scholarly journals Biofertigation of Forage With Effluents From a Cattle Slaughterhouse Green Line: Impacts on Physical-Chemical Indicators of Soil Quality and on Production Biomass

2018 ◽  
Vol 10 (7) ◽  
pp. 359
Author(s):  
Joaquim Jose de Carvalho Carvalho ◽  
José Maria Rodrigues da Luz ◽  
Jaqueline Henrique ◽  
José Geraldo Delvaux Silva ◽  
Raphael Bragança Alves Fernandes ◽  
...  

Cattle slaughterhouses are potential causes the environmental impacts, as it require a large volume of water in meat processing, generate large effluents amount, and promote the Cerrado deforestation for animal husbandry. Therefore, we aim was carried out to assess the effects of the soil application of a green line wastewater from a cattle slaughterhouse in the Brachiaria brizantha growth. The M1 and M2 managements did not contain wastewater of slaughterhouse. The wastewater from the 3rd stabilization pond (M3 to M5), from reception box (M6 to M8), and manure (M9 and M10) were used in the biofertigation managements. The physical-chemical indicators levels did not show significant differences (p < 0.05) before soil preparation and after managements. However, biofertigation in the Cerrado soil can provide a mitigation of the leaching of fine soil particles and cations. In addition, maximum nitrogen dose of wastewater provided a higher leaf biomass productivity than commercial nitrogen. Thus, the fertigation with wastewater can reduce the use of water bodies to crops irrigation and the incorporation of new areas with native vegetation to the agricultural production systems.

2018 ◽  
Vol 10 (10) ◽  
pp. 248
Author(s):  
J. G. D. Silva ◽  
J. M. R. da Luz ◽  
Jacqueline Henrique ◽  
J. J. de Carvalho ◽  
J. E. C. da Silva

Fertigation of agricultural crops that are not directly used in human food, with domestic wastewater is a viable alternative for the sustainable use of water resources. The development of agricultural practices that provide high productivity with the sustainability of agroecosystems has been a great challenge. Thus, our aims were to use of domestic wastewater in the planting of Brachiaria brizantha cv Marandu, as an alternative for animal feed production in Cerrado soils, and to study the physical-chemical and microbiological impacts of the fertigation. These impacts were evaluated, respectively, by physical-chemical indicators content and diversity of nitrogen fixing bacteria (NFB) and arbuscular mycorrhizal fungi (AMF) in the DGGE profile. The NPK contents of the wastewater were used to determine the five fertigation managements (M1 to M5). M1 and M2 managements had no wastewater and M3 to M5 contained 20, 40 and 60% of NPK from the wastewater. The managements in a completely randomized design with 20 plots and 4 replicates were distributed. Soil samplings prior to fertigation and at the end of the experiment were performed. Leaf biomass productivity was determined in three different grass cuts. After fertigation, changes in physical-chemical indicators and in the viable microbial cells counts were observed. The NPK of wastewater increased the abundance of NFBs and AMFs. Leaf biomass productivity per hectare was directly proportional to NPK concentration. In addition, wastewater did not alter the nutritional composition of Marandu grass. Therefore, the fertigation with domestic wastewater showed to be a viable and promising alternative for reuse of this water in Cerrado soil for animal feed production.


2018 ◽  
Vol 10 (5) ◽  
pp. 353
Author(s):  
Joaquim Jose de Carvalho ◽  
José Maria Rodrigues da Luz ◽  
Jaqueline Henrique ◽  
José Geraldo Delvaux Silva ◽  
José Expedito Cavalcante da Silva ◽  
...  

The wastewater has been an environmental problem, but your used as fertilizers could reduce or eliminate the application of commercial fertilizers in soil. Arbuscular mycorrhizal fungi (AMF) and nitrogen fixing bacteria (NFB) are a good parameter to analyze the impacts of this fertigationon soil. We aimed to evaluate the distribution and diversity of AMF and NFB before and after applications of wastewater or manure from green line of a cattle slaughterhouse in the irrigation of B. brizantha cv Marandu in Cerrado soil and leaf biomass productivity. The experimental design was performed in completely randomized blocks with ten biofertigation managements. The seeds of the forage were distributed in grooves with spacing of 5 cm. This seeds were covered with a soil layer. NFB and AMF diversity was performed by denaturing gradient gel electrophoresis (DGGE). The leaf biomass productivity in the biofertigation managements was higher than in the managements without the use wastewater/manure. After biofertigation managements, changes in the DGGE profile of the NFB and AMF communities were observed. These changes may be due to the difference in the sample collection period and in the soil humidification. Thus, these DGGE profiles was a good parameter to diagnose the efficacy of wastewater/manure as an alternative biotechnological irrigation.


Vsyo o myase ◽  
2020 ◽  
pp. 56-60
Author(s):  
Zayko E.V. ◽  
◽  
Kuznetsova O.A. ◽  
Bataeva D.S. ◽  
Grudistova M.A. ◽  
...  

The problem of the uncontrolled use of antibiotics currently remains unresolved. Step-by-step monitoring of meat using modern methods will reduce the risk of using contaminated meat raw materials for food production. Qualitative monitoring will identify samples containing residual antimicrobial substances. The use of methods for identifying groups of antibiotics will help narrow the search for antibiotics by expensive chromatographic methods. A study was carried out of beef, pork and poultry meat, which is used in meat processing plants in the production of raw smoked sausages, using two methods. At the first stage, using a qualitative microbiological method, the raw meat was evaluated for the presence of antimicrobial substances, then their group was determined using a NovoCyte flow cytometer. According to the results of a study on a flow cytometer, it was found that out of 10 groups of antibiotics that can be determined by the tested method, the group of lincosamides was not found in all meat samples. The most common groups of chemotherapy drugs in pork were sulfonamides – 29.6 %, tetracycline group – 18.5 % and beta-lactams – 14.8 %, and in beef aminoglycosides – 36.7 %, phenicols – 30 % and beta-lactams – 13.3 %. In poultry meat samples, the most common were sulfonamides – 23.2 %, fenicols – 23.2 %, and beta-lactams – 16 %. Five groups of antibiotics were found in all studied types of meat: fenicols, β-lactams, macrolides, polypeptide antibiotics, and quinolones. This indicates their widespread use in animal husbandry and poultry farming.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yannick Mugumaarhahama ◽  
Rodrigue Balthazar Basengere Ayagirwe ◽  
Valence Bwana Mutwedu ◽  
Nadège Cizungu Cirezi ◽  
Dieudonné Shukuru Wasso ◽  
...  

AbstractIn South-Kivu province, cattle farming is an integral component of farmers’ livelihoods and one of the few income-generating opportunities for smallholders. However, very few studies have been conducted to characterize smallholders’ cattle production systems. This study documents cattle production systems to better understand their current situation, constraints they face and opportunities they offer. For that purpose, an investigation was conducted based on a structured survey questionnaire and participatory interviews with 863 farmers in South-Kivu province. Collected data were analysed using factorial analysis of mixed data and clustering techniques. The results revealed three types of smallholder cattle farms differing mainly in their herds’ sizes and landholding. The first category is the most common and includes farmers raising small herds (6.3 ± 6.7 cattle) of local breeds in herding system (in this work, “herding system” refers to a rearing system for which the farmer drives and stays with his animals on pastures and fallow land during the day) and grazing fodder in community pastures, fallow lands and roadside grasses, while land constitutes a scarce resource. In the second category, some farmers have small tracts of land (< 5 ha) and others have large tracts (> 5 ha), but all have medium-size herds (45.1 ± 19.4 cattle) made up of local breeds, which they rear in herding system. They also exploit community pastures, fallow land and roadside fodder for animal feeding. The third and last category includes farmers with large cattle herds (78.1 ± 28.1 cattle) of local, crossbred and exotic breeds raised free range in the fenced paddocks on vast areas of land (> 5 ha) found in high-altitude regions. However, while being different according to the above-considered characteristics, the three categories of cattle farming remain extensive pastoral farms dominated by male farmers. Agriculture and/or animal husbandry are their main source of income while their livestock are also composed of goats and poultry, beside cattle. Still, the three farming groups require more inputs and improvement strategies for increased productivity in the challenging environment characterized by low land accessibility and high demand for milk and meat. Fodder cultivation and crop-livestock integration through agro-ecological systems as well as access to credit and extension services are the proposed strategies for the improvement of this economic sector.


2021 ◽  
Vol 12 (2) ◽  
pp. 191-201
Author(s):  
Ketlin Vitoria Espinosa Sandim ◽  
Stefany Areva Severo ◽  
Cláudio Becker ◽  
Adriana Carla Dias Trevisan

Este estudo buscou promover a disseminação de informações entre distintos sujeitos sociais sobre a importância ecológica da paisagem nos sistemas produtivos, tendo como tema gerador o conhecimento e reconhecimento de espécies botânicas nativas pelos agricultores familiares e educandos em Sant’Ana do Livramento-RS. Foram realizadas dezesseis entrevistas com os agricultores, que, depois de sistematizadas, delimitaram as estratégias de disseminação dos conteúdos aos jovens educandos. Os resultados demonstram que os agricultores entendem a importância da conservação do Pampa para seus cultivos e criação animal, percebem e utilizam o potencial econômico das espécies em sistemas tradicionais e agroflorestais. Quanto aos jovens educandos, foi possível avaliar a importância de oportunizar novos conteúdos e novas práticas pedagógicas. Além disso, os resultados permitem a reflexão da importância de conectar a pesquisa com a extensão universitária, bem como os saberes de adultos do campo com os saberes de jovens da cidade. Conclui-se que a troca de saberes é uma estratégia de valorização e conservação do bioma Pampa. Palavras-chave: Agroecologia; Biodiversidade; Juventude; Agroflorestas   Strategies for promoting knowledge dialogue between family farmers and students about the Pampa biome Abstract: This study sought to promote the dissemination of information between distinct social subjects about the ecological importance of the local flora in production systems. The generative theme is knowledge and recognition of native botanic species by family farmers and students in Santana do Livramento in the Rio Grande do Sul state (Brazil). Interviews with sixteen farmers were systematized and used to align strategies to disseminate content to young students. The results show that the farmers understand the importance of conservation of the Pampa for their crops and animal husbandry, perceiving the economic potential of various local species in traditional and agroforestry systems. In terms of the young students, it was possible to evaluate the importance of offering new pedagogical content and practices. The results allow a reflection on the importance of connecting research with university extension and linking the knowledge of adult farmers with young urban students. It was concluded that knowledge exchange is an important strategy for valorizing and conserving the Pampa biome. Keywords: Agroecology; Biodiversity; Youth; Agroforests


2021 ◽  
Vol 45 (1) ◽  
pp. 33-42
Author(s):  
Zibei Ren ◽  
Ming Li ◽  
Yanzhe Hui ◽  
Zengwang Ma ◽  
Jiancai Gu

Soil desertification affects the service functions of the ecosystem. In severe cases, it even causes a decline in agricultural productivity and shrinkage of animal husbandry, posing a threat to regional eco-environment and economic sustainability. The previous research on soil remediation research mainly concentrates on heavy metal degradation, saline soil improvement, and eroded and degraded soil improvement. There is little report on the biomass improvement and restoration of sandy soil. Therefore, this paper explores the remediation effect of biomass amendment on the physical-chemical performance and sustainable utilization of sandy soil in Huangyangtan, the largest sandy land in northern China’s Hebei Province. Specifically, the authors detailed the strategies to measure the physical-chemical indices and microbial diversity of Huangyangtan sandy soil, and introduced the materials and mode of the biomass amendment test on Huangyangtan sandy soil, followed by an elaboration on the test results. The influence of different test fertilizers on the soil was analyzed in four dimensions, namely, physical performance, chemical performance, biological performance, and crop yield. The results show that biomass amendment can effectively remediate sandy soil, and promote its sustainable utilization.


Author(s):  
Constanza Gutiérrez-Gómez

Abstract The livestock sector faces an important challenge in the medium and long term since it must satisfy an increasing demand for animal products as a result of the increase in population and the world economy but safeguarding natural resources and at the same time minimizing the environmental contamination, especially the greenhouse gas (GHG) emissions attributed to livestock husbandry. For Latin America and the Caribbean (LAC), this becomes more relevant given the importance of the sector for the food security of rural communities, particularly for small-scale producers. In this manuscript, we address the main challenges of LAC in this context, from a global perspective that includes the demographic, economic, cultural, and environmental effects. The biggest global challenge for the LAC livestock sector for the coming decades is how to satisfy the growing human demand for animal protein in a sustainable way maintaining the food security of their communities. The efforts to achieve these goals require focusing on improving the efficiency of both animal husbandry and production systems. Therefore, it is necessary to implement technologies of sustainable intensification and it is urgent that those who make political decisions become aware of these issues.


2020 ◽  
Vol 8 (3) ◽  
pp. 420
Author(s):  
Igor Graciano ◽  
Leopoldo Sussumu Matsumoto ◽  
Gilberto Bueno Demétrio ◽  
Erika Cosendey Toledo Mello Peixoto

Soil monitoring is fundamental to promote sustainability agroecosystems. It is necessary to consider indicators that bring together biological, physical, chemical and inter-relational attributes. Pfeiffer chromatography (PC) represents an important method for soil diagnosis, so the present study aims to analyze it in order to contribute to its validation. The soil samples of 12 production systems were evaluated in quintuplicate. The chromas were elaborated using Whatman no 4 filter paper, and the soil extract was performed by sodium hydroxide solution 1%. The results were obtained using revealing solution (AgNO3 0.5%) ascension by capillarity, and the chrome zones: central, internal, medium and external were correlated to soil penetration, chemical, biological and enzymatic parameters, respectively. Variance analysis was applied to the results that presented normal distribution and the means were compared by Scott-Knott test. T-test for Spearman correlations and principal component analysis were used to evaluate the correlations. There was negative correlation between the central zone and the average penetration resistance within the range 0-40 cm in depth. The internal, medium and external zones presented positive correlation with organic matter, carbon microbial biomass, and enzymatic activities, respectively. Quality standard features such as coloration, size and proportion of zones, presence of enzymatic clouds, peaks and radial lines were also confirmed. Thus, the standardization developed by this study contributed to validation of PC. Since PC is a low-cost and easy-to-perform method, it proves to be a useful tool allowing farmers autonomy to monitoring different agricultural systems, contributing to their production sustainable.


2020 ◽  
Vol 898 ◽  
pp. 45-50
Author(s):  
Cahyono Agus ◽  
Pita Asih Bekti Cahyanti ◽  
Bambang Suhartanto ◽  
Pipit Noviyani

The tropical ecosystem had high biomass productivity but still less in economic values. Integrated Bio-cycle Farming System (IBFS) was an alternative system that harmoniously combines agricultural sectors (agriculture, forestry, animal husbandry, fishery, plantation estate, horticulture) and non-agricultural aspects (industry, household, infrastructure, the marketplace) on integrated ecological management. The key characteristics of IBFS developed in UGM University Farm were (i) an integration of agriculture and non-agriculture sector, (ii) value of environment, esthetics and economics, (iii) rotation and diversity of plants, (iv) artificial and functional biotechnology, (v) management of closed organic cycle, (vi) ecosystem health management, (vii) agropolitan concept, (viii) specific management of plant and (ix) holistic and integrated system. The management of cycle of energy, organic matter and carbon, water, nutrient, production, crop, money conducted through 9R (reuse, reduce, recycle, refill, replace, repair, replant, rebuild, reward) to obtain optimal benefits for global environment and livelihood. The system had a sustainable multifunction and multi-product (food, feed, fuel, fiber, fertilizer, biopharma, water, energy, oxygen, edutainment, eco-tourism). They would meet the expected basic need for daily-, monthly-, yearly- and decade’s income at short-, medium- and long- term periods. IBFS was a good prospect for sustainable economic, environmental, and socio-culture aspects.


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