Mineral concentrations of fresh herbage from mixed grassland as influenced by botanical composition, harvest time and growth stage

•Models were established to estimate mineral concentrations of grassland herbage.•The concentrations are influenced by botanical composition, harvest and growth.•The concentrations decrease with increasing prevalence of grasses.•The concentrations are lower in the first seasonal harvest than in subs...

Full description

Saved in:
Bibliographic Details
Published in:Animal feed science and technology 2016-09, Vol.219, p.226-233
Main Authors: Schlegel, P., Wyss, U., Arrigo, Y., Hess, H.D.
Format: Article
Language:English
Subjects:
acid detergent fibre
ADFOM
aNDFOM
calcium
chlorine
cobalt
copper
crude protein
dry matter
Forage quality
Grass
Herbage
Herbivore
iron
magnesium
manganese
Mineral
neutral detergent fibre
phosphorus
potassium
selenium
sodium
Trace element
zinc
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•Models were established to estimate mineral concentrations of grassland herbage.•The concentrations are influenced by botanical composition, harvest and growth.•The concentrations decrease with increasing prevalence of grasses.•The concentrations are lower in the first seasonal harvest than in subsequent ones.•The concentrations, except Ca, decrease with increasing plant growth development. The mineral concentrations in herbage from mixed grassland are variable which lead to challenging situations for animal’s mineral supplementation. The aim of this study consisted in assessing macro and micro mineral concentrations in fresh herbage from mixed grassland, according to a classification method used for nutrients and nutritive values. This classification consists of six classes of botanical composition, two classes of harvest time and seven classes of growth stage. Two hundred and thirty six samples of fresh herbage from mixed grassland were collected from one experimental site during five seasons. The analysed mineral concentrations were modelled using botanical composition and harvest time as fixed effects and growth stage as linear and quadratic effects. Whereas the repeatability of the models for calcium (Ca), phosphorus (P), magnesium (Mg), potassium (K), sulphur (S) and copper (Cu) were similar to the ones for crude protein and fibre, the repeatability for sodium (Na), chlorine (Cl), iron (Fe) and manganese (Mn) were low. Cobalt (Co, 0.113±0.173mg/kg DM) and selenium (Se, 0.020±0.022mg/kg DM) concentrations were hardly detected. Except Fe, mineral concentrations were influenced (P
ISSN:0377-8401
1873-2216
DOI:10.1016/j.anifeedsci.2016.06.022