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Author :
Publisher :
ISBN 13 : 9780642941817
Total Pages : 80 pages
Book Rating : 4.9/5 (418 download)
Download or read book A Computer Model Simulating Extensive Beef Cattle Production Systems written by and published by . This book was released on 1974 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thomas H Spreen
Publisher : CRC Press
ISBN 13 : 1000239616
Total Pages : 269 pages
Book Rating : 4.0/5 (2 download)
Download or read book Simulation Of Beef Cattle Production Systems And Its Use In Economic Analysis written by Thomas H Spreen and published by CRC Press. This book was released on 2019-07-11 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: Economic analysis of beef cattle production has been limited by the inability to fully describe the underlying production process. Except for confined feeding of cattle, beef cattle production is the process of growing cattle who consume forages. The animal and the forage possess attributes of both factors and products of production. The production of forage constitutes one production process, animal growth is another production process, and reproduction by female animals is a third production process. Cattle production involves all three processes in such a manner that each influences the outcome of the other. Each process is itself complex and analysis is further complicated when all three are considered simultaneously.
Author : Joel Martin Levine
Publisher :
ISBN 13 :
Total Pages : 570 pages
Book Rating : 4.:/5 (193 download)
Download or read book Computer Simulation of Beef Cattle Production Systems in the Llanos of Colombia written by Joel Martin Levine and published by . This book was released on 1979 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joel Martin Levine
Publisher :
ISBN 13 :
Total Pages : 570 pages
Book Rating : 4.:/5 (913 download)
Download or read book Computer Simulation of Beef Cattle Production Systems in the Llanos of Columbia written by Joel Martin Levine and published by . This book was released on 1979 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: A simulation model capable of execution on a programmable calculator was developed to study voluntary intake, liveweight change, and fertility of grade Zebu cows in the Llanos of Colombia. Organic nitrogen in the diet and meta bolic weight were used to predict intake; age, liveweight, and energy concentration were the driving variables for the maintenance prediction equation. Energy concentration was calculated as a function of crude protein and digestible organic matter, and liveweight change was predicted as a function of intake, maintenance, liveweight, and energy concentration. Multiplicative correction factors were fitted from data obtained from cow-calf experiments to adjust intake and maintenance for the effects of burning the native savanna, compensatory gain, mineral deficiency, and lactation and gestation. The correction factors were .89 for intake after burning the native savanna, 1.05 and .95 for intake and maintenance during compensatory gain, and .90 for reduced intake due to mineral deficiency. Correction factors for physiological status were 1.20 for intake during early and late lactation, and 1.40, 1.32, and 1.05 for maintenance during early lactation, late lactation, and late gestation, respectively. The correction factors for burning and compensatory gain were fitted against data from dry cows of Herds 4-5 of the Herd Systems Experiment (HSE) and yielded a Pearsonian correlation coefficient of .95 (p
Author : Thomas H Spreen
Publisher : CRC Press
ISBN 13 : 100031149X
Total Pages : 283 pages
Book Rating : 4.0/5 (3 download)
Download or read book Simulation Of Beef Cattle Production Systems And Its Use In Economic Analysis written by Thomas H Spreen and published by CRC Press. This book was released on 2019-07-11 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Economic analysis of beef cattle production has been limited by the inability to fully describe the underlying production process. Except for confined feeding of cattle, beef cattle production is the process of growing cattle who consume forages. The animal and the forage possess attributes of both factors and products of production. The production of forage constitutes one production process, animal growth is another production process, and reproduction by female animals is a third production process. Cattle production involves all three processes in such a manner that each influences the outcome of the other. Each process is itself complex and analysis is further complicated when all three are considered simultaneously.
Author : Jerome Frank Baker
Publisher :
ISBN 13 :
Total Pages : 135 pages
Book Rating : 4.:/5 (71 download)
Download or read book Evaluation of Genotype-environment Interactions in Beef Cattle Production Systems Using a Computer Simulation Model written by Jerome Frank Baker and published by . This book was released on 1982 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evaluation of genotype environment interactions in beef cattle production systems using a computer simulation model.
Author : Robert William Brennan
Publisher :
ISBN 13 :
Total Pages : 288 pages
Book Rating : 4.:/5 (131 download)
Download or read book The Application of Computer Simulation and Mathematical Modeling Techniques in Feedlot Beef Cattle Production and Research written by Robert William Brennan and published by . This book was released on 1985 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hava E. Kahn
Publisher :
ISBN 13 :
Total Pages : 266 pages
Book Rating : 4.:/5 (593 download)
Download or read book The Development of a Simulation Model and Its Use in the Evaluation of Cattle Production Systems written by Hava E. Kahn and published by . This book was released on 1982 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Heraldo O. Fujita
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (125 download)
Download or read book Computer Simulation of Beef Production Systems in the Argentine written by Heraldo O. Fujita and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : ILRI (aka ILCA and ILRAD)
ISBN 13 :
Total Pages : 110 pages
Book Rating : 4./5 ( download)
Download or read book Cattle Herd Dynamics: An Integer and Stochastic Model for Evaluating Production Alternatives written by and published by ILRI (aka ILCA and ILRAD). This book was released on with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : N. de Ridder
Publisher : ILRI (aka ILCA and ILRAD)
ISBN 13 :
Total Pages : 366 pages
Book Rating : 4./5 ( download)
Download or read book Modelling of Extensive Livestock Production Systems written by N. de Ridder and published by ILRI (aka ILCA and ILRAD). This book was released on 1986-01-01 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: ILCA's policy towards modelling in the framework of livestock systems research; models and the analysis of productivity in extensive livestock systems in Israel; prediction of actual primary production under nitrogen limitation; behavioural aspects of intake at pasture in ruminats; prediction of feed intake in ruminats; relationships between chemical composition and voluntary intake of feeds by sheep and cattle; the effect of breeding season duration on production and feed consumption in grazing beef cattle in the south of Israel; adaptation of the Kahan model for a mixed farming system in southeastern Asia; appraisal of the ILCA cattle herd dynamics model using data from pastoral systems in mali and kenya; moddeling pastoral livestock production: problems and prospect; analysis of management impact in semi-arid agropastoral systems; modelling economic outcomes of livestock production systems; selection of sheep husbandy techologies under single and multiple goal constraints; types, purposes and users of models; problems related do intake.
Author : Aditi Kumar Angirasa
Publisher :
ISBN 13 :
Total Pages : 374 pages
Book Rating : 4.:/5 (65 download)
Download or read book Firm Level Beef Supply written by Aditi Kumar Angirasa and published by . This book was released on 1979 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Norman Lehker
Publisher :
ISBN 13 :
Total Pages : 316 pages
Book Rating : 4.3/5 (129 download)
Download or read book The Feasibility of Using Simulation to Evaluate Alternative Systems of Beef Production in Northeast Brazil written by John Norman Lehker and published by . This book was released on 1970 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Raymond Jaske
Publisher :
ISBN 13 :
Total Pages : 664 pages
Book Rating : 4.3/5 (129 download)
Download or read book System Simulation Modeling of a Beef Cattle Enterprise to Investigate Management Decision Making Strategies written by Michael Raymond Jaske and published by . This book was released on 1976 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wade R. Shafer
Publisher :
ISBN 13 :
Total Pages : 562 pages
Book Rating : 4.:/5 (55 download)
Download or read book The Colorado Beef Cattle Production Model written by Wade R. Shafer and published by . This book was released on 2003 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Allen Miller
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (31 download)
Download or read book Modeling and Simulation written by J. Allen Miller and published by . This book was released on 1986 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hines Finlayson Boyd
Publisher :
ISBN 13 :
Total Pages : 282 pages
Book Rating : 4.:/5 (268 download)
Download or read book Beef Cattle Management Systems for the Southeast written by Hines Finlayson Boyd and published by . This book was released on 1976 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two mathematical models for the evaluation of beef production systems were developed and computerized using DYNAMO programming. The first model, a cow efficiency estimator, computed the TDN requirements for a cow and her calf using variables such as animal weight and gains, seasonal changes in cow weight, cow milk production, physical activity of the animal and the quality of feed being consumed. The second model, a herd efficiency estimator, used data from the first model plus data on cattle prices, fixed cots, pregnancy and calf survival rate, death losses, heifer replacement and cullingpolicies, herd size, and TDN produced per acre from each TDN source. This model calculated biological efficiency factors such as TDN per unit of beef sold, beef produced per land unit ane economic efficiency factors including cost and net returns per unit of beef sold and net returns per land unit. The models were tested using data collected over a nine year period at the University of Florida Beef Research Unit. They were then used to evaluate five feeding and pasture systems suitable to the southeastern United States. Animal production traits, market structures and herd culling procedures were also studied. Cow size had no effect on measures of biological efficiency. In general, cow size had little or no effect on profitability except that large cows were at a disadvantage when a relatively expensive high-energy corn silage ration was fed to brood cows. Increasing milk yield improved biological efficiency, descreased cots, and ...
