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Effects Of Supplemental Fats On Intake Production And Heat Stress In Lactating Holstein Cows In Summer
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Book Synopsis Effects of Supplemental Fats on Intake, Production, and Heat Stress in Lactating Holstein Cows in Summer by : Richard Glynn Saunders
Download or read book Effects of Supplemental Fats on Intake, Production, and Heat Stress in Lactating Holstein Cows in Summer written by Richard Glynn Saunders and published by . This book was released on 1990 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Feeding Supplemental Palmitic Acid (C16:0) on Performance and Milk Fatty Acid Profile of Lactating Dairy Cows Under Summer Heat by : Jesse Lee Warntjes
Download or read book Effects of Feeding Supplemental Palmitic Acid (C16:0) on Performance and Milk Fatty Acid Profile of Lactating Dairy Cows Under Summer Heat written by Jesse Lee Warntjes and published by . This book was released on 2006 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Response of Lactating Dairy Cattle to Increasing Levels of Whole Roasted Soybeans and to Fat Supplementation During Heat Stress by : Donna Marie Knapp
Download or read book Response of Lactating Dairy Cattle to Increasing Levels of Whole Roasted Soybeans and to Fat Supplementation During Heat Stress written by Donna Marie Knapp and published by . This book was released on 1990 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Designing Foods by : National Research Council
Download or read book Designing Foods written by National Research Council and published by National Academies Press. This book was released on 1988-02-01 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This lively book examines recent trends in animal product consumption and diet; reviews industry efforts, policies, and programs aimed at improving the nutritional attributes of animal products; and offers suggestions for further research. In addition, the volume reviews dietary and health recommendations from major health organizations and notes specific target levels for nutrients.
Book Synopsis Nutritional Ecology of the Ruminant by : Peter J. Van Soest
Download or read book Nutritional Ecology of the Ruminant written by Peter J. Van Soest and published by Cornell University Press. This book was released on 2018-09-05 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monumental text-reference places in clear persepctive the importance of nutritional assessments to the ecology and biology of ruminants and other nonruminant herbivorous mammals. Now extensively revised and significantly expanded, it reflects the changes and growth in ruminant nutrition and related ecology since 1982. Among the subjects Peter J. Van Soest covers are nutritional constraints, mineral nutrition, rumen fermentation, microbial ecology, utilization of fibrous carbohydrates, application of ruminant precepts to fermentive digestion in nonruminants, as well as taxonomy, evolution, nonruminant competitors, gastrointestinal anatomies, feeding behavior, and problems fo animal size. He also discusses methods of evaluation, nutritive value, physical struture and chemical composition of feeds, forages, and broses, the effects of lignification, and ecology of plant self-protection, in addition to metabolism of energy, protein, lipids, control of feed intake, mathematical models of animal function, digestive flow, and net energy. Van Soest has introduced a number of changes in this edition, including new illustrations and tables. He places nutritional studies in historical context to show not only the effectiveness of nutritional approaches but also why nutrition is of fundamental importance to issues of world conservation. He has extended precepts of ruminant nutritional ecology to such distant adaptations as the giant panda and streamlined conceptual issues in a clearer logical progression, with emphasis on mechanistic causal interrelationships. Peter J. Van Soest is Professor of Animal Nutrition in the Department of Animal Science and the Division of Nutritional Sciences at the New York State College of Agriculture and Life Sciences, Cornell University.
Book Synopsis Nutrient Requirements of Dairy Cattle by : National Research Council
Download or read book Nutrient Requirements of Dairy Cattle written by National Research Council and published by National Academies Press. This book was released on 2001-02-09 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: This widely used reference has been updated and revamped to reflect the changing face of the dairy industry. New features allow users to pinpoint nutrient requirements more accurately for individual animals. The committee also provides guidance on how nutrient analysis of feed ingredients, insights into nutrient utilization by the animal, and formulation of diets to reduce environmental impacts can be applied to productive management decisions. The book includes a user-friendly computer program on a compact disk, accompanied by extensive context-sensitive "Help" options, to simulate the dynamic state of animals. The committee addresses important issues unique to dairy science-the dry or transition cow, udder edema, milk fever, low-fat milk, calf dehydration, and more. The also volume covers dry matter intake, including how to predict feed intake. It addresses the management of lactating dairy cows, utilization of fat in calf and lactation diets, and calf and heifer replacement nutrition. In addition, the many useful tables include updated nutrient composition for commonly used feedstuffs.
Book Synopsis Effect of Summer Conditions on Feed Intake and Milk Yield by : Leslie E. Maust
Download or read book Effect of Summer Conditions on Feed Intake and Milk Yield written by Leslie E. Maust and published by . This book was released on 1971 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Hormonal Supplementation on Milk Production and Related Physiological Functions in Holstein Cows Exposed to Heat Stress by : Mohammed El-Teraifi Mohammed
Download or read book Effects of Hormonal Supplementation on Milk Production and Related Physiological Functions in Holstein Cows Exposed to Heat Stress written by Mohammed El-Teraifi Mohammed and published by . This book was released on 1985 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Physiology of Livestock by : R. J. Collier
Download or read book Environmental Physiology of Livestock written by R. J. Collier and published by John Wiley & Sons. This book was released on 2012-02-07 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental stress is one of the most significant factors affecting livestock performance and health, and it is only expected to increase with effects of global warming. Environmental Physiology of Livestock brings together the latest research on environmental physiology, summarizing progress in the field and providing directions for future research. Recent developments in estimating heat stress loads are discussed, as well as key studies in metabolism, reproduction, and genetic expressions. Environmental Physiology of Livestock begins with a survey of current heat indexing tools, highlighting recent discoveries in animal physiology, changes in productivity levels, and new technologies available to better estimate stress response. Using this synopsis as a point of orientation, later chapters hone in on major effects of heat stress, including changing metabolic pathways and nutrient requirements, endocrine regulation of acclimation to environmental stress, and reduced reproductive performance. The text concludes with a thorough discussion of environmental effects on gene expressions, providing important insight for future breeding practices. Environmental Physiology of Livestock is a globally contributed volume and a key resource for animal science researchers, geneticists, and breeders.
Book Synopsis The Use of Lactation Curves to Evaluate the Effects of Rumen-inert Fat Supplementation to High-producing Holstein Cattle Already Receiving High Levels of Dietary Fat by : Troy A. Scott
Download or read book The Use of Lactation Curves to Evaluate the Effects of Rumen-inert Fat Supplementation to High-producing Holstein Cattle Already Receiving High Levels of Dietary Fat written by Troy A. Scott and published by . This book was released on 1995 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Protected Fat When Fed to Dairy Cattle and the Interaction Between Supplemental Fat and Antibiotics in Mixed Cultures by :
Download or read book Effects of Protected Fat When Fed to Dairy Cattle and the Interaction Between Supplemental Fat and Antibiotics in Mixed Cultures written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fat is added to diets of lactating dairy cattle as an affordable method of increasing the amount of energy available to the animals. Unsaturated fatty acids are desirable end-products of milk production. However, their presence in the rumen can be toxic to ruminal bacteria, which will then decrease digestion. Unsaturated fatty acids are biohydrogenated into saturated fatty acids by specific bacteria in the rumen, which will decrease positive benefits associated with their consumption. Our first study evaluates the efficiency of calcium salts VALFEED 100M and VALFEED 200 in protecting unsaturated fatty acids from biohydrogenation in the rumen and also observes the effects of these 'protected fats' on lactation performance. Twenty-eight Holstein cows in early lactation were divided equally into four different treatment groups: 1) Control (with no supplemental fat); 2) Prilled fat; 3) Calcium salt of VALFEED 100M; 4) Calcium salt of VALFEED 200. Fat supplements were added to diets in place of corn in the concentrate mix at 3.2% of total dry matter intake. Cows were housed in free stalls equipped with Calan gates. The cows were fed twice daily, at 0800 and 1500 in amounts to allow ad libitum consumption. Weekly feed samples were taken and dried in order to calculate daily dry matter intake. Milk production was measured daily, and milk fat and protein content were analyzed at days 30 and 90. Body weights were taken at the beginning (day 0) and the end (day 90) of the trial. Prilled and VALFEED 100M fat supplements decreased (P 0.05) dry matter intake. Body weights were higher (P
Book Synopsis Effects of Nutritional Supplementation of Palmitic and Stearic Acid on Milk Composition and Milk Fat Globule Membrane in Multiparous Holstein Dairy Cows and Primiparous Brown Swiss Cows by : Mary Kathleen Beam
Download or read book Effects of Nutritional Supplementation of Palmitic and Stearic Acid on Milk Composition and Milk Fat Globule Membrane in Multiparous Holstein Dairy Cows and Primiparous Brown Swiss Cows written by Mary Kathleen Beam and published by . This book was released on 2007 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Environment on Nutrient Requirements of Domestic Animals by : National Research Council
Download or read book Effect of Environment on Nutrient Requirements of Domestic Animals written by National Research Council and published by National Academies Press. This book was released on 1981-02-01 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Unsaturated to Saturated Fatty Acid Ratios of Supplemental Fat on Yield and Composition of Milk, Plasma Parameters, and Nutrient Digestion in Lactating Holstein Cows by : Catherine Diane Burch
Download or read book Influence of Unsaturated to Saturated Fatty Acid Ratios of Supplemental Fat on Yield and Composition of Milk, Plasma Parameters, and Nutrient Digestion in Lactating Holstein Cows written by Catherine Diane Burch and published by . This book was released on 1998 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Management Strategies to Reduce Effects of Thermal Stress on Lactating Dairy Cattle by : Rosemarie Burgos Zimbelman
Download or read book Management Strategies to Reduce Effects of Thermal Stress on Lactating Dairy Cattle written by Rosemarie Burgos Zimbelman and published by . This book was released on 2008 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two strategies to reduce impact of heat stress on high producing dairy cows were examined. The first was to recalculate the temperature-humidity index (THI) using high producing dairy cows under diurnal summer conditions. This re-evaluation confirmed that current THI values underestimate the severity of heat stress levels. Therefore, cooling of dairy cattle during warm summer months should begin at a THI of 68.A second objective involved three studies carried out to evaluate use of niacin in dairy cow rations to improve evaporative heat loss and resistance to heat stress. Niacin is known to cause intense vasodilation in human and lab species. We hypothesized that increasing vasodilation would improve evaporative heat loss in dairy cows. In the first niacin study, supplementation of lactating dairy cows with an encapsulated rumen by-pass form of niacin (NIASHURETM; Balchem Corporation, New Hampton, NY) and proved effective in alleviating some affects of heat stress during mild thermal stress. This was observed through increased evaporative heat loss, increased water intake to support the increased sweating rate, decreased rectal and core temperatures. Past research demonstrated that the possible mechanism for vasodilation affects seen by niacin were most likely due to prostaglandin D secretions. Niacin apparently may act through increased prostaglandin D and E production and secretion by Langerhans cells which then act upon vascular endothelial prostaglandin D receptors to increase vasodilation. Additionally, we and others have now shown that these prostaglandins induced elevated heat shock protein gene expression leading to improved cellular viability under heat stress conditions (42 ðC). No studies have evaluated impact of encapsulated niacin on milk yield and composition during periods of thermal stress under commercial dairy conditions. Therefore, the objective of the last study was to examine the effects of encapsulated niacin during heat stress on milk production and composition as well as core body temperatures under commercial conditions. We concluded that feeding encapsulated niacin did reduce body core temperature but did not increase daily milk yields; however, milk fat and protein percentages were increased thereby, increasing 4% fat- and energy-corrected milk yields significantly when animals were fed encapsulated niacin.
Book Synopsis Effects of Amino Acid and Fatty Acid Supplementation on Production Responses of Lactating Cows by : Ariana Nicole Negreiro
Download or read book Effects of Amino Acid and Fatty Acid Supplementation on Production Responses of Lactating Cows written by Ariana Nicole Negreiro and published by . This book was released on 2021 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addition of fatty acids (FA) and amino acid (AA) supplements to dairy cow diets is becoming common practice due to the growing demand to increase milk fat and milk protein yields. This thesis contains two studies that evaluate the effects of supplemental palmitic (C16:0) and oleic (cis-9 C18:1) acids, and methionine (Met) and lysine (Lys), on lactating dairy cows. The first experiment used a product containing 80% C16:0 + 10% cis-9 C18:1 supplied at 1.5% diet dry matter (DM) and supplemental Met and Lys in low forage diets (LF) and a control diet with no added FA or AA at typical midwestern forage content (CON). Compared with CON, LF increased dry matter intake (DMI), milk fat yield, milk protein yield, energy-corrected milk (ECM) yield, and body condition score (BCS). In the second experiment, different ratios of palmitic (C16:0) and oleic (cis-9 C18:1) acid were supplemented in basal diets containing high CP without supplemental AA (HP) or low CP with supplemental AA (LP). FA treatments were products consisting of 80% C16:0 + 10% cis-9 C18:1 (PA) and 60% C16:0 + 30% cis-9 C18:1 (OA) supplemented at 1.5% diet DM and a non-FA supplemented control diet (CON). No interactions were observed between basal diet and FA treatment for the yields of milk or milk components. Compared with HP, LP decreased milk urea nitrogen and blood urea nitrogen concentrations, and did not impact milk, milk fat, or milk protein yields. FA treatments decreased DMI and increased milk yield, fat yield, ECM yield, and feed efficiency. Results from this work can provide information that can be used as a foundation for future studies and to guide feeding decision to maximize performance and farm income.
Book Synopsis Effects of Supplemental Dietary Fat on Rumen Fermentation, Nutrient Flow to the Duodenum, and Milk Yield and Composition of Lactating Dairy Cows by : Charles Karuku Gachuiri
Download or read book Effects of Supplemental Dietary Fat on Rumen Fermentation, Nutrient Flow to the Duodenum, and Milk Yield and Composition of Lactating Dairy Cows written by Charles Karuku Gachuiri and published by . This book was released on 1993 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
