Download or read book Effects of Prepartum Dry Matter Intake and Forage Percentage on Postpartum Performance of Lactating Diary Cows written by Christopher Scott Holcomb and published by . This book was released on 2000 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

Download or read book Effect of High Versus Low Dietary Energy Immediately Prepartum on the Performance of the Dairy Cow Early in Lactation written by Jaime R. Moya-́Guzmań and published by . This book was released on 1986 with total page 198 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 Ruminant Nutrition written by Robert Jarrige and published by John Libbey Eurotext. This book was released on 1989 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deals with feed evaluation systems, the nutrient requirements of ruminant livestock and the feeding value of a wide range of feedstuffs. This book lists about 800 typical forages, 65 crop residues and 120 concentrate and by-product feeds. It is suitable for teachers, specialist scientists and industrialists.

Download or read book Effects of Forage Quality and Management Decisions on Feed Intake of Lactating Dairy Cows written by Michael Devin Miller and published by . This book was released on 2020 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dry matter intake (DMI) is one of the most important factors affecting lactational performance and health of dairy cows. Control of DMI in dairy cattle is complicated and multifactorial, but we have chosen to prioritize the two main components that primarily drive farm profitability: forage quality and cow comfort. Brown midrib-3 (BM3) genetics in corn silage typically result in greater fiber digestibility and less indigestible fiber, which result in greater DMI and milk production compared to conventional, non-BM (CON) corn silage. Trace minerals may negatively affect fiber digestion by solubilizing in the rumen. Importantly, hydroxy trace minerals (HTM) are less soluble in the rumen compared to sulfate sources (STM). Still, to-date, no models have inputs that reflect social environment factors such as stocking density and feeding frequency. The objectives of this dissertation were to: 1) evaluate the effect of source of corn silage and trace mineral on lactational performance, total tract digestibility (TTD) of nutrients, and rumen fermentation, and 2) create a model that accurately quantifies the effect of management decisions on DMI. The study addressing the first objective (Chapters 2 and 3) investigated the effects of source of corn silage (CON or BM3) and trace minerals (STM or HTM) on lactational performance, TTD of nutrients, and particle passage rates. Sixteen Holstein cows averaging 82 (SE = 3) days in milk were used in a replicated 4 x 4 Latin square design with a 2 x 2 factorial arrangement of treatments. The dietary treatments were: 1) CON-STM, 2) CON-HTM, 3) BM3-STM, and 4) BM3-HTM. There was no significant interaction between corn silage and trace mineral for DMI and milk yield. Cows fed the BM3 diets had greater DMI and milk yield compared to the cows fed the CON diets. The cows fed the HTM diets had greater DMI than cows fed STM diets. The cows fed the BM3 diets had greater TTD of dry matter (DM) and organic matter (OM) than cows fed the CON diets. Cows fed the HTM diets had a tendency for greater TTD of neutral detergent fiber (NDF) than the cows fed STM diets. Cows fed the BM3 diets had a faster passage rate of small- and medium-sized corn silage NDF particles than cows fed the CON diets. The study addressing the second objective (Chapter 4) created a model that accurately quantifies the effects of stocking density and feeding frequency on behavior and performance of lactating dairy cattle. The foundation of the management model was a time budget. The eating time was predicted using common on-farm measures (NDF content, physically effective NDF, body weight, and milk yield) and had a good predictive ability with a mean absolute error of 39 min/d regardless of parity. Stocking density affected lying time, which accounted for 76% of the variance in lying time. The adjusted lying time was then used to predict a milk yield, which accounted for 36% of the variance in milk yield. The peuNDF240 accounted for 60% of the variance in DMI. Brown midrib-3 corn silage enhanced DMI, milk yield, TTD of OM, and greater passage rate of corn silage particles. Hydroxy trace minerals improved DMI, tended to improve TTD of NDF. The management model appeared to be a useful tool, although more data and research are needed to validate the model. In the future, hopefully, both forage quality and management decisions will be included in the same nutritional model to predict feed intake more accurately.

Download or read book Effects of Dietary Moisture on Dry Matter Intake by Lactating Dairy Cows written by Ann Maria De Grassi and published by . This book was released on 1987 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physiological Effects in Dairy Cows of Changes in the Forage written by Asdrubal Hernandez-Urdaneta and published by . This book was released on 1975 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Input output Response of Dairy Cows Fed a Complete Ration of Either a Constant Or Variable Forage to concentrate Ratio Over Two Lactations written by Richard Arnold Everson and published by . This book was released on 1973 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Varying Dry Period Length on Lactation Performance Efficiency of Production and Reproduction and Energy Status of Dairy Cattle written by Robin Renee Rastani and published by . This book was released on 2005 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ruminant Physiology written by Pierre Cronjé and published by CABI. This book was released on 2000 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Symposium on Ruminant Physiology (ISRP) is the premier forum for presentation and discussion of advances in knowledge of the physiology of ruminant animals. This book brings together edited versions of the keynote review papers presented at the symposium.

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 Physical Limitation of Dry Matter Intake in Lactating Dairy Cows written by Timothy R. Johnson and published by . This book was released on 1991 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NorFor written by Harald Volden and published by Springer Science & Business Media. This book was released on 2011-10-05 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: NorFor is a semi-mechanistic feed evaluation system for cattle, which is used by advisors in Denmark, Iceland, Norway and Sweden. This book describes in detail the system and it covers five main sections. The first is concerned with information on feed characteristics, feed analysis and feed digestion methods. The second section describes the digestion and metabolism in the gastrointestinal tract and the supply and requirement of energy and metabolizable amino acids. The third section considers the prediction of feed intake and physical structure of the diet. The fourth section focuses on model evaluation and the final section provides information on the IT solutions and feed ration formulation by a non-linear economical optimization procedure. This book will be of significant interest to researchers, students and advisors of cattle nutrition and feed evaluation.

Download or read book Effects of Nonfiber Carbohydrate and Niacin on Periparturient Metabolic Status and Lactation Performance of Dairy Cows written by Douglas John Minor and published by . This book was released on 1997 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Impact of Frequency of Grain Feeding and Sequencing of Forage and Grain Feeding on Performance of Lactating Dairy Cows written by Randy Alan Thompson and published by . This book was released on 1986 with total page 138 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.