Umpackt of herbage proportion, animal breed, lactation stage and season on the fatty acid and protein composition of milk

Bär, Cornelia; Sutter, Michael; Kopp, Christoph; Neuhaus, Patrick; Portmann, Reto; Egger, Lotti; Reidy, Beat; Bisig, Walter (2020). Umpackt of herbage proportion, animal breed, lactation stage and season on the fatty acid and protein composition of milk International Dairy Journal, 109(104785), pp. 1-10. Elsevier 10.1016/j.idairyj.2020.104785

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Impact of herbage proportion, breed, average days in lactation (ADiL), and season on bulk milk composition of 12 dairy farms were investigated over a year using a mixed effect model approach. A 10%-points higher proportion of herbage led to higher contents of omega 3 (n-3) fatty acids (FAs), conjugated linoleic acids (CLA), vaccenic acid, and branched chain FAs (+0.08, +0.08, +0.19, +0.05 g 100 g−1 fat, respectively). Breed influenced n-3 FAs and CLA (+0.31, +0.17 g 100 g−1 fat, respectively), κ-casein, lipoprotein lipase, β-lactoglobulin, total whey protein, fatty acid synthase, and glycoprotein-2, resulting in +0.96, −0.019, −0.83, −1.12, +0.009, and +0.01 g 100 g−1 measured proteins, respectively, in Brown Swiss milk. ADiL influenced lactoferrin and crude protein; season affected all FAs and proteins examined. The identification of these quantitative relationships allow predictions that provide new insights for the production, processing and commercialisation of grassland-based dairy products.

Item Type:

Journal Article (Original Article)

Division/Institute:

School of Agricultural, Forest and Food Sciences HAFL
School of Agricultural, Forest and Food Sciences HAFL > Agriculture
School of Agricultural, Forest and Food Sciences HAFL > Agriculture > Grasslands and Ruminant Production Systems

Name:

Bär, Cornelia;
Sutter, Michael0000-0003-0314-5697;
Kopp, Christoph;
Neuhaus, Patrick;
Portmann, Reto;
Egger, Lotti;
Reidy, Beat0000-0002-8619-0209 and
Bisig, Walter

Subjects:

S Agriculture > S Agriculture (General)
S Agriculture > SB Plant culture
S Agriculture > SF Animal culture

ISSN:

09586946

Publisher:

Elsevier

Funders:

[UNSPECIFIED] Innosuisse
[UNSPECIFIED] IP-Suisse
[UNSPECIFIED] Migros

Language:

English

Submitter:

Michael Sutter

Date Deposited:

07 Jan 2021 07:21

Last Modified:

01 Dec 2021 21:46

Publisher DOI:

10.1016/j.idairyj.2020.104785

ARBOR DOI:

10.24451/arbor.14109

URI:

https://arbor.bfh.ch/id/eprint/14109

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