Download or read book Relationship Between Milk Yield and Post partum Reproductive Performance in Holstein Dairy Cows written by Humphrey Hamudikuwanda and published by . This book was released on 1985 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Relationships Between Milk Yield and Postpartum Reproductive Traits in Dairy Cows written by Francisco Aloizio Fonseca and published by . This book was released on 1980 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reproductive Performance in Genetic Lines Selected for High Or Average Milk Yield written by William H. Hageman and published by . This book was released on 1989 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Undegradable Protein Fed Prepartum on Subsequent Lactation Reproduction and Health in Holstein Dairy Cattle written by Robert John Van Saun and published by . This book was released on 1993 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reproductive Performance in High Producing Dairy Cows Treated with Recombinant Bovine Somatotropin written by Jose Emilio Esteban Vaz and published by . This book was released on 1993 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Associations of Pre and Post partum Lying Time with Metabolic Status Health Survival and Performance of Dairy Cows written by Juan M. Piñeiro and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Dairy cattle have strong behavioral need to rest and deprivation of their lying time (LT) has been associated with lameness and changes in feeding behavior and endocrinological milieu. However, the effects of LT during the transition period on metabolic stress, inflammation, health and performance have not yet been fully investigated. Therefore, the following tree specific aims were conducted. A total of 1052 Holstein cattle (401 nulliparous heifers and 651 parous cows) from 3 commercial dairy farms were enrolled for this prospective cohort study. The first aim (Chapter 3) was to evaluate the association of pre- and postpartum lying time (LT) on calcium and energy balance (NEFA and BHB), inflammation (haptoglobin and hemogram), and health status of dairy cows. Prepartum LT had significant quadratic association on serum NEFA concentration, but was not significantly associated with serum Ca concentration within 48 h after calving. Increased LT within 14 DIM was associated with increased risk of diagnosis with ketosis within 14 DIM, inflammation, and incidence of postpartum diseases. Findings from this study suggest that LT along with Ca and energy balance are critical for transition cow health. The second aim (Chapter 4) was to assess the association of post-partum LT on milk yield, components (milk fat and protein percentage), and somatic cell count (SCC). Milk yield at first DHIA test was not associated with LT within the first 14 DIM, but was negatively correlated with the daily coefficient of variation (CV) of LT within 14 DIM. However, health status was associated with milk yield and components, and health status was associated with LT within 14 DIM. The third aim (Chapter 5) was to evaluate the association of lying time (LT) within the first 14 days in milk (DIM) and health status on culling within 60 DIM, cyclicity, and reproductive performance. LT had a positive linear association with culling, for every hour increment of LT within 14 DIM the culling risk within 60 DIM increased by 1 percentage point, and negative quadratic association with cyclicity at 42 DIM. Multiparous cows with a LT of 9-13 h/d had greater probability of pregnancy up to 300 DIM compared to cows with a LT >13 h/d. These findings suggest that there is an optimum daily LT range for early postpartum cows housed in freestall barns, different than reported for mid lactation cows, with the potential for improved reproductive performance.
Download or read book Nutrition and Lactation in the Dairy Cow written by Philip C. Garnsworthy and published by Elsevier. This book was released on 2013-10-22 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrition and Lactation in the Dairy Cow is the proceedings of the 46th University of Nottingham Easter School in Agricultural Science. Said symposium was concerned with the significant advances in the field of nutrition and lactation in the dairy cow. The book is divided in five parts. Part I deals with the principles behind nutrition and lactation of cows. Part II discusses the cow’s nutrient interactions; responses to nutrients that yield protein and energy; and the influence of nutrient balance and milk yields. Part III tackles the efficiency of energy utilization in cows and its relation to milk production. Part IV talks about food intake of cows and the factors that affect it, while Part V deals with the different feeding systems for cows. The text is recommended for those involved in raising cows and dairy production, especially those who would like to know more and make studies about the relationship of nutrition and lactation of cows.
Download or read book Recent Developments in Ruminant Nutrition written by W Haresign and published by Elsevier. This book was released on 2013-10-22 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent Developments in Ruminant Nutrition presents papers that discuss the advancement of the different areas of ruminant nutrition. The book is comprised of 20 chapters that cover topics, such as reproduction, diet, and nutrition. The coverage of the text includes growth stimulation in ruminants; protein quantity and quality for the U.K. dairy cow; and complete-diet feeding of dairy cows. The book also covers rumen fermentation related topics, such as influence of nitrogen and carbohydrate inputs on rumen fermentation; aspects of the biochemistry of rumen fermentation and their implication in ruminant productivity; and manipulation of rumen fermentation. The text will be of great use to researchers and professionals in the animal husbandry industry.
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:
Download or read book Effects of Dry Period Length on Milk Parameters Animal Health and Reproduction During the Subsequant Lactation in Holstein Dairy Cattle written by Rick Daniel Watters and published by . This book was released on 2006 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bovine Reproduction written by Richard M. Hopper and published by John Wiley & Sons. This book was released on 2014-08-18 with total page 2206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bovine Reproduction is a comprehensive, current reference providing information on all aspects of reproduction in the bull and cow. Offering fundamental knowledge on evaluating and restoring fertility in the bovine patient, the book also places information in the context of herd health where appropriate for a truly global view of bovine theriogenology. Printed in full color throughout, the book includes 83 chapters and more than 550 images, making it the most exhaustive reference available on this topic. Each section covers anatomy and physiology, breeding management, and reproductive surgery, as well as obstetrics and pregnancy wastage in the cow. Bovine Reproduction is a welcome resource for bovine practitioners, theriogenologists, and animal scientists, as well as veterinary students and residents with an interest in the cow.
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:
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:
Download or read book The Effects of Milk Production and Management on Reproductive Performance in Wisconsin Dairy Herds written by Cheryl F. Marti and published by . This book was released on 1993 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relationship of Some Blood Constituents in Early Postpartum Dairy Cows with Subsequent Reproductive Performance Health and Milk Production written by Hassan S. Mabruk and published by . This book was released on 1977 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Endocrine Causes of Seasonal and Lactational Anestrus in Farm Animals written by F. Ellendorff and published by Springer. This book was released on 2012-01-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
