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	Provedor de dados AgEcon (3) Scientia Agricola (1) Autor Hennessy, David A. (2) Behbahani,Mandana (1) Fox, John A. (1) Hessami,Mohamad Javad (1) Lusk, Jayson L. (1) Shanehsazzadeh,Mehrnaz (1) Mais... Palavra-chave Growth hormones (4) Days on feed (2) Energy use (2) Feed ban (2) Livestock Production/Industries (2) Veal market (2) Beef (1) Carotene (1) Contingent valuation (1) Demand and Price Analysis (1) Genetically modified foods (1) Kleiber's law (1) Maintenance requirements (1) Mandatory labeling (1) Phytochemical (1) Plant micropropagation (1) Powderpuff tree (1) Ration density (1) Ration energy density (1) Research and Development/Tech Change/Emerging Technologies (1) Mais... Tipo do documento Journal Article (2) Info:eu-repo/semantics/article (1) Working or Discussion Paper (1) Ano 2011 (1) 2006 (1) 2005 (1) 2002 (1) País United States (3) Brazil (1) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Feeding and the Equilibrium Feeder Animal Price-Weight Schedule AgEcon Hennessy, David A.. The feeder animal price is a derivative in the sense that its value depends upon the price of animals for the consumption market. It also depends upon the biological growth technology and feed costs. Daily maintenance costs are of particular interest to the husbander because they can be avoided through accelerated feeding. In this paper, the optimal feeding path under equilibrium feeder animal prices is established. This analysis is used to gain a better understanding of feeding decisions, regulation in feedstuff markets, and the consequences of genetic innovations. It is shown that days on feed can increase or decrease with a genetic innovation or other improvement in feed conversion efficiency. The structure of comparative prices for feeder animals at... Tipo: Working or Discussion Paper Palavras-chave: Days on feed; Energy use; Feed ban; Growth hormones; Maintenance requirements; Ration energy density; Veal market; Livestock Production/Industries. Ano: 2005 URL: http://purl.umn.edu/18468 CONSUMER DEMAND FOR MANDATORY LABELING OF BEEF FROM CATTLE ADMINISTERED GROWTH HORMONES OR FED GENETICALLY MODIFIED CORN AgEcon Lusk, Jayson L.; Fox, John A.. This study estimates the value of policies that would mandate labeling of beef from cattle produced with growth hormones or fed genetically modified corn. At no cost, 85 percent of resondents desired mandatory labeling of beef produced with growth hormones and 64 percent of respondents preferred mandatory labeling of beef fed genetically modified corn. Estimates suggest that consumers would be willing to pay 17.0 percent and 10.6 percent higher prices for beef on average to obtain information provided via mandatory labeling about whether the beef is from cattle produced with growth hormones or fed genetically modified corn, respectively. Tipo: Journal Article Palavras-chave: Beef; Contingent valuation; Genetically modified foods; Growth hormones; Mandatory labeling; Demand and Price Analysis; Research and Development/Tech Change/Emerging Technologies. Ano: 2002 URL: http://purl.umn.edu/15506 Feeding and the Equilibrium Feeder Animal Price-Weight Schedule AgEcon Hennessy, David A.. Feeder animal prices depend on fed animal prices, the biological growth technology, and feed costs. In addition, daily maintenance costs can be avoided through accelerated feeding. These observations allow us to model optimal feeding under equilibrium feeder animal pricing. Our model enables a better understanding of regulation in feedstuff markets. The feeder animal price-weight schedule is likely decreasing and convex in weight. Prices for animals with better growth potential should be less sensitive to feed and fed animal prices. Prices for lighter animals should be more sensitive to these prices. Regression analyses on Southern Great Plains cattle prices provide support for this model. Tipo: Journal Article Palavras-chave: Days on feed; Energy use; Feed ban; Growth hormones; Kleiber's law; Ration density; Veal market; Livestock Production/Industries. Ano: 2006 URL: http://purl.umn.edu/8609 Optimization of callus and cell suspension cultures of Barringtonia racemosa (Lecythidaceae family) for lycopene production Scientia Agricola Behbahani,Mandana; Shanehsazzadeh,Mehrnaz; Hessami,Mohamad Javad. Lycopene is present in a range of fresh fruits and vegetables, especially in the leaves of Barringtonia racemosa. The traditional lycopene extraction from the plant is being employed instead of an easy propagation technique like cell culture process from the leaf explants. We intend to assess how lycopene could be extracted via tissue culture under light (illuminance: 8,200 lux under white fluorescent lamps, photoperiod 16 h per day at 25ºC) and dark. Leaf explants of Barringtonia racemosa were cultured on modified Murashige and Skoog (MS), Woody Plant Medium (WPM) and B5 media, supplemented with different concentrations of 2,4-Dichlorophenoxyacetic acid (2,4-D). Optimal conditions for callus induction and maintenance under both dark and light were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Powderpuff tree; Carotene; Phytochemical; Plant micropropagation; Growth hormones. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000100011 Registros recuperados: 4 Primeira ... 1 ... Última

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