Effect Of Diet On Site Of Digestion And Rumen Microbial Protein Synthesis In Dairy Cows
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Effect Of Diet On Site Of Digestion And Rumen Microbial Protein Synthesis In Dairy Cows
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Author : Lyle Mason Rode
language : en
Publisher:
Release Date : 1983
Effect Of Diet On Site Of Digestion And Rumen Microbial Protein Synthesis In Dairy Cows written by Lyle Mason Rode and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Microbial proteins categories.
Synchronization Of Energy And Protein Supply In The Rumen Of Dairy Cows
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Author : Teja Kaswari
language : en
Publisher: Cuvillier Verlag
Release Date : 2004
Synchronization Of Energy And Protein Supply In The Rumen Of Dairy Cows written by Teja Kaswari and has been published by Cuvillier Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Dairy cattle categories.
Digestive Physiology And Metabolism In Ruminants
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Author : Y. Ruckebusch
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Digestive Physiology And Metabolism In Ruminants written by Y. Ruckebusch and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Medical categories.
Two questions could not be avoided in the avant-propos of this book; (i) what is the importance to man of ruminant livestock, and (ii) what results of practical relevance in the growing mountain of scientific verbiage could be found in the Proceedings of this Symposium. Herbivores are an integral and critical part of the natural ecosystem which must be preserved because of their impact on human welfare. Wh at makes ruminants especially important to man is that they can thrive on fibrous forage and are thus the only viable enterprise over much of the earth's surface where crop growing is impracti cable. They contribute a wide array of products in addition to 50000 000 tonnes ofmeat (1977) and represent a 'capital reserve' that can be drawn upon in times of emergency: milk for example (450000000 tonnes) can make the difference between subsistence and starvation. About 60% of the world's meat and 80 % of the milk are produced by one third of the world ruminant population in the developed regions and as much as 99 % of the power for agriculture is provided by the ruminant population in developing countries. For the next two decades, a probable increase by 30 % for . cattle and buffalo and more than 40 % for sheep and goats is expected by improving health, fertility, nutrition and genetic potential rather than feed resources.
Principles Of Protein Nutrition Of Ruminants
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Author : J. Malcolm Asplund
language : en
Publisher: CRC Press
Release Date : 1994-03-14
Principles Of Protein Nutrition Of Ruminants written by J. Malcolm Asplund and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-03-14 with Nature categories.
Principles of Protein Nutrition of Ruminants is a cutting-edge examination of the current state of knowledge in this important field. It explores current techniques and concepts, pointing out limitations to these techniques and introducing ideas and criticisms that will be useful in developing new paradigms for research. The scope of the book covers the whole spectrum of investigation from grazing behavior of wild ruminants to cellular and molecular phenomena. Unique aspects of the book include its emphasis on the energy status of the animal as the primary factor in affecting amino acid supply and its discussion of the nature of nitrogenous compounds in feedstuffs.
Recent Developments In Ruminant Nutrition
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Author : W Haresign
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Recent Developments In Ruminant Nutrition written by W Haresign and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.
Recent Developments in Ruminant Nutrition presents papers that discuss the advancement of the different areas of ruminant nutrition. The book is comprised of 20 chapters that cover topics, such as reproduction, diet, and nutrition. The coverage of the text includes growth stimulation in ruminants; protein quantity and quality for the U.K. dairy cow; and complete-diet feeding of dairy cows. The book also covers rumen fermentation related topics, such as influence of nitrogen and carbohydrate inputs on rumen fermentation; aspects of the biochemistry of rumen fermentation and their implication in ruminant productivity; and manipulation of rumen fermentation. The text will be of great use to researchers and professionals in the animal husbandry industry.
Energy Nutrition In Ruminants
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Author : E.R. Orskov
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Energy Nutrition In Ruminants written by E.R. Orskov and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
This book is intended to be a companion volume to 'Protein Nutrition in Ruminants' (1982, Academic Press), which emphasized both the role of proteins and new systems for their evaluation. Here the focus is on energy-yielding nutrients and problems involved in evaluating them. Nonetheless in both volumes there is explicit recognition of the interdependence of energy and protein nutrition. I have not attempted to review comprehensively all the literature relating to ruminant energy nutrition and must apologize to colleagues whose work is not fully reported. Where possible tables and figures are taken from the studies of our group at the Rowett Research Institute since, if for no other reason, I am most familiar with these data. I have first considered the nutrition of the newborn and have stressed the role of behaviour 'in determining whether nutrients enter or bypass the rumen. The development of the rumen, the of anaerobic fermentation and the roles of various principles . species of rumen bacteria, protozoa and fungi in relation to different substrates, are summarized. This is followed by accounts of the factors affecting the utilization of different substrates and the v vi Preface absorption and metabolism of the end-products of fermentation and digestion, together with estimates of digestive capacity in various segments of the gut. The ruminant's requirements for energy-yielding nutrients is considered in relation to the per formance of various activities and to environmental conditions, particular attention being paid to the requirement for glucose precursors.
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
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Author : Erin Beth Recktenwald
language : en
Publisher:
Release Date : 2007
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 has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
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).
Protein Contribution Of Feedstuffs For Ruminants
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Author : E.L. Miller
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Protein Contribution Of Feedstuffs For Ruminants written by E.L. Miller and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.
Protein Contribution of Feedstuffs for Ruminants: Application to Feed Formulation covers papers about the findings and knowledge on the ""Evaluation of the Protein Contribution of Feedstuffs for Ruminant"". The book presents papers about the recent advances in the knowledge of protein evaluation for ruminants; similarities and differences between rumen fermentation and postruminal utilization; and methods of assessing proteins for ruminants. The text also covers papers about protected proteins and amino acids for ruminants; validation and application of principles of protein evaluation for ruminants; practical feeding trials in Norway; and protein-energy interrelationships for growing and for lactating cattle. A report of co-ordinated trials carried out on commercial farms in the UK is also presented in the book. The text will be invaluable to feed compounders, research workers, advisors, farmers and agricultural students.
Ruminant Nitrogen Usage
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 1985-01-01
Ruminant Nitrogen Usage written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985-01-01 with Technology & Engineering categories.
This book brings together the latest research on protein absorption by ruminants and takes a look at the calculation of optimum nutrient requirements, including bacterial digestion, in the calculations. It also describes the parameters of nitrogen conversion in the ruminant and examines the different kinds of protein found in animal feedstuffs. "Animal Feed Science and Technology" calls it "essential for all scientists and teachers actively working in ruminant nutrition research and instruction."
Gut Microbiome Modulation In Ruminants Enhancing Advantages And Minimizing Drawbacks
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Author : Alejandro Belanche
language : en
Publisher: Frontiers Media SA
Release Date : 2021-02-17
Gut Microbiome Modulation In Ruminants Enhancing Advantages And Minimizing Drawbacks written by Alejandro Belanche and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-17 with Science categories.