Download or read book The effect of plane of nutrition during late pregnancy in beef cows and during the first year of life in beef cattle on subsequent animal performance written by Michael J. Drennan and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Plane of Nutrition During Late Pregnancy in Beef Cows and During the First Year of Life in Beef Cattle on Subsequent Animal Performance written by Michael J. Drennan and published by . This book was released on 1974 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutrient Requirements of Beef Cattle written by Subcommittee on Beef Cattle Nutrition and published by National Academies Press. This book was released on 2000-05-16 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: As members of the public becomes more concious of the food they consume and its content, higher standards are expected in the preparation of such food. The updated seventh edition of Nutrient Requirements of Beef Cattle explores the impact of cattle's biological, production, and environmental diversities, as well as variations on nutrient utilization and requirements. More enhanced than previous editions, this edition expands on the descriptions of cattle and their nutritional requirements taking management and environmental conditions into consideration. The book clearly communicates the current state of beef cattle nutrient requirements and animal variation by visually presenting related data via computer-generated models. Nutrient Requirements of Beef Cattle expounds on the effects of beef cattle body condition on the state of compensatory growth, takes an in-depth look at the variations in cattle type, and documents the important effects of the environment and stress on food intake. This volume also uses new data on the development of a fetus during pregnancy to prescribe nutrient requirements of gestating cattle more precisely. By focusing on factors such as product quality and environmental awareness, Nutrient Requirements of Beef Cattle presents standards and advisements for acceptable nutrients in a complete and conventional manner that promotes a more practical understanding and application.
Download or read book Irish Journal of Agricultural and Food Research written by and published by . This book was released on 1992 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluating the Effects of Pre and Post AI Nutrition on Embryo Quality and Reproductive Efficiency of Beef Cattle written by Ricardo P. Arias and published by . This book was released on 2017 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of nutrition during late gestation and after insemination, as well as the effects of energy reserves on reproductive function of the beef female and subsequent growth and reproductive function of their offspring were investigated. The aims of this research were: 1) to evaluate how a change in nutritional intake immediately after insemination would affect pregnancy success and concentrations of hormonal mediators, IGF-I and progesterone, 2) to determine the influence that postpartum energy reserves have on embryo viability, early embryonic development, and embryo quality, and 3) to evaluate the impact that maternal protein supplementation of irrigated meadow grass hay during the last trimester of gestation has on cow BW and BCS, calf birth and weaning BW, conception rates of heifer offspring, and feedlot performance of steer offspring. Findings from Chapter III show that suppression in nutritional plane of heifers during the 21-d following AI has a negative impact on heifer performance, circulating concentrations of IGF-I, and AI pregnancy rates. Thus, it is biologically beneficial to ensure that heifers maintain their pre-breeding plane of nutrition during the 21-d following AI. Chapter IV presents evidence that cows with BCS 5.4 tend to produce more total embryos after a superovulation program compared to cows BCS 4.3. Additionally, peripheral concentrations of IGF-I were greatest in cows with a BCS 5.4, which may be an indicator of a more suitable environment in the uterus for further development of an embryo. In Chapter V, cows supplemented with protein during the last trimester of gestation had a greater BW gain and BCS change by calving time. Weaning BW of calves born to protein supplemented dams was greater when compared to calves from non-supplemented cows. There was a trend for pregnancy rates of heifers born supplemented dams to be 16 percentage points greater (95% vs. 79%). And although dam supplementation did not seem to affect intakes, gains, feed efficiency or carcass characteristics on the male progeny in this study, advantages have been observed other peer-reviewed research studies that support the concept that late gestation supplementation can have an impact subsequent progeny.
Download or read book Annual Report of the Department of Agriculture and Stock for the Year written by Queensland. Dept. of Agriculture and Stock and published by . This book was released on 1959 with total page 568 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 Effects of Prepartum Plane of Nutrition During Mid Or Late Gestation on Beef Cow BW BCS Blood Hormone Concentrations and Preimplantation Embryo written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report of the Department of Agriculture and Stock written by Queensland. Department of Primary Industries and published by . This book was released on 1964 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Total Feed and Protein Intake on Reproductive Performance in the Beef Female Through Second Calving written by J. N. Wiltbank and published by . This book was released on 1965 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutritional Management of Beef Cows During Late Gestation to Enhance Offspring Productivity written by Rodrigo Da Silva Marques and published by . This book was released on 2017 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two experiments evaluated nutritional management of late-gestating beef cows to enhance offspring productivity. The objective of experiment 1 was to evaluate the effects of organic and inorganic Cu, Mn, Zn, and Co supplementation to beef cows during late-gestation on performance and physiological responses of the offspring. The objective of experiment 2 was to evaluate the effects of rumen-protected essential fatty acid (EFA) supplementation to beef cows during the last trimester of gestation on performance and physiological responses of the offspring. In experiment 1, 84 multiparous, non-lactating, pregnant Angus × Hereford cows were ranked by pregnancy type (AI = 56 and natural service = 28), BW, and BCS, and allocated to 21 drylot pens at the end of their 2nd trimester of gestation (day 0). Pens were assigned to receive forage-based diets containing: 1) sulfate sources of Cu, Co, Mn, and Zn (INR), 2) an organic complexed source of Cu, Mn, Co, and Zn (AAC; Availa®4; Zinpro Corporation, Eden Prairie, MN), or 3) no supplemental Cu, Co, Mn, and Zn (CON). Diets were offered from day (d) 0 until calving and formulated to meet requirements for energy, protein, macrominerals, Se, I, and vitamins. The INR and AAC diets provided the same daily amount of Cu, Co, Mn, and Zn. Cow BW and BCS were recorded, and liver samples were collected on d -10 and 2 weeks (wk; d 75) before the calving season. Within 3 h after calving, calf BW was recorded, liver samples were collected, and the expelled placenta was retrieved (n = 47 placentas). Calves were weaned on d 283 of the experiment, preconditioned for 45 d (d 283 to 328), transferred to a growing lot on d 328, and moved to a finishing lot on d 440 where they remained until slaughter. Liver Co, Cu, and Zn concentrations on d 75 were greater (P ≤ 0.05) for INR and AAC compared with CON cows, whereas INR had reduced (P = 0.04) liver Co but greater (P = 0.03) liver Cu compared with AAC cows. In placental cotyledons, Co concentrations were greater (P ≤ 0.05) in AAC and INR compared with CON cows, whereas Cu concentrations were only increased (P = 0.05) in AAC compared with CON cows. Calves from INR and AAC had greater (P
Download or read book Annual Report Queensland Department of Primary Industries written by Queensland. Department of Primary Industries and published by . This book was released on 1964 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arthur s Veterinary Reproduction and Obstetrics E Book written by David E. Noakes and published by Elsevier Health Sciences. This book was released on 2018-10-30 with total page 849 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the standard theriogenology text for veterinary students, Veterinary Reproduction and Obstetrics is also a great reference to keep post-graduation. The 10th edition of this book has been thoroughly updated to include normal reproduction and reproductive disorders, as well as diseases in the common and less common domestic species (dogs, cats, pigs, and horses as well as llamas, alpacas, and camels). This sorely needed information is vital for practicing in underdeveloped countries which lack the technology, equipment, and personnel offered in the U.S. With many international contributing authors, this one-of-a-kind text includes developments in reproductive biology and endocrinology from across the globe. Only textbook covering all major domestic mammalian species ensures you get consistent, authoritative advice on all species that experience challenges related to reproduction and obstetrics. Only book available that covers all aspects of theriogenology in all major domestic mammalian species recognizes the importance of species from every inch of the globe. A practical, clinical approach to the content provides you with the instruction you need to improve your clinical proficiency. Comparative aspects of theriogenology and obstetrics helps you to see beyond your species of immediate interest, and broaden your scope of knowledge and understanding of the discipline. Consistent leadership of David Noakes through nine previous editions makes this the most highly regarded text worldwide in this genre. NEW! Extensive coverage of less-common domestic species prepares you to work with these animals in developing countries where they’re more common. NEW! Black and white images replaced with color pictures to optimize full-color design and demonstrate specific techniques. NEW! Additional international contributors provide you with a global, multi-faceted perspective on a variety of species.
Download or read book Nutrient Requirements of Beef Cattle written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-06-16 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1944, the National Research Council (NRC) has published seven editions of the Nutrient Requirements of Beef Cattle. This reference has guided nutritionists and other professionals in academia and the cattle and feed industries in developing and implementing nutritional and feeding programs for beef cattle. The cattle industry has undergone considerable changes since the seventh revised edition was published in 2000 and some of the requirements and recommendations set forth at that time are no longer relevant or appropriate. The eighth revised edition of the Nutrient Requirements of Beef Cattle builds on the previous editions. A great deal of new research has been published during the past 14 years and there is a large amount of new information for many nutrients. In addition to a thorough and current evaluation of the literature on the energy and nutrient requirements of beef in all stages of life, this volume includes new information about phosphorus and sulfur contents; a review of nutritional and feeding strategies to minimize nutrient losses in manure and reduce greenhouse gas production; a discussion of the effect of feeding on the nutritional quality and food safety of beef; new information about nutrient metabolism and utilization; new information on feed additives that alter rumen metabolism and postabsorptive metabolism; and future areas of needed research. The tables of feed ingredient composition are significantly updated. Nutrient Requirements of Beef Cattle represents a comprehensive review of the most recent information available on beef cattle nutrition and ingredient composition that will allow efficient, profitable, and environmentally conscious beef production.
Download or read book Managing the Prenatal Environment to Enhance Livestock Productivity written by Paul L. Greenwood and published by Springer Science & Business Media. This book was released on 2010-04-27 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prenatal life is the period of maximal development in animals, and it is well recognised that factors that alter development can have profound effects on the embryonic, fetal and postnatal animal. Scientists involved in research on livestock productivity have for decades studied postnatal consequences of fetal development on productivity. Recently, however, there has been a surge in interest in how to manage prenatal development to enhance livestock health and productivity. This has occurred largely due to the studies that show human health in later life can be influenced by events during prenatal life, and establishment of the Fetal Origins and the Thrifty Phenotype Hypotheses. This book, Managing the Prenatal Environment to Enhance Livestock Productivity reviews phenotypic consequences of prenatal development, and provides details of mechanisms that underpin these effects in ruminants, pigs and poultry. The chapters have been divided into three parts: Quantification of prenatal effects on postnatal productivity, mechanistic bases of postnatal consequences of prenatal development and regulators of fetal and neonatal nutrient supply. Managing the Prenatal Environment to Enhance Livestock Productivity is a reference from which future research to improve the level of understanding and capacity to enhance productivity, health and efficiency of livestock in developing and developed countries will evolve. It is particularly timely given the development of molecular technologies that are providing new insight into regulation and consequences of growth and development of the embryo, fetus and neonate.
Download or read book Proceedings of the Ruakura Farmers Conference written by and published by . This book was released on 1976 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Maternal Stimuli During Fetal Development on Beef Progeny Performance written by Joslyn K. Beard and published by . This book was released on 2017 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two experiments were conducted to evaluate impacts of maternal environment during fetal development on subsequent beef progeny performance. Experiment 1 utilized mature Angus x Hereford cows to evaluate the effects of protein supplementation offered to dams during late gestation on progeny performance. Cows were allocated to one of two treatments: 1) grazing native dormant range with no supplementation (CON) or 2) grazing native dormant range with 36% CP supplementation (SUPP). Cow performance did not differ based on treatment; however, cow serum progesterone concentration was different (P
