{"title":"Transformation of N, P and organic matter during paddy straw decomposition with and without rock phosphate","authors":"R.D. Singh, D.V. Yadav","doi":"10.1016/0141-4607(86)90118-6","DOIUrl":"https://doi.org/10.1016/0141-4607(86)90118-6","url":null,"abstract":"","PeriodicalId":100062,"journal":{"name":"Agricultural Wastes","volume":"18 3","pages":"247-251"},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0141-4607(86)90118-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90026496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A method for the production of the brine shrimp, Artemia salina leach, in a manure-based system","authors":"Matthew Landau , Christine Bolis, Garret Miyamoto","doi":"10.1016/0141-4607(86)90039-9","DOIUrl":"10.1016/0141-4607(86)90039-9","url":null,"abstract":"<div><p>A two-step method is described in which cattle manure is added to seawater and the resulting elutriate is used for the mass culture of two species of algae—<em>Tetraselmis</em> sp. and <em>Chaetoceros gracilis</em>—and the algae are then fed to the brine shrimp, <em>Artemia salina</em>. An initial biomass of 190 g of brine shrimp increased to 2500 g in 14 days. The system is simple to construct and manage, and may serve as a model for other systems used to support aquaculture facilities or may stand by itself if devoted to the tropical fish hobbyist market.</p></div>","PeriodicalId":100062,"journal":{"name":"Agricultural Wastes","volume":"15 2","pages":"Pages 79-83"},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0141-4607(86)90039-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77087648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A nutritional evaluation of farm waste grown and axenically cultured algal biomass","authors":"J.J. Strain , H.J. Fallowfield , T.W. Fraser, M.K. Garrett","doi":"10.1016/0141-4607(86)90022-3","DOIUrl":"10.1016/0141-4607(86)90022-3","url":null,"abstract":"<div><p>Algal biomass produced in an outdoor pilot plant facility for the treatment of the liquid phase of pig slurry was nutritionally evaluated together with <em>Chlorella vulgaris</em> 211/le produced axenically in defined media in laboratory chemostats. Data from amino acid analyses showed that the sulphur-containing amino acids were limiting. Digestibility, net protein utilisation and biological values of the algal products were assayed. <em>In vivo</em> and <em>in vitro</em> enzymic digestions were monitored by transmission electron microscopy. Although the cell wall was only partially digested, the cell contents, and especially the pyrenoid, were extensively digested in several treatments. The most indigestible components of the cell may be the membranes of the chloroplast. It is suggested that the absence of sporopollenin from the cell wall of this alga may be responsible for the high nitrogen digestibility of the laboratory-produced material. The waste-grown algal biomass contained appreciable amounts of algal species other than <em>C. vulgaris</em> 211/le which may have contributed to the lower digestibility of this material.</p></div>","PeriodicalId":100062,"journal":{"name":"Agricultural Wastes","volume":"15 4","pages":"Pages 235-252"},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0141-4607(86)90022-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86132018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rice husk biodegradation by Pleurotus ostreatus to produce a ruminant feed","authors":"Shahjahan Beg, Saeed Iqbal Zafar, F.H. Shah","doi":"10.1016/0141-4607(86)90145-9","DOIUrl":"https://doi.org/10.1016/0141-4607(86)90145-9","url":null,"abstract":"<div><p><em>Pleurotus ostreatus</em> possesses an efficient ligninolytic system. Rice husk fermented in solid-state conditions, using this white rot fungus, had enhanced nutritive value. The protein content increased by 332% whereas the crude fiber, cellulose and lignin decreased by 35·4%, 19·7% and 40·9%, respectively. The <sub>vivo</sub> (reticulo rumen) digestibility of the fermented rice husk was 79·4% more than the non-fermented substrate.</p></div>","PeriodicalId":100062,"journal":{"name":"Agricultural Wastes","volume":"17 1","pages":"Pages 15-21"},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0141-4607(86)90145-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91605087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Laminar tube flow of sieved beef-cattle manure slurries","authors":"Y.R. Chen","doi":"10.1016/0141-4607(86)90124-1","DOIUrl":"https://doi.org/10.1016/0141-4607(86)90124-1","url":null,"abstract":"<div><p>The rheological properties of beef-cattle manure slurries were studied using a tube viscometer. The previously proposed rheological model (Che, 1986) is used to describe the relationship between the shear stress and shear rate at the tube wall. The results are compared with those obtained with a rotational viscometer. A modified Reynolds number is defined and used to relate to the friction loss of the laminar flow in the tube. The Reynolds numbers where the laminar flow region terminated are also discussed.</p></div>","PeriodicalId":100062,"journal":{"name":"Agricultural Wastes","volume":"15 1","pages":"Pages 35-49"},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0141-4607(86)90124-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91635137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Influence of gaseous phase, light and substrate pretreatment on fruit-body formation, lignin degradation and in vitro digestibility of wheat straw fermented with Pleurotus spp.","authors":"D.N. Kamra , F. Zadražil","doi":"10.1016/0141-4607(86)90103-4","DOIUrl":"10.1016/0141-4607(86)90103-4","url":null,"abstract":"<div><p>Wheat straw was fermented in the solid state with <em>Pleurotus sajor-caju</em> and <em>P. eryngii</em> at 25°C under different concentrations of oxygen and carbon dioxide. Lower than 20% oxygen in the gaseous phase adversely affected the loss of organic matter, the lignin degradation and the change in straw digestibility with both species of <em>Pleurotus</em>. Higher concentrations (10%–30%) of carbon dioxide, with 20% oxygen in the atmosphere, slightly decreased the loss of lignin and organic matter when compared with the losses under oxygen or air. In spite of better lignin degradation by <em>P. sajor-caju</em>, the process efficiency with <em>P. eryngii</em> was higher, because of lower loss of organic matter during the fermentation. Fruit-bodies were not formed by <em>P. eryngii</em> during the period of experiment in any of the treatments.</p><p>In <em>P. sajor-caju</em>, fruit-bodies were only formed either in flasks closed with cotton plugs or supplied with continuous flow of sterile air. Carbon dioxide inhibited the process of primordia initiation and fruit-body development. A short exposure (20 min day<sup>−1</sup>) to light was essential for primordia and fruit-body formation. The substrate changes and process efficiency with respect to increase in digestibility were much higher in darkness than in light. Light leads to intensive fruit-body production and a different pattern of substrate degradation. The indigenous microflora of wheat straw inhibited fruit-body formation and caused a higher organic matter loss, accompanied by a decrease in digestibility of the fermented wheat straw.</p></div>","PeriodicalId":100062,"journal":{"name":"Agricultural Wastes","volume":"18 1","pages":"Pages 1-17"},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0141-4607(86)90103-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86959609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of aeration and soil inoculum on the composition of palm oil mill effluent (POME)","authors":"P. Agamuthu, E.L. Tan, A.A.A. Shaiful","doi":"10.1016/0141-4607(86)90043-0","DOIUrl":"10.1016/0141-4607(86)90043-0","url":null,"abstract":"<div><p>Aerobic pretreatment of palm oil mill effluent (POME) greatly reduces the C, NO<sub>3</sub>N and NH<sub>4</sub>N content of POME but increases the organic N and pH. Results obtained indicated that pretreatment of POME before land application would reduce the risk of waterway pollution from runoff. The aerobic pretreatment would also make more organic N available to plants. Application of pretreated POME, which was alkaline in nature, to acidic soil would be an added advantage. The changes in the composition of the POME occurred faster at 37°C than at 25°C or 4°C.</p></div>","PeriodicalId":100062,"journal":{"name":"Agricultural Wastes","volume":"15 2","pages":"Pages 121-132"},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0141-4607(86)90043-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85730788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}