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Metabolic Status Lactation Persistency And Udder Health Of Dairy Cows After Different Dry Period Lengths
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Book Synopsis Metabolic Status, Lactation Persistency, and Udder Health of Dairy Cows After Different Dry Period Lengths by :
Download or read book Metabolic Status, Lactation Persistency, and Udder Health of Dairy Cows After Different Dry Period Lengths written by and published by . This book was released on 2017 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shortening Or Omitting the Dry Period in Dairy Cows by :
Download or read book Shortening Or Omitting the Dry Period in Dairy Cows written by and published by . This book was released on 2016 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lactation Length Management written by and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pelleted Beet Pulp Substituted for High-moisture Corn by : Jennifer Anne Voelker Linton
Download or read book Pelleted Beet Pulp Substituted for High-moisture Corn written by Jennifer Anne Voelker Linton and published by . This book was released on 2002 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Dry Period Length on Milk Parameters, Animal Health, and Reproduction During the Subsequant Lactation in Holstein Dairy Cattle by : Rick Daniel Watters
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:
Book Synopsis Challenging the Paradigm of One Calf Per Year by :
Download or read book Challenging the Paradigm of One Calf Per Year written by and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In most dairy systems, cows are managed to have a calf every year. A yearly calving is expected to maximize milk production due to the related yearly lactation peak. During the transitions around calving, cows have an increased risk for diseases. Lactations could be deliberately extended by extending the voluntary waiting period for insemination (VWP). This increases the calving interval (CInt) and reduces the frequency of calvings. A longer lactation and longer period in late lactation, however, may be related with a lower milk production, and a risk for fattening at the end of the lactation. This project aimed to evaluate the consequences of extended lactations for milk production, fertility, health, metabolism, and economic performance of individual dairy cows, by using both data from commercial farms and an experimental approach. Additionally, the aim was to identify cow factors that determine the response of individual cows to an extended lactation. At 13 commercial dairy farms where the VWP was deliberately extended for part of the herd, farmers selected their high-producing cows for an extended lactation, as indicated by the greatest 305-d production in the groups with the longest CInt. Milk production per day of CInt, however, was not always greatest for these cows. A longer CInt, but not a longer calving to first service interval, was related with an increased number of inseminations. In an experimental setting, the VWP was extended until 125 or 200 days for 41 primiparous (PP) and 113 multiparous (MP) cows. The VWP could be extended until 200 days for PP cows and until 125 days for MP cows with no effect for milk production per day of CInt. Multiparous cows with a VWP of 200 days had a lower milk production per day of CInt compared with MP cows with a shorter VWP. The lactation persistency between day 100 in lactation and the start of dry-off was improved for cows with a VWP of 200 days compared with cows with a VWP of 50 days. At the end of the extended lactation, an extended VWP resulted in a lower milk production at dry-off, which maybe be beneficial for udder health, but was also related with body fattening of MP cows. At the start of the next lactation, MP cows with a VWP of 200 days had a greater body condition score, a more severe negative energy balance, and a greater plasma non-esterified fatty acid concentration compared with MP cows with a VWP of 50 days, indicating an increased risk for metabolic disorders in the next lactation. For PP cows, the VWP did not affect milk yield or body condition at the end of the lactation or metabolic status at the start of the next lactation. Therefore, PP cows and MP cows with a high milk production and a low body condition before insemination may be more suitable for an extended VWP. Cows with a VWP of 200 days had lower total yearly revenues, but also lower total yearly costs, compared with cows with a VWP of 50 days. The yearly net partial cashflow was not significantly associated with the VWP, possibly partly due to the great variation among cows. To conclude, primiparous cows can handle an extended lactation very well, as an extended VWP did not affect their milk production or metabolism. For multiparous cows, a customized lactation length may limit the risk for a low milk production and fattening at the end of the extended lactation.
Book Synopsis Effects of Dietary Engergy Density on Metabolic Status and Lactation Performance of Periparturient Dairy Cows by : Euler Rabelo
Download or read book Effects of Dietary Engergy Density on Metabolic Status and Lactation Performance of Periparturient Dairy Cows written by Euler Rabelo and published by . This book was released on 2002 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Consequences of Dry Period Length and Dietary Energy Source on Physiological Health Variables in Dairy Cows and Calves by :
Download or read book Consequences of Dry Period Length and Dietary Energy Source on Physiological Health Variables in Dairy Cows and Calves written by and published by . This book was released on 2017 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dry Period Length of Dairy Cows by :
Download or read book Dry Period Length of Dairy Cows written by and published by . This book was released on 2017 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Associations of Pre- and Post-partum Lying Time with Metabolic Status, Health, Survival, and Performance of Dairy Cows by : Juan M. Piñeiro
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.
Book Synopsis Mastitis Control in Dairy Herds by : Roger William Blowey
Download or read book Mastitis Control in Dairy Herds written by Roger William Blowey and published by CABI. This book was released on 2010 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second edition of the book, containing 16 chapters which focus on prevention and control of mastitis as well as on the different factors that lead to mastitis resulting in poor milk quality. The book contains two appendices, the first contains a liner line chart and the second contains parlour audit. An index is also provided.
Book Synopsis B Group Vitamins by : Jean Guy LeBlanc
Download or read book B Group Vitamins written by Jean Guy LeBlanc and published by BoD – Books on Demand. This book was released on 2018-09-26 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: B-group vitamins are involved in numerous metabolic reactions and their widespread deficiency can cause a large series of health problems. The aim of this book is to provide an update on the current use and perspectives of B-group vitamins. Novel methods to detect folates in pregnant women, the use and role of folate dentistry, the use of genotype notification to modify food intake behavior, thiamin metabolism in Archaea and its role in plants and in crop improvement, the use of riboflavin in blood safety and niacin in metabolic stress and resistance in dairy cows are some of the subjects that are described in this multitopic book written by authors from seven different countries.
Book Synopsis Heat Stress and Animal Productivity by : Anjali Aggarwal
Download or read book Heat Stress and Animal Productivity written by Anjali Aggarwal and published by Springer Science & Business Media. This book was released on 2012-12-30 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Anjali Aggarwal is working as a Senior Scientist at National Dairy Research Institute, Karnal (India). She holds a PhD degree in Animal Physiology and is involved in research and teaching at post-graduate level. Her area of research work is stress and environmental physiology. She has more than 50 publications, two technical bulletins, four manuals and many book chapters to her credit. She has successfully guided many post-graduate and PhD students. Her major research accomplishments are on microclimatic modification for alleviation of heat and cold stress, mist and fan cooling systems for cows and buffaloes, and use of wallowing tank in buffaloes. Her work involves the use of technology of supplementing micronutrients during dry period and early lactation to crossbred and indigenous cows for alleviating metabolic and oxidative stress and improved health and productivity. Studies are also done in her lab on partitioning of heat loss from skin and pulmonary system of cattle and buffaloes as a result of exercise or exposure to heat stress. Dr. R.C. Upadhyay is working as Head, Dairy Cattle Physiology Division at National Dairy Research Institute, Karnal (India). He graduated in Veterinary Sciences and obtained his PhD degree in Animal Physiology. His area of recent research is climate change, stress, and environmental physiology. His major research accomplishment is on climate change impact assessment of milk production and growth in livestock. His work also involves studying methane conversion and emission factors for Indian livestock and use of IPCC methodology of methane inventory of Indian livestock. Heat shock protein-70 expression studies in cattle and buffaloes are also done in his lab. Draught animal power evaluation, fatigue assessment, work-rest cycle and work limiting factors form the highlights of his work. Studies on partitioning of heat loss from skin and pulmonary system of cattle and buffaloes and electrocardiographic studies in cattle, buffalo, sheep and goat are also undertaken in his lab. He has more than 75 research papers, four books and several book chapters to his credit. Technologies developed and research done by him include methodology of methane measurement: open and closed circuit for cattle and buffaloes; inventory of methane emission from livestock using IPCC methodology; livestock stress index: thermal stress measurement based on physiological functions; and draught power evaluation system and large animal treadmill system. He received training in Radio-nuclides in medicine at Australian School of Nuclear Technology, Lucas heights, NSW, Australia in 1985 and Use of radioisotopes in cardiovascular investigations at CSIRO, Prospect, NSW, Australia, during 1985-86. He has guided several post-graduate and PhD students. He is recipient of Hari Om Ashram Award-1990 (ICAR) for outstanding research in animal sciences.
Book Synopsis Mastitis in dairy production by : H. Hogeveen
Download or read book Mastitis in dairy production written by H. Hogeveen and published by BRILL. This book was released on 2023-08-28 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: Worldwide, mastitis is still one of the most important diseases in the dairy sector. Being a multifactorial disease, caused by multiple pathogens, control remains a difficult issue. Mastitis not only affects the health of milk-producing animals, having consequences for the profitability of dairy farms, it also affects the animal welfare. Moreover, mastitis negatively influences the milk quality having consequences for the dairy processing industry. In other words: mastitis affects a large part of the dairy production chain. Due to ongoing scientific effort, insight in mastitis in the context of increasingly complex farming systems, is improving. This insight leads to better methods to control mastitis, either by prevention or by adequate measures (e.g. therapy) when a cow (or goat or sheep) gets mastitis. This book reflects the current knowledge from all over the world on mastitis as it was presented during the 4th IDF International Mastitis Conference, held in June 2005 in Maastricht, the Netherlands. The papers of the 115 oral presentations and the 13 keynote presentations are reflecting not only the current knowledge of mastitis control but are also giving ideas for future solutions for control measures.
Book Synopsis Cow Care in Hindu Animal Ethics by : Kenneth R. Valpey
Download or read book Cow Care in Hindu Animal Ethics written by Kenneth R. Valpey and published by Springer Nature. This book was released on 2019-11-02 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book provides both a broad perspective and a focused examination of cow care as a subject of widespread ethical concern in India, and increasingly in other parts of the world. In the face of what has persisted as a highly charged political issue over cow protection in India, intellectual space must be made to bring the wealth of Indian traditional ethical discourse to bear on the realities of current human-animal relationships, particularly those of humans with cows. Dharma, yoga, and bhakti paradigms serve as starting points for bringing Hindu—particularly Vaishnava Hindu—animal ethics into conversation with contemporary Western animal ethics. The author argues that a culture of bhakti—the inclusive, empathetic practice of spirituality centered in Krishna as the beloved cowherd of Vraja—can complement recently developed ethics-of-care thinking to create a solid basis for sustaining all kinds of cow care communities.
Book Synopsis Metabolic Modifiers by : National Research Council
Download or read book Metabolic Modifiers written by National Research Council and published by National Academies. This book was released on 1994-02-01 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past decade, animal scientists have learned that administering recombinantly derived somatotropin (growth hormone) to cows improves milk production and that giving beta-adrenergic agonists to meat animals improves productivity and leanness. In order for these metabolic modifiers to yield benefits, however, sound management of the animals' nutrition is necessary. This volume reports on how these substances work in the animals' metabolism, what effects they might have on nutrient requirements of domestic livestock, and what information should be developed further by investigators. The book explores the current understanding of the biology, structure, mechanisms of action, and treatment effects of somatotropin, beta-adrenergic agonists, and anabolic steroids. A companion volume to the Nutrient Requirements of Domestic Animals series, this authoritative volume will be required reading for animal scientists, researchers, veterinarians, livestock farmers, and faculty and students in university animal veterinary science programs.
Book Synopsis Bovine Medicine by : Anthony H. Andrews
Download or read book Bovine Medicine written by Anthony H. Andrews and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 1233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bovine Medicine provides practical and comprehensive information oncattle disease and production and is a key reference for all largeanimal vets. Since the first edition was published in 1991 therehave been significant improvements in disease control andmanagement of cattle. Almost all parts of the book have beenupdated and completely rewritten. There are new chapters onsurgery, embryo transfer, artificial insemination, ethno-veterinarymedicine and biosecurity, and a new consolidating chapter on theinteraction between the animal, environment, management anddisease. The previous edition has sold all over the world, and as aresult of this a greater emphasis has been placed on conditions andtheir treatment in areas other than temperate regions. A newsection entitled "Global Variation in Cattle Practice" has beenincluded with contributors discussing bovine medicine practice intheir part of the world. All in all this is an outstanding resource for any practisingvet and an excellent reference for veterinary students.
