Download or read book Metabolic Status at Dairy Cows with Reproductive Disorder written by Vesna Karapetkovska Hristova and published by . This book was released on 2017-03-25 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metabolic Status and Reproductive Activity in Postpartum Dairy Cows written by Eva Zurek and published by . This book was released on 1994 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metabolic Diseases of Ruminants An Issue of Veterinary Clinics Food Animal Practice written by Thomas Herdt and published by Elsevier Health Sciences. This book was released on 2013-07-28 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: A current, comprehensive issue on metabolic diseases for the food animal practitioner. Topics include obesity and insulin resistance in dairy cows, ketosis therapy, use of serum NEFA and BHBA concentrations in herd-level assessment, mineral nutrition in transition diets, protein, fat, and energy in dairy transition diets, prophylactic calcium therapy in peripartum dairy cows, metabolic regulators of feed intake, assessing and managing body condition score for the prevention of metabolic disease, and more!
Download or read book Metabolic Status and Reproductive Activity in Postpartum Dairy Cows microform written by Eva Zurek and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1994 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metabolic Disorders of Transition Dairy Cows written by Morteza Mansooryar and published by LAP Lambert Academic Publishing. This book was released on 2011-07 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: The transition period is often defined as the interval beginning three weeks precalving and ending three weeks postcalving. It is a period where the dairy cow undergoes tremendous metabolic, physiological and nutritional changes to ensure provision of adequate nutrients for processes of calving and milk production. If the dairy cow cannot adapt quickly to these challenges - that indeed is happened for most of modern dairy cows- she face different metabolic disorders. The occurrence of health problems hence is clearly a major complicating factor for subsequent productive, reproductive performance and herd profitability that resulting in substantial economic losses. Therefore, control of metabolic disorders is crucially important for modern dairy herds as during the past 20 years a huge amount of experiments has focused on this field. To control and prevention from these disorders, exact understanding of each disorder is inevitable.
Download or read book Interfaces Between Metabolic Status and the Reproductive Axis in Periparturient Dairy Cattle written by Stephen Thomas Butler and published by . This book was released on 2004 with total page 410 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 Ruminant Metabolic Diseases An Issue of Veterinary Clinics of North America Food Animal Practice E Book written by Robert J. Van Saun and published by Elsevier Health Sciences. This book was released on 2023-05-12 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this issue of Veterinary Clinics of North America: Food Animal Practice, guest editor Dr. Robert J. Van Saun brings his considerable expertise to the topic of Ruminant Metabolic Diseases. Top experts provide a comprehensive overview of metabolic diseases and treatments in small and large ruminants caused by deficiencies of certain essential nutrients, resulting in disturbances of an animal's normal metabolic state. Contains 12 practice-oriented topics including inflammation, immunity and transition metabolism; ketosis diagnostics and therapy; beef cattle metabolic diseases; hepatic lipidosis in ruminants; and more. Provides in-depth clinical reviews on ruminant metabolic diseases, offering actionable insights for clinical practice. Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.
Download or read book Metabolic Responses of Lactating Dairy Cows to Exogenous Glucagon written by Gerd Bobe and published by . This book was released on 2002 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatty liver is a major metabolic disorder of dairy cows in early lactation that compromises their health status and reproductive performance and in clinical cases decreases milk production and feed intake. Fatty liver can be treated with 14-d continuous, intravenous infusions of 10 mg/d of glucagon. The objective of the current study was to test whether treatment of fatty liver with 14-d subcutaneous injections of glucagon at 7.5 or 15 mg/d, which is more practical than infusion, would cause similar metabolic responses and improve health status and reproductive performance of dairy cows in early lactation. In the main study, multiparous Holstein cows (n=32) were grouped on the basis of their liver triacylglycerol concentration at d 8 postpartum into "Normal" (n=8; triacylglycerol 1% liver wet wt) and "Susceptible" (n=24; triacylglycerol 1% liver wet wt) cows. "Susceptible" cows were assigned randomly to three groups and beginning at d 8 postpartum received 0 (same for "Normal" cows), 2.5, or 5 mg of glucagon in 60 ml 0.15 M NaCl by subcutaneous injections every 8 h for 14 d. Subcutaneous injections of 15 mg/d of glucagon consistently increased concentrations of plasma glucose and insulin for 4 h, decreased concentrations of liver triacylglycerol in cows older than 3.5 years, and tended to decrease concentrations of plasma NEFA and BHBA. The effects of 15 mg/d of glucagon were not limited to the treatment period, because glucagon decreased the incidence of mastitis and days to first ovarian activity after the injection period. These results document that subcutaneous injections of 15 mg/d or glucagon improve metabolic status throughout the injection period and have the potential to treat fatty liver in older cows. The improved metabolic status in cows treated with 15 mg/d of glucagon in early lactation has long-term beneficial effects by improving health status and reproductive performance during the entire lactation.
Download or read book Periparturient Diseases of Dairy Cows written by Burim N. Ametaj and published by Springer. This book was released on 2017-12-21 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the results achieved so far by application of various biological systems (including genomics, transcriptomics, proteomics, and metabolomics) involved in the pathomechanisms and early diagnosis of periparturient diseases as specific biomarkers of disease in cattle. These emerging technologies help to extensively enhance our understanding of the etiology and pathogenesis of periparturient diseases of transition dairy cows. The book includes a chapter dedicated to ‘omics’ sciences and one that discusses the myths established in animal and veterinary sciences in recent decades and emerging, new paradigms. The diseases discussed include metritis, mastitis, laminitis, ketosis, rumen acidosis, periparturient immunosuppression, gastrointestinal microbiota and their involvement in disease, infertility, fatty liver, milk fever, and retained placenta. This book is intended for academics, veterinarians, animal nutritionists, researchers, and graduate students working in the field of ‘omics sciences’ with a special interest in dairy cattle health.
Download or read book Metabolic Responses and Associated Reproductive Parameters in Dairy Cattle Fed Differing Levels and Degradability of Dietary Protein written by Corwin Roy Holtz and published by . This book was released on 1987 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metabolic balance in the prediction of reproductive performance in dairy cows written by Paavo Miettinen and published by . This book was released on 1990 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metabolic and Ovarian Functions of Lactating Dairy Cows written by Yasmin Schuermann and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Reproductive longevity amongst dairy cattle is a hallmark for sustainable dairy production. Nevertheless, subfertility has plagued modern dairy cows. More specifically, failure of cows to physiologically adapt during the transition period can negatively impact subsequent reproductive performance, which is the major cause of involuntary culling in Canadian dairy herds. Although nulliparous heifers are known to have higher reproductive success than their lactating counterparts, there is lack of research investigating the similarities and differences of the metabolic indicators and the oxidative stress markers between nulliparous heifers, primiparous cows, and multiparous cows. Analysis of plasma metabolites revealed that primiparous and multiparous cows have lower levels of circulating glucose, triglycerides, and very low-density lipoprotein and higher levels of total bile acids, total-cholesterol, high-density lipoprotein, low-density lipoprotein, and the ferric reducing ability of plasma compared to nulliparous heifers in the weeks leading up to planned time of breeding. In general, the metabolic profile was drastically altered in multiparous cows where -hydroxybutyric acid levels at one week prior to planned time of breeding was 2-fold higher compared to heifers. We expect that these metabolic profiles were reflected to a large extent in the follicular fluid. Body condition score (BCS) assessment is a management tool to visually appraise lipid mobilization during the transition period. Severe loss of body condition during the transition period until the planned time of breeding has been associated with reduced fertility. Our data showed that cows losing severe body condition had higher levels of circulating non-esterified fatty acids (NEFAs) and ??-glutamyltransferase (GGT) suggesting greater difficulty of liver adaptation to early lactation. These metabolic changes appear to have altered the ovarian follicular microenvironment, since the follicular fluid from the dominant follicle collected at 7 weeks post-partum from cows losing more body condition had lower levels of insulin-like growth factor 1 (IGF1) and estradiol. This is in line with the gene transcription profile of the granulosa cells that was also drastically altered as CYP19A1, NR5A2, IGF1R, and LHCGR transcript levels were lower in cows losing more body condition. Taken together, failure to adapt to early-lactation due to increased lipid mobilization has long-term consequences hindering the development of a competent dominant follicle. To further study the underlying mechanisms of infertility in cattle, we chose to investigate the role of extracellular signal-regulated kinase pathway 1 and 2 (ERK1/2) in bovine ovulation. To study ERK1/2 signaling in vivo for the first time in cattle, we administered PD0325901 (ERK1/2 signaling inhibitor) directly into the dominant follicle of cattle followed by an intramuscular injection of gonadotropin-releasing hormone (GnRH) to stimulate a luteinizing hormone (LH) surge. First, we found that inhibition of ERK1/2 prevented ovulation in cattle. Second, we repeated the experiment collecting the ovary by colpotomy 6h post-GnRH. We then studied global transcriptomics in granulosa cells using RNA-seq technology and established a list of 285 LH-ERK1/2 regulated genes in granulosa cells. In this cohort of genes, we established that EGR1, ADAMTS1, STAT3 and TNFAIP6 expression was drastically decreased in cows treated with PD0325901 + GnRH, where the opposite is true for SLC16A1, which is a monocarboxylate transporter, transporting substances such as -hydroxybutyrate, across the plasma membrane, and no change in STAR expression was observed.Taken together, this thesis provides an insight into the relationship between metabolism and ovarian function in the modern dairy cow." --
Download or read book Long term Effects of Clinical Diseases Postpartum on Performance and Herd Survival of Dairy Cows and on Developmental Programming of Dairy Heifers written by Murilo Romulo Carvalho and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigated whether clinical diseases postpartum have long-term consequences for production, reproduction, and culling of dairy cows, and whether the potential long-term effects on reproduction extend to postnatal life in pregnancies that survive to term. In addition, it also investigated potential developmental programming in heifers associated with the metabolic status of the dam during gestation (nonlactating heifer vs lactating cow). The results showed that clinical diseases postpartum reduce lactation and reproductive performances for a long period after clinical resolution of the disease, and increase culling. In addition, daughters of cows that had disease in the lactation preceding their birth had reduced morbidity up to first lactation but were more likely to leave the herd compared with daughters of cows that did not have disease. Potential developmental programming caused by metabolic status of the dam was also characterized and further contribute to the general understanding of developmental programming in cattle.
Download or read book Relationships Among Nutritional Regimen Metabolic Disorders Reproduction and Production in Dairy Cows During the Transition Period written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reproduction in Farm Animals written by E. S. E. Hafez and published by John Wiley & Sons. This book was released on 2013-05-13 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: When you're looking for a comprehensive and reliable text on large animal reproduction, look no further! the seventh edition of this classic text is geared for the undergraduate student in Agricultural Sciences and Veterinary Medicine. In response to reader feedback, Dr. Hafez has streamlined and edited the entire text to remove all repetitious and nonessential material. That means you'll learn more in fewer pages. Plus the seventh editing is filled with features that help you grasp the concepts of reproduction in farm animals so you'll perform better on exams and in practice: condensed and simplified tables, so they're easier to consult an easy-to-scan glossary at the end of the book an expanded appendix, which includes graphic illustrations of assisted reproduction technology Plus, you'll find valuable NEW COVERAGE on all these topics: Equine Reproduction: expanded information reflecting today's knowledge Llamas (NEW CHAPTER) Micromanipulation of Gametes and In Vitro Fertilization (NEW CHAPTER!) Reach for the text that's revised with the undergraduate in mind: the seventh edition of Hafez's Reproduction in Farm Animals.
Download or read book An Evaluation of the Metabolic Profile Test Predictive Value for Post Partum Disease and Sources of Error in Field Applications of Clinical Chemistry and Hematology Tests in Dairy Cattle written by Elden George Lamprecht and published by . This book was released on 1978 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
