Abstract

This experiment was conducted to evaluate different microalgae species as protein supplements in the nutrition of lactating dairy cows in comparison to soya bean meal. Four multiparous lactating Finnish Ayrshire cows (112 days in milk) were used in a balanced 4 × 4 Latin square study. Cows were fed separately fixed amount of cereal-sugar beet pulp based concentrate (12.5 kg/d) and grass silage ad libitum. Experimental treatments consisted of four isonitrogenous protein supplements: soya bean meal (SOY), Spirulina platensis (SPI), Chlorella vulgaris (CHL) and a mixture of C. vulgaris and Nannochloropsis gaditana (1:1 on dry matter (DM) basis; CHL-NAN). The substitution of soya bean meal by microalgae did not affect the quantity of total DM intake (DMI), but changed the composition of DMI by decreasing the concentrate:forage ratio of the diet (P=0.054) owing to the poorer palatability of microalgae. Intake of methionine was increased (P<0.01) and that of histidine decreased (P<0.01) with microalgae diets compared to SOY, but no significant changes in arterial concentrations were observed. The digestibility of nutrients, milk or energy corrected milk (ECM) yield were not affected by dietary treatments. Though, owing to SPI, algae diets resulted in numerically +2.2 kg/d higher ECM yield than SOY. Microalgae diets tended to result in higher milk fat (P=0.073), arterial acetic acid (P=0.055) and non-esterified fatty acid (P=0.060) concentrations than SOY. Milk fat (P<0.05) and arterial acetic acid (P=0.010) concentrations were increased and milk fat yield tended to increase (P=0.098) on SPI compared to CHL and CHL-NAN. Urinary nitrogen excretion was also lower (P<0.05) for microalgae diets than for SOY. Microalgae diets resulted in higher secretion of Δ16:2 (P<0.05), cis-9, cis-12, cis-15 18:3 (α-linoleic acid; ALA) (P<0.05), cis-6, cis-9, cis-12 18:3 (P<0.05) and polyunsaturated fatty acids (PUFA) (P<0.05) in milk than SOY. Secretion of cis-5, cis-8, cis-11, cis-14, cis-17 20:5 (eicosapentaenoic acid; EPA) in milk tended to be higher on CHL and CHL-NAN than on SPI (P=0.060), and was higher on CHL-NAN than on CHL (P<0.05). Also the omega-6:omega-3 ratio was lower (P<0.05) for CHL-NAN than for CHL. The results suggest that microalgae are likely comparable protein feed to soya bean meal in dairy cow nutrition, especially if palatability of microalgae can be improved.
LanguageEnglish
JournalAnimal Feed Science and Technology
Volume247
Pages112-126
ISSN0377-8401
DOIs
Publication statusPublished - 2019
MoE publication typeA1 Journal article-refereed

Fields of Science

  • 412 Animal science, dairy science
  • Microalgae
  • Spirulina platensis
  • Chlorella vulgaris
  • Nannochloropsis gaditana
  • Soya bean meal
  • Dairy cow
  • Animal nutrition

Cite this

@article{16d9c99b86b24f4db2afbb627d74aba4,
title = "Different microalgae species as a substitutive protein feed for soya bean meal in grass silage based dairy cow diets",
abstract = "This experiment was conducted to evaluate different microalgae species as protein supplements in the nutrition of lactating dairy cows in comparison to soya bean meal. Four multiparous lactating Finnish Ayrshire cows (112 days in milk) were used in a balanced 4 × 4 Latin square study. Cows were fed separately fixed amount of cereal-sugar beet pulp based concentrate (12.5 kg/d) and grass silage ad libitum. Experimental treatments consisted of four isonitrogenous protein supplements: soya bean meal (SOY), Spirulina platensis (SPI), Chlorella vulgaris (CHL) and a mixture of C. vulgaris and Nannochloropsis gaditana (1:1 on dry matter (DM) basis; CHL-NAN). The substitution of soya bean meal by microalgae did not affect the quantity of total DM intake (DMI), but changed the composition of DMI by decreasing the concentrate:forage ratio of the diet (P=0.054) owing to the poorer palatability of microalgae. Intake of methionine was increased (P<0.01) and that of histidine decreased (P<0.01) with microalgae diets compared to SOY, but no significant changes in arterial concentrations were observed. The digestibility of nutrients, milk or energy corrected milk (ECM) yield were not affected by dietary treatments. Though, owing to SPI, algae diets resulted in numerically +2.2 kg/d higher ECM yield than SOY. Microalgae diets tended to result in higher milk fat (P=0.073), arterial acetic acid (P=0.055) and non-esterified fatty acid (P=0.060) concentrations than SOY. Milk fat (P<0.05) and arterial acetic acid (P=0.010) concentrations were increased and milk fat yield tended to increase (P=0.098) on SPI compared to CHL and CHL-NAN. Urinary nitrogen excretion was also lower (P<0.05) for microalgae diets than for SOY. Microalgae diets resulted in higher secretion of Δ16:2 (P<0.05), cis-9, cis-12, cis-15 18:3 (α-linoleic acid; ALA) (P<0.05), cis-6, cis-9, cis-12 18:3 (P<0.05) and polyunsaturated fatty acids (PUFA) (P<0.05) in milk than SOY. Secretion of cis-5, cis-8, cis-11, cis-14, cis-17 20:5 (eicosapentaenoic acid; EPA) in milk tended to be higher on CHL and CHL-NAN than on SPI (P=0.060), and was higher on CHL-NAN than on CHL (P<0.05). Also the omega-6:omega-3 ratio was lower (P<0.05) for CHL-NAN than for CHL. The results suggest that microalgae are likely comparable protein feed to soya bean meal in dairy cow nutrition, especially if palatability of microalgae can be improved.",
keywords = "412 Animal science, dairy science, Microalgae, Spirulina platensis, Chlorella vulgaris, Nannochloropsis gaditana, Soya bean meal, Dairy cow, Animal nutrition",
author = "Lamminen, {Marjukka Elina} and Halmemies-Beauchet-Filleau, {Anni Ilona Karoliina} and Kokkonen, {Tuomo Juhani} and Jaakkola, {Seija Liisa} and Vanhatalo, {Aila Orvokki}",
year = "2019",
doi = "10.1016/j.anifeedsci.2018.11.005",
language = "English",
volume = "247",
pages = "112--126",
journal = "Animal Feed Science and Technology",
issn = "0377-8401",
publisher = "Elsevier B. V.",

}

TY - JOUR

T1 - Different microalgae species as a substitutive protein feed for soya bean meal in grass silage based dairy cow diets

AU - Lamminen,Marjukka Elina

AU - Halmemies-Beauchet-Filleau,Anni Ilona Karoliina

AU - Kokkonen,Tuomo Juhani

AU - Jaakkola,Seija Liisa

AU - Vanhatalo,Aila Orvokki

PY - 2019

Y1 - 2019

N2 - This experiment was conducted to evaluate different microalgae species as protein supplements in the nutrition of lactating dairy cows in comparison to soya bean meal. Four multiparous lactating Finnish Ayrshire cows (112 days in milk) were used in a balanced 4 × 4 Latin square study. Cows were fed separately fixed amount of cereal-sugar beet pulp based concentrate (12.5 kg/d) and grass silage ad libitum. Experimental treatments consisted of four isonitrogenous protein supplements: soya bean meal (SOY), Spirulina platensis (SPI), Chlorella vulgaris (CHL) and a mixture of C. vulgaris and Nannochloropsis gaditana (1:1 on dry matter (DM) basis; CHL-NAN). The substitution of soya bean meal by microalgae did not affect the quantity of total DM intake (DMI), but changed the composition of DMI by decreasing the concentrate:forage ratio of the diet (P=0.054) owing to the poorer palatability of microalgae. Intake of methionine was increased (P<0.01) and that of histidine decreased (P<0.01) with microalgae diets compared to SOY, but no significant changes in arterial concentrations were observed. The digestibility of nutrients, milk or energy corrected milk (ECM) yield were not affected by dietary treatments. Though, owing to SPI, algae diets resulted in numerically +2.2 kg/d higher ECM yield than SOY. Microalgae diets tended to result in higher milk fat (P=0.073), arterial acetic acid (P=0.055) and non-esterified fatty acid (P=0.060) concentrations than SOY. Milk fat (P<0.05) and arterial acetic acid (P=0.010) concentrations were increased and milk fat yield tended to increase (P=0.098) on SPI compared to CHL and CHL-NAN. Urinary nitrogen excretion was also lower (P<0.05) for microalgae diets than for SOY. Microalgae diets resulted in higher secretion of Δ16:2 (P<0.05), cis-9, cis-12, cis-15 18:3 (α-linoleic acid; ALA) (P<0.05), cis-6, cis-9, cis-12 18:3 (P<0.05) and polyunsaturated fatty acids (PUFA) (P<0.05) in milk than SOY. Secretion of cis-5, cis-8, cis-11, cis-14, cis-17 20:5 (eicosapentaenoic acid; EPA) in milk tended to be higher on CHL and CHL-NAN than on SPI (P=0.060), and was higher on CHL-NAN than on CHL (P<0.05). Also the omega-6:omega-3 ratio was lower (P<0.05) for CHL-NAN than for CHL. The results suggest that microalgae are likely comparable protein feed to soya bean meal in dairy cow nutrition, especially if palatability of microalgae can be improved.

AB - This experiment was conducted to evaluate different microalgae species as protein supplements in the nutrition of lactating dairy cows in comparison to soya bean meal. Four multiparous lactating Finnish Ayrshire cows (112 days in milk) were used in a balanced 4 × 4 Latin square study. Cows were fed separately fixed amount of cereal-sugar beet pulp based concentrate (12.5 kg/d) and grass silage ad libitum. Experimental treatments consisted of four isonitrogenous protein supplements: soya bean meal (SOY), Spirulina platensis (SPI), Chlorella vulgaris (CHL) and a mixture of C. vulgaris and Nannochloropsis gaditana (1:1 on dry matter (DM) basis; CHL-NAN). The substitution of soya bean meal by microalgae did not affect the quantity of total DM intake (DMI), but changed the composition of DMI by decreasing the concentrate:forage ratio of the diet (P=0.054) owing to the poorer palatability of microalgae. Intake of methionine was increased (P<0.01) and that of histidine decreased (P<0.01) with microalgae diets compared to SOY, but no significant changes in arterial concentrations were observed. The digestibility of nutrients, milk or energy corrected milk (ECM) yield were not affected by dietary treatments. Though, owing to SPI, algae diets resulted in numerically +2.2 kg/d higher ECM yield than SOY. Microalgae diets tended to result in higher milk fat (P=0.073), arterial acetic acid (P=0.055) and non-esterified fatty acid (P=0.060) concentrations than SOY. Milk fat (P<0.05) and arterial acetic acid (P=0.010) concentrations were increased and milk fat yield tended to increase (P=0.098) on SPI compared to CHL and CHL-NAN. Urinary nitrogen excretion was also lower (P<0.05) for microalgae diets than for SOY. Microalgae diets resulted in higher secretion of Δ16:2 (P<0.05), cis-9, cis-12, cis-15 18:3 (α-linoleic acid; ALA) (P<0.05), cis-6, cis-9, cis-12 18:3 (P<0.05) and polyunsaturated fatty acids (PUFA) (P<0.05) in milk than SOY. Secretion of cis-5, cis-8, cis-11, cis-14, cis-17 20:5 (eicosapentaenoic acid; EPA) in milk tended to be higher on CHL and CHL-NAN than on SPI (P=0.060), and was higher on CHL-NAN than on CHL (P<0.05). Also the omega-6:omega-3 ratio was lower (P<0.05) for CHL-NAN than for CHL. The results suggest that microalgae are likely comparable protein feed to soya bean meal in dairy cow nutrition, especially if palatability of microalgae can be improved.

KW - 412 Animal science, dairy science

KW - Microalgae

KW - Spirulina platensis

KW - Chlorella vulgaris

KW - Nannochloropsis gaditana

KW - Soya bean meal

KW - Dairy cow

KW - Animal nutrition

U2 - 10.1016/j.anifeedsci.2018.11.005

DO - 10.1016/j.anifeedsci.2018.11.005

M3 - Article

VL - 247

SP - 112

EP - 126

JO - Animal Feed Science and Technology

T2 - Animal Feed Science and Technology

JF - Animal Feed Science and Technology

SN - 0377-8401

ER -