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Protein efficiency ...
Protein efficiency in intensive dairy production : A Swedish example
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- Swensson, Christian (författare)
- Sveriges lantbruksuniversitet,Swedish University of Agricultural Sciences,Biosystem och teknologi,Department of Biosystems and Technology,Swedish Univ Agr Sci, Dept Biosyst & Technol, Alnarp, Sweden.
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- Lindmark-Månsson, Helena (författare)
- Lund University,Lunds universitet,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH,Federation of Swedish Farmers,Dairy Sweden, Stockholm, Sweden.;Lund Univ, Dept Food Technol Engn & Nutr, Lund, Sweden.
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- Smedman, Annika (författare)
- Uppsala universitet,Uppsala University,Federation of Swedish Farmers,Klinisk nutrition och metabolism,Dairy Sweden, Stockholm, Sweden
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- Henriksson, Maria (författare)
- Vaxa Sverige, Eldsberga, Sweden.,Växa Sverige
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- Modin Edman, Anna-Karin (författare)
- Arla Foods, Stockholm, Sweden.
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(creator_code:org_t)
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- 2017-05-22
- 2017
- Engelska.
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Ingår i: Journal of the Science of Food and Agriculture. - : Wiley. - 0022-5142 .- 1097-0010. ; 97:14, s. 4890-4897
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- BACKGROUND: Animal agriculture has been criticised in terms of its sustainability from several perspectives. Ruminants such as dairy cows can transform inedible, low-quality protein in roughage and by-products from the food industry into the high-quality protein found in milk and meat. Evaluation of the protein conversion efficiency of dairy production from a sustainability and resource perspective must be based on the proportion of the animal feed edible to humans. A relevant metric is thus edible feed protein conversion ratio (eFPCR), i.e. human-edible protein output in cow's milk per unit human-edible protein input in feed. In this study, eFPCR was calculated for five regionally adapted and realistic feed rations fed to Swedish dairy cows producing different annual milk yields typical for high-yielding, intensive dairy production. RESULTS: All scenarios except one showed a protein efficiency ratio of >1 for human-edible protein. Thus, depending on the composition of their diet, most Swedish dairy cows can convert human-inedible protein into edible, high-value protein. However, higher milk yield led to a decrease in eFPCR, regardless of diet. CONCLUSION: Dairy cows in high-yielding, intensive production systems such as those used in Sweden have the capacity to convert low-value inedible protein into high-value edible protein. However, a minor part of the dairy cow diet is edible for humans and this fraction must be minimised to justify dairy production. These results are in line with previous findings on protein conversion efficiency and add scientific input to the debate on sustainable food systems and sustainable diets.
Ämnesord
- LANTBRUKSVETENSKAPER -- Husdjursvetenskap -- Husdjursvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Animal and Dairy Sience -- Animal and Dairy Science. (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Näringslära (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Nutrition and Dietetics (hsv//eng)
Nyckelord
- Dairy cow rations
- Feed efficiency
- Milk production
- Protein efficiency
- milk production
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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