Investigations on the effects of niacin supplementation to different rations on rumen fermentation, duodenal nutrient flow and several serum and milk parameters of dairy cows PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Investigations on the effects of niacin supplementation to different rations on rumen fermentation, duodenal nutrient flow and several serum and milk parameters of dairy cows PDF full book. Access full book title Investigations on the effects of niacin supplementation to different rations on rumen fermentation, duodenal nutrient flow and several serum and milk parameters of dairy cows by Inka-Donata Niehoff. Download full books in PDF and EPUB format.
Author: Inka-Donata Niehoff
Publisher: Cuvillier Verlag
ISBN: 3736931352
Category : Science
Languages : en
Pages : 146
Get Book Here
Book Description
Due to the incorporation of niacin into the coenzymes NAD and NADP, niacin is of great importance for the metabolism of man and animals. Apart from niacin in feed and endogenous formation, microbial niacin synthesis in the rumen is an important source for dairy cows. But the amount synthesized seems to differ greatly, which might be influenced by the ration fed. Many studies revealed a positive impact of a niacin supplementation on rumen protozoa, but microbial protein synthesis or volatile fatty acid production in the rumen showed inconsistent reactions to supplemental niacin. The amount of niacin reaching the duodenum is usually higher when niacin is fed. But not the whole quantity supplemented reaches the duodenum, indicating degradation or absorption before the duodenal cannula. Furthermore, supplementation of niacin did not always lead to a higher niacin concentration in blood. Effects on other blood parameters have been inconsistent, but might be more obvious when cows are in a tense metabolic situation, for example, ketosis or if high amounts are infused post-ruminally, since ruminal degradation appears to be substantial. The same is valid for milk parameters. In the few studies where blood niacin and milk parameters have been investigated, enhanced niacin concentrations in blood did not necessarily affect milk production or composition. These results are discussed in the present review, gaps of knowledge of niacin’s mode of action on the metabolism of dairy cows are identified and directions for future research are suggested.
Author: Inka-Donata Niehoff
Publisher:
ISBN: 9783869551357
Category :
Languages : en
Pages : 135
Get Book Here
Book Description
Author: Veronika Ragaller
Publisher:
ISBN:
Category :
Languages : en
Pages : 122
Get Book Here
Book Description
Author: Jimmy Lynn Horner
Publisher:
ISBN:
Category : Dairy cattle
Languages : en
Pages : 212
Get Book Here
Book Description
Author: Charles Karuku Gachuiri
Publisher:
ISBN:
Category :
Languages : en
Pages : 464
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1420
Get Book Here
Book Description
Author: National Research Council
Publisher: National Academies
ISBN: 0309049970
Category : Technology & Engineering
Languages : en
Pages : 94
Get Book Here
Book Description
In the past decade, animal scientists have learned that administering recombinantly derived somatotropin (growth hormone) to cows improves milk production and that giving beta-adrenergic agonists to meat animals improves productivity and leanness. In order for these metabolic modifiers to yield benefits, however, sound management of the animals' nutrition is necessary. This volume reports on how these substances work in the animals' metabolism, what effects they might have on nutrient requirements of domestic livestock, and what information should be developed further by investigators. The book explores the current understanding of the biology, structure, mechanisms of action, and treatment effects of somatotropin, beta-adrenergic agonists, and anabolic steroids. A companion volume to the Nutrient Requirements of Domestic Animals series, this authoritative volume will be required reading for animal scientists, researchers, veterinarians, livestock farmers, and faculty and students in university animal veterinary science programs.
Author: Jean Guy LeBlanc
Publisher: BoD – Books on Demand
ISBN: 1789239893
Category : Science
Languages : en
Pages : 156
Get Book Here
Book Description
B-group vitamins are involved in numerous metabolic reactions and their widespread deficiency can cause a large series of health problems. The aim of this book is to provide an update on the current use and perspectives of B-group vitamins. Novel methods to detect folates in pregnant women, the use and role of folate dentistry, the use of genotype notification to modify food intake behavior, thiamin metabolism in Archaea and its role in plants and in crop improvement, the use of riboflavin in blood safety and niacin in metabolic stress and resistance in dairy cows are some of the subjects that are described in this multitopic book written by authors from seven different countries.
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 822
Get Book Here
Book Description
Author: Pierre J. Gerber
Publisher: Food & Agriculture Organization of the UN (FAO)
ISBN:
Category : Nature
Languages : en
Pages : 240
Get Book Here
Book Description
The current analysis was conducted to evaluate the potential of nutritional, manure and animal husbandry practices for mitigating methane (CH4) and nitrous oxide (N2O) - i.e. non-carbon dioxide (CO2) - GHG emissions from livestock production. These practices were categorized into enteric CH4, manure management and animal husbandry mitigation practices. Emphasis was placed on enteric CH4 mitigation practices for ruminant animals (only in vivo studies were considered) and manure mitigation practices for both ruminant and monogastric species. Over 900 references were reviewed; simulation and life cycle assessment analyses were generally excluded
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309069971
Category : Technology & Engineering
Languages : en
Pages : 406
Get Book Here
Book Description
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.
