U.S. Geological Survey-Ingeominas Mineral Resource Assessment of Colombia PDF Download
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Author:
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 700
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Book Description
Author:
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 700
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Book Description
Author: Donald Singer
Publisher: OUP USA
ISBN: 0195399595
Category : Business & Economics
Languages : en
Pages : 232
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Book Description
This book provides a normative framework for making decisions concerning mineral resource exploration under conditions of uncertainty.
Author:
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ISBN:
Category : Geology
Languages : en
Pages : 518
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Author:
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ISBN:
Category : Geology
Languages : en
Pages : 360
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Author:
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ISBN:
Category : Government publications
Languages : en
Pages : 798
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Book Description
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages :
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Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author:
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ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 784
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Book Description
Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Ore deposits
Languages : en
Pages : 114
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Book Description
Author: S. Jeffress Williams
Publisher:
ISBN:
Category : Coast changes
Languages : en
Pages : 352
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Book Description
Author: Lawrence J. Drew
Publisher: Springer
ISBN: 1461558611
Category : Science
Languages : en
Pages : 219
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Book Description
""" This book has been written as a guide to the management and use of formulated feeds in intensive fish and shrimp culture. While its focus is on the use of commercially pro duced feeds in intensive production systems, it is anticipated that many of the practical issues covered will be of equal interest to those fish farmers who make their own feeds and to those who use formulated feeds in less intensive systems. Feeds and feeding are the major variable operating costs in intensive aquaculture and the book is primarily in tended to aid decision making by fish farm managers in areas of feeding policy. The dramatic increases in aquaculture production seen over the past 15 years have been made possible, in large part, by gains in our understanding of the food and feed ing requirements of key fish and shrimp species. A global aquaculture feeds industry has developed and a wide range of specialist feeds is now sold. The new options in feeds and feeding systems, which are becoming available, necessitate continual review by farmers of their feeding policies, where choices must be made as to appropriate feed types and feeding methods. While growth rates and feed conversion values are the prime factors of interest to farmers, other important issues, such as product qualiry and environmental impacts of farm effluents, are also directly related to feed management practices.
