Download or read book Effects of Inbreeding and Selection in a Closed Line of Hereford Cattle written by Darrell Ian Nevins and published by . This book was released on 1986 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Response to Selection and Inbreeding in a Closed Line of Hereford Cattle written by J. S. Brinks and published by . This book was released on 1965 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Response to Selection and Inbreeding in a Closed Line of Hereford Cattle written by United States. Agricultural Research Service and published by . This book was released on 1965 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book History and Performance of Inbred Lines of Hereford Cattle Developed at the United States Range Livestock Experiment Station written by and published by . This book was released on 1966 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Influence of Selection and Inbreeding in a Closed Herd of Beef Cattle written by James Parker Mann and published by . This book was released on 1968 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Bulletin written by and published by . This book was released on 1965 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agricultural Research written by and published by . This book was released on 1953 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Zealand Journal of Agricultural Research written by and published by . This book was released on 1990 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Inbreeding and Environmental Factors on the Weaning Weight and Post weaning Growth of Range Hereford Cattle written by Geoffrey Oswald Harwin and published by . This book was released on 1963 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present study was initiated to determine the effects of inbreeding and certain environmental and genetic factors on the weaning weight of range Hereford calves. The study was also extended to include an investigation of the effect of these variables on post-weaning traits of range Hereford females including yearling gain and weight at 18 months, 2 1/2 years and 3 1/2 years of age. The data used in the study were obtained from a long term cattle breeding project initiated by Colorado State University in 1946 at the San Juan Basin Experiment Station and included onservations from 16 inbred lines of Hereford cattle, crosses between yhese lines and a control herd. The preliminary phase of the study was concerned with the development of appropriate mathematical models enabling minimum variance unbiased estimates of the various genetic and ebvironmental factors under investigation. The interactions between the various main effects as they affect weaning weight were investigated simultaneously by means of a least squares analysis. The interactions of sex x mating system, sex x age of dam and year x age of dam were significant. Investigation of the within year regression of weaning weight on age of calf also indicated a significant interaction between age of calf and year. Preleminary investigation indicated a marked curvilinear decline in weaning weight with inbreeding and differential response to inbreeding of both lines and sexes. The results of the preliminary studies were used in developing the final models...

Download or read book Checklist of Major United States Government Series written by and published by . This book was released on 1972-10 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Encyclopedia of Agriculture and Food Systems written by Neal K. Van Alfen and published by Elsevier. This book was released on 2014-07-29 with total page 2745 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of Agriculture and Food Systems, Second Edition, Five Volume Set addresses important issues by examining topics of global agriculture and food systems that are key to understanding the challenges we face. Questions it addresses include: Will we be able to produce enough food to meet the increasing dietary needs and wants of the additional two billion people expected to inhabit our planet by 2050? Will we be able to meet the need for so much more food while simultaneously reducing adverse environmental effects of today’s agriculture practices? Will we be able to produce the additional food using less land and water than we use now? These are among the most important challenges that face our planet in the coming decades. The broad themes of food systems and people, agriculture and the environment, the science of agriculture, agricultural products, and agricultural production systems are covered in more than 200 separate chapters of this work. The book provides information that serves as the foundation for discussion of the food and environment challenges of the world. An international group of highly respected authors addresses these issues from a global perspective and provides the background, references, and linkages for further exploration of each of topics of this comprehensive work. Addresses important challenges of sustainability and efficiency from a global perspective. Takes a detailed look at the important issues affecting the agricultural and food industries today. Full colour throughout.

Download or read book Animal Breeding Abstracts written by and published by . This book was released on 1984 with total page 1642 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report written by New Mexico State University. Agricultural Experiment Station and published by . This book was released on 1892 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Committee Prints written by United States. Congress. House. Committee on Agriculture and published by . This book was released on 1951 with total page 1864 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research and Related Services in the United States Department of Agriculture written by United States. Agricultural Research Administration and published by . This book was released on 1951 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Commercial Beef Cattle Production written by C. C. O'Mary and published by . This book was released on 1978 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Review of Agricultural Research written by United States. Congress. House. Committee on Agriculture. Subcommittee on Conservation, Credit, Rural Development, and Research and published by . This book was released on 2005 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: