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Xiong C, Petursdottir AH, Rikhardsson G, Stergiadis S, Raab A, Feldmann J. Speciation of arsenic in milk from cows fed seaweed. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:6957-6965. [PMID: 38597303 DOI: 10.1002/jsfa.13528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 03/18/2024] [Accepted: 04/10/2024] [Indexed: 04/11/2024]
Abstract
BACKGROUND Including seaweed in cattle feed has gained increased interest, but it is important to take into account that the concentration of toxic metals, especially arsenic, is high in seaweed. This study investigated the arsenic species in milk from seaweed-fed cows. RESULTS Total arsenic in milk of control diets (9.3 ± 1.0 μg As kg-1, n = 4, dry mass) was significantly higher than seaweed-based diet (high-seaweed diet: 7.8 ± 0.4 μg As kg-1, P < 0.05, n = 4, dry mass; low-seaweed diet: 6.2 ± 1.0 μg As kg-1, P < 0.01, n = 4, dry mass). Arsenic speciation showed that the main species present were arsenobetaine (AB) and arsenate (As(V)) (37% and 24% of the total arsenic, respectively). Trace amounts of dimethylarsinic acid (DMA) and arsenocholine (AC) have also been detected in milk. Apart from arsenate being significantly lower (P < 0.001) in milk from seaweed-fed cows than in milk from the control group, other arsenic species showed no significant differences between groups. CONCLUSION The lower total arsenic and arsenate in seaweed diet groups indicates a possible competition of uptake between arsenate and phosphate, and the presence of AC indicates that a reduction of AB occurred in the digestive tract. Feeding a seaweed blend (91% Ascophyllum nodosum and 9% Laminaria digitata) does not raise As-related safety concerns for milk. © 2024 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Chan Xiong
- Analytical Chemistry, Institute of Chemistry, University of Graz, Graz, Austria
| | | | | | - Sokratis Stergiadis
- Department of Animal Sciences, School of Agriculture Policy and Development, University of Reading, Reading, United Kingdom
| | - Andrea Raab
- Analytical Chemistry, Institute of Chemistry, University of Graz, Graz, Austria
| | - Jörg Feldmann
- Analytical Chemistry, Institute of Chemistry, University of Graz, Graz, Austria
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Wang B, Ormston S, Płatosz N, Parker JK, Qin N, Humphries DJ, Pétursdóttir ÁH, Halmemies-Beauchet-Filleau A, Juniper DT, Stergiadis S. Effect of dietary protein source and Saccharina latissima on nutritional and safety characteristics of milk. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38661233 DOI: 10.1002/jsfa.13556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 04/11/2024] [Accepted: 04/20/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND Wheat distillers' grains (WDG) and seaweeds are recommended as alternative protein sources and enteric methane mitigators in dairy cow diets, respectively, but little is known about their impact on milk quality and safety. In the present study, 16 cows in four 4 × 4 Latin squares were fed isonitrogenous diets (50:50 forage:concentrate ratio), with rapeseed meal (RSM)-based or WDG-based concentrate (230 and 205 g kg-1 dry matter) and supplemented with or without Saccharina latissima. RESULTS Replacement of RSM with WDG enhanced milk nutritional profile by decreasing milk atherogenicity (P = 0.002) and thrombogenicity (P = 0.019) indices and the concentrations of the nutritionally undesirable saturated fatty acids - specifically, lauric (P = 0.045), myristic (P = 0.022) and palmitic (P = 0.007) acids. It also increased milk concentrations of the nutritionally beneficial vaccenic (P < 0.001), oleic (P = 0.030), linoleic (P < 0.001), rumenic (P < 0.001) and α-linolenic (P = 0.012) acids, and total monounsaturated (P = 0.044), polyunsaturated (P < 0.001) and n-6 (P < 0.001) fatty acids. Feeding Saccharina latissima at 35.7 g per cow per day did not affect the nutritionally relevant milk fatty acids or pose any risk on milk safety, as bromoform concentrations in milk were negligible and unaffected by the dietary treatments. However, it slightly reduced milk concentrations of pantothenate. CONCLUSION Feeding WDG to dairy cows improved milk fatty acid profiles, by increasing the concentrations of nutritionally beneficial fatty acids and reducing the concentration of nutritionally undesirable saturated fatty acids, while feeding seaweed slightly reduced pantothenate concentrations. However, when considering the current average milk intakes in the population, the milk compositional differences between treatments in this study appear relatively small to have an effect on human health. © 2024 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Bing Wang
- College of Animal Science and Technology, State Key Laboratory of Animal Nutrition and Feeding, China Agricultural University, Beijing, PR China
- School of Agriculture, Policy and Development, Department of Animal Sciences, University of Reading, Reading, UK
| | - Sabrina Ormston
- School of Agriculture, Policy and Development, Department of Animal Sciences, University of Reading, Reading, UK
| | - Natalia Płatosz
- School of Agriculture, Policy and Development, Department of Animal Sciences, University of Reading, Reading, UK
- Polish Academy of Sciences, Institute of Animal Reproduction and Food Research, Olsztyn, Poland
| | - Jane K Parker
- Department of Food and Nutritional Sciences, University of Reading, Reading, UK
| | - Nanbing Qin
- School of Agriculture, Policy and Development, Department of Animal Sciences, University of Reading, Reading, UK
| | - David J Humphries
- School of Agriculture, Policy and Development, Department of Animal Sciences, University of Reading, Reading, UK
| | | | | | - Darren T Juniper
- School of Agriculture, Policy and Development, Department of Animal Sciences, University of Reading, Reading, UK
| | - Sokratis Stergiadis
- School of Agriculture, Policy and Development, Department of Animal Sciences, University of Reading, Reading, UK
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Mota CSC, Maia MRG, Valente IM, Cabrita ARJ, Fonseca AJM. Ruminal inocula with distinct fermentation profiles differentially affect the in vitro fermentation pattern of a commercial algal blend. Front Vet Sci 2024; 11:1346683. [PMID: 38528874 PMCID: PMC10962210 DOI: 10.3389/fvets.2024.1346683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 02/12/2024] [Indexed: 03/27/2024] Open
Abstract
The in vitro rumen batch technique is widely used for screening novel feed sources; however, it remains unclear to what extent the in vitro fermentability of non-conventional feed sources is affected by non-adapted ruminal inocula. Thus, in this study, we evaluated the effects of distinct ruminal inocula on the in vitro fermentation parameters of a sustainable non-conventional feed, a commercially available algal blend composed of microalgae (Chlorella vulgaris and Nannochloropsis oceanica) and seaweeds (Ulva sp. and Gracilaria gracilis). First, four late-lactation Holstein cows were fed four forage-based diets varying only in the proportions of basal forage (100% corn silage, 70% corn silage and 30% haylage, 30% corn silage and 70% haylage, and 100% haylage) in a 4 × 4 Latin square design with the last square omitted. After 3 weeks of adaptation, haylage-based diets resulted in ruminal fermentation parameters distinct from those promoted by corn silage-based diets, as reflected in increased pH, ammonia-N contents, and acetate proportions. Individual ruminal fluids derived from each of the four diets were further used as inocula in in vitro incubations. Here, a 1:1 mixture of corn silage and haylage was supplemented with 0, 5, 10, or 15% algal blend and incubated with each inoculum for 24 h in a 4 × 4 factorial design. Total gas and methane production decreased with inocula from cows fed haylage-based diets and with increasing algal blend supplementation levels. The fermentation pH increased and the ammonia-N contents decreased with inocula from cows fed haylage-based diets; however, these parameters were not affected by algal blend inclusion levels. The interaction between the ruminal inoculum source and the algal blend supplementation level affected the total volatile fatty acids (VFA) and the proportions of most individual VFA. Total VFA production decreased with increasing algal supplementation levels, particularly with inocula from cows fed 30% corn silage and 70% haylage; the acetate, propionate, and valerate proportions were only affected by algal blend levels under incubation with 100% corn silage inocula. Overall, our findings highlight the importance of the ruminal inoculum source when assessing the fermentability of non-conventional feed as well as the potential of the algal blend as a natural modulator of ruminal fermentation.
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Affiliation(s)
- Cátia S. C. Mota
- REQUIMTE, LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Porto, Portugal
| | - Margarida R. G. Maia
- REQUIMTE, LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Porto, Portugal
| | - Inês M. Valente
- REQUIMTE, LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Porto, Portugal
- REQUIMTE, LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Porto, Portugal
| | - Ana R. J. Cabrita
- REQUIMTE, LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Porto, Portugal
| | - António J. M. Fonseca
- REQUIMTE, LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Porto, Portugal
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Newton EE, Theodoridou K, Terré M, Huws S, Ray P, Reynolds CK, Prat N, Sabrià D, Stergiadis S. Effect of dietary seaweed (Ascophyllum nodosum) supplementation on milk mineral concentrations, transfer efficiency, and hematological parameters in lactating Holstein cows. J Dairy Sci 2023; 106:6880-6893. [PMID: 37210373 PMCID: PMC10570403 DOI: 10.3168/jds.2022-23074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 04/17/2023] [Indexed: 05/22/2023]
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.
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Affiliation(s)
- E E Newton
- School of Agriculture, Policy and Development, University of Reading, Reading, RG6 6EU, United Kingdom
| | - K Theodoridou
- Queen's University Belfast, Institute for Global Food Security, Belfast, BT9 5DL, United Kingdom.
| | - M Terré
- Department of Ruminant Production, Institute de Recerca i Tecnologia Agroalimentàries, Caldes de Montbui, 08140, Spain
| | - S Huws
- Queen's University Belfast, Institute for Global Food Security, Belfast, BT9 5DL, United Kingdom
| | - P Ray
- The Nature Conservancy, Arlington, VA 22203
| | - C K Reynolds
- School of Agriculture, Policy and Development, University of Reading, Reading, RG6 6EU, United Kingdom
| | - N Prat
- Department of Ruminant Production, Institute de Recerca i Tecnologia Agroalimentàries, Caldes de Montbui, 08140, Spain
| | - D Sabrià
- Department of Ruminant Production, Institute de Recerca i Tecnologia Agroalimentàries, Caldes de Montbui, 08140, Spain
| | - S Stergiadis
- School of Agriculture, Policy and Development, University of Reading, Reading, RG6 6EU, United Kingdom.
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Muizelaar W, van Duinkerken G, Khan Z, Dijkstra J. Evaluation of 3 northwest European seaweed species on enteric methane production and lactational performance of Holstein-Friesian dairy cows. J Dairy Sci 2023:S0022-0302(23)00270-9. [PMID: 37225576 DOI: 10.3168/jds.2022-22749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 01/23/2023] [Indexed: 05/26/2023]
Abstract
Seaweeds have been studied for their ability to reduce enteric methane emissions of ruminants when fed as a feed supplement. In vivo research with dairy cattle is mainly limited to the seaweed species Ascophyllum nodosum and Asparagopsis taxiformis, whereas in vitro gas production research covers a broader range of brown, red, and green seaweed species from different regions. The objective of the present study was to determine the effect of Chondrus crispus (Rhodophyta), Saccharina latissima (Phaeophyta), and Fucus serratus (Phaeophyta), 3 common northwest European seaweeds, on enteric methane production and lactational performance of dairy cattle. Sixty-four Holstein-Friesian dairy cattle (16 primiparous, 48 multiparous) averaging (mean ± standard deviation) 91 ± 22.6 d in milk and 35.4 ± 8.13 kg/d fat- and protein-corrected milk yield (FPCM) were randomly assigned to 1 of 4 treatments in a randomized complete block design. Cows were fed a partial mixed ration [54.2% grass silage, 20.8% corn silage, and 25.0% concentrate; dry matter (DM) basis] with additional concentrate bait in the milking parlor and the GreenFeed system (C-Lock Inc.). The 4 treatments consisted of a control diet without seaweed supplement (CON), or CON supplemented with 150 g/d (fresh weight of dried seaweed) of either C. crispus (CC), S. latissima (SL), or a 50/50 mix (DM basis) of F. serratus and S. latissima. Milk yield (28.7 vs. 27.5 kg/d, respectively), fat- and protein-corrected milk (FPCM) yield (31.4 vs. 30.2 kg/d, respectively), milk lactose content (4.57 vs. 4.52%, respectively), and lactose yield (1,308 vs. 1,246 g/d, respectively) increased for SL compared with CON. Milk protein content was lower for SL compared with the other treatments. Milk fat and protein contents; yields of fat, protein, lactose, and FPCM; feed efficiency; milk nitrogen efficiency; and somatic cell count did not differ between CON and the other treatments. Depending on week of experiment, milk urea content was higher for SL compared with CON and CC. No effects were observed of the treatments compared with CON for DM intake, number of visits to the GreenFeed, or gas emission (production, yield, or intensity) of CO2, CH4, and H2. In conclusion, the seaweeds evaluated did not decrease enteric CH4 emissions and did not negatively affect feed intake and lactational performance of dairy cattle. Milk yield, FPCM yield, milk lactose content, and lactose yield increased, and milk protein content decreased, with S. latissima.
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Affiliation(s)
- W Muizelaar
- Wageningen Livestock Research, Wageningen University & Research, PO Box 338, 6700 AH Wageningen, the Netherlands; Animal Nutrition Group, Wageningen University & Research, PO Box 338, 6700 AH Wageningen, the Netherlands.
| | - G van Duinkerken
- Wageningen Livestock Research, Wageningen University & Research, PO Box 338, 6700 AH Wageningen, the Netherlands
| | - Z Khan
- Foundation BlueO2, Oude Haagweg 679, 2552 GM Den Haag, the Netherlands
| | - J Dijkstra
- Animal Nutrition Group, Wageningen University & Research, PO Box 338, 6700 AH Wageningen, the Netherlands
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Qin N, Pétursdóttir ÁH, Humphries DJ, Desnica N, Newton EE, Vanhatalo A, Halmemies-Beauchet-Filleau A, Bell L, Givens DI, Juniper DT, Gunnlaugsdóttir H, Stergiadis S. Mineral concentrations in milk from cows fed seaweed (Saccharina latissima) under different basal protein supplementation. Food Chem 2023; 403:134315. [PMID: 36183466 DOI: 10.1016/j.foodchem.2022.134315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 08/31/2022] [Accepted: 09/15/2022] [Indexed: 11/18/2022]
Abstract
Sixteen multiparous Holstein cows in four blocks of 4 × 4 Latin square over 4-week experimental periods were used to study the effects of seaweed (Saccharina latissima) supplement (with/without) and protein source (rapeseed meal (RSM)/wheat distiller's grain (WDG)) on milk mineral concentrations. Dietary treatments did not affect milk production and basic composition. Feeding seaweed slightly decreased milk Ca and Cu concentrations; whilst increased (by 3.3-fold) milk iodine (I) concentration, due to a higher dietary I supply. Substitution of WDG with RSM increased feed-to-milk transfer of Ca, Na, and Se and decreased that of Mg, P, Fe, and Mn; but only reduced milk Mn and I concentrations (the latter by 27 % as a potential result of increased glucosinolate intake). Seaweed supplement can improve milk I content when cows' I supply/availability is limited, but care should be taken to avoid excess milk I contents that may pose nutritional risks for young children.
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Affiliation(s)
- Nanbing Qin
- Department of Animal Sciences, School of Agriculture, Policy and Development, University of Reading, PO Box 237, Earley Gate, Reading RG6 6EU, United Kingdom
| | | | - David J Humphries
- Centre for Dairy Research, School of Agriculture, Policy and Development, University of Reading, Hall Farm House Church Ln, Reading RG2 9HX, United Kingdom
| | | | - Eric E Newton
- Department of Animal Sciences, School of Agriculture, Policy and Development, University of Reading, PO Box 237, Earley Gate, Reading RG6 6EU, United Kingdom
| | - Aila Vanhatalo
- Department of Agricultural Sciences, University of Helsinki, FI-00014, Finland
| | | | - Luke Bell
- Department of Crop Sciences, School of Agriculture, Policy and Development, University of Reading, PO Box 237, Earley Gate, Reading RG6 6EU, United Kingdom
| | - D Ian Givens
- Institute for Food, Nutrition and Health, University of Reading, PO Box 237, Earley Gate, Reading RG6 6EU, United Kingdom
| | - Darren T Juniper
- Department of Animal Sciences, School of Agriculture, Policy and Development, University of Reading, PO Box 237, Earley Gate, Reading RG6 6EU, United Kingdom
| | - Helga Gunnlaugsdóttir
- Matís ltd, Vínlandsleið 12, Reykjavík 113, Iceland; Faculty of Food Science and Nutrition, School of Health Sciences, University Iceland, 102 Reykjavik, Iceland
| | - Sokratis Stergiadis
- Department of Animal Sciences, School of Agriculture, Policy and Development, University of Reading, PO Box 237, Earley Gate, Reading RG6 6EU, United Kingdom.
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7
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Effects of various macroalgae species on methane production, rumen fermentation, and ruminant production: A meta-analysis from in vitro and in vivo experiments. Anim Feed Sci Technol 2022. [DOI: 10.1016/j.anifeedsci.2022.115503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Newton EE, Lamminen M, Ray P, Mackenzie AM, Reynolds CK, Lee MRF, Halmemies-Beauchet-Filleau A, Vanhatalo A, Stergiadis S. Macromineral and trace element concentrations in milk from Finnish Ayrshire cows fed microalgae (Spirulina platensis) and rapeseed (Brassica napus). J Dairy Sci 2022; 105:8866-8878. [PMID: 36175232 DOI: 10.3168/jds.2022-22050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 07/08/2022] [Indexed: 11/19/2022]
Abstract
Given the lack of research regarding the effect of microalgal supplementation in dairy cows on milk mineral concentrations, this study investigated the effect of feeding different protein supplements in dairy cow diets on milk, feces, and blood plasma mineral concentrations, associated milk and blood plasma transfer efficiencies, and apparent digestibility. Lactating Finnish Ayrshire cows (n = 8) were allocated at the start of the trial to 4 diets used in a replicated 4 × 4 Latin square design experiment: (1) control diet (CON), (2) a pelleted rapeseed supplement (RSS; 2,550 g/d), (3) a mixture of rapeseed and Spirulina platensis (RSAL; 1,280 g of RSS + 570 g of S. platensis per day), and (4) S. platensis (ALG; 1,130 g of S. platensis per day). In each of the 4 experimental periods, a 2-wk adaptation to the experimental diets was followed by a 7-d sampling and measurement period. Feed samples were composited per measurement period, milk, and feed samples (4 consecutive days; d 17-20), and blood plasma samples (d 21) were composited for each cow period (n = 32). Data were statistically analyzed using a linear mixed effects model with diet, period within square, square and their interaction as fixed factors, and cow within square as a random factor. Cows fed ALG were not significantly different in their milk or blood plasma mineral concentrations compared with CON, although feeding ALG increased fecal concentrations of macrominerals (Ca and Mg) and trace elements (Co, Cu, Fe, I, Mn, and Zn), and reduced their apparent digestibility, compared with CON. When compared with CON and ALG, milk from cows fed RSAL and RSS had lower milk I concentrations (-69.6 and -102.7 μg/kg of milk, respectively), but total plasma I concentrations were not affected significantly. Feeding S. platensis to dairy cows did not affect mineral concentrations in cows' blood or milk, but care should be taken when rapeseed is fed to avoid reducing milk I concentrations which may in turn reduce consumers' I intake from milk and dairy products.
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Affiliation(s)
- Eric E Newton
- School of Agriculture, Policy, and Development, University of Reading, Earley Gate, PO Box 237, RG6 6EU, Reading, United Kingdom
| | - Marjukka Lamminen
- Department of Agricultural Sciences, University of Helsinki, PO Box 28, FI-00014 Helsinki, Finland.
| | - Partha Ray
- School of Agriculture, Policy, and Development, University of Reading, Earley Gate, PO Box 237, RG6 6EU, Reading, United Kingdom; The Nature Conservancy, 4245 North Fairfax Drive, Suite 100, Arlington, VA 22203
| | - Alexander M Mackenzie
- Department of Agriculture and the Environment, Harper Adams University, Edgmond, Shropshire, TF10 8NB, Newport, United Kingdom
| | - Christopher K Reynolds
- School of Agriculture, Policy, and Development, University of Reading, Earley Gate, PO Box 237, RG6 6EU, Reading, United Kingdom
| | - Michael R F Lee
- Department of Agriculture and the Environment, Harper Adams University, Edgmond, Shropshire, TF10 8NB, Newport, United Kingdom
| | | | - Aila Vanhatalo
- Department of Agricultural Sciences, University of Helsinki, PO Box 28, FI-00014 Helsinki, Finland
| | - Sokratis Stergiadis
- School of Agriculture, Policy, and Development, University of Reading, Earley Gate, PO Box 237, RG6 6EU, Reading, United Kingdom.
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9
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Künzel S, Yergaliyev T, Wild KJ, Philippi H, Petursdottir AH, Gunnlaugsdottir H, Reynolds CK, Humphries DJ, Camarinha-Silva A, Rodehutscord M. Methane Reduction Potential of Brown Seaweeds and Their Influence on Nutrient Degradation and Microbiota Composition in a Rumen Simulation Technique. Front Microbiol 2022; 13:889618. [PMID: 35836418 PMCID: PMC9273974 DOI: 10.3389/fmicb.2022.889618] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 05/17/2022] [Indexed: 12/30/2022] Open
Abstract
This study aimed to investigate the effects of two brown Icelandic seaweed samples (Ascophyllum nodosum and Fucus vesiculosus) on in vitro methane production, nutrient degradation, and microbiota composition. A total mixed ration (TMR) was incubated alone as control or together with each seaweed at two inclusion levels (2.5 and 5.0% on a dry matter basis) in a long-term rumen simulation technique (Rusitec) experiment. The incubation period lasted 14 days, with 7 days of adaptation and sampling. The methane concentration of total gas produced was decreased at the 5% inclusion level of A. nodosum and F. vesiculosus by 8.9 and 3.6%, respectively (P < 0.001). The total gas production was reduced by all seaweeds, with a greater reduction for the 5% seaweed inclusion level (P < 0.001). Feed nutrient degradation and the production of volatile fatty acids and ammonia in the effluent were also reduced, mostly with a bigger effect for the 5% inclusion level of both seaweeds, indicating a reduced overall fermentation (all P ≤ 0.001). Microbiota composition was analyzed by sequencing 16S rRNA amplicons from the rumen content of the donor cows, fermenter liquid and effluent at days 7 and 13, and feed residues at day 13. Relative abundances of the most abundant methanogens varied between the rumen fluid used for the start of incubation and the samples taken at day 7, as well as between days 7 and 13 in both fermenter liquid and effluent (P < 0.05). According to the differential abundance analysis with q2-ALDEx2, in effluent and fermenter liquid samples, archaeal and bacterial amplicon sequence variants were separated into two groups (P < 0.05). One was more abundant in samples taken from the treatment without seaweed supplementation, while the other one prevailed in seaweed supplemented treatments. This group also showed a dose-dependent response to seaweed inclusion, with a greater number of differentially abundant members between a 5% inclusion level and unsupplemented samples than between a 2.5% inclusion level and TMR. Although supplementation of both seaweeds at a 5% inclusion level decreased methane concentration in the total gas due to the high iodine content in the seaweeds tested, the application of practical feeding should be done with caution.
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Affiliation(s)
- Susanne Künzel
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
- Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany
| | - Timur Yergaliyev
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
- Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany
| | - Katharina J. Wild
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
- Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany
| | - Hanna Philippi
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
- Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany
| | | | - Helga Gunnlaugsdottir
- Matís, Reykjavík, Iceland
- Faculty of Food Science and Nutrition, School of Health Sciences, University of Iceland, Reykjavík, Iceland
| | - Chris K. Reynolds
- School of Agriculture, Policy and Development, University of Reading, Reading, United Kingdom
| | - David J. Humphries
- School of Agriculture, Policy and Development, University of Reading, Reading, United Kingdom
| | - Amélia Camarinha-Silva
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
- Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany
| | - Markus Rodehutscord
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
- Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany
- *Correspondence: Markus Rodehutscord,
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Witard OC, Bath SC, Dineva M, Sellem L, Mulet-Cabero AI, van Dongen LH, Zheng JS, Valenzuela C, Smeuninx B. Dairy as a Source of Iodine and Protein in the UK: Implications for Human Health Across the Life Course, and Future Policy and Research. Front Nutr 2022; 9:800559. [PMID: 35223949 PMCID: PMC8866650 DOI: 10.3389/fnut.2022.800559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 01/11/2022] [Indexed: 12/03/2022] Open
Abstract
This narrative review summarizes key concepts in dairy nutrition for supporting human health throughout the life course. Milk and dairy products have been a staple component of our diet for thousands of years and provide a wide range of important nutrients that are otherwise difficult to obtain from dairy-free diets. In this review, we provide a broad perspective on the nutritional roles of iodine and dairy protein in supporting human health during pregnancy and early life, childhood and adolescence, mid- and later-life. New methodologies to identify biomarkers of dairy intake via high-throughput mass spectrometry are discussed, and new concepts such as the role of the food matrix in dairy nutrition are introduced. Finally, future policy and research related to the consumption of dairy and non-dairy alternatives for health are discussed with a view to improving nutritional status across the lifespan.
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Affiliation(s)
- Oliver C. Witard
- Centre for Human and Applied Physiological Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- *Correspondence: Oliver C. Witard
| | - Sarah C. Bath
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Mariana Dineva
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Laury Sellem
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Science, University of Reading, Reading, United Kingdom
| | - Ana-Isabel Mulet-Cabero
- Food Innovation and Health, Quadram Institute Bioscience, Norwich Research Park, Norwich, United Kingdom
| | - Laura H. van Dongen
- Division of Human Nutrition, Wageningen University and Research Centre, Wageningen, Netherlands
| | - Ju-Sheng Zheng
- School of Life Sciences, Westlake University, Hangzhou, China
| | - Carina Valenzuela
- Faculty of Medicine, School of Human Development and Health, University of Southampton, Southampton, United Kingdom
| | - Benoit Smeuninx
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
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