| 紀錄類型: |
書目-電子資源
: Monograph/item
|
| 正題名/作者: |
Feed efficiency in the beef industry/ edited by Rodney A. Hill. |
| 其他作者: |
Hill, Rodney A. |
| 出版者: |
Hoboken :John Wiley & Sons, : 2012., |
| 面頁冊數: |
1 online resource (329 p.) |
| 內容註: |
Front Matter -- Introduction / Rodney A Hill -- Input Factors Affecting Profitability: a Changing Paradigm and a Challenging Time / Jason K Ahola, Rodney A Hill -- Measuring Individual Feed Intake and Utilization in Growing Cattle / D H (denny) Crews, Gordon E Carstens -- Producer Awareness and Perceptions about Feed Efficiency in Beef Cattle / J D Wulfhorst, Stephanie Kane, Jason K Ahola, John B Hall, Rodney A Hill -- Feed Efficiency in Different Management Systems: Cow-Calf and in the Feedyard / Keela M Retallick, Dan B Faulkner -- Lessons from the Australian Experience / Robert M Herd, Paul F Arthur -- Nutrition and Feed Efficiency of Beef Cattle / Monty S Kerley -- Genetic Improvement of Feed Efficiency / Paul F Arthur, Robert M Herd -- Feed Efficiency and Animal Robustness / Wendy M Rauw -- Interactions with Other Traits: Reproduction and Fertility / John A Basarab, Carolyn Fitzsimmons, C Scott Whisnant, Robert P Wettemann -- Feed Efficiency Interactions with Other Traits: Growth and Product Quality / Rodney A Hill, Jason K Ahola -- Estimating Feed Efficiency of Lactating Dairy Cattle Using Residual Feed Intake / Erin E Connor, Jana L Hutchison, H Duane Norman -- Muscle and Adipose Tissue: Potential Roles in Driving Variation in Feed Efficiency / Cassie M Welch, Marcus McGee, Theresa A Kokta, Rodney A Hill -- Epigenetics and Effects on the Neonate That May Impact Feed Efficiency / Allison M Meyer, Joel S Caton, Bret W Hess, Stephen P Ford, Lawrence P Reynolds -- Hormonal Regulation of Feed Efficiency / Michael E Davis, Macdonald P Wick, Martin G Maquivar -- Variation in Metabolism: Biological Efficiency of Energy Production and Utilization That Affects Feed Efficiency / Walter G Bottje, Gordon E Carstens -- Modeling Feed Efficiency / Roberto Sainz -- Index. |
| 內容註: |
Feed Efficiency in the Beef Industry; Contents; Contributors; Foreword; Preface; Acknowledgments; Introduction; Reader Guide to Scope; Important Distinctions between Feed Efficiency Metrics and Methodologies and Their Strengths and Weaknesses; The Complexity of Feed Efficiency Concepts, Scientific Interpretation, and Some Consequences; The Role of New Technologies in Improving Feed Efficiency; The Opportunity; 1 Input Factors Affecting Profitability: a Changing Paradigm and a Challenging Time; Introduction; Influence of Input and Feed Costs on the Beef Production Industry. |
| 內容註: |
Evolving Factors Affecting Feed Cost in the Beef Production Industry (the Changing Marketplace for Feed Grains)Drivers for Increased Focus on Feed Efficiency within the Beef Industry; Implications for Improved Efficiency of Feed Utilization in the United States (Based on Number of Beef Cattle in United States--Cow/Calf, Stocker, and Feedyard); References; 2 Measuring Individual Feed Intake and Utilization in Growing Cattle; Introduction; Equipment and Facilities for Intake Measurement; Pretest Information; Age on Test; Adaptation Period; Test Period; Test Diets; Pen Stocking Rates. |
| 內容註: |
Measurement of Body CompositionData Auditing; Alternative Measures of Feed Efficiency; Summary; References; 3 Producer Awareness and Perceptions about Feed Efficiency in Beef Cattle; Introduction; Approach and Description of the Social Surveys; Follow-Up Survey; Response Rates; Data Analyses; Survey Results; Respondent Characteristics--Baseline Survey; Relationship between Knowledge of Feed-to-Gain Ratio and RFI; Economic Factors of RFI; Adoption of RFI and Feed Efficiency; General Discussion; Implications; Acknowledgments; References. |
| 內容註: |
4 Feed Efficiency in Different Management Systems: Cow-Calf and in the FeedyardIntroduction; Measuring Intake and Efficiency; Feedlot Management Systems; Sex Effects; Forage versus Grain in the Feedlot; Dietary Energy Source in Growing and Finishing Phases; Early Weaning; RFI in the Feedlot; Cow Energy Status and Intake; Heifer RFI and Mature Cow Efficiency; Summary; References; 5 Lessons from the Australian Experience; Introduction; The Trangie Project; Genetic Variation in Postweaning RFI; Genetic Variation in Cow RFI; Response to Selection; The Low-RFI Steer at Pasture. |
| 內容註: |
The Low-RFI Steer in the FeedlotSteer Carcass and Meat Quality; The Low-RFI Cow; Maternal Productivity; Lessons Learnt on Measurement of Feed Intake and Efficiency; Industry Implementation and Test Standards; Conclusion; References; 6 Nutrition and Feed Efficiency of Beef Cattle; Introduction; Intake and Feed Efficiency Ranges within Beef Cattle; Balancing Postruminal Amino Acid Flow with Consumed Energy; Energy Requirement for Growth; Postruminal Amino Acid Supply; Rumen-Degradable Protein Supply; Impact of Formulating Diets for AA:EE and RDP on Feed Conversion Ratio. |
| 標題: |
Cattle - Feed utilization efficiency. - |
| 電子資源: |
http://onlinelibrary.wiley.com/book/10.1002/9781118392331 |
| ISBN: |
9781118392331 (electronic bk.) |