OvertheCounter
    Twitter LinkedIn
    • Email Newsletters
    • Magazine Subscriptions
    • About Us
    • Advertise
    • Contact Us
    Twitter LinkedIn
    CPD Log-In
    OvertheCounter
    • News
      • Dairy / Beef
      • Sheep
      • Pigs / Poultry
      • Equine
      • Companion
      • Retail
      • Training
    • Magazines
      1. May 2026
      2. March 2026
      3. January 2026
      4. November 2025
      5. September 2025
      6. July 2025
      7. May 2025
      Featured

      Over the Counter – May 2026

      By Simon KingMay 18, 2026
      Recent

      Over the Counter – May 2026

      May 18, 2026

      Over the Counter – March 2026

      March 17, 2026

      Over the Counter – January 2026

      January 12, 2026
    • CPD Training
      • AMTRA CPD Modules
        • Frontline Academy
        • Companion Animal CPD Modules
        • Equine CPD modules
        • Livestock CPD Modules
        • Poultry CPD Modules
        • Are you a Gold Standard SQP?
      • VETPOL CPD Modules
        • Companion Animal CPD Modules
        • Equine CPD Modules
        • Livestock CPD Modules
        • Poultry CPD Modules
      • Earning CPD points with overthecounter.news
      • CPD Log-In
      • Wormstock 2023
    • National SQP Awards
    OvertheCounter
    Dairy / Beef

    Pre-calving trace element bolusing supports calf and cow health and performance

    mmBy Simon KingFebruary 17, 2023No Comments3 Mins Read
    LinkedIn Twitter Facebook Email

    Spring calving beef and dairy herds are approaching a critical period for trace element supplementation.

    Emily Hall, product manager for Nettex, said: “The majority of foetal development takes place in the six to eight weeks leading up to calving. A huge amount of nutritional stores are going to go towards foetal development, requiring supplementation during this period of essential trace elements and vitamins to support adequate growth, health and reproduction of both the dam and her calf.”

    With the addition of EnduraBol Pre-Calver and EnduraBol High Iodine to Nettex’s EnduraBol Cattle bolus range, cattle farmers have new options for their trace element supplementation programmes.

    EnduraBol Pre-Calver consists of two boluses that provide a sustained release of six trace elements and three vitamins for up to 120 days. Nutrients include high levels of copper, zinc, iodine, cobalt, selenium, manganese and vitamins A, D3 and E.

    “For dams, the balance of these nutrients will reduce calving issues, aid in quicker recovery after calving and support hormone production for better conception rates,” Ms Hall explained.

    “Unborn calves will optimise growth and development and have support in developing a healthy immune system.”

    For cattle on primarily forage diets, especially those consuming brassicas and legumes, EnduraBol High Iodine is recommended. Also consisting of two boluses, EnduraBol High Iodine contains high levels of copper, zinc, cobalt, selenium, manganese and vitamins A, D3 and E, and has an average daily supply of 17.60mg of iodine to overcome likely deficiencies.

    “Iodine is not stored within the body, therefore a continuous supply from the diet is required for normal production of the thyroid hormones, which control energy metabolism and metabolic rate. If deficient, calving can be delayed and slowed, calves can have poor vigour and the risk of still-births increases,” said Ms Hall.

    “Pastures and forages are often deficient in iodine, while brassicas and legumes contain compounds that block iodine absorption – therefore requiring a higher level of supplementation in some circumstances.”

    Long-term assurance with EnduraBol
    EnduraBol bolus technology features ‘single point erosion’ that ensures consistent and reliable delivery of trace elements and vitamins for extended periods. This slow and steady release allows the animal to optimise absorption while ensuring consistent trace element delivery over a long period, explained Ms Hall.

    “This is a much better option than drenching or relying on feed consumption for trace element delivery. Drenches provide a large pulse of nutrients in a short amount of time that won’t be fully absorbed and feeding has varying intakes which often result in deficiencies spotted throughout the herd,” she said.

    “However, a bolus ensures every animal gets a consistent amount of trace element supplementation.”

    EnduraBol boluses should be administered at least six weeks before calving using the EnduraBol gun. Each pack contains 20 boluses to supply 10 cows.

    Share. LinkedIn Facebook Twitter Email
    Previous ArticleForthglade prepares for exciting year of product launches
    Next Article SCOPS urges care with dose rates when using products containing closantel
    mm
    Simon King

    Editor - Over The Counter. Simon has more than 20 years’ experience in B2B publishing. When not slumped over his PC, Simon is a keen follower of sport, supporting Manchester United, and is at his absolute happiest watching most sport in glorious UHD, with something cold to drink by his side.

    Read Similar Stories

    Time to feed nutrients not numbers

    Elanco completes acquisition of AHV

    Feeding dry cows: The Goldilocks approach

    Most Read

    Farms hold key to break rodenticide resistance spread

    June 3, 2026

    New calculator helps optimise pig and broiler feed strategies

    June 2, 2026

    New environmental index launched to cut UK sheep flock carbon footprint

    June 1, 2026

    Any animal medicine advertising or promotion should conform to the ‘code of practice’ of the National Office of Animal Health (NOAH).
    For full details contact the publisher or www.noah.co.uk.

    Lewis Business Media Ltd endeavours to make articles and statements as accurate as possible.

    © 2026 Lewis Business Media. All Rights Reserved.
    Lewis Business Media, Suite A, Arun House, Office Village, River Way, Uckfield, TN22 1SL

    Privacy Policy | Cookie Policy | Terms & Conditions

    The OTC "tick" mechanism is the copyright of Lewis Business Media Ltd ©2025

    • Pet Business World
    • Pest

    Type above and press Enter to search. Press Esc to cancel.

    OvertheCounter
    Managing Your Privacy

    To provide the best digital experience, we use cookies to store and/or access device information. Consenting to our use of cookies allows us to process data such as reading behaviour. Not consenting or withdrawing consent, may adversely affect certain features and functions.

    Functional Always active
    The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
    Preferences
    The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
    Statistics
    The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
    Marketing
    The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
    • Manage options
    • Manage services
    • Manage {vendor_count} vendors
    • Read more about these purposes
    Cookie Preferences
    • {title}
    • {title}
    • {title}