Chemical and physicochemical characterisation of various horse feed ingredients

Christine Brøkner; Knud Erik Bach Knudsen; Ibrahim Karaman; Karin Eybye; Anne-Helene Tauson

doi:10.1016/j.anifeedsci.2012.06.005

Chemical and physicochemical characterisation of various horse feed ingredients

Christine Brøkner, Knud Erik Bach Knudsen, Ibrahim Karaman, Karin Eybye, Anne-Helene Tauson

12 Citations (Scopus)

Abstract

There is an increasing need for identifying energy dense fibre rich feed ingredients, because starch has shown to cause detrimental health problems in sports horses. This study aimed at evaluating feeds considered to be suitable for horses by use of comprehensive carbohydrate analytical methods. Eighteen feeds of diverse botanical origin ranging from apple pulp, root crops, cereal grains and roughages were analysed for dry matter, ash, crude protein, fat, carbohydrates and lignin. Carbohydrates were analysed for sugar, starch, fructans, oligosaccharides and non-starch polysaccharides (NSP) using enzymatic-chemical methods and lignin by gravimetry. The results for total dietary fibre (DF) were compared with conventional crude fibre (CF) and neutral detergent fibre (aNDFom) methods. The physicochemical properties were quantified based on swelling and water binding capacity (WBC). Between 755 g and 970 g/kg DM was detected. The highest total sugar content was measured in root crops with 803 g/kg DM in raw sugar beet followed by 581 g/kg DM in carrots. The starch content ranged between 343 g/kg DM and 754 g/kg DM in cereal grains. The DF method detected (P = 0.04) more NSP as compared to the aNDFom and CF methods. The greatest difference between the DF and aNDFom methods was found in root crops and apple pulp in which the soluble non-cellulosic polysaccharides (S-NCP) fraction made up 350–581 g/kg of total NSP. The physicochemical properties were compared to fibre content and were associated to WBC (P = 0.04). The correlation ranged from 0.52 to 0.53 for WBC and from 0.03 to 0.16 for swelling. The S-NCP fraction is lost in the aNDFom and CF methods due to solubilisation, which explains the higher recovery of total NSP by the DF method. This illustrates that a feed's potential as a fibre source may be underestimated depending on the analytical method. Quantifying the soluble NCP fraction is beneficial as it has been shown to have health beneficial properties and contributes to the total energy supply. These results suggest that the DF method should be used when evaluating feeds for horses.

Original language	English
Journal	Animal Feed Science and Technology
Volume	177
Issue number	1-2
Pages (from-to)	86-97
Number of pages	12
ISSN	0377-8401
DOIs	https://doi.org/10.1016/j.anifeedsci.2012.06.005
Publication status	Published - 11 Oct 2012

Keywords

Former LIFE faculty

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10.1016/j.anifeedsci.2012.06.005

Cite this

@article{284192b854fb418e9fd731c5d0502e3c,

title = "Chemical and physicochemical characterisation of various horse feed ingredients",

abstract = "There is an increasing need for identifying energy dense fibre rich feed ingredients, because starch has shown to cause detrimental health problems in sports horses. This study aimed at evaluating feeds considered to be suitable for horses by use of comprehensive carbohydrate analytical methods. Eighteen feeds of diverse botanical origin ranging from apple pulp, root crops, cereal grains and roughages were analysed for dry matter, ash, crude protein, fat, carbohydrates and lignin. Carbohydrates were analysed for sugar, starch, fructans, oligosaccharides and non-starch polysaccharides (NSP) using enzymatic-chemical methods and lignin by gravimetry. The results for total dietary fibre (DF) were compared with conventional crude fibre (CF) and neutral detergent fibre (aNDFom) methods. The physicochemical properties were quantified based on swelling and water binding capacity (WBC). Between 755 g and 970 g/kg DM was detected. The highest total sugar content was measured in root crops with 803 g/kg DM in raw sugar beet followed by 581 g/kg DM in carrots. The starch content ranged between 343 g/kg DM and 754 g/kg DM in cereal grains. The DF method detected (P = 0.04) more NSP as compared to the aNDFom and CF methods. The greatest difference between the DF and aNDFom methods was found in root crops and apple pulp in which the soluble non-cellulosic polysaccharides (S-NCP) fraction made up 350–581 g/kg of total NSP. The physicochemical properties were compared to fibre content and were associated to WBC (P = 0.04). The correlation ranged from 0.52 to 0.53 for WBC and from 0.03 to 0.16 for swelling. The S-NCP fraction is lost in the aNDFom and CF methods due to solubilisation, which explains the higher recovery of total NSP by the DF method. This illustrates that a feed's potential as a fibre source may be underestimated depending on the analytical method. Quantifying the soluble NCP fraction is beneficial as it has been shown to have health beneficial properties and contributes to the total energy supply. These results suggest that the DF method should be used when evaluating feeds for horses.",

keywords = "Former LIFE faculty, Dietary fibre, Crude fibre, aNDForm, Swelling, Horse",

author = "Christine Br{\o}kner and Knudsen, {Knud Erik Bach} and Ibrahim Karaman and Karin Eybye and Anne-Helene Tauson",

year = "2012",

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doi = "10.1016/j.anifeedsci.2012.06.005",

language = "English",

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T1 - Chemical and physicochemical characterisation of various horse feed ingredients

AU - Brøkner, Christine

AU - Knudsen, Knud Erik Bach

AU - Karaman, Ibrahim

AU - Eybye, Karin

AU - Tauson, Anne-Helene

PY - 2012/10/11

Y1 - 2012/10/11

N2 - There is an increasing need for identifying energy dense fibre rich feed ingredients, because starch has shown to cause detrimental health problems in sports horses. This study aimed at evaluating feeds considered to be suitable for horses by use of comprehensive carbohydrate analytical methods. Eighteen feeds of diverse botanical origin ranging from apple pulp, root crops, cereal grains and roughages were analysed for dry matter, ash, crude protein, fat, carbohydrates and lignin. Carbohydrates were analysed for sugar, starch, fructans, oligosaccharides and non-starch polysaccharides (NSP) using enzymatic-chemical methods and lignin by gravimetry. The results for total dietary fibre (DF) were compared with conventional crude fibre (CF) and neutral detergent fibre (aNDFom) methods. The physicochemical properties were quantified based on swelling and water binding capacity (WBC). Between 755 g and 970 g/kg DM was detected. The highest total sugar content was measured in root crops with 803 g/kg DM in raw sugar beet followed by 581 g/kg DM in carrots. The starch content ranged between 343 g/kg DM and 754 g/kg DM in cereal grains. The DF method detected (P = 0.04) more NSP as compared to the aNDFom and CF methods. The greatest difference between the DF and aNDFom methods was found in root crops and apple pulp in which the soluble non-cellulosic polysaccharides (S-NCP) fraction made up 350–581 g/kg of total NSP. The physicochemical properties were compared to fibre content and were associated to WBC (P = 0.04). The correlation ranged from 0.52 to 0.53 for WBC and from 0.03 to 0.16 for swelling. The S-NCP fraction is lost in the aNDFom and CF methods due to solubilisation, which explains the higher recovery of total NSP by the DF method. This illustrates that a feed's potential as a fibre source may be underestimated depending on the analytical method. Quantifying the soluble NCP fraction is beneficial as it has been shown to have health beneficial properties and contributes to the total energy supply. These results suggest that the DF method should be used when evaluating feeds for horses.

AB - There is an increasing need for identifying energy dense fibre rich feed ingredients, because starch has shown to cause detrimental health problems in sports horses. This study aimed at evaluating feeds considered to be suitable for horses by use of comprehensive carbohydrate analytical methods. Eighteen feeds of diverse botanical origin ranging from apple pulp, root crops, cereal grains and roughages were analysed for dry matter, ash, crude protein, fat, carbohydrates and lignin. Carbohydrates were analysed for sugar, starch, fructans, oligosaccharides and non-starch polysaccharides (NSP) using enzymatic-chemical methods and lignin by gravimetry. The results for total dietary fibre (DF) were compared with conventional crude fibre (CF) and neutral detergent fibre (aNDFom) methods. The physicochemical properties were quantified based on swelling and water binding capacity (WBC). Between 755 g and 970 g/kg DM was detected. The highest total sugar content was measured in root crops with 803 g/kg DM in raw sugar beet followed by 581 g/kg DM in carrots. The starch content ranged between 343 g/kg DM and 754 g/kg DM in cereal grains. The DF method detected (P = 0.04) more NSP as compared to the aNDFom and CF methods. The greatest difference between the DF and aNDFom methods was found in root crops and apple pulp in which the soluble non-cellulosic polysaccharides (S-NCP) fraction made up 350–581 g/kg of total NSP. The physicochemical properties were compared to fibre content and were associated to WBC (P = 0.04). The correlation ranged from 0.52 to 0.53 for WBC and from 0.03 to 0.16 for swelling. The S-NCP fraction is lost in the aNDFom and CF methods due to solubilisation, which explains the higher recovery of total NSP by the DF method. This illustrates that a feed's potential as a fibre source may be underestimated depending on the analytical method. Quantifying the soluble NCP fraction is beneficial as it has been shown to have health beneficial properties and contributes to the total energy supply. These results suggest that the DF method should be used when evaluating feeds for horses.

KW - Former LIFE faculty

KW - Dietary fibre

KW - Crude fibre

KW - aNDForm

KW - Swelling

KW - Horse

U2 - 10.1016/j.anifeedsci.2012.06.005

DO - 10.1016/j.anifeedsci.2012.06.005

M3 - Journal article

SN - 0377-8401

VL - 177

SP - 86

EP - 97

JO - Animal Feed Science and Technology

JF - Animal Feed Science and Technology

IS - 1-2

ER -