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Production Testing Beef Cattle Factors Affecting Rate Of Gain And Feed Efficiency
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Book Synopsis Production Testing Beef Cattle Factors Affecting Rate of Gain and Feed Efficiency by : Warren Arthur North
Download or read book Production Testing Beef Cattle Factors Affecting Rate of Gain and Feed Efficiency written by Warren Arthur North and published by . This book was released on 1955 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rate and Efficiency of Gains in Beef Cattle by :
Download or read book Rate and Efficiency of Gains in Beef Cattle written by and published by . This book was released on 1954 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Factors Affecting Feed Efficiency in Beef Cattle by : Nemecio Villalobos
Download or read book Study of Factors Affecting Feed Efficiency in Beef Cattle written by Nemecio Villalobos and published by . This book was released on 1978 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rate and Efficiency of Gains in Beef Cattle - 2 - Some Factors Affectingperformance Testing by : Oregon State University. Agricultural Experiment Station
Download or read book Rate and Efficiency of Gains in Beef Cattle - 2 - Some Factors Affectingperformance Testing written by Oregon State University. Agricultural Experiment Station and published by . This book was released on 1954 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Factors Affecting the Growth and Feed Efficiency in Beef Cattle by : Sayed Karam Shah
Download or read book Factors Affecting the Growth and Feed Efficiency in Beef Cattle written by Sayed Karam Shah and published by . This book was released on 1966 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Some Factors Affecting Feed Efficiency in Beef Cattle by : John Herbert Landers
Download or read book Some Factors Affecting Feed Efficiency in Beef Cattle written by John Herbert Landers and published by . This book was released on 1967 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rate and Efficiency of Gains in Beef Cattle by :
Download or read book Rate and Efficiency of Gains in Beef Cattle written by and published by . This book was released on 1955 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Environment on Nutrient Requirements of Domestic Animals by : National Research Council
Download or read book Effect of Environment on Nutrient Requirements of Domestic Animals written by National Research Council and published by National Academies Press. This book was released on 1981-02-01 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Feed Efficiency in the Beef Industry by : Rodney A. Hill
Download or read book Feed Efficiency in the Beef Industry written by Rodney A. Hill and published by John Wiley & Sons. This book was released on 2012-09-11 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Some Factors Affecting Feed Efficiency in Beef Cattle by : John Herbert Landers
Download or read book Some Factors Affecting Feed Efficiency in Beef Cattle written by John Herbert Landers and published by . This book was released on 1967 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rate and Efficiency of Gains in Beef Cattle - 3 - Factors Affecting Weight and Effectiveness of Selection For Gains in Weight by : Oregon State University. Agricultural Experiment Station
Download or read book Rate and Efficiency of Gains in Beef Cattle - 3 - Factors Affecting Weight and Effectiveness of Selection For Gains in Weight written by Oregon State University. Agricultural Experiment Station and published by . This book was released on 1955 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rate and Efficiency of Gains in Beef Cattle by : Edward Perrin Warren
Download or read book Rate and Efficiency of Gains in Beef Cattle written by Edward Perrin Warren and published by . This book was released on 1954 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology of Domestic Animals by : Colin G. Scanes
Download or read book Biology of Domestic Animals written by Colin G. Scanes and published by CRC Press. This book was released on 2017-09-01 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Interrelationship of Factors Influencing Feed Efficiency in Beef Cattle by : Gary Samuel Davis
Download or read book Interrelationship of Factors Influencing Feed Efficiency in Beef Cattle written by Gary Samuel Davis and published by . This book was released on 1972 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Variance and Covariance Compenents for Feed Intake, Average Daily Gain, and Postweaning Gain and Indices to Improve Feed Efficiency in Growing Beef Cattle by : Kelli June Retallick
Download or read book Genetic Variance and Covariance Compenents for Feed Intake, Average Daily Gain, and Postweaning Gain and Indices to Improve Feed Efficiency in Growing Beef Cattle written by Kelli June Retallick and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Feed is the single most expensive cost related to beef cattle production. Currently a 70 d performance test is recommended for accurate calculation of efficiency. Previous research has suggested intake tests can be limited to 35 d. Objectives of this study were to estimate genetic parameters for growth and intake traits, compare two alternative indices for feed efficiency, and quantify the genetic response to selection for feed efficiency combining an intake test with two types of gain data. On-test average daily feed intake (ADFI), on-test average daily gain (ADG), and postweaning gain (PWG) records on 5,606 growing steers and heifers were obtained from the U.S. Meat Animal Research Center in Clay Center, NE. On-test ADFI and ADG data were collected from a minimum of 62 to 148 d testing days. Independent quadratic regressions were fitted for body weight on time, and on-test ADG was predicted from the resulting equations. PWG was calculated by subtracting adjusted 205-d weights from 365-d weights and dividing by 160. Genetic correlations were estimated using multiple trait animal mixed models with ADG, ADFI, and PWG for both sexes as dependent variables. The genetic correlations between ADG and PWG for both steers (0.81) and heifers (0.65) were strong. This indicates PWG is a strong proxy for ADG on-test and long test periods may not be necessary. Indices combining EBVs for ADFI and ADG and for ADFI and PWG were evaluated. For each index, the weighting of gain was arbitrarily set to 1.0 and the weighting for ADFI was the negative of the average of the intra-contemporary group ratio of mean gain divided by mean ADFI. Values were combined with EBV to compute two index values per animal. Pearson correlations for steers (0.96) and heifers (0.45) indicated a strong relationship for steers between the indices. Because more animals can be measured for intake, using PWG increases genetic progress of selection for feed efficiency by 15-17% per year. These findings support using PWG data in combination with ADFI to determine efficient animals, lessen costs, and increase annual feed efficiency genetic change.
Download or read book Water Quality in U.S. Feedlots written by and published by . This book was released on 2000 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nutrient Requirements of Beef Cattle by : Subcommittee on Beef Cattle Nutrition
Download or read book Nutrient Requirements of Beef Cattle written by Subcommittee on Beef Cattle Nutrition and published by National Academies Press. This book was released on 2000-05-16 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: As members of the public becomes more concious of the food they consume and its content, higher standards are expected in the preparation of such food. The updated seventh edition of Nutrient Requirements of Beef Cattle explores the impact of cattle's biological, production, and environmental diversities, as well as variations on nutrient utilization and requirements. More enhanced than previous editions, this edition expands on the descriptions of cattle and their nutritional requirements taking management and environmental conditions into consideration. The book clearly communicates the current state of beef cattle nutrient requirements and animal variation by visually presenting related data via computer-generated models. Nutrient Requirements of Beef Cattle expounds on the effects of beef cattle body condition on the state of compensatory growth, takes an in-depth look at the variations in cattle type, and documents the important effects of the environment and stress on food intake. This volume also uses new data on the development of a fetus during pregnancy to prescribe nutrient requirements of gestating cattle more precisely. By focusing on factors such as product quality and environmental awareness, Nutrient Requirements of Beef Cattle presents standards and advisements for acceptable nutrients in a complete and conventional manner that promotes a more practical understanding and application.