Producing volatile fatty acids and polyhydroxyalkanoates from foods by-products and waste: a review.

Supported by the Spanish Ministry of Science and the European Regional Development Fund (ERDF) (Grant No. DPI2017-85343-P).

/pdf/a-dea-approach-for-merging-dairy-farms-4s28vemjjh.pdf

A dea approach for merging dairy farms

Spatial–temporal analysis of the comparative advantages of dairy farming: Taking 18 provinces or municipalities in China as an example

In this paper, we examine the changes in the structural, economic and managerial characteristics of dairy cow farms during their shift towards a new business model that operates under a highly intensified system. Based on farm accounting data from Greek dairy farms for the 2004–2017 period, the main technical and financial indicators are estimated and compared to provide a clear picture of the structural adjustment of the dairy cow sector during the last two decades. The outcomes and the implications described herein are relevant for specialized dairy farms in most European countries. The results indicate that modern farms breed a larger number of cows, achieve a higher milk yield, rely on high compound feed intakes and operate under an intensive pattern. This trend is even more evident in larger farms with an entrepreneurial nature, whose structural adjustments occurred in a more concise and effective manner. The latter benefited from a downward shift in their long-term average cost curves and the resulting economies of scale, achieving reasonable gross margins despite the ever-increasing feeding costs. Nowadays, the European dairy cow sector faces major economic, social and environmental challenges that must be properly addressed to secure its survival. The findings of this study provide insights concerning the efficient financial management of dairy farms that can support the development of strategies and policy recommendations that will enhance the resilience and sustainability of the sector.

/pdf/evolution-of-the-structure-and-economic-management-of-the-myfbxclv.pdf

Evolution of the Structure and Economic Management of the Dairy Cow Sector

In dairy farms, the feeding cost, which includes the expenses for purchased feed but also the expenses for feed production, constitutes a very large part of production cost (more than 60%), which indicates the economic importance of the feeding strategy. This study discerns three different feeding strategies: landless farms only purchasing feed from markets (“Purchasing”), farms for which home-grown feeds stand for more than 10% of feeding costs (“Producing”) and farms with less than 10% home-grown feeds (“Multi-purpose”). Based on technical and economic data from 47 dairy cow farms in Greece, alternative scenarios of development of the dairy sector are determined taking into account the dependence on on-farm feed production. Through a parametric programming model, the study provides insights regarding the optimal structure of the system under different scenarios (changing availability of variable capital, changes in milk prices). The results indicate that “Purchasing” farms are the preferred option when variable capital is abundant and milk prices are satisfactory, while “Producing” are the ones surviving with milk prices significantly lower than the actual ones in Greece and European Union. “Multi-purpose” farms perform worse than the other two and are sidelined in both scenarios, as they do not seem to be able to specialize in the dairy enterprise or in crop production and thus to minimize costs.

https://www.mdpi.com/2624-862X/2/1/12/pdf

Impact of Feeding Pattern on the Structure and the Economic Performance of Dairy Cow Sector

Identification of efficient dairy farms in Greece based on home grown feedstuffs, using the Data Envelopment Analysis method

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Identification of efficient dairy farms in Greece based on home grown feedstuffs, using the Data Envelopment Analysis method