Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Development And Evaluation Of Models For Predicting Reproductive Performance In Large Commercial Dairy Herds
Download Development And Evaluation Of Models For Predicting Reproductive Performance In Large Commercial Dairy Herds full books in PDF, epub, and Kindle. Read online Development And Evaluation Of Models For Predicting Reproductive Performance In Large Commercial Dairy Herds ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Development and Evaluation of Models for Predicting Reproductive Performance in Large Commercial Dairy Herds by : Daniel Zeraib Caraviello
Download or read book Development and Evaluation of Models for Predicting Reproductive Performance in Large Commercial Dairy Herds written by Daniel Zeraib Caraviello and published by . This book was released on 2005 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phenotypic and Genome-enabled Prediction of Reproductive Performance in Dairy Cattle Using Machine Learning Algorithms by :
Download or read book Phenotypic and Genome-enabled Prediction of Reproductive Performance in Dairy Cattle Using Machine Learning Algorithms written by and published by . This book was released on 2014 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fast and cost-effective prediction models are increasingly in demand for commercial use. Prediction of the outcomes of insemination events as successes or failures based on explanatory variables related to genetic predisposition, health history, and lactation performance can have an impact on decision-making on dairy farms. However, interactions between management and physiological features are very complex. Machine learning algorithms can be useful for understanding these complex interactions and developing tools that will help farmers make accurate reproductive management decisions. Results of this study showed that random forests have the best performance in predicting the outcome of an insemination event and that health records of the cow are very important in this prediction. Optimizing classification rate without taking into account the cost of classification errors can be misleading. Nevertheless, the cost of not breeding a cow that would have conceived is much higher than the cost of breeding a cow that would not conceive. The common practice on most commercial dairy farms is to inseminate all cows that are eligible for breeding, which is debatable. In conjunction with a lift chart analysis, which guides selection of subsets of highly or lowly fertile animals with highest and lowest probabilities of conception, the approach described herein could successfully stratify the pool of eligible cows in order to use different breeding strategies or use semen with different prices in different subsets of eligible cows in order to maximize total economic gain, as well as profit per eligible cow. This approach can enhance profitability of the dairy farm if sufficient data regarding variables that affect insemination outcomes are available. Fuzzy expert systems are distinguished from other black boxed non-parametric methods, such as random forests and artificial neural networks, because they are easy to understand and interpret. There is lack of research on rule-based methods for genomic selection, because knowledge acquisition in such a complex and highly dimensional space is a limiting factor. In this dissertation, a hybrid fuzzy expert system, which uses genetic algorithms and particle swarm optimization as knowledge acquisition tools from the data was introduced for prediction of daughter pregnancy rate in Holstein bulls.
Book Synopsis Development and Evaluation of Feed Intake and Energy Balance Prediction Models for Lactating Dairy Cattle by : Dwight Kenneth Roseler
Download or read book Development and Evaluation of Feed Intake and Energy Balance Prediction Models for Lactating Dairy Cattle written by Dwight Kenneth Roseler and published by . This book was released on 1994 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monitoring and Predicting Reproductive Performance of Dairy Herds by : Laurence Edward Baumann
Download or read book Monitoring and Predicting Reproductive Performance of Dairy Herds written by Laurence Edward Baumann and published by . This book was released on 1987 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genomically Enhanced Predictions of Dairy Cattle Fertility by : Emily Marie Sitko
Download or read book Genomically Enhanced Predictions of Dairy Cattle Fertility written by Emily Marie Sitko and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research presented in this thesis aimed at improving the efficiency of dairy farms through the development of targeted reproductive management strategies (TRM) based on genomically enhanced predictions of fertility, and the elucidation of associations between genetic merit for fertility and biological outcomes that affect dairy cow reproductive performance.Chapter II and III present the results of an experiment designed to compare the association between genetic merit for fertility and reproductive and profitability outcomes of cows submitted for artificial insemination (AI) with management programs that prioritized AI at detected estrus (AIE) or timed AI (TAI). Another objective was to determine if cows with different genetic potential for fertility would present a distinct response to the strategies compared. The study presented in Chapter IV and V characterized associations between genetic merit for fertility and biological parameters known to alter reproductive performance of cows. Results presented in Chapter II and III indicated that primiparous Holstein cows of superior genetic merit for fertility had better reproductive performance than cows of inferior genetic merit for fertility regardless of the type of reproductive management used. In addition, the effect of TRM based on genetic merit for fertility on reproductive performance depended on the outcome or sets of outcomes of interest evaluated. For example, cows of superior and intermediate genetic merit for fertility had greater P/AI when managed with the predominant TAI program but reduced days to pregnancy when managed with the program that prioritized AIE. Cows of inferior fertility also had greater first service P/AI with the program that prioritized TAI but had similar days to pregnancy with both management strategies. From an economic standpoint, cows of inferior fertility had greater cash flow than cows of superior fertility. For cows in specific fertility groups, the effects of the reproductive management strategies compared generated differences in cash flow of potential value for commercial dairy farms. The study presented in Chapter IV and V demonstrated a potential association of genomic merit for fertility with physiological and endocrine parameters known to affect reproductive performance of dairy cows. Particularly, cows of inferior genetic merit for fertility had poorer uterine health, decreased response to synchronization of estrus and ovulation, and were more likely to present altered ovarian and hormonal phenotypes that led to more frequent expression of atypical estrous cycles as compared with cows of superior genetic merit for fertility. Overall, we observed that genetically enhanced predictions of fertility might be a suitable tool for decision making in TRM. Additionally, the value of TRM programs for cows of different genetic merit for fertility might be on improving aspects of herd management such as simplifying program implementation or reducing reliance on hormonal interventions while maintaining acceptable levels of reproductive performance. An improved understanding of biological differences associated with genetic variation, such as our observations in Chapter IV and V, may be beneficial for the development of novel TRM and technologies to improve the reproductive efficiency of dairy cattle. This novel information could also support the development of new traits for selection of fertility.
Book Synopsis The Development of a Decision Support System for the Evaluation of the Reproductive Performance of Dairy Herds by : Rita Schutte
Download or read book The Development of a Decision Support System for the Evaluation of the Reproductive Performance of Dairy Herds written by Rita Schutte and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dairy 2007 written by and published by . This book was released on 2010 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Breeding of Dairy Cattle by : Julius Van der Werf
Download or read book Advances in Breeding of Dairy Cattle written by Julius Van der Werf and published by . This book was released on 2019 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reproduction in Cattle by : Peter J. H. Ball
Download or read book Reproduction in Cattle written by Peter J. H. Ball and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cattle play a fundamental role in animal agriculture throughout the world. They not only provide us with a vital food source, but they also provide us with fertilizer and fuel. Keeping reproduction levels at an optimum level is therefore essential, but this is often a complicated process, especially with modern, high yielding cows. Written in a practical and user-friendly style, this book aims to help the reader understand cattle reproduction by explaining the underlying physiology of the reproductive process and the role and importance of pharmacology and technology, and showing how management techniques can improve reproductive efficiency. This edition includes: Recent research findings on the physiology of the oestrous cycle and its control; New techniques for monitoring and manipulating reproduction, including pregnancy diagnosis and embryo transfer; Advice on identifying common infertility problems and how to prevent and treat them. Reproduction Cattle 3e is essential reading for veterinary and agricultural students, as well as veterinarians and farmers involved in cattle reproduction.
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2007 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Current Trends in Knowledge Acquisition by : Bob Wielinga
Download or read book Current Trends in Knowledge Acquisition written by Bob Wielinga and published by IOS Press. This book was released on 1990 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge acquisition has become a major area of artificial intelligence and cognitive science research. The papers in this book show that the area of knowledge acquisition for knowledge-based systems is still a diverse field in which a large number of research topics are being addressed. However, several main themes run through the papers. First, the issues of integrating knowledge from different sources and K.A. tools is a salient topic in many papers. A second major topic in the papers is that of knowledge modelling. Research in knowledge-based systems emphasises the use of generic models of reasoning and its underlying knowledge. An important trend in the area of knowledge modelling aims at the formalisation of knowledge models. Where the field of knowledge acquisition was without tools and techniques years ago, now there is a rapidly growing body of techniques and tools. Apart from the integrated workbenches already mentioned above, several papers in this book present new tools. Although knowledge acquisition and machine learning have been considered as separate subfields of AI, there is a tendency for the two fields to come together. This publication combines machine learning techniques with more conventional knowledge elicitation techniques. A framework is presented in which reasoning, problem solving and learning together form a knowledge intensive system that can acquire knowledge from its own experience.
Book Synopsis Fertility in the High Producing Dairy Cow by : M. G. Diskin
Download or read book Fertility in the High Producing Dairy Cow written by M. G. Diskin and published by . This book was released on 2001 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Management of Dairy Herds by : E. V. Ellington
Download or read book The Management of Dairy Herds written by E. V. Ellington and published by . This book was released on 1917 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mathematical Modelling in Animal Nutrition by : J. France
Download or read book Mathematical Modelling in Animal Nutrition written by J. France and published by CABI. This book was released on 2008 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary purpose of each of the subsequent chapters of this book is to promulgate quantitative approaches concerned with elucidating mechanisms in a particular area of the nutrition of ruminants, pigs, poultry, fish or pets. Given the diverse scientific backgrounds of the contributors of each chapter (the chapters in the book are arranged according to subject area), the imposition of a rigid format for presenting mathematical material has been eschewed, though basic mathematical conventions are adhered to.
Book Synopsis The Testing of Cows by : Joseph Lawrence Hills
Download or read book The Testing of Cows written by Joseph Lawrence Hills and published by . This book was released on 1907 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bovine Theriogenology, An Issue of Veterinary Clinics of North America: Food Animal Practice, E-Book by : Robert L. Larson
Download or read book Bovine Theriogenology, An Issue of Veterinary Clinics of North America: Food Animal Practice, E-Book written by Robert L. Larson and published by Elsevier Health Sciences. This book was released on 2016-07-10 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This issue of Veterinary Clinics of North America: Food Animal Practice focuses on Bovine Theriogenology. Article topics include: Reproductive systems for North American Beef Cattle Herds, Reproductive systems for North American Dairy Cattle Herds, Beef Heifer Development, Dairy Heifer Development, Evaluation of data obtained at pregnancy detection of beef herds ,Synchronization and AI Strategies in Beef Herds, Synchronization and AI Strategies in Dairy Herds, Embryo Transfer, Management of reproductive disease in dairy cattle, Venereal Diseases of Cattle, Diagnosis and Control of Neosporosis, Management and Breeding Soundness Examination of Yearling Bulls, and more!
Book Synopsis Large Dairy Herd Management by : H. H. Van Horn
Download or read book Large Dairy Herd Management written by H. H. Van Horn and published by American Dairy Science Association. This book was released on 1992 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
