Residual Feed Intake of Purebred Angus Steers, Effects on Meat Quality and Palatability PDF Download

Author: Sarah Dawn Baker
Publisher:
ISBN:
Category : Aberdeen-Angus cattle
Languages : en
Pages : 134

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Author: Rodney A. Hill
Publisher: John Wiley & Sons
ISBN: 1118388240
Category : Science
Languages : en
Pages : 328

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Book Description
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.

Author: John F. Patience
Publisher: Springer Science & Business Media
ISBN: 9086867561
Category : Science
Languages : en
Pages : 264

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Book Description
'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.

Author: Natalie Ferriman
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Residual feed intake (RFI) is a measurement of feed efficiency and is becoming a popular trait used in genetic selection. This study evaluated the effects of RFI classification on beef cattle performance, carcass and meat quality and its repeatability between growing and finishing phases of production. Cattle were managed on two different nutritional management regimens consisting of finishing on a high grain diet or backgrounding cattle prior to being finished on a high grain diet. Extensive RFI reranking occurred between production phases. Reranking was positively correlated with longissimus muscle area but did not influence other carcass and meat quality parameters. Growing phase RFI classification had a minimal effect on carcass traits, while low RFI classified steers in the finishing phase produced bigger ribeyes. High RFI steers produced juicier and more tender beef compared to low RFI steers assessed using taste panel and consumer evaluations.

Author: Gustavo Durante Cruz
Publisher:
ISBN:
Category :
Languages : en
Pages : 152

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Author: Janelle Elyse Kelly
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Dorian Garrick
Publisher: CABI
ISBN: 1780642210
Category : Science
Languages : en
Pages : 642

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Book Description
Since the time of domestication more than 10,000 years ago, cattle have played an increasingly crucial role in the development of human civilizations. Progress has been quite remarkable since the turn of the century; the sequencing of the bovine genome in 2009 launched new avenues for furthering our understanding of theoretical and practical aspects of cattle genetics. Covering a vast array of questions, this book reviews major topics from molecular and developmental genetics, disease resistance and immunogenetics to genetic improvement of dairy and beef breeds, addressing all current problems in the field. This second edition includes a new team of authors and completely new chapters on the genetics of fat production, nutrition, feed intake and efficiency, growth and body composition. Fully updated throughout, it provides a valuable resource on cattle genetics for researchers, breeders, veterinarians and postgraduate students.

Author: Colin G. Scanes
Publisher: CRC Press
ISBN: 1351648136
Category : Nature
Languages : en
Pages : 509

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Book Description
There is increasing interest in the biology of domestic animals ranging from genomics, transcriptomics, metabolomics, nutritional physiology, and systems biology. This book touches on all of these, with a particular focus on topics such as domestic animals as comparative models to humans, molecular regulation of growth, metabolic efficiency, reproduction, and the impact of stress on growth and development. The book concludes with a discussion on the current and future directions for researchers.

Author: Celia O. Trejo
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
One hundred and fifty eight Angus (A), Simmental (S), Angus-Simmental, and Simmental-Angus steers across two years across were classified into high (H), medium (M), and low (L) residual feed intake (RFI) groups. Steers in the H RFI group ate 1 kg more of DMI (P 0.05) per day than steers in the L and M RFI group. Steers in the L RFI group had the highest feed efficiency by gaining 15% and 22% more per kg of feed than steers in the M and H RFI groups, respectively. Steers in the L RFI group had a phenotypic advantage for growth rate of 0.20 kg/d more (P 0.05) than steers in the M and H RFI groups. Steers in the H RFI group had carcasses with more kidney, pelvic, and heart fat than carcasses of steers in the L and M RFI group. No differences were observed (P = 0.89) among RFI groups for meat tenderness using the Warner Bratzler shear force method. Breed of dam exhibited some differences for initial (P

Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 306

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Book Description
"Education, arts and social sciences, natural and technical sciences in the United States and Canada".