Increasing Feed Efficiency
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Increasing Feed Efficiency
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Author :
language : en
Publisher:
Release Date : 1956
Increasing Feed Efficiency written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1956 with Feed utilization efficiency categories.
Feed Efficiency In Swine
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Author : John F. Patience
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-10-15
Feed Efficiency In Swine written by John F. Patience and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-10-15 with Science categories.
'Feed efficiency in swine' has been prepared as a comprehensive treatise on the current state of our understanding of this topic which is so important to the pork industry. Each chapter is written by international authorities who understand both the science and application of their topic area. The book provides detailed insight into the many factors affecting feed efficiency, ranging from diet processing to herd health, from nutrition to physiology and from day-to-day barn management to the adoption of advanced technologies. The authors explain such practical aspects as the challenge of interpreting feed efficiency information obtained on farm or the role of liquid feeding. The authors also delve into more scientific topics such as amino acid or energy metabolism or animal physiology. This book is written for people who have a technical interest in pork production, including nutritionists, geneticists, farm management specialists, veterinarians, other academics and, of course, pork producers.
Increasing Feed Efficiency
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Author :
language : en
Publisher:
Release Date : 1956
Increasing Feed Efficiency written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1956 with categories.
Feed Efficiency In The Beef Industry
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Author : Rodney A. Hill
language : en
Publisher: John Wiley & Sons
Release Date : 2012-06-18
Feed Efficiency In The Beef Industry written by Rodney A. Hill and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-06-18 with Science categories.
Feed Efficiency in the Beef Industry provides a thorough and concise overview of feed efficiency in beef cattle. It frames the great importance of feed efficiency to the industry and details the latest findings of the many scientific disciplines that intersect and aim to improve efficient and sustainable production of nutritious beef. The vast majority of production costs are directly tied to feed. With increased demand for grains to feed a rapidly increasing world population and to supply a new demand for alternative fuels, feed costs continue to increase. In recent years, the negative environmental impacts of inefficient feeding have also been realized; as such feed efficiency is an important factor in both economic viability and environmental sustainability of cattle production. Feed Efficiency in the Beef Industry covers a broad range of topics ranging from economic evaluation of feed efficiency to the physiological and genetic bases of efficient conversion of feed to high quality beef. Chapters also look at how a fuller understanding of feed efficiency is leading to new selective breeding efforts to develop more efficient cattle. With wide-ranging coverage from leading international researchers, Feed Efficiency will be a valuable resource for producers who wish to understand the complexities, challenges, and opportunities to reduce their cost of production, for students studying the topic and for researchers and professionals working in the beef industry.
Improving Feed Efficiency Through Forage Strategies For Increasing Dairy Profitability And Sustainability
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Author : Jon Patrick Pretz
language : en
Publisher:
Release Date : 2016
Improving Feed Efficiency Through Forage Strategies For Increasing Dairy Profitability And Sustainability written by Jon Patrick Pretz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Dairy cattle categories.
Improvement Of Feed Efficiency In Beef Cattle Through Selection Upon Residual Feed Intake Rfi
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Author : Nicholas Oliver Minton
language : en
Publisher:
Release Date : 2010
Improvement Of Feed Efficiency In Beef Cattle Through Selection Upon Residual Feed Intake Rfi written by Nicholas Oliver Minton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Beef cattle categories.
Selecting beef cattle which metabolically are more efficient at converting feed into gain or body weight maintenance is one way to reduce feed cost in beef production. Residual feed intake (RFI) is one trait used to identify animals which are metabolically feed efficient or inefficient. Trials in the current study investigated whether animal RFI varies between trials conducted at two different stages of maturity and the influence on progeny feed efficiency when sires and dams of known RFI phenotypes are mated. We further investigated whether RFI measured postweaning or later in maturity more accurately predicted progeny feed efficiency in addition to whether ribeye area and body composition varied between steers from either RFI- or RFI+ dams. Reranking in RFI of animals did occur between trials, however; RFI phenotype was correlated (rp = 0.54; P [lesser than] 0.01) between postweaning and mature trials indicating animals identified as feed efficient or inefficient remain feed efficient or inefficient further into maturity. More efficiently mated RFI- sires and dams produced heifer and steer progeny with higher feed efficiencies (P [lesser than] 0.05; P [lesser than] 0.10, respectively) with no difference in average daily gain (P = 0.52) in comparison to progeny from RFI+ sires and dams. Postweaning dam RFI phenotype showed stronger correlations to progeny RFI phenotype (rp = 0.60; P [lesser than] 0.05) while steers from RFI- dams tended (P [lesser than] 0.10) to have larger developments in ribeye area with no variation (P [greater than] 0.10) in body composition to steers from RFI+ dams. Selection upon RFI is an accurate trait to select upon to improve herd feed efficiency as well as increase profitability in beef production.
Improving Feed Efficiency
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Author :
language : en
Publisher:
Release Date : 1995
Improving Feed Efficiency written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Feed utilization efficiency categories.
Examines genetic links, designs diets for optimum feed conversion, and the setting up of on-farm feed trials.
Improving Feed Efficiency In Pigs
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Author :
language : en
Publisher:
Release Date : 2021
Improving Feed Efficiency In Pigs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
Kansas State University University Of Minnesota Nutrition Workshop Focus On Feeding Efficiency
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Author :
language : en
Publisher:
Release Date : 2008
Kansas State University University Of Minnesota Nutrition Workshop Focus On Feeding Efficiency written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Animal nutrition categories.
Influence Of Diet Production Traits Blood Hormones And Metabolites And Mitochondrial Complex Protein Concentrations On Residual Feed Intake In Beef Cattle
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Author : Michael Patrick Davis
language : en
Publisher:
Release Date : 2009
Influence Of Diet Production Traits Blood Hormones And Metabolites And Mitochondrial Complex Protein Concentrations On Residual Feed Intake In Beef Cattle written by Michael Patrick Davis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Beef cattle categories.
Residual feed intake (RFI) is the difference between measured feed intake and predicted feed intake of an animal. Intake prediction is computed from a regression of intake on gain and metabolic body weight. Residual feed intake is used as a measure of metabolic efficiency. As RFI increases, feed intake (FI) and feed conversion ratio (FCR) increase with no change in postweaning growth and body weight in steers. Identification and selection for lower RFI cattle would improve herd feed efficiency without influencing growth. Steer residual feed intake measured in the growing phase, is related to residual feed intake during the finishing phase. Animals with low residual feed intake in the growing phase had lower residual feed intake and improved feed efficiency in the finishing phase. Serum concentrations of glucose and mitochondrial function are related to metabolic efficiency and may differ between residual feed intake phenotypes. Serum concentrations of glucose at weaning were greater (P [lesser than] 0.05) in low (efficient) compared to high (inefficient) RFI steers. Mitochondrial complex protein concentrations I:II and I:III ratios were greater (P [lesser than] 0.05) in low extreme versus high extreme RFI steers. Diets varied in rumen undegradable protein content were used to determine impact of intestinal amino acid supply on growth performance. Increasing rumen bypass amino acids in no roughage diets during the growing phase tended (P [lesser than] 0.15) to influence ADG and FCR in the growing phase such that as rumen bypass amino acid level increased growth and feed efficiency improved in the growing phase. Steers fed post ruminal absorbable amino acid levels below that required for growth in growing phase tended (P [lesser than] 0.15) to have improved feed efficiency in the finishing phase. Also, during the growing phase as bypass amino acids increased subcutaneous and intramuscular fat deposition decreased in steers during the finishing phase. Feeding a level of bypass amino acids below optimum for growth to steers during the growing phase decreased (P [lesser than] 0.05) longissimus dorsi muscle area in steers during the finishing phase.