Download or read book Nutritional Perturbation of Milk Protein Content in the Lactating Dairy Cow written by John Paul Cant and published by . This book was released on 1992 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutritional perturbation of milk protein content in the lactating dairy cow John Paul Cant written by John P. Cant and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutrition and Lactation in the Dairy Cow written by Philip C. Garnsworthy and published by Butterworth-Heinemann. This book was released on 1988 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review on Effect of Feeding Dairy Cow with Protected Fat and Protein on milk Yield and its Composition written by Tamene Bayisa and published by GRIN Verlag. This book was released on 2018-03-13 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seminar paper from the year 2017 in the subject Veterinary medicine, Jimma University College of Agriculture and Veterinary Medicine, language: English, abstract: Objective of this review is focus on effect of feeding protected fat and protected protein on milk yield and its composition and how these nutrients are protected. Many researchers in this review investigate that the responses are highly dependent on the type of fat and protein supplement and the stage of lactation. A higher milk response was observed with saturated than with unsaturated fat supplements. Diet with added fat increase milk production compared with a control diet without added fat in cows. Feeding of bypass fat resulted in significant increase in milk yield and Fat Corrected Milk yield particularly in early lactation. The source of Protected fat are (origin (animal, plant, processed or whole oilseeds, calcium salts) and Cereal Grains such as corn, wheat, Barly, oil seeds, sun flower, cotton seed, soybeans and canola). The supplementation of protected protein in the diets of lactating animals increases the milk yield due to proportionate increase in the supply of amino acids to the host postruminally Milk yield in cows fed protected methionine for the whole experimental period was numerically higher than in cows of the other groups. However, the difference was not statistically significant .At the centeral high land of Ethiopia the Treatment of shredded wheat and barley straw with urea, molasses, salt and water prior to feeding is a technology that should be considered . Cows with excessive body tissue mobilisation at this stage may take up to 20 weeks to regain a positive energy balance status. Key words milk yield, composition ,protected fat , protein protected
Download or read book Protein Nutrition in Dairy Cows written by Paulina Letelier and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The release of N into the environment is having a severe negative impact in the ecosystems and human health. The dairy industry is under pressure to improve the N utilization and reduce the N losses to the environment. This work comprises 1 meta-analysis, and 2 cow experiments that aimed to study the effect of protein nutrition, amino acids (AA), and sampling methodologies on cow performance, and N utilization responses of lactating dairy cows. The meta-analysis was conducted to determine the association of plasma essential AA (EAA) profile with cow performance and plasma urea nitrogen (PUN). A hierarchical clustering revealed 2 plasma EAA clusters. Cows in cluster 1 had lower proportion of Leu and Val and greater proportion of Phe, Lys, Ile and Thr in total plasma EAA, greater milk, protein and fat yield and numerically lower PUN than cows in cluster 2. Our findings suggested the existence of an association between the plasma EAA profile and productive performance. The first cow experiment evaluated three protocols to determine urinary urea-N (UUN) excretion, the end-product of N metabolism in dairy cows. Urinary urea-N excretion was lower when determined by spot sampling compared to bladder catheterization or via an external collection cup device. Urinary urea-N and creatinine concentration were greater for spot sampling than for bladder catheterization. Urine specific gravity explained 66.5, 73.2, and 32.1% of the variation in urine output for bladder catheterization, collection cup and spot sampling, respectively. Increasing salt in the diet tended to increase urine output, decrease urinary urea concentration as well as milk protein concentration and yield. Finally, the last cow experiment evaluated production performance of dairy cows when fed 4 levels of dietary crude protein (CP) at different stages of lactation. Milk energy output was influenced by the interaction between dietary CP and stage of lactation. At 180 days in milk, feeding diets with more than 16.3% up to 17.4% CP marginally increased milk energy output from 31.5 to 32.6 Mcal/d. At 270 days in milk, the predicted responses of milk energy output to dietary CP decreased, resulting in a marginal improvement (24.5 vs. 25.8 Mcal/d) when cows were fed diet with more than 15.6% up to 16.9% CP. Nitrogen use efficiency linearly decreased with increasing levels of dietary CP.
Download or read book The Effects of Two Forms of Slow release Insulin on Lactating Dairy Cow Metabolism and Milk Component Production written by Laurie Ann Winkelman and published by . This book was released on 2011 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: Milk protein is the most valuable milk component for which dairy producers receive payment. Despite its high value, altering milk protein composition and production in dairy cows by diet has been challenging, particularly as compared to altering milk fat. Improving the efficiency of conversion of dietary nitrogen into productive nitrogen (as milk protein) has both financial and environmental benefits to the dairy industry. Dietary strategies to improve milk protein yield have focused on amino acid requirements, metabolizable protein, and the interaction between dietary energy and protein. However, dietary interventions have had only moderate success in improving milk protein production in well-fed dairy cows. Use of long-term hyperinsulinemic-euglycemic clamps in lactating cows has suggested that milk protein synthesis in dairy cows is not maximized under normal management conditions, as significant improvements in milk protein have been observed in this experimental context. The goal of the present research was to expand on these observations by administering slow-release insulins, from human medicine, to lactating dairy cows. The hypothesis was that administration of slow-release insulins, without provision of supplemental glucose, would increase milk protein production and alter mammary metabolism in lactating dairy cows. In experiment one, two forms of slow-release insulin were tested in a dose response study. Both Humulin-N (H) and insulin glargine (L) exerted insulin-like effects in lactating dairy cows, evidenced by linear decreases of plasma glucose with increasing dose of slow-release insulin. In experiment two, H and L were given twice daily for 10 days to evaluate their effects on milk component production. Milk fat and protein content were both increased by treatment with H and L, suggesting that these forms of slow-release insulin alter metabolism and milk component synthesis. In experiment three, L was used in a mammary metabolism study to examine its effects on mammary uptake and utilization of substrates for protein synthesis. Reduced uptake of both essential and nonessential amino acids was observed during treatment with L, while milk protein yield remained the same for the control and treatment periods. This suggests that L alters metabolism and increases amino acid efficiency of use within the cow.
Download or read book Effect of Energy and Protein Levels on Milk Production During Late Lactation written by Vern Emery Erickson and published by . This book was released on 1971 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Milk Protein written by Narongsak Chaiyabutr and published by BoD – Books on Demand. This book was released on 2022-06-01 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Milk Protein - New Research Approaches discusses the biology and synthesis of milk protein at both the cellular and molecular levels. It also presents related information on animal nutrition and management, including animal breeding. It is a useful resource for students, researchers, and professionals in veterinary, dairy, food, and animal science, among others.
Download or read book Milk and Dairy Products in Human Nutrition written by Young W. Park and published by John Wiley & Sons. This book was released on 2013-04-09 with total page 1063 pages. Available in PDF, EPUB and Kindle. Book excerpt: Milk is nature’s most complete food, and dairy products are considered to be the most nutritious foods of all. The traditional view of the role of milk has been greatly expanded in recent years beyond the horizon of nutritional subsistence of infants: it is now recognized to be more than a source of nutrients for the healthy growth of children and nourishment of adult humans. Alongside its major proteins (casein and whey), milk contains biologically active compounds, which have important physiological and biochemical functions and significant impacts upon human metabolism, nutrition and health. Many of these compounds have been proven to have beneficial effects on human nutrition and health. This comprehensive reference is the first to address such a wide range of topics related to milk production and human health, including: mammary secretion, production, sanitation, quality standards and chemistry, as well as nutrition, milk allergies, lactose intolerance, and the bioactive and therapeutic compounds found in milk. In addition to cow’s milk, the book also covers the milk of non-bovine dairy species which is of economic importance around the world. The Editors have assembled a team of internationally renowned experts to contribute to this exhaustive volume which will be essential reading for dairy scientists, nutritionists, food scientists, allergy specialists and health professionals.
Download or read book Nutrition And Biochemistry of Milk Maintenance written by Bruce Larson and published by Elsevier. This book was released on 2012-12-02 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lactation: A Comprehensive Treatise, Volume III: Nutrition and Biochemistry of Milk/Maintenance focuses on the nutrition and biochemistry of milk and its constituents, including the nutritional aspects of milk as a food and nutritional maintenance of lactation in those species from which milk is utilized as a source of human food. This book is divided into two parts—biochemistry of milk and its nutritive quality and maintenance of lactation. In these parts, this volume specifically discusses the differences among species in milk composition; significance of polymorphism; pesticide residues in bovine milk; and transfer of radiostrontium into milk. The role of the mammary gland in the immune system; methodology of diagnosis of milk hypersensitivity; and metabolic defects in galactose metabolism are also elaborated. This text likewise covers the factors affecting nutritional requirements of lactating animals and shape of the lactation curve. This publication is useful to biologists, food technologists, and college students interested in lactation research.
Download or read book Milk Proteins written by C.A. Barth and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the state of knowledge and progress of research on food proteins, and in particular, milk proteins. Its basis is the Symposium on Milk Proteins that was held at the Federal Dairy Research Centre in Kiel, FRG, in June, 1988. Scien tists from around the world attended and addressed pure, as well as applied fields of protein research and technology. This book is divided into five sections, each adapted from the symposium's invited lectures, short communications, and poster presentations. New criteria for the "bio logical value" of dietary proteins and their relationships are considered according to: - Milk Proteins and Nitrogen Equilibrium - Milk Proteins and Ligands - Milk Proteins: Structural and Genetic Aspects - Milk Proteins: Technological and Functional Aspects - Milk Proteins and Clinical Nutrition Generally, different dietary proteins are classified according to their "biological value," i.e., their capacity to cause different retention of nitrogen in the body. But we think there are other intriguing leads worth studying that may help to identify which dietary proteins are best recommended for specific dietary situations or clini cal conditions. In addition, we have taken into consideration new fields such as attempts to determine the three-dimensional structure of proteins using two-dimensional NMR spectroscopy, and the application of genetic engineering to the lactating cell. In other words, we are on the way to the transgenic cow with customized milk constituents and composition.
Download or read book Responses in the Yield of Milk Constituents to the Intake of Nutrients by Dairy Cows written by Biotechnology and Biological Sciences Research Council (Great Britain). Technical Committee on Responses to Nutrients and published by Oxford University Press, USA. This book was released on 1998 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report reviews the energy and protein requirement systems for dairy cows currently used in Britain and presents a new approach, along with the outline of a model for its implementation. Current systems give little consideration to the responses of the animal to changes in the nutrient supply, or to interactions between dietary constituents in their effects on digestion and metabolism. Neither do they predict any effect on the partition of nutrient use between milk and body, or changes in the yields of milk fat, protein and lactose, which determine the commercial value of the milk. Therefore the systems, although not inaccurate, lack relevance to the current needs of UK milk producers. Models which embody concepts of nutrient supply and utilization are reviewed and their development as viable alternatives is considered. It is concluded that a new diet formulation system for dairy cows should aim to predict voluntary feed intake, the partition of nutrient use between milk production and tissue deposition, and the short and long-term of effects of nutrition on fat, protein and lactose yields. The physical and biological characteristics of the cow must also be recognized and incorporated into any model for response prediction. The report is also published in Nutrition Abstracts and Reviews - Series B: Livestock Feeds and Feeding. It is an authoritative review for advanced students, research workers and advisors in animal nutrition and in dairy science and technology.
Download or read book Optimizing Dietary Crude Protein Level for Maximal Bacterial Protein Synthesis and Milk Production in Dairy Cows written by Jose de Jesus Olmos Colmenero and published by . This book was released on 2004 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Dietary Protein Degradability and Undergradability on Milk Urea Nitrogen Milk NPN and Blood Urea Nitrogen in Lactating Dairy Cows written by Dwight Kenneth Roseler and published by . This book was released on 1990 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Dietary Protein on Growth of Young Calves and on Production Performance of Lactating Diary Cows written by Jean-Marie Vianney Akayezu and published by . This book was released on 1997 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synchronization of Energy and Protein Supply in the Rumen of Dairy Cows written by Teja Kaswari and published by Cuvillier Verlag. This book was released on 2004 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Regulation of Milk Protein Concentration and Yield in Dairy Cows written by Timothy Ronald Mackle and published by . This book was released on 1999 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
