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  1. MSD Veterinary Manual
    https://www.msdvetmanual.com/management-and-nutrition/nutrition-dairy-cattle/...

    Nutritional Requirements of Dairy Cattle - MSD Veterinary Manual

    • Calcium requirements of lactating dairy cows are high relative to other species or to nonlactating cows because of the high calcium concentration in milk. Thus, inorganic sources of calcium, such as calcium carbon… 展开

    Prevention

    Two approaches are taken with respect to the calcium supply for dry cows, each with the objective of preventing milk fever, or parturient paresis (see Parturient Paresis in Cows). One appr… 展开

    MSD Veterinary Manual
    Function

    Phosphorus nutrition for lactating dairy cows has dynamics similar to those of calcium. The efficiency of phosphorus absorption is affected by physiologic state and dietary sour… 展开

    MSD Veterinary Manual
    Safety

    Judiciously balancing diets to meet, but not exceed, phosphorus requirements is important for dairy cow performance and environmental stewardship. Excess phosphorus excr… 展开

    MSD Veterinary Manual
    Significance

    The dietary calcium:phosphorus ratio is not of particular importance in ruminants. Ratios from 7:1 to 1:1 are acceptable, so long as the total amount of each element meets the dietar… 展开

    MSD Veterinary Manual
    Do dairy cows have high nutritional requirements during lactation?
    During lactation, dairy cows have very high nutritional requirements relative to most other species ( see Table: Feeding Guidelines for Large-Breed Dairy Cattle). Meeting these requirements, especially for energy and protein, relative to intake capacity is challenging.
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    Prevention
    Function
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    Significance
    Do dairy cows have high nutritional requirements during lactation?
     
  1. Penn State Extension
    https://extension.psu.edu/.../nutrition-…

    Dairy Cattle Nutrition and Feeding | Penn State Extension

    Find information on dairy cattle nutrition and feeding. Resources on dairy cow rations, feed management, supplements, feeding, and weaning calves.

  2. Penn State Extension
    https://extension.psu.edu/review-of-nutrient...

    Review of Nutrient Requirements of Dairy Cattle: Requirements for …

  3. Cornell University College of Veterinary Medicine
    https://www.vet.cornell.edu/animal-health...

    Basic Nutrition for Dairy Cattle | Cornell University College of ...

  4. National Center for Biotechnology Information
    https://www.ncbi.nlm.nih.gov/books/NBK600587

    Nutrient Requirement Tables - Nutrient Requirements of Dairy …

  6. National Center for Biotechnology Information
    https://www.ncbi.nlm.nih.gov/books/NBK600603

    Nutrient Requirements of Dairy Cattle - NCBI Bookshelf

  7. Holstein Foundation
    http://www.holsteinfoundation.org/pdf_doc/workbooks/Dairy...
    [PDF]

    World of Dairy Cattle Nutrition - Holstein Foundation

  8. 其他用户还问了以下问题
    What is dairy cattle nutrition & ingredient composition?
    This book represents a comprehensive review of the most recent information available on efficient, profitable, and environmentally conscious dairy cattle nutrition and ingredient composition. 1. Defining Requirements 2. Dry Matter Intake 3. Energy 4. Fat 5. Carbohydrates 6. Protein 7. Minerals 8. Vitamins 9. Water 10.

    Nutrient Requirements of Dairy Cattle - NCBI Bookshelf

    ncbi.nlm.nih.gov
    What nutrient requirements do dairy cows need?
    Selected nutrient requirements of dairy cows as determined using sample diets 1 Nutrients Water The importance of access to clean fresh water for animals of all ages cannot be overemphasized. Vital metabolic reactions occur within the “universal solvent”, water.

    Nutritional Management of Dairy Cows - Center for Agriculture, Food

    ag.umass.edu
    Do dairy cows have high nutritional requirements during lactation?
    During lactation, dairy cows have very high nutritional requirements relative to most other species ( see Table: Feeding Guidelines for Large-Breed Dairy Cattle). Meeting these requirements, especially for energy and protein, relative to intake capacity is challenging.

    Nutritional Requirements of Dairy Cattle - MSD Veterinary Manual

    msdvetmanual.com
    How does a dairy cow need energy?
    The requirement for energy is satisfied by a combination of forages, concentrates, and a limited amount of supplemental fat. Dairy cattle have a specific requirement for forages, which are fermented by rumen bacteria to volatile fatty acids (VFAs). These VFAs supply a majority of the required energy to support maintenance, growth, and lactation.

    Nutritional Management of Dairy Cows - Center for Agriculture, Food

    ag.umass.edu
    What are the nutrient concentrations of feedstuffs commonly fed to dairy cows?
    The table Dry Matter, Energy, Crude Protein, Fiber, and Nonfiber Carbohydrate Concentrations of Some Feedstuffs Commonly Fed to Dairy Cattle has typical values for ME, NEL, NEM, and NEG, for some feedstuffs commonly fed to dairy cows. Values for ME and NE cannot be measured directly by typical laboratory analyses.

    Nutritional Requirements of Dairy Cattle - MSD Veterinary Manual

    msdvetmanual.com
    Do dairy cows need a nutritionist?
    As you have already learned, a dairy cow’s nutritional needs vary tremendously through her lifetime. This is where the assistance of a professional dairy nutritionist will prove helpful. At peak milk production, a cow may need 3 to 10 times as much protein and energy as she did during late gestation.

    World of Dairy Cattle Nutrition - Holstein Foundation

    holsteinfoundation.org
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  9. umass.edu
    https://ag.umass.edu/crops-dairy-livestock-equine/...

    Nutritional Management of Dairy Cows - Center for Agriculture, …

  10. MSD Veterinary Manual
    https://www.msdvetmanual.com/management-and...

    Feeding and Nutritional Management of Dairy Cattle

  11. PubMed
    https://pubmed.ncbi.nlm.nih.gov/38386771

    Nutrient Requirements of Dairy Cattle: Eighth Revised Edition