SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Lence, Sergio H.; Hayes, Dermot J..

A dynamic three-commodity rational-expectations storage model is used to compare the impact of the Federal Agricultural Improvement and Reform (FAIR) Act of 1996 with a free-market policy, and with the agricultural policies that preceded the FAIR Act. Results support the hypothesis that the changes enacted by FAIR did not lead to permanent significant increases in the volatility of farm prices or revenues. An important finding is that the main economic impacts of the pre-FAIR scenario, relative to the free-market regime, were to transfer income to farmers and to substitute government storage for private storage in a way that did little to support prices or to stabilize farm incomes.

Optimal Grain Marketing Revisited: A German and Polish Perspective

Palavras-chave: FAIR Act; Price volatility; Storage; Agricultural and Food Policy.

Ano: 2000

URL: http://purl.umn.edu/18937

Loy, Jens-Peter; Pieniadz, Agata.

Increasing grain price volatility over the last year has revived the discussion on optimal marketing strategies. Various models of optimal grain marketing have been proposed and simulated in the literature. In this study an overview on these models is presented and critical aspects are discussed. Optimal strategies are then applied to the wheat market in Germany and Poland. Results indicate that gains from optimal marketing are rather small and uncertain in the real world, indicating that scientific assistance might be of limited importance. However, an understanding of optimization and price generating processes is likely to improve farmers’ decisions, e.g. if farmers have additional (private) information to improve price forecasts.

Economic Analysis of Alternative Maize Storage Technologies in Kenya

Palavras-chave: Grain Marketing; Storage; Germany; Poland; Agribusiness; Crop Production/Industries; Demand and Price Analysis; Industrial Organization; Marketing; Q13; D81; C15; C22.

Ano: 2009

URL: http://purl.umn.edu/51058

Kimenju, Simon Chege; De Groote, Hugo.

Upcoming technologies for maize storage have sometimes been promoted without being subjected to trials and economic analysis. In the recent past, new storage technologies, actellic super, super grain bag and the metal silo have been developed. In this paper, the results of crop loss trials are combined with measures of project worth to determine the attractiveness of investing in new storage technologies. Determination of the benefit was based on the amount of loss the new technology could abate. A one ton metal silo, with negligible % crop loss abated USD 100 in 12 months. These benefits were found to increase with time meaning that a farmer benefits by storing longer. Measures of project worth, the NPV and BCR were used to analyze the attractiveness of...

Tipo: Journal Article

Palavras-chave: Storage; LGB; Economic analysis; Kenya; Crop Production/Industries.

Ano: 2010

URL: http://purl.umn.edu/96419

Segregation of Grain Markets: Consequences for Price Behavior

McNew, Kevin; Smith, Vincent H..

The introduction of genetically modified grain and oilseed products at the farm level and resistance for these products by consumer groups have led to segmentation in grain markets. This study explores the implications for market price behavior for a segregated soybean market for genetically modified (GM) and non-GM varieties. A stochastic dynamic simulation model of production and storage is solved, and Monte Carlo simulation procedures are used to examine price behavior between GM and non-GM soybeans. The results suggest important differences in price behavior between GM and non-GM soybeans. The results obtained in the model simulations are compared with evidence from the Tokyo Grain Exchange, where non-GM and GM soybean futures contracts have traded...

Tipo: Journal Article

Palavras-chave: Genetically modified organisms; Soybeans; Storage; Demand and Price Analysis.

Ano: 2003

URL: http://purl.umn.edu/30722

CONSUMER PREFERENCES AS DRIVERS OF THE COMMON BEAN TRADE IN TANZANIA: A MARKETING PERSPECTIVE

Mishili, Fulgence J.; Temu, Anna A.; Fulton, Joan R.; Lowenberg-DeBoer, James.

The objective of this study was to determine the impact of bean grain quality characteristics on market price. The data was collected from retail markets in Tanzania. Hedonic pricing provides a statistical estimate of premiums and discounts. Implications for development of bean markets include: i) extension agents should identify cost-effective ways to educate producers on targeting urban market niches based on consumer preferences for varieties, ii) breeding for bruchid resistant beans and use of appropriate storage technologies would alleviate the problems of storage damage, and iii) requiring a portfolio of grain quality characteristics to fit consumer preferences in local markets.

Tipo: Working or Discussion Paper

Palavras-chave: Beans; Markets; Consumer preferences; Hedonic; Storage; Tanzania; Consumer/Household Economics; Demand and Price Analysis; Marketing; D12; Q13.

Ano: 2009

URL: http://purl.umn.edu/48644

THE SUPPLY OF STORAGE UNDER HETEROGENEOUS EXPECTATIONS

LOGÍSTICA INTERNA DE FRUTAS, LEGUMES E VERDURAS (FLV) EM SUPERMERCADOS: UM ESTUDO MULTICASOS EM CAMPO GRANDE/MS.

Frechette, Darren L..

Expected prices for storable commodities often lie below spot prices plus interest and marginal storage charges. Recently this gap has been explained as the value of a call option held by a representative storer whenever a positive probability exists that stocks could dwindle to zero. However, the probability of an aggregate stock-out is effectively zero in most markets most of the time. This paper presents an alternative model that explains the gap as an equilibrium between fundamentals traders and noise traders. Applications of the model suggest that rational agents make up 84 percent of the U.S. copper market, and more than 95 percent of the corn and wheat markets.

Tipo: Journal Article

Palavras-chave: Storage; Heterogeneous expectations; Noise traders; Marketing.

Ano: 1999

URL: http://purl.umn.edu/15149

Campeao, Patricia; Oliveira, Leidy Diana Souza De; Watanabe, Eluiza Alberto de Morais; Ramos, Gessica Genevieve Lopes.

A presente pesquisa tem como objeto de investigação o sistema de logística interna de FLV em supermercados. Estabeleceu-se como objetivo geral caracterizar as operações logísticas internas de FLV utilizadas pelos supermercados. Especificamente: a) identificar as atividades e fluxos da logística interna nas organizações supermercadistas; b) apresentar as diferenças básicas entre os modelos de gestão interna de logística em supermercados de pequeno, médio e grande porte; c) identificar as políticas de compra, armazenamento e distribuição que podem ser adotados pelos supermercados com relação à gestão de FLV. O estudo desta temática justifica-se pela necessidade de se conhecer as melhores práticas de gerenciamento logístico interno. A metodologia utilizada...

Cost Analysis of Alternative Harvest and Storage Methods for Switchgrass in the Southeastern U.S.

Palavras-chave: FLV; Seleção; Armazenamento; Logística interna; Supermercados; Selection; Storage; Intern logistic; Supermarkets; Agribusiness.

Ano: 2008

URL: http://purl.umn.edu/114164

Larson, James A.; Mooney, Daniel F.; English, Burton C.; Tyler, Donald D..

This study evaluated the potential impacts of dry matter losses from alternative harvest and storage methods on the costs of growing switchgrass for energy production. Data from a switchgrass bale harvest and storage experiment at Milan, TN, indicate that storage losses for covered rectangular bales were greater than for covered round bales. In addition, the cost of delivered feedstock increased with longer storage times because of larger dry matter losses. Even though storage losses were higher with uncovered large round bales, production costs were the lowest because costs of storage were minimal compared to other storage methods.

Consumer preferences as drivers of the common bean trade in Tanzania: A marketing perspective

Palavras-chave: Bioenergy; Dry matter loss; Storage; Production Economics; D20; D21; D81; D86; Q13; Q42; P42.

Ano: 2010

URL: http://purl.umn.edu/56518

Mishili, Fulgence J.; Temu, Anna A.; Fulton, Joan R.; Lowenberg-DeBoer, James.

Tipo: Journal Article

Palavras-chave: Beans; Markets; Consumer preferences; Hedonic; Storage; Tanzania; Marketing; D12; Q13.

Ano: 2009

URL: http://purl.umn.edu/48658

Light and storage on the germination of spores of Dicksonia sellowiana (Presl.) Hook., Dicksoniaceae

FIILIPPINI,ELAINE CRISTINA DE PAULA; DUZ,SONIA REGINA; RANDI,ÁUREA MARIA.

Spores of Dicksonia sellowiana are positively photoblastic and reach the maximum percentage of germination at 23 ± 2°C in white light after seven days of imbibition. The pre-induction phase for spores induced by white or red light for 24 hours was 72 hours. Gametophytes grown in white light were plane and bidimensional, while those grown under red light were filamentous. The higher the number of hours of light applied per day during 10 days, the higher the percentage of germination. Germination was higher for long white light treatments applied on a daily basis. The effect of different light intensities on germination was also investigated here. The lower percentages of germination were observed for spores kept under 43% and 2% of full sunlight, while...

Germination of spores and growth of gametophytes and sporophytes of Rumohra adiantiformis (Forst.) Ching (Dryopteridaceae) after spore cryogenic storage

Palavras-chave: Fern germination; Gametophytes; Light; Storage.

Ano: 1999

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000100004

Brum,Francis Maria Rocho de; Randi,Aurea Maria.

Rumohra adiantiformis (Forst.) Ching is a fern (Dryopteridaceae) used in floral arrangements. Spores sterilized in 15% (v/v) solution of commercial sodium hypochlorite for 10 minutes and unsterilized spores were plunged in liquid nitrogen and held for 15 minutes and for 90 days. After the cryogenic treatments, spores were taken out of liquid nitrogen and rapidly thawed out in a water bath or slowly at room temperature and were cultured in Mohr's mineral solution as modified by Dyer, kept at 25 ± 2 ºC and a 16-hours photoperiod. Statistical differences were not observed in the germination of unsterilized spores immersed or not immersed in liquid nitrogen, but when the spores were previously sterilized, a severe inhibition of germination was observed in...

Effects of moisture content and temperature during storage on germination of the achenes of Bidens gardneri Baker

Palavras-chave: Liquid nitrogen; Rumohra; Storage.

Ano: 2006

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042006000300016

RONDON,JOSIMARA N.; SASSAKI,REGINA M.; ZAIDAN,LILIAN B.P.; FELIPPE,G.M..

Bidens gardneri is a herbaceous species of the cerrados, whose seeds are light sensitive at 25 °C, but they become indifferent to light when stored in soil. In this work the effects of moisture content, temperature and light (during storage) upon light sensitivity during germination were studied. Ripe achenes were collected in the cerrados of Itirapina and Moji Guaçu, State of São Paulo, Brazil. The storage conditions of the achenes varied in each experiment. Achenes were stored in darkness or light, in closed bottles, at 4 °C, 20/30 °C or 25 °C. Achenes were imbibed for 24 h at 4 °C, 25 °C or 20/30 °C (in darkness) and then stored for 1, 10, 20, 30 and 40 days (40 days only for 4 °C and 25 °C). Germination tests were conducted at 25 °C and 20/30 °C. The...

Effects of light stress on the growth of the epiphytic orchid Cattleya forbesii Lindl. X Laelia tenebrosa Rolfe

Palavras-chave: Cerrado; Light sensitivity; Storage; Moisture content; Temperature.

Ano: 2001

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000100004

STANCATO,GIULIO C.; MAZZAFERA,PAULO; BUCKERIDGE,MARCOS S..

Considering the performance of CAM epiphytes under high levels of radiation or in shaded environments, with growth rate proportional to light intensity, the objective of this work was to evaluate the effects of long-term light stress on the growth of a Brazilian epiphytic orchid, Cattleya forbesii Lindl. X Laelia tenebrosa Rolfe. Two groups of plants were used in the first experiment, one under 90% (<FONT FACE=Symbol>@</FONT> 1,650 µmol.m-2.s-1) of Photosynthetically Active Radiation (PAR) and the other maintained under 22.5% (<FONT FACE=Symbol>@</FONT> 400 µmol.m-2.s-1). In the second experiment the diffusive resistance, transpiration rate and fluorescence levels were monitored for plants that were under 22.5% of PAR, under 90% and...

Germinação de sementes de Matelea maritima (Jack.) Woods (Asclepiadaceae)

Palavras-chave: Photoinhibition; Storage; Orchids; Pseudobulb.

Ano: 2002

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002000200011

CUZZUOL,GERALDO ROGÉRIO FAUSTINI; LUCAS,NEIDE M. C..

Sementes de M. maritima germinam na temperatura ótima de 25°C com valores máximos na luz, sendo o processo otimizado em temperatura alternada de 25/30°C. Escarificação mecânica promove a germinação. Em sementes nuas, a germinação é promovida e acelerada tanto na luz quanto no escuro. Temperatura de armazenamento e tempo de estocagem alteram a fotossensibilidade das sementes: sementes estocadas à temperatura ambiente por 90 dias perdem o fotoblastismo positivo enquanto que nas estocadas sob baixa temperatura (10°C) este efeito permanece. O teste do tetrazólio demonstra que aos 180 dias de estocagem 46% das sementes permaneceram viáveis. Análises topoquímicas indicam que a principal fonte de reserva destas sementes, localizada nos cotilédones, é proteica.

Effect of egg storage length on hatchability and weight loss in incubation of egg and meat type Japanese quails

Palavras-chave: M. maritima; Propagation; Restingas; Storage; Light; Scarification.

Ano: 1999

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000100001

Romao,JM; Moraes,TGV; Teixeira,RSC; Cardoso,WM; Buxade,CC.

The quail raising in Brazil has increased through the last years and the incubation procedures are important to maintenance and improvement of quail egg production. To obtain a sufficient number of eggs to fill an incubator, eggs are usually accumulated in storage over a period from 1 day up to 3 weeks before incubation. The objective of this research was to verify the effect of egg storage on hatchability and egg weight loss for two lineages of Japanese quails. Sixty four Japanese quails were divided in two groups: G1 (n=32) for meat production and G2 (n=32) for egg production. They were used for serial egg collections that were performed every day, during 15 consecutively days, totaling 600 eggs. After collection they were placed in refrigerated room...

Effect of dietary organic selenium and zinc on the internal egg quality of quail eggs for different periods and under different temperatures

Palavras-chave: Egg weight loss; Incubation; Japanese quail; Storage.

Ano: 2008

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000300001

Fernandez,IB; Cruz,VC; Polycarpo,GV.

The objective of this study was to evaluate the internal quality of eggs of Japanese quails fed diets supplemented with chelated selenium and zinc. The experiment was carried out for 120 days, and 144 birds were divided in random blocks into four treatments (control; 0.3 ppm Se; 60 ppm Zn and 0.3 ppm Se + 60 ppm Zn). Ten, 14, 18, and 22 weeks after the beginning of lay, eggs were collected and stored under two different temperatures (environmental temperature or refrigeration) and for 10, 20, and 30 days. Eggs were analyzed for: Haugh units (HU), albumen height (AH), yolk index (YI), and albumen index (AI). Parameters were only statistically influenced by the interaction between dietary treatment and storage time. It was concluded that the addition of...

Determination of the Quality and Shelf Life of Sous Vide Cooked Turkey Cutlet Stored at 4 and 12ºC

Palavras-chave: Eggs; Organic trace minerals; Quails; Storage; Temperature.

Ano: 2011

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000100006

Akoğlu,IT; Bıyıklı,M; Akoğlu,A; Kurhan,Ş.

ABSTRACT The aim of this study was to determine the quality and shelf life of sous vide turkey cutlet stored at 4 and 12ºC. Samples were packaged under vacuum into polyamide-polypropylene pouches, cooked using sous vide technology (65ºC/40 min), chilled at 3ºC and stored at 4 and 12ºC for 5 weeks. Microbial (TMAB, lactic acid bacteria, Enterobacteriaceae, moulds and yeasts, Salmonella spp., L. monocytogenes, Cl. perfringens), physical-chemical (pH, water activity, TBARS, L*a*b* colour, texture profile analysis and shear force) and sensory (appearance, colour, odour, flavour, juiciness, chewiness and acceptance) parameters were determined. According to the results of mesophilic bacterial counts and sensory analysis, the shelf life of the sous vide turkey...

Trace Mineral Sources and Rosemary Oil in the Diet of Brown Laying Hens: Egg Quality and Lipid Stability

Palavras-chave: Sous vide (SV); Storage; Turkey cutlet; Cooking; Food preservation..

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000100001

Batista,NR; Garcia,ERM; Oliveira,CAL; Arguelo,NN; Souza,KMR.

ABSTRACT Two experiments were carried out to evaluate the effects of rosemary oil (RO) and trace mineral sources (MS) on the internal quality and lipid stability of brown layer eggs. The treatments consisted of diets supplemented with two trace mineral sources (inorganic or organic) and three levels (0, 100, or 200 mg kg-1) of rosemary oil (RO), and three egg storage times. Eggs were stored at a controlled temperature (CT; 25.0ºC) in Experiment I and under refrigeration (RT; 5.0ºC) in Experiment II. The following parameters were analyzed on days 0 (fresh), 15 and 30 of storage: malonaldehyde level (MDA), egg weight (EW), Haugh unit (HU), yolk index (YI), albumen and yolk pH, raw yolk color (RYC), and egg weight loss. Data were analyzed according to...

Effects of inverting the position of layers eggs during storage on hatchery performance parameters

Palavras-chave: Chelated trace minerals; Lipid oxidation; Malonaldehyde; Rosmarinus officinalis; Storage.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000400663

Lima,JCS de; Silva,PL; Coelho,LR; Borges,MS; Freitas,AG de; Fonseca,BB.

Storing hatchable eggs is a common practice in commercial hatcheries. However, storage time may negative effects on several performance parameters. An experiment was carried out to evaluate inverting egg position during storage of eggs laid by young and old layer breeders. Fertile eggs of 32 and 58-week-old breeders were stored for seven, 14, and 21 days at 18ºC ± 2ºC and 80% ± 10% relative humidity (RU). The following parameters were evaluated: egg weight loss, hatchability and hatchling weight, and embryodiagnosis results. Eggs stored with the small end up lost less weight during storage compared with the control eggs. Storing eggs for 14 days with the small end up reduced early embryo mortality, improving hatchability. In addition, hatchling weight...

Physical-Chemical and Sensorial Quality of Eggs Coated With Copaiba Oil Biofilm and Stored At Room Temperature for Different Periods

Palavras-chave: Storage; Layer breeders; Hatchling weight; Egg position; Hatchery performance.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000400003

Brasil,RJM; Cruz,FGG; Rufino,JPF; Oliveira Filho,PA; Freitas,BKM; Viana Filho,GB.

ABSTRACT The present study aimed at evaluating the effects of a coating based on copaiba oil on the quality of eggs stored for different periods. Eggs were coated with copaiba oil solutions (4, 8, 12, 16, or 20% copaiba oil) or not (control) and stored for 1, 7, 14, 21, 28 or 35 days at room temperature. The following parameters were evaluated: egg weight loss, egg components (albumen, yolk, and eggshell) relative weights, egg specific gravity, Haugh units, eggshell quality, and sensorial attributes. Eggs stored for 35 days presented the highest weight losses. Coating (20% copaíba oil solution) reduced egg weight loss up to 41.02%. Coated eggs presented better internal quality (yolk and albumen heights, specific gravity, and eggshell strength). Sensorial...