Copper : Importance of Copper for Fertility and Health By Jackie Nix

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    Importance of Copper for Fertility and Health
    By Jackie Nix
    Copper Deficiency a Common Problem
    Marginal to severe copper deficiency in goats is widespread across the United States. Typical deficiency
    symptoms include: rough, discolored hair coats (faded color around the eyes, red tinge on black hair,
    etc.); winter coats that are slow to shed; decreased conception rates; increased days open; hoof
    problems; depressed immunity; anemia; reduced growth rate and, in some cases, diarrhea. Copper
    deficiency in goats is brought on by a combination of factors including: low soil copper levels, high soil
    concentrations of antagonistic minerals and plant effects.
    Forage surveys conducted across the United States overwhelmingly reveal forage samples that are
    marginally to severely deficient in copper. Additionally, a high number of samples contain levels of
    antagonistic minerals (sulfur, molybdomen and iron) high enough to induce copper deficiency. These
    antagonistic minerals bind with copper making it unavailable for use by the goats. Excessively high
    levels of these minerals will increase copper requirements in goats. In other words, when these
    antagonistic minerals are excessive goats will need more copper in order to meet their nutritional needs.
    Copper levels in forages are not only dependent on mineral levels in soils but also the forage type and
    maturity. Grasses tend to be lower in copper than legumes grown under the same conditions. Also,
    copper concentrations are higher in leaves compared to stems. Therefore, as a plant becomes more
    mature (stemmy) it’s value as a copper source decreases. For all of the above reasons, it is important to
    provide supplemental copper to goats.
    Why is Copper so Important?
    Copper is needed by a variety of key systems in the body. Numerous enzymes necessary for
    reproduction, immunity and growth need copper. In addition, copper is necessary for proper metabolism
    of iron, maintenance of connective tissue, pigmentation of skin and hair, maturation of hoof tissue, and
    many other functions.
    Copper and Immunity
    Proper copper nutrition is essential for a healthy immune system in goats. Copper is needed for proper
    development of antibodies and white blood cells in addition to antioxidant enzyme production. Copper
    deficient goats are more susceptible to infections and do not respond as well to vaccinations. In addition,
    they tend to be less resistant to parasitic challenge. Goats receiving proper copper nutrition tend to be
    less susceptible to infections and have less severe infections when disease does occur.
    Copper and Reproduction
    It is widely known that copper deficiency results in reduced reproductive efficiency and performance. It
    is theorized that low copper levels alter enzyme systems involved in reproduction. Typical copper
    deficiency symptoms include decreased conception rates, increased days open and delayed puberty and
    decreased libido and semen quality in bucks.
    Proper copper nutrition in pregnant females is critical to the health of newborn kids. Newborns are very
    dependent on copper acquired during the prenatal period since milk is a poor source of copper. Kids
    have a high copper demand during the first few months of life. Additionally, copper status in the dam is
    critical to the production of high quality colostrum. Colostrum provides passive immunity for the kids
    until their own immune systems develop fully. Also, copper nutrition has been shown to be an important
    component in a newborn’s ability to withstand cold stress. Kids born to copper deficient dams
    experience increased death losses, reduced growth, reduced immunity and poor production efficiency.
    Copper and Stress
    Stress increases an animal’s mineral needs and tends to exacerbate existing mineral deficiencies. This is
    especially important during weaning. Studies have shown that copper deficient calves have more health
    problems, gain weight less efficiently and have lower net returns. These same principles apply to goats.
    Therefore, it is vital that goats receive adequate mineral nutrition BEFORE weaning because even a
    proper mineral program cannot overcome existing mineral deficiencies once stress sets in. Market kids
    will perform better when they have received adequate copper nutrition prior to weaning.
    How Can I Provide Enough Copper for My Goats?
    The key in providing adequate copper is to provide YEAR-ROUND access to a free choice mineral
    supplement that contains sufficient copper. The amount that is sufficient will vary according to current
    mineral status of your goats, soil mineral levels, season, etc. Do not skimp on mineral supplementation
    during spring and summer months when forage quality is good. Remember that most soils are deficient
    in copper so the forages grown on those soils will be deficient too. Keep track of mineral consumption.
    Supplements do your goats no good if they are not consumed at recommended levels. It is also important
    to eliminate use of yellow sulfur salt blocks. These sulfur blocks can artificially increase sulfur levels to
    the point of inducing copper deficiency in your goats.
    Sweetlix offers a complete meat goat mineral called the 16:8 Meat Maker? Mineral, a comlete dairy
    goat mineral called Caprine Magnum-Milk and a protein block called the 20% All Natural Goat
    Block. These supplements provide recommended levels of copper supplementation. Sweetlix
    supplement products for goats help goats attain maximum performance by providing complete vitamin
    and trace mineral supplementation designed especially for the nutritional needs of goats. All of these
    products will deliver 100% of the daily trace mineral needs of goats, including copper, selenium and
    zinc when fed according to label directions. Ask for Sweetlix by name at you local Sweetlix dealer or
    call 1-800-325-1486 to learn more about Sweetlix supplement products for goats.
    Jackie Nix is a nutritionist with Sweetlix (http://www.sweetlix.com). You can contact her at jnix@sweetlix.com or 1-800-325-
    1486 for questions or to learn more about the Sweetlix line of mineral and protein supplements for goats, cattle, horses,
    sheep and wildlife.
    December 2002