An Optimization Model Of Dual Purpose Cattle Production In The Humid Lowlands Of Venezuela
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An Optimization Model Of Dual Purpose Cattle Production In The Humid Lowlands Of Venezuela
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Author : Charles Frederick Nicholson
language : en
Publisher:
Release Date : 1990
An Optimization Model Of Dual Purpose Cattle Production In The Humid Lowlands Of Venezuela written by Charles Frederick Nicholson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Beef industry categories.
Climatic, nutritional, and economic constraints in the tropical ecozones of Latin America severely restrict the efficiency of specialized, intensive production of milk and beef. Dual purpose (milk and beef) cattle production systems thus have become important components of the livestock sectors of many Latin American countries. Despite their significant contribution to regional supplies of milk and beef, few studies have examined resource allocation strategies for dual purpose farms. The primary objective of this study is to examine nutritional management decisions on dual purpose farms. A multi-period linear programming (LP) model of a representative dual purpose farm in western Venezuela is developed based on the survey data of holmann (1989) and othersecondary sources. The model was used to examine constraints on dual purpose production, to evaluate alternative strategies of nutritional management, to assess the impacts of limited resources, and to analyze optimal responses to price changes resulting from government policy. The LP model selects the combination of animal inventory, forage production, feed purchases, and animal sales activities to maximize discounted net margin (total revenues less variable costs). The combination of activities is selected subject to constraints on farm resources, herd composition, and the nutritional requirements of each class of animals. The LP model represents a three-year cow replacement cycle in six periods to account for seasonal variation in forage quality and ...
Economic Evaluation Of Dairy And Dual Purpose Cattle Production Systems In Venezuela
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Author : Federico Jose Holmann
language : en
Publisher:
Release Date : 1989
Economic Evaluation Of Dairy And Dual Purpose Cattle Production Systems In Venezuela written by Federico Jose Holmann and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Cattle categories.
Production costs and net margins for straightbred and crossbred holstein herds in Venezuela. Economic return from us holstein artificial insemination sires in holstein herds in Colombia, Mexico, and Venezuela. Comparative economic returns from artificial insemination and natural service in straightbred and crossbred holstein herdes in Venezuela. Net margins predicted from diferent fraction of holstein genes in and upgrading program for venezuela. Conclusions and recommendations. Recommendation. Research needs. References. Appendix 1. Survey A (English and spanish). Appendix 2. Survey B (English and spanish). Appendix 3. Survey C (English and spanish). Appendix 4. Farm and herd, production, and economic characteristics by breed group and ecozone. Appendix 5. Average herd-year standard deviations for nature equivalente milk and percentages of herd-years within herd-year mature equivalent milk mean classes for straightbred holsteins in Colombia, Mexico, Puerto Rico, and Venezuela and for crossbred holsteins in Venezuela. Appendix 6. Net present value (PVS) sire summaries fo US holstein artificial insemination sires available in Colombia, Mexico, and Venezuela in early 1987 for daughter milk response to sire selection of .30 in Colombia and Venezuela and .55 in Mexico with a conception rate of 50% and real interest rate of 7%. Appendix 7. Response from respondent groups to rank multiple trait performance in an upgrading program form a zebu breed to holstein.
New Technologies Development And Application Iii
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Author : Isak Karabegović
language : en
Publisher: Springer Nature
Release Date : 2020-05-04
New Technologies Development And Application Iii written by Isak Karabegović and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-04 with Technology & Engineering categories.
This proceedings book features papers presented at the International Conference on New Technologies, Development and Application, held at the Academy of Sciences and Arts of Bosnia and Herzegovina in Sarajevo on 25th–27th June 2020. It covers a wide range of future technologies and technical disciplines, including complex systems such as Industry 4.0; patents in Industry 4.0; robotics; mechatronics systems; automation; manufacturing; cyber-physical and autonomous systems; sensors; networks; control; energy and renewable energy sources; automotive and biological systems; vehicular networking and connected vehicles; effectiveness and logistics systems; smart grids; nonlinear systems; power; social and economic systems; education; and IoT. The book focuses on the Fourth Industrial Revolution “Industry 4.0,” in which implementation will improve many aspects of human life in all segments and lead to changes in business paradigms and production models. Further, new business methods are emerging, transforming production systems, transport, delivery, and consumption, which need to be monitored and implemented by every company involved in the global market.
The Potential Effect Of Two New Biotechnologies On The World Dairy Industry
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Author : Lovell S Jarvis
language : en
Publisher: CRC Press
Release Date : 2019-07-11
The Potential Effect Of Two New Biotechnologies On The World Dairy Industry written by Lovell S Jarvis and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-07-11 with Science categories.
Biotechnology is expected, by many observers, to have a significant impact on the world dairy industry over the next decade. In this timely volume, Lovell Jarvis analyzes the potential effect of two biotechnologies—multiple ovulation and embryo transfers (MOET) and recombinant bovine somatotropin (rbST—on the dairy industry around the world. According to Jarvis's research, the effects of these two technologies will vary greatly between the developed and developing nations. He predicts that the technologies will be most profitable for the developed nations, where their use will increase milk production and strengthen their positions in dairy export markets. Developing country dairy sectors will probably lose from the use of these two biotechnologies, as their own international trade position will be weakened, though their own consumers should benefit. Jarvis concludes his study with a look at alternative approaches that might improve the competitive position of developing countries in the dairy sector.
The Economics Of Animal Health And Production
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Author : Jonathan Rushton
language : en
Publisher: CABI
Release Date : 2009
The Economics Of Animal Health And Production written by Jonathan Rushton and has been published by CABI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Medical categories.
The efficient functioning of the livestock sector, encompassing all facets of input supply, production, processing and marketing, is critical for food security and safety. This book draws on both extensive literature and experience in animal health economics and livestock issues in Europe, Asia, Africa and Latin America. It provides comprehensive coverage of the history of livestock and animal health economics, theory and tools for the economics of animal health and production, a review of the application of economics to animal diseases and health problems, and worldwide examples of economic analysis and policy making.
Systems Research For Optimizing Future Land Use In South And Southeast Asia
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Author : Reimund P. Roetter
language : en
Publisher: Int. Rice Res. Inst.
Release Date : 2000
Systems Research For Optimizing Future Land Use In South And Southeast Asia written by Reimund P. Roetter and has been published by Int. Rice Res. Inst. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Land use categories.
Low Cost Feeding Strategies For Dual Purpose Cattle In Venezuela
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Author : Paul Wilfred Townsend
language : en
Publisher:
Release Date : 1989
Low Cost Feeding Strategies For Dual Purpose Cattle In Venezuela written by Paul Wilfred Townsend and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Cattle categories.
Optimal Nutrition Management And Growth Strategies For Dual Purpose Cows In Venezuela And Costa Rica
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Author : Cristina Isabella Urbina
language : en
Publisher:
Release Date : 1991
Optimal Nutrition Management And Growth Strategies For Dual Purpose Cows In Venezuela And Costa Rica written by Cristina Isabella Urbina and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
Proceedings
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Author :
language : en
Publisher:
Release Date : 1957
Proceedings written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1957 with Animal nutrition categories.
Technical Efficiency Of The Dual Purpose Cattle System In Venezuela
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Author : Leonardo Ortega
language : en
Publisher:
Release Date : 2002
Technical Efficiency Of The Dual Purpose Cattle System In Venezuela written by Leonardo Ortega and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
ABSTRACT: The dual-purpose cattle system (DPCS) is the traditional cattle production system in the lowland tropics of Latin America where crossbred cattle are used for the production of milk and beef. This system is based on local and low cost inputs, but has been often considered to be inefficient due to its low partial productivity indices when compared with those used in developed countries. Few data exist about the efficiency of this system but the scant literature available is based on partial productivity indices. These indices provide useful information but do not take into account the effect of total inputs on total outputs as a measure of total efficiency. This study attempts to provide standard measurement of the technical efficiency (TE) of this system based on the concept of total factor productivity. An analysis is conducted to estimate the main determinants TE of the DPCS located in Zulia State, Venezuela.