Sustainable Urban Systems

Kennedy, Christopher; Baker, Lawrence A.; Dhakal, Shobhakar; Ramaswami, A.

doi:10.1111/j.1530-9290.2012.00564.x

Cited by 46 publications

(22 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several studies have been carried out to evaluate the use of soybean meal as feed resources to improve beef cattle production. Kennedy (2012) reported that the use of 15% soybean meal in sheep ration combined with corn cob increased average daily gain. Moreover, Foster et al (2014) suggested that there were enhancements of DM, OM, and N intakes, N digestibility and retention, and concentrations of rumen metabolites in sheep supplemented with soybean meal, perennial peanut, annual peanut, and cowpea peanut.…”

Section: Introductionmentioning

confidence: 99%

Fermentation Characteristics and Nitrogen Retention of Madura Cattle Fed Complete Rations Containing Soybean Pod and By-Products

Wiryawan

Saefudin

Fuah

et al. 2017

Med Pet

View full text Add to dashboard Cite

This study was aimed to evaluate the effect of complete rations containing soybean pod and soybean by-products (soybean meal and tofu waste) on rumen microbial population, fermentation characteristics, nutrient digestibility, and nitrogen retention of Madura cattle. Twelve Madura cattle of 1.5 years of age were given 4 feeding treatments in triplicates in randomized block design experiment. The treatments included T0 (100% native grass) as a negative control, T1 (concentrate: grass (60:40) as a positive control, T2 (complete ration containing 15% soybean pods), and T3 (complete ration containing 30% soybean pods). The treatments were based on feeding practices commonly applied by farmers in the village. The results showed that the use of concentrate rations or complete rations containing soybean pod and by-product did not affect protozoa population, ammonia concentration, and total VFA production compared to cattle fed 100% native grass. In contrast, the use of concentrate rations or complete rations containing soybean pod and by-products reduced acetate and increased butyrate proportion compared to native grass. The use of a concentrate ration resulted the highest propionate proportion. Methane estimation increased with the use of concentrate ration or complete ration containing 15% soybean pod, but it decreased when the level of soybean pod was increased to 30%. It can be concluded that soybean pod has a potential to be used as a fiber source in beef cattle ration to substitute native grass.Keywords: rumen fermentation, nutrient digestibility, nitrogen retention, madura cattle, soybean pod ABSTRAK Penelitian ini bertujuan untuk mengkaji pengaruh ransum komplit yang mengandung kulit polong kedelai dan hasil ikutan kedelai (bungkil kedelai dan ampas tahu) pada populasi mikrob rumen, karakteristik fermentasi, kecernaan nutrien, dan retensi nitrogen. Penelitian menggunakan 12 ekor sapi Madura umur 1,5 tahun. Rancangan yang digunakan adalah rancangan acak kelompok dengan 4 perlakuan pakan dan setiap perlakuan terdiri atas 3 kelompok sebagai ulangan. Perlakuan yang digunakan adalah T0 (100% rumput lapang)/kontrol negatif, T1 (konsentrat:hijauan= 60:40)/ kontrol positif, T2 (ransum komplit yang mengandung kulit polong kedelai 15%), dan T3 (ransum komplit yang mengandung kulit polong kedelai 30%). Perlakuan yang digunakan berbasis pada pakan yang biasa digunakan oleh rakyat peternak. Hasil penelitian menunjukkan bahwa ransum komplit yang mengandung ikutan kedelai serta kulit polong kedelai 15% dan 30% tidak mempengaruhi populasi protozoa, konsentrasi amonia, dan produksi VFA total dibandingkan dengan ransum yang 100% rumput lapang. Sebaliknya, penggunaan ransum konsentrat atau ransum komplit yang mengandung kulit polong kedelai dan hasil ikutan kedelai mampu menurunkan proporsi asetat dan meningkatkan proporsi butirat dibandingkan dengan ternak yang mendapat rumput lapang saja. Penggunaan ransum konsentrat menghasilkan proporsi propionat yang paling tinggi. Estimasi metan meningkat dengan penggunaan ransum kon...

show abstract

Section: Introductionmentioning

confidence: 99%

Fermentation Characteristics and Nitrogen Retention of Madura Cattle Fed Complete Rations Containing Soybean Pod and By-Products

Wiryawan

Saefudin

Fuah

et al. 2017

Med Pet

View full text Add to dashboard Cite

show abstract

“…Assessment of urban metabolism includes, in principle, discussion of GHG emissions and energy flows. While both fields have been reviewed in a joint manner elsewhere (11,17,19,20), in this review we chose to highlight the narrower domain of energy and GHG-related accounting as a separate field of research (or a sub-field within urban metabolism research) that has a much wider uptake in practice. We believe that by separating the two bodies of knowledge we can help to build a picture of the strengths and weaknesses of each field and shed greater light on how best to bridge the gap between them, in order to address the assessment of urban environmental sustainability in an integrated way, a need that has been highlighted by others (e.g.…”

Section: Overview Of Methodological Approaches and Conceptual Considementioning

confidence: 99%

Concepts and Methodologies for Measuring the Sustainability of Cities

Roche

Lechtenböhmer

Fischedick

et al. 2014

Annu. Rev. Environ. Resour.

View full text Add to dashboard Cite

In recent decades, better data and methods have become available for understanding the complex functioning of cities and their impacts on sustainability. This review synthesizes the recent developments in concepts and methods being used to measure the impacts of cities on environmental sustainability. It differentiates between a dominant trend in research literature that concentrates on the accounting and allocation of greenhouse gas emissions and energy use to cities and a reemergence of studies that focus on the direct and indirect material and resource flows in cities. The methodological approaches reviewed may consider cities as either producers or consumers, and all recognize that urban environmental impacts can be local, regional, or global. As well as giving an overview of the methodological debates, we examine the implications of the different approaches for policy and the challenges these approaches face in their application in the field.

show abstract

“…Green development or other relevant concepts have emerged due to the changing character of cities as well as the need for new conceptual and operational tools to tackle all dimensions of sustainability [13]. Sustainable cities can be achieved by studying urban metabolism, water footprints, urban carbon, the dynamics of city growth and the interdependency of social actors, institutions, and biophysical system flows [14]. For example, the urban metabolism concept was proposed to explain the dynamics of developing sustainable cities [15], and in addition to assessing cities from the perspective of material flow, the perspectives of ecology, the water footprint or other ecological footprints are considered part of the spatial dimension of environmental sustainability [16].…”

Section: Introductionmentioning

confidence: 99%

An Empirical Study of the Assessment of Green Development in Beijing, China: Considering Resource Depletion, Environmental Damage and Ecological Benefits Simultaneously

et al. 2018

Sustainability

View full text Add to dashboard Cite

Urban green development (UGD) is a highly topical issue. To assess the degree of UGD, in this paper, we use the driving forces, pressures, states, impacts, and responses (DPSIR) model to evaluate UGD with a collection of 40 indicators based on the three aspects of resource depletion, environmental damage and ecological benefits. The established system of indicators is then applied to evaluate the UGD in Beijing from 2000 to 2014 as a case study. The results demonstrate that it is essential to analyze the trend in the change in resource depletion, which had a high weight of 0.556 because environmental damage and ecological benefits partly changed in response to this driving force and pressure. However, the UGD index value of environmental damage (positive index) has decreased since 2010. By ranking the degree of correlation among indicators, it can be seen that UGD is highly related to the lifestyle, status quo, technology and education, industrialization, environmental quality, and ecological environment of a city. The health situation in Beijing has improved in the past 15 years; it was determined to be very unhealthy (75% at the very unhealthy level (V) and 9% at the very healthy level (I)) in 2000 but very healthy (8% at the very unhealthy level (V) and 60% at the very healthy level (I)) in 2014. However, there are internal problems due to imbalanced development in Beijing related to aspects such as the ecological environment, population and economy, social life, investment management, energy consumption and urban infrastructure. And government should adjust the energy structure, formulate detailed plans and policies on urban environment, and increase investment in education and business development.

show abstract

Sustainable Urban Systems

Cited by 46 publications

References 34 publications

Fermentation Characteristics and Nitrogen Retention of Madura Cattle Fed Complete Rations Containing Soybean Pod and By-Products

Fermentation Characteristics and Nitrogen Retention of Madura Cattle Fed Complete Rations Containing Soybean Pod and By-Products

Concepts and Methodologies for Measuring the Sustainability of Cities

An Empirical Study of the Assessment of Green Development in Beijing, China: Considering Resource Depletion, Environmental Damage and Ecological Benefits Simultaneously

Contact Info

Product

Resources

About