The Mineral Composition of Wild-Type and Cultivated Varieties of Pasture Species

被引:16
作者
Darch, Tegan [1 ]
McGrath, Steve P. [2 ]
Lee, Michael R. F. [1 ,3 ]
Beaumont, Deborah A. [1 ]
Blackwell, Martin S. A. [1 ]
Horrocks, Claire A. [1 ]
Evans, Jessica [4 ]
Storkey, Jonathan [2 ]
机构
[1] Rothamsted Res, Sustainable Agr Sci, Okehampton EX20 2SB, Devon, England
[2] Rothamsted Res, Sustainable Agr Sci, Harpenden AL5 2JQ, Herts, England
[3] Univ Bristol, Bristol Vet Sch, Langford BS40 5DU, Somerset, England
[4] Rothamsted Res, Computat & Analyt Sci, Harpenden AL5 2JQ, Herts, England
来源
AGRONOMY-BASEL | 2020年 / 10卷 / 10期
基金
英国生物技术与生命科学研究理事会; 欧盟地平线“2020”;
关键词
micronutrients; trace elements; antagonism; livestock intake; multispecies; multifunctional; sward; forb; legume; grass; LOLIUM-PERENNE L; MICRONUTRIENT CONCENTRATIONS; DAIRY-COWS; GRASSLAND; NITROGEN; YIELD; FERTILIZATION; NUTRITION; EXCRETION; SELENIUM;
D O I
10.3390/agronomy10101463
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Mineral deficiencies in livestock are often prevented by using prophylactic supplementation, which is imprecise and inefficient. Instead, the trend for increased species diversity in swards is an opportunity to improve mineral concentrations in the basal diet. Currently, there are limited data on the mineral concentrations of different species and botanical groups, particularly for I and Se, which are among the most deficient minerals in livestock diets. We grew 21 pasture species, including some cultivar/wild type comparisons, of grasses, legumes and forbs, as single species stands in a pot study in a standard growth medium. Herbage concentrations of Co, Cu, I, Mn, Se, Zn, S, Mo and Fe showed no consistent differences between the wild and cultivated types. There were significant differences between botanical groups for many minerals tested. Forbs were highest in I and Se, grasses in Mn and legumes in Cu, Co, Zn and Fe. Comparing species concentrations to recommended livestock intakes, the forbs Achillea millefolium, Cichorium intybus and Plantago lanceolata, and the legumes Medicago lupulina, Trifolium hybridum and Lotus corniculatus, appear to be good sources of Co, Cu, I, Se and Zn. Further work is required to ensure these results are consistent in multispecies mixtures, in different soil types and in field trials.
引用
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页数:18
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