Reduction of greenhouse gas emissions from feed supply chains by utilizing regionally produced protein sources: the case of Austrian dairy production

Hörtenhuber, Stefan; Lindenthal, Thomas; Zollitsch, Werner

doi:10.1002/jsfa.4293

Cited by 42 publications

(40 citation statements)

References 11 publications

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“…Locally produced rapeseed feeds may also be more resilient and offer environmental benefits compared with soya bean-based feeds particularly in countries where soya bean cannot be cultivated (Hörtenhuber et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Dairy cow responses to graded levels of rapeseed and soya bean expeller supplementation on a red clover/grass silage-based diet

Rinne

Kuoppala

Ahvenjärvi

et al. 2015

Animal

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The effects of rapeseed and soya bean expeller (SBE) supplementation on digestion and milk production responses in dairy cows were investigated in an incomplete Latin square design using five cows and four 3-week periods. The experimental diets consisted of five concentrate treatments fed at a rate of 9 kg/day: a mixture of barley and oats, which was replaced with rapeseed or SBE at two levels (CP concentration (g/kg dry matter (DM)) of 130 for the control concentrate and 180 and 230 for the two protein supplemented levels). A mixture of grass and red clover silage (1:1) was fed ad libitum and it had a CP concentration of 157 g/kg DM. Supply of nutrients to the lower tract was measured using the omasal canal sampling technique, and total digestion from total faecal collection. Protein supplementation increased omasal canal amino acid (AA) flows and plasma concentrations of AA, and was also reflected as increased milk production. However, N use efficiency (NUE) decreased with increased protein supplementation. Rapeseed expeller (RSE) tended to increase silage DM intake and elicited higher milk production responses compared with SBE and also resulted in a higher NUE. The differences between the protein supplements in nitrogen metabolism were relatively small, for example, there were no differences in the efficiency of microbial protein synthesis or omasal canal flows of nitrogenous components between them, but plasma methionine concentration was lower for soya bean-fed cows at the high CP level in particular. The lower milk protein production responses to SBE than to RSE supplementation were at least partly caused by increased silage DM and by the lower methionine supply, which may further have been amplified by the use of red clover in the basal diet. Although feed intake, diet digestion, AA supply and milk production were all consistently improved by protein supplementation, there was a simultaneous decrease in NUE. In the current study, the milk protein production increased only 9% and energy-corrected milk production by 7% when high level of protein supplementation (on average 2.9 kg DM/day) was compared with the control diet without protein supplementation showing that dairy production could be sustained at a high level even without external protein supplements, at least in the short term. The economic and environmental aspects need to be carefully evaluated when decisions about protein supplementation for dairy cows are taken.Keywords: amino acid supply, canola, dairy cow, protein supplementation, soybean ImplicationsThis study showed that dairy cows respond to protein supplementation even when the basal diet contains red clover silage and has relatively high CP concentration. However, the production decreased only 8% when a high level of protein supplementation (on average 2.9 kg dry matter per day) was compared with the control diet without protein supplementation showing that dairy production can be sustained at a high level even without external protein supplements. This study confirmed that rapeseed-bas...

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Section: Discussionmentioning

confidence: 99%

Dairy cow responses to graded levels of rapeseed and soya bean expeller supplementation on a red clover/grass silage-based diet

Rinne

Kuoppala

Ahvenjärvi

et al. 2015

Animal

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“…The emission of ammonia levels reached also contributes to the protection of the atmosphere in the small farming (Haas et al, 2001, Geier et al, 1998. Emissions of greenhouse gases range is moderate, as it has been demonstrated in several national research (Petersen et al, 2005;Robertson et al, 2000;Hörtenhuber et al, 2010). …”

Section: The Advantages Of Organic Farmingmentioning

confidence: 82%

“…organic farming carries a number of environmental benefits. Soil is the largest carbon-emitting agent in the production process (Hörtenhuber et al, 2010). In the production process (for example in the case of dairy or bakery products), agricultural activities have the biggest CO2 emissions, so in the case of dairy products carbon dioxide emissions are 10-21% less, in the case of bakery products 25% and in the case of vegetable production 10-35% than with traditional means of preparation, respectively.…”

Section: The Advantages Of Organic Farmingmentioning

confidence: 99%

Challenges and Opportunities of Organic Farming

2017

Thinking Together

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“…Sweden imports soya beans mainly from South America (FAOSTAT, 2014), where its production has in several studies been linked to deforestation and associated GHG emissions (Barona et al, 2010). The connection to deforestation has been a major reason behind an increased effort to replace imported soya meal with locally available protein crops (Hortenhuber et al, 2011;Meul et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Analysing the environmental impacts of protein feed substitutions is not new (Lehuger et al, 2009;Hortenhuber et al, 2011;Mogensen et al, 2012). However, in our paper we extend the analysis to cover not only feed production but also the impact of protein feed substitution on emissions from animal production.…”

Section: Introductionmentioning

confidence: 99%

Localising livestock protein feed production and the impact on land use and greenhouse gas emissions

Sasu-Boakye

Cederberg

Wirsenius

2014

Animal

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Livestock farmers in Sweden usually grow feed grains for livestock but import protein feed from outside Sweden. Aside from the economic implications, some environmental issues are associated with this practice. We used life cycle assessment to evaluate the impact of local protein feed production on land use and greenhouse gas emissions, compared with the use of imported protein feed, for pig meat and dairy milk produced in Sweden. Our results showed that local production reduced greenhouse gas emissions by 4.5% and 12%, respectively, for pigs and dairy cows. Land use for feed production in Sweden increased by 11% for pigs and 25% for dairy cows, but total land use decreased for pig production and increased for dairy milk production. Increased protein feed cultivation in Sweden decreased inputs needed for animal production and improved some ecological processes (e.g. nutrient recycling) of the farm systems. However, the differences in results between scenarios are relatively small and influenced to an extent by methodological choices such as co-product allocation. Moreover, it was difficult to assess the contribution of greenhouse emissions from land use change. The available accounting methods we applied did not adequately account for the potential land use changes and in some cases provided conflicting results. We conclude that local protein feed production presents an opportunity to reduce greenhouse gas emissions but at a cost of increasing land occupation in Sweden for feed production.

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Reduction of greenhouse gas emissions from feed supply chains by utilizing regionally produced protein sources: the case of Austrian dairy production

Abstract: Utilization of locally produced APRFs shows clear advantages in terms of GHGE. Balanced mixtures of APRFs may offer specific benefits, as they allow for a combination of desirable nutritional value and reduced GHGE.

Cited by 42 publications

References 11 publications

Dairy cow responses to graded levels of rapeseed and soya bean expeller supplementation on a red clover/grass silage-based diet

Dairy cow responses to graded levels of rapeseed and soya bean expeller supplementation on a red clover/grass silage-based diet

Challenges and Opportunities of Organic Farming

Localising livestock protein feed production and the impact on land use and greenhouse gas emissions

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