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Registros recuperados: 4
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Economic Value of Selecting and Marketing Cattle by Leptin Genotype AgEcon
Lusk, Jayson L..
Recent research has identified genetic diversity in the ability of animals to manufacture and recognize leptin, a protein that regulated appetite and weight. This paper determines the economic value of using information on leptin genotype to select and manage beef cattle. Results reveal that the economic value of using genotypic information to sort cattle by optimal endpoint is only about $2/head for steers and $1/head for heifers; however, the value of using genotypic information to optimally select and feed only certain genotypes is $23/head for steers and $28/head for heifers. The difference in per head profit between the best and worst performing genotype is over $28 on the date the cattle were actually marketed and increases to $60 if each genotype is...
Tipo: Journal Article Palavras-chave: Cattle marketing; Days on feed; Genetics; Growth models; Leptin; Value of information; Livestock Production/Industries.
Ano: 2007 URL: http://purl.umn.edu/8641
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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
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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
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IMPACT OF ALTERNATIVE GRID PRICING STRUCTURES ON CATTLE MARKETING DECISIONS AgEcon
Greer, Heather C.; Trapp, James N..
Quality grade, yield grade, and other feedlot performance factors explain much of the variation in profit under grid pricing. Thus, feedlot owners can change profits by adjusting time on feed to influence these performance factors. This research uses growth models, logistic regression, and an optimization process to determine how the optimal number of days on feed changes under different grid pricing structures. It was found that large quality or small yield discounts increases the optimal number of days on feed and small quality or large yield discounts result in fewer days on feed. Losses associated with a grid having large quality discounts are minimized as cattle fed for more days are able to obtain Choice premiums despite the discounts for more Yield...
Tipo: Conference Paper or Presentation Palavras-chave: Grid pricing; Profits; Animal growth; Logistic regression; Days on feed; Livestock Production/Industries; Marketing.
Ano: 2000 URL: http://purl.umn.edu/18926
Registros recuperados: 4
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