On-Farm Energy Production and Use in the USA

2020 ◽  
Vol 7 ◽  
pp. 94-112
Author(s):  
Alla Korotkikh
Keyword(s):  
The Usa ◽  
2020 ◽  
Vol 21 (2) ◽  
pp. 143-148
Author(s):  
Michael W. Overton

AbstractBovine respiratory disease (BRD) is a frequent disease concern in dairy cattle and is most commonly diagnosed in young dairy heifers. The impact of BRD is highly variable, depending on the accuracy and completeness of detection, effectiveness of treatment, and on-farm culling practices. Consequences include decreased rate of weight gain, a higher culling risk either as heifers or as cows, delayed age at first service, delayed age at first calving, and in some cases, lower future milk production. In this data set of 104,100 dairy replacement heifers from across the USA, 36.6% had one or more cases diagnosed within the first 120 days of age with the highest risk of new cases occurring prior to weaning. Comparison of the raising cost for heifers with BRD and those without a recorded history of BRD resulted in an estimated cost per incident case occurring in the first 120 days of age of $252 or $282, depending upon whether anticipated future milk production differences were considered or not. Current market conditions contributed to a cost estimate that is significantly higher than previously published estimates, driven in part by the losses associated with selective culling of a subset of heifers that experienced BRD.


Environments ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 8
Author(s):  
Sean O’Connor ◽  
Ehiaze Ehimen ◽  
Suresh C. Pillai ◽  
Niamh Power ◽  
Gary A. Lyons ◽  
...  

Anaerobic digestion (AD) has been recognised as an effective means of simultaneously producing energy while reducing greenhouse gas (GHG) emissions. Despite having a large agriculture sector, Ireland has experienced little uptake of the technology, ranking 20th within the EU-28. It is, therefore, necessary to understand the general opinions, willingness to adopt, and perceived obstacles of potential adopters of the technology. As likely primary users of this technology, a survey of Irish cattle farmers was conducted to assess the potential of on-farm AD for energy production in Ireland. The study seeks to understand farmers’ motivations, perceived barriers, and preferred business model. The study found that approximately 41% of the 91 respondents were interested in installing AD on their farming enterprise within the next five years. These Likely Adopters tended to have a higher level of education attainment, and together, currently hold 4379 cattle, potentially providing 37,122 t year−1 of wastes as feedstock, resulting in a potential CO2 reduction of 800.65 t CO2-eq. year−1. Moreover, the results indicated that the primary consideration preventing the implementation of AD is a lack of information regarding the technology and high investment costs. Of the Likely Adopters and Possible Adopters, a self-owned and operated plant was the preferred ownership structure, while 58% expressed an interest in joining a co-operative scheme. The findings generated provide valuable insights into the willingness of farmers to implement AD and guidance for its potential widespread adoption.


Energy Policy ◽  
2016 ◽  
Vol 95 ◽  
pp. 361-369 ◽  
Author(s):  
Axel Schaffer ◽  
Claudia Düvelmeyer
Keyword(s):  

Energy Policy ◽  
2009 ◽  
Vol 37 (3) ◽  
pp. 1170-1179 ◽  
Author(s):  
Emmanuel K. Yiridoe ◽  
Robert Gordon ◽  
Bettina B. Brown

2016 ◽  
Vol 32 (4) ◽  
pp. 331-348 ◽  
Author(s):  
Kathleen Delate ◽  
Stefano Canali ◽  
Robert Turnbull ◽  
Rachel Tan ◽  
Luca Colombo

AbstractOrganic agriculture continues to expand in the USA and in the European Union (EU), particularly in Italy, which had 48,650 organic farms in 2014 compared with 19,474 in the USA. Additionally, EU support for organic research is nearly double than that of the USA. Along with increased support for organic research, the EU organic community has achieved recognition at the European Commission policy level for a dedicated innovation platform, advocating the practice of farmer-first models for participatory research. The US land-grant universities have a long history of on-farm research, primarily through the Extension Service, but the need exists for more inclusive, second-loop, co-research with organic farmers. A survey was conducted of organic farmers and researchers in Italy and in the USA to ascertain the extent of participatory organic research activities and experiences, and explore the vision each group had for the future of co-innovation between organic farmers and researchers. Results indicated that, despite the higher level of organic research support in the EU, the percentage of researchers involved in on-farm/participatory organic research was equivalent in Italy and the USA, presumably due to the more recent emphasis in Italian/EU agricultural research agendas on the importance of farmer knowledge and participation in organic research. Overall, 60% of surveyed organic researchers in both countries cited involvement in on-farm/participatory organic research, with ‘farming systems’ and ‘nutrient/pest management’ the main research focus in the USA, compared with ‘farming systems’ and ‘equipment’ in Italy. Both countries’ researchers expressed their vision of participatory research as helping to improve communication between researchers and farmers, to enable work on relevant research, and to allow farmers to adapt technologies to their own conditions. Organic farmers in Italy completed survey questionnaires as part of a field day activity, leading to more Italian farmers responding to the survey, compared with USA counterparts who were queried via e-mail. Organic farmers in Italy identified ‘knowledge-sharing’ as a critical value of participatory research, and were conducting on-farm research with less compensation than US farmers. The ‘lack of time’ was cited as the most important constraint limiting participatory research by Italian and US farmers, although the ‘lack of common language’ also was rated as potentially impairing full participation. Lessons shared between EU and US organic researchers as a result of this project included methods to institute policies aimed at increasing support for organic research and co-innovations with organic farming communities, and connecting experienced on-farm researchers in the US with Italian colleagues to enhance collaborative activities with organic farmers.


2020 ◽  
Vol 178 ◽  
pp. 01058 ◽  
Author(s):  
Yulia Volotkovskaya ◽  
Natalya Volotkovskaya ◽  
Alexander Semenov ◽  
Anastasia Semkova ◽  
Oleg Fedorov ◽  
...  

The paper analyses the global demand for various energy resources in recent years. Nowadays, qualitative and quantitative changes in structure of distribution and consumption of energy resources take place. The paper has reviewed a number of papers predicting two-fold increase in the global energy production market by 2040. A number of other papers also predict the shift of energy demand from the USA and EU countries to the Asian market. The paper presents percentage distribution of world’s energy requirements satisfied by the six types of resources among which oil, gas, and coil are still predominant. Some papers have stated that the demand for natural gas will continue to grow faster than the demand for oil or coil in the future. To confirm or deny this theory the authors have designed the mathematical model showing trends in demand for gas compared to the total demand for oil and coal; as a result, two different polynomial functions have been obtained with almost the same probability confirming this prediction. Trends in energy production and change of global energy demand across regions over the past twenty years have been studied. The studies show that, in general, energy production has been increased for the last decade. However, due to economic crises fluctuations, energy production in EU countries has abruptly decreased; it results in displacement of the EU countries from the market by the countries of the Middle East and the Near East. The paper also notes such important factors as decrease in solid fuel production in Great Britain; steady increasing importance of renewable energy sources for the last few years; reducing of the rate of nuclear energy development by some key countries; general lack of energy recourses in EU countries, etc.


2007 ◽  
Vol 13 ◽  
pp. 515-518
Author(s):  
J.H. Bouton

The viability of this international symposium on grass/fungal endophytes is a direct measure of the nature and strength of the underlying science itself. The symposium's past was dominated by a multidiscipline approach and a geographic focus in New Zealand, USA, and Australia, due mainly to the economic impact of tall fescue (Festuca arundinacea Schreb.) and perennial ryegrass (Lolium perenne L.) when infected with Neotyphodium endophytes. There have been many research and technological findings reported during the past five symposia, with novel endophytes as an example of one having positive on-farm impact. In the future, it is anticipated that 1) the multidisciplinary approach will continue; 2) patenting issues will cause disruptions (hopefully small) in information sharing; 3) funding will drive the underlying science thereby continuing a concentration of work in New Zealand, Australia, and the USA, but opportunities will arise in these major countries for collaborative research with scientists in other geographies; 4) commercialisation and on-farm use of novel endophytes will expand; 5) sequencing and gene expression data will be available for the main fungal genomes, and microarray, genomics, and transciptome approaches will grow in importance; and 6) development of a "mind map" will help identify knowledge gaps for determining endophyte effects on animals. However, it was the inspiration, leadership, confidence, and even boldness of individual scientists in the field that pushed both this symposium and the science to the level it is today. Therefore, as the symposium moves forward, younger scientists need to assume leadership roles, and then be bold and confident in pushing forward; especially with continuing the symposium. Keywords: Neotyphodium, fungal endophytes, symposium, grasses, tall fescue, perennial ryegrass, biotechnologies


Energy Policy ◽  
2011 ◽  
Vol 39 (5) ◽  
pp. 2424-2430 ◽  
Author(s):  
R.B. Tranter ◽  
A. Swinbank ◽  
P.J. Jones ◽  
C.J. Banks ◽  
A.M. Salter

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