New and Unique Study Shows Potential for Use of Milk from Native Cattle Breeds to Produce Commercial Bioactive Food Components
The result of the study shows potential for new areas of commercial use of milk from the Nordic native breeds. This can be an important step in promoting the sustainable use of the breeds which in many cases are at risk of becoming endangered.
A recent
ly published
study has for the first time characterized oligosaccharides
in milk
from native North European cattle breeds.
Milk oligosaccharides are of high interest due to their bioactive properties.
The result
of the study
show
s
potential for new
areas of
commercial
use of milk from the Nordic native breeds
. This can be an important step in promoting the sustainable use of the breeds
which in many cases are at risk of becoming endangered.
A newborn baby’s ideal source of nutrition is human milk
, not least since
it provides numerous biological activities. These activities originate
from
s
everal different components of the milk, among them o
ligosaccharides
which
provide several key health promoting roles, such as acting as probiotics in the gut and modulating the immune system.
Cow milk contains many oligosaccharides that are similar to those in human milk and several studies on milk from commercial
cattle
breeds have shown the potential use of this milk to produce bioactive food components, such as infant formula
.
“However, the
oligosaccharides in milk
from native cattle breeds in northern Europe has never been analyzed
before this study. T
he breeds carry a wide genetic diversity
which is reflected in the variations of the phenotypic expression of oligosaccharides. T
his study also shows that
milk from
certain
native breeds stood out in
terms of relative total oligosaccharides
”, said Anne Vuholm Sunds,
PhD-student at the
Department of Food Science at Aarhus University
and
lead author to the study
“Comparison of bovine milk oligosaccharides in native North European cattle breeds”
.
Outcome from Nordic network
The milk samples characterized in the study were analysed by the
Barile Lab at the University of California
and collected as part of the network
NordMilk
, which was coordinated by NordGen in 2016-2017. The fact that the efforts in the network now lead to concrete and relevant research outcomes creates hope for the native breeds.
“This kind of research is great news for the Nordic native cattle breeds. If we can find new markets for their products, we can create incentives for farmers to keep the native breeds instead of replacing them with more high yielding
commercial
breeds”, said Mervi Honkatukia, Section Leader at NordGen Farm Animals.
80 milk samples from eight breeds
In the study, 80 milk samples from eight native
breeds
were analy
z
ed.
The highest abundance of total milk oli
g
osaccharides was found in milk from the Western Finncattle which had significant higher levels compared to all breeds and approximately double as high as the levels in the milk from the commercial breeds. In Finland, the vocational college Ahlman’s is keeping the breed
as a living genebank
and they
were
excited with the results from the study.
“The exceptionally good oligosaccharide results obtained from milk from Western Finncattle are very interesting. They give us new commercial opportunities and a completely new window for product development – for example by making new products at Ahlman's own dairy. Based on the results, we
could
even use the milk for health products”, said Rii
t
ta Niiranen,
P
roject
Manager
at Ahlman’s
.
According to her, the
result
from the study gives the vocational college another way to justify the need for living genebanks, as these special genes and traits can’t be recreated if lost.
“
Entrepreneurs will also benefit from the study results as we now have an additional reason to preserve the breeds for the future. Dairy farmers with Western Finncattle can now get paid for the quality of the milk, and not just aim for the quantity
”, Niiranen concludes.
New potential use of the Norwegian Døla Cattle
In the study,
the
authors also suggest that the breeding for increased milk yield in commercial breeds may have resulted in lower content of oligosaccharides
due to earlier findings of beef cattle having higher total content of oligosaccharides in the milk.
This is important for a
nother
Nordic native
breed in
,
the
Norwegian Døla Cattle,
which
originates from the rich
valley
pastures north of Oslo
. It
is listed as endangered even though the population size has increased over the decades, much due to conservation work done by the breeding organization Dølafelaget.
Morten Bjerkvik is the chairman of the
organization and
is very optimistic about the new findings in the study.
“This can be very good news for the Norwegian Døla Cattle. The breed has only recently gone from being critically endangered to just being endangered. But all progress is due to an increase in its use as a suckler cow. As a dairy cow, the breed is almost extinct. Using it for its milk could be
one way of saving the breed for the future
”
, he said.
The eight native North European cattle breeds whose milk was analyzed were:
Norwegian D
ø
la cattle
Norwegian
Telemark cattle
Swedish Mountain cattle
Danish Red anno 1970
Icelandic cattle
N
ative Lithuanian Black and White
Western Finncattle
Eastern Finncattle
NordMilk is a project where a network of research groups from the Nordic countries was established, with the aim of generating and coordinating activities on characterising milk from native dairy cattle breeds. NordGen acted as a secretariat for the network. The network was funded by the Nordic Joint Committee for Agricultural and Food Research (NKJ) in 2016-2017. Participating universities include:
Aarhus University
University of Copenhagen
Natural Resources Institute Finland
University of Iceland
Norwegian University of Life Sciences
Lund University
Estonian University of Life Sciences
Kaunas University of Technology