral concentrations, transfer efficiency, and hematological parameters in lactating Holstein cows |
| title_sort | effect of dietary seaweed ascophyllum nodosum supplementation on milk mineral concentrations transfer efficiency and hematological parameters in lactating holstein cows |
| topic | bovine milk minerals seaweed iodine Ascophyllum nodosum |
| url | http://www.sciencedirect.com/science/article/pii/S0022030223002436 |
| work_keys_str_mv | AT eenewton effectofdietaryseaweedascophyllumnodosumsupplementationonmilkmineralconcentrationstransferefficiencyandhematologicalparametersinlactatingholsteincows AT ktheodoridou effectofdietaryseaweedascophyllumnodosumsupplementationonmilkmineralconcentrationstransferefficiencyandhematologicalparametersinlactatingholsteincows AT mterre effectofdietaryseaweedascophyllumnodosumsupplementationonmilkmineralconcentrationstransferefficiencyandhematologicalparametersinlactatingholsteincows AT shuws effectofdietaryseaweedascophyllumnodosumsupplementationonmilkmineralconcentrationstransferefficiencyandhematologicalparametersinlactatingholsteincows AT pray effectofdietaryseaweedascophyllumnodosumsupplementationonmilkmineralconcentrationstransferefficiencyandhematologicalparametersinlactatingholsteincows AT ckreynolds effectofdietaryseaweedascophyllumnodosumsupplementationonmilkmineralconcentrationstransferefficiencyandhematologicalparametersinlactatingholsteincows AT nprat effectofdietaryseaweedascophyllumnodosumsupplementationonmilkmineralconcentrationstransferefficiencyandhematologicalparametersinlactatingholsteincows AT dsabria effectofdietaryseaweedascophyllumnodosumsupplementationonmilkmineralconcentrationstransferefficiencyandhematologicalparametersinlactatingholsteincows AT sstergiadis effectofdietaryseaweedascophyllumnodosumsupplementationonmilkmineralconcentrationstransferefficiencyandhematologicalparametersinlactatingholsteincows |