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Response Of Lactating Dairy Cattle To Increasing Levels Of Whole Roasted Soybeans And To Fat Supplementation During Heat Stress
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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 Effect of Feeding Heat-processed Whole Soybeans on Milk Production, Milk Composition, and Milk Fatty Acid Profile by : Mike Socha
Download or read book Effect of Feeding Heat-processed Whole Soybeans on Milk Production, Milk Composition, and Milk Fatty Acid Profile written by Mike Socha and published by . This book was released on 1991 with total page 268 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 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 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 Large Dairy Herd Management by : H. H. Van Horn
Download or read book Large Dairy Herd Management written by H. H. Van Horn and published by American Dairy Science Association. This book was released on 1992 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Feeding Heat Treated Soybeans and Niacin to High Producing Cows in Early Lactation by : Lindsey Spencer Driver
Download or read book Effect of Feeding Heat Treated Soybeans and Niacin to High Producing Cows in Early Lactation written by Lindsey Spencer Driver and published by . This book was released on 1985 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Heat Stress and Dietary Organic Acid and Pure Botanical Supplementation on Growth and Lactation in Dairy Cattle by : Ananda Barbara Portela Fontoura
Download or read book The Effects of Heat Stress and Dietary Organic Acid and Pure Botanical Supplementation on Growth and Lactation in Dairy Cattle written by Ananda Barbara Portela Fontoura and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat stress (HS) compromises the gastrointestinal barrier and leads to inflammation in non-ruminants. However, it is unclear whether exposure to environmental conditions that cause HS enhances gastrointestinal permeability with compromised growth and milk production in dairy cattle. Developing nutritional strategies to manage HS in cattle are of importance to the dairy industry. Dietary supplementation of organic acid and pure botanicals (OA/PB) has been shown to improve growth performance by enhancing gastrointestinal health in swine and poultry species. Because the role of dietary OA/PB supplementation in ruminants had not received prior attention, our objectives were to 1) evaluate the effects of HS and dietary OA/PB supplementation on growth in dairy calves, and 2) evaluate the effects of HS and dietary OA/PB supplementation on gastrointestinal permeability and milk production in mid-lactating dairy cows. For study 1, sixty-two weaned heifer and bull calves (62 ± 2 d; 91 ± 10.9 kg) were randomly assigned to one of five groups (n = 11 to 14/group): thermoneutral conditions (TN-Con), HS conditions (HS-Con), TN conditions and pair-fed to HS-Con (TN-PF), HS with low-dose OA/PB (75 mg/kg of body weight [BW]; HS-Low), or HS with high-dose OA/PB (150 mg/kg of BW; HS-High). After a 7-d acclimation period, calves were exposed to TN or HS for a period of 19 d. Blood samples were collected and growth performance was evaluated. We observed that HS-Con calves had reduced growth compared to TN-Con and TN-PF. Regarding dietary OA/PB supplementation, HS-Low partially restored dry matter intake (DMI) without modifying growth performance. Thus, we conclude that dietary OA/PB supplementation does not improve growth performance in heat-stressed calves. For study 2, forty-six multiparous lactating dairy cows (208 ± 4.65 d in milk; 3.0 ± 0.42 lactation; and 39.2 ± 0.26 kg of milk yield) were randomly assigned to one of four groups (n = 10 to 12/group): TN-Con, HS-Con, TN-PF, or HS supplemented with OA/PB (75 mg/kg of BW; HS-OAPB). Cows acclimated in TN for 7-d, and then exposed to HS or remained in TN for 14-d. Blood and milk samples were collected. Changes in milk production and gastrointestinal permeability were evaluated. We observed that HS-Con cows had reduced DMI, energy-corrected milk yield, and milk protein and lactose yields compared to TN-Con, TN-PF and HS-OAPB cows. Milk- and plasma-urea nitrogen were reduced in HS-OAPB compared to HS-Con cows. Gastrointestinal permeability was greater in HS-Con, relative to TN-Con or TN-PF. We conclude that HS increased gastrointestinal permeability and that OA/PB feeding partially restores lactation performance by increasing DMI and improving intestinal barrier, and thereby enhancing milk yield and nitrogen efficiency.
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1006 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Changing the Dietary Ratio of Fatty Acids Under Different Physiological Conditions Alters Energy Partitioning of Dairy Cows by : Jonas de Souza
Download or read book Changing the Dietary Ratio of Fatty Acids Under Different Physiological Conditions Alters Energy Partitioning of Dairy Cows written by Jonas de Souza and published by . This book was released on 2018 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Evaluation of Fish Meal Supplement on Physiological Response and Milking Performance in Lactating Dairy Cattle Under Heat Stress by : George M. Toups
Download or read book Evaluation of Fish Meal Supplement on Physiological Response and Milking Performance in Lactating Dairy Cattle Under Heat Stress written by George M. Toups and published by . This book was released on 1989 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings by : American Feed Manufacturers' Association. Nutrition Council
Download or read book Proceedings written by American Feed Manufacturers' Association. Nutrition Council and published by . This book was released on 1984 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1989 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heat Treating Soybeans to Maximize Protein Utilization by Ruminants by : Martin Allen Faldet
Download or read book Heat Treating Soybeans to Maximize Protein Utilization by Ruminants written by Martin Allen Faldet and published by . This book was released on 1989 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Feeding Soybeans as a Source of Protein and Fat in Grow-finish Rations for Feedlot Steers by : Eugene Edward Deane Felton
Download or read book Feeding Soybeans as a Source of Protein and Fat in Grow-finish Rations for Feedlot Steers written by Eugene Edward Deane Felton and published by . This book was released on 2002 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybeans (SB) are readily available throughout the Midwest and are not commonly considered a feed ingredient for beef cattle. Soybeans, especially those that have been heat treated, have been used quite extensively in dairy and forage rations with few negative results being elicited. Previous work has suggested that SB improve growth performance and enhance ruminant product quality. Data on the effects of feeding raw SB on growth performance and carcass quality is limiting. A series of experiments were conducted to determine the responses of feeding SB to finishing steers as a source of dietary protein and fat. The first two studies involved feeding increasing levels of whole raw soybeans (WRS) to heavyweight finishing steers and determining responses to increased inclusion levels on performance and carcass quality. It was noted with feeding WRS, growth was delayed during roughly the first half of both studies and rebounded during the second half with little effect on any carcass characteristics. Feed efficiency was improved with WRS feeding by affecting intake and/or growth. In these first two studies, two different cattle types were used. In the first study large-frame continental type steers were used, where as smaller-framed English type steers were used in the second. In the study with the large-framed steers, marbling scores were not as uniform as they were in the second and it appeared that feeding WRS pushed a greater number of steers into higher quality grades. This effect was not observed for the second study. If the improvement in marbling scores were real, we speculated that this was a result of the additional dietary fat being fed with the feeding of WRS. A third experiment was conducted reevaluating the large-framed steer model and investigated the use of different sources of dietary fat. Sources were normal and high oleate SB and choice white grease. Fat addition improved feed efficiency, decreased feed intake and improved marbling scores by one-fourth of a marbling score grade. Source of fat did alter fatty acid and tocopherol composition of longissimus muscle and fatty acid composition of subcutaneous and perinephric fat. Lastly, to determine the effects of roasting and grinding of WRS on rumen fermentation, digestive function and blood metabolites a study using cannulated steers was conducted. Soybeans increased digestibility of dietary CP, OM, DM and increased protein fermentation end-products. Soybeans decreased liquid passage rate and increased the microbial contribution to duodenal protein and fat flow. Soybeans altered plasma and blood cell fatty acid profiles and increased circulating plasma levels of fatty acids and cholesterol. Treatment response differences were detected for processed vs. unprocessed soybeans but these differences were small.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1992-04 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
