Download or read book Nutritional and Economic Aspects of Feed Utilization by Dairy Cows written by C. R. Hoglund and published by . This book was released on 1959 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Nutrition and Lactation in the Dairy Cow written by Philip C. Garnsworthy and published by Elsevier. This book was released on 2013-10-22 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrition and Lactation in the Dairy Cow is the proceedings of the 46th University of Nottingham Easter School in Agricultural Science. Said symposium was concerned with the significant advances in the field of nutrition and lactation in the dairy cow. The book is divided in five parts. Part I deals with the principles behind nutrition and lactation of cows. Part II discusses the cow’s nutrient interactions; responses to nutrients that yield protein and energy; and the influence of nutrient balance and milk yields. Part III tackles the efficiency of energy utilization in cows and its relation to milk production. Part IV talks about food intake of cows and the factors that affect it, while Part V deals with the different feeding systems for cows. The text is recommended for those involved in raising cows and dairy production, especially those who would like to know more and make studies about the relationship of nutrition and lactation of cows.
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.
Download or read book Recent Advances in Animal Nutrition written by W. Haresign and published by Elsevier. This book was released on 2013-10-22 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent Advances in Animal Nutrition-1981 is a collection of papers that discusses the effects of dietary fat on milk composition, relating it to the biochemistry of fat synthesis in the mammary gland. The influence of concentrates on milk composition as well as the pattern and level of concentrate feeding on milk output are also covered. The book describes the need for better utilization of grass and grass products in dairy production, the mineral and trace element requirements of pigs; the importance of anion-cation balance in poultry diets and its effects on performance levels; and the selenium and cobalt requirements of ruminants. The problems of medicinal residues in animal products and the toxicological effects of aflatoxin residues in animal products are also considered. People involved in agriculture, dairy production and animal nutrition will find the book useful.
Download or read book Increasing Productivity and Profit Without Increasing Purchased Feed Costs written by Robert A. Milligan and published by . This book was released on 1983 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ruminants written by Muhammad Abubakar and published by BoD – Books on Demand. This book was released on 2018-04-25 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is very essential to understand the recent advances in ruminant science to recognize and control diseases and disorders in these animals. Our book, Ruminants - The Husbandry, Economic and Health Aspects, provides a concise introductory chapter and details about the main aspects of ruminants' science and production. This is the first edition of the book, so it covers the introductory level of topics, which are written specifically for veterinary students, classroom use, and practitioners who require more knowledge of dairy animal health and production. The book covers an introductory chapter and sections on husbandry and economics as well as animal health. Each book section comprises chapters from renowned experts from the area and gives readers a unique opportunity to explore the topic.
Download or read book Dairy Cattle Feeding and Nutrition written by W. J. Miller and published by Elsevier. This book was released on 2012-12-02 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dairy Cattle Feeding and Nutrition was designed to provide information needed by those interested in the feeding and nutrition of dairy cattle. It contains basic information for students in courses on feeds and feeding, dairy cattle production, and animal nutrition.
Download or read book The Effect of Genetic Variance on Nutritional Requirements of Animals written by National Research Council and published by National Academies Press. This book was released on 1975-02-01 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic variation in nutrition of cattle for meat production. Genetic variation in nutrition of dairy cattle. Genetic variation in nutritional requirements of poultry. Genetic variation in nutrition of sheep. Genetic variation in nutritional requirements of swine.
Download or read book A Survey of Agricultural Economics Literature written by Lee R. Martin and published by U of Minnesota Press. This book was released on 1977 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Farm Economics written by and published by . This book was released on 1959 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Feed Cost of Milk and Fat Production as Related to Yields written by H. A. Ross and published by . This book was released on 1923 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen and Phosphorus Nutrition of Cattle written by Alexander N. Hristov and published by CABI Publishing. This book was released on 2005 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interactions between Cattle and the Environment: a General Introduction; Nitrogen Requirements of Cattle; Nitrogen Metabolism in the RUlDen; Factors Affecting the Efficiency of Nitrogen Utilization in the RUlDen; Whole-anilnal Nitrogen Balance in Cattle Phosphorus Metabolism in the RUlDen; Phosphorus Metabolism in Rwninants and Requirements of Cattle; Etfects ofDietary Phosphorus and Nitrogen on Cattle Reproduction; lnproving the EfficielicY cifNutrient Use on Cattle Operations.
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 Effect of Feeding Corn Silage Based Diets Predicted to be Deficient in Either Ruminal Nitrogen Or Metabolizable Protein on Nitrogen Utilization and Efficiency of Use in Lactating Cows written by Erin Beth Recktenwald and published by . This book was released on 2007 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to concern over nitrogen (N) emissions, this study attempted to evaluate dietary approaches to reduce N excretion by dairy cattle. Knowledge about potential N sources that were either unaccounted for or under-predicted by CPM Dairy and the Dairy NRC (2001) was used to formulate rations that were much lower in crude protein (CP) than typically fed to dairy cattle but would potentially not decrease production. Specifically, the three diets fed were predicted to have: (1) positive rumen N and metabolizable protein (MP) balances (Diet P) (2) negative MP balance and positive rumen N balance (Diet N), or (3) negative rumen N balance but positive MP balance (Diet T) as predicted by CPM Dairy version 3. The objective of this experiment was to determine whether, and to what extent, the decrease in predicted ruminally available N and MP supply would affect milk production. Eighty-eight multiparous lactating Holstein cows (83 ± 20 DIM), were blocked by average daily milk yield to 50 DIM and parity and assigned to three diets differing in N content or predicted rumen degradability of the feed N. The diets were formulated with CPM Dairy V3 using library values for all feeds except corn silage where actual chemical, digestibility, and degradation rate values were determined and used. The diets (DM basis) consisted of approximately 50% corn silage, 2% wheat straw and 48% of a diet specific ingredient mix and were formulated for 22.2 of kg DMI. Actual diet CP levels were 16.7, 14.2 and 14.3% for Diets P, N and T, respectively. The predicted CPM Dairy rumen N balance at the formulated DMI was 29 and 27 g for Diets P and N and negative 39 g/d for Diet T, whereas the predicted MP balance was 263 and negative 145 and 91 g/d for Diets P, N and T, respectively. Monensin was included in the diets at a formulated intake of approximately 300 mg per cow per d and somatotropin was administered per label. Actual DMI for cattle fed these treatments were 25.7, 25.5 and 24.2 kg/d for Diets P, N and T, respectively and were significantly lower for Diet T. Actual milk yield was 45.0, 42.6 and 43.3 kg/d and 3.5% FCM was 38.1, 36.5, and 36.4 kg/d for cows fed Diets P, N and T, respectively and was significantly lower for cows fed Diets N and T. Milk protein percent was not affected by diet; however, milk protein yield was significantly greater for cows fed Diet P due to the difference in milk yield. Plasma urea N concentrations were 11.31, 8.40 and 7.13 mg/dl for cows fed diets P, N and T, respectively and were different and paralleled the rumen ammonia levels of 8.32, 6.58 and 5.84 mg/dl. Milk fat depression (MFD) was observed in all cows and was not affected by treatment, and the average milk fat levels were 2.67, 2.68 and 2.54% for diets P, N and T, respectively. To determine if monensin was partially responsible for the MFD, monensin was removed from the diets of approximately half of the cows on treatment once they had finished the experimental period. Removal of monensin resulted in a 30% increase in milk fat percent, and milk protein content was not affected. Calculated milk N:intake N ratios for the three treatments were 0.31, 0.33 and 0.36 for Diets P, N and T respectively. The results of this study suggest that more productive N is available than currently predicted by either CPM Dairy and the Dairy NRC (2001). Understanding where these differences exist would allow for feeding less CP to dairy cattle and decreasing N emissions to the environment. It may also be a profitable strategy for dairy farmers, as they would be able to reduce their purchase of costly protein feeds, but that was not demonstrated in this study - primarily due to the severe milk fat depression that decreased the economic value of milk. However, ration cost was not a concern for this experiment, and that aspect can be considered when implementing feeding strategies stemming from this research. (Abstract).
