Agrimin Rumbul Rumen Bullet Sheep and Calf 20 pack

Rumbul Rumen Bullet Sheep and Calf 20 pack

£37.40 ex VAT£44.88 inc VAT


You will be required to complete a POM-VPS/NFA-VPS form for this product at checkout to enable completion of your order.

in stock In stock

Bulk discounts available:
3+ @ £36.00 each



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Product Description

A sustained release bolus containing an alloy of magnesium, copper and aluminium.

Licenced to aid the prevention of hypomagnesaemia in sheep and calves grazing rapidly growing spring grass.

Helps manage the magnesium status of their flock or herd over high risk periods.

This product is suitable for:
• Sheep over 30 kg AND
• Calves over 50 kg

Always use the approved Agrimin applicator:

Dosage & Administration


  • One Rumbul Rumen Bullet (15g) should be given to each animal two days before the expected period of risk, e.g. after lambing or transfer to new grazing.
  • If necessary, dosage should be repeated after three weeks.
  • Only to be given to sheep of at least 30 kg bodyweight.


  • Two Rumbul Rumen Bullets (15g) should be given to each animal.
  • One treatment should prevent a serious reduction in blood magnesium concentration for at least three weeks;
  • thereafter, dosage should be repeated if the calf is still receiving a predominantly milk diet.
  • Only to be given to calves of at least 50 kg bodyweight.

Administer orally by using the specially designed bulleting gun.

For cattle and calves only - a second bullet should then be administered following the same procedure.

Observe each animal for a short time after dosing to ensure the bullet(s) has (have) been swallowed.


Zero days


Data Sheet

To know more about this product please click on the link below...

Rumbul Rumen Bullet (Sheep/Calves)


Delivery & Returns




Non-refrigerated items

By 6pm


Refrigerated items

By 12am

£100 +



Delivery to United Kingdom only

Please note there is a small excess of £7.50 for dispatch to Highlands and Islands and Isle of Wight and £12 to Guernsey and Jersey as governed by your postcode.

  1. We are unable to ship to Northern Ireland. Any orders placed online will be cancelled and refunded.
  2. Orders are typically dispatched the day after they are received. For example, orders placed on Monday, will be dispatched on Tuesday. Orders received on Friday will not be dispatched until Monday subject to stock availability.
  3. Orders placed on a Thursday or Friday that have refrigerated items included will be dispatched on Sunday for delivery before 12pm on the following Monday to ensure that the items are delivered to you under controlled conditions. 
  4. We do not offer a Saturday or Sunday delivery service.
  5. Standard and Priority costs apply to the UK mainland only. Highlands and Islands and Isle of Wight may incur an excess to cover additional carriage costs as governed by your postcode. Full details can be found by clicking the link below.
  6. Standard Delivery (non-refrigerated products) guarantees delivery by 6pm
  7. Priority Delivery (refrigerated products) guarantees delivery by 12pm.
  8. We are unable to dispatch refridgerated products to Highlands and Islands addresses. Full details can be found by clicking the link below. 

For full delivery details click here 

Faulty Goods Returns

In the unlikely event that you receive faulty or damaged goods please call 01306 628215 within 72 hours of receipt of your goods. Please have your order reference to hand. You will be asked to provide evidence of the damaged goods if damaged in transit.

Restricted Goods Returns

We are unable to offer refunds on the following products.

  • Animal medicines - general & vaccines
  • Refrigerated/temperature sensitive products

Please contact the Farmacy Team before sending any returns on 01306 628215.

For full returns details click here

Product Species

  • Cattle - Dairy
    Cattle - Dairy
  • Cattle - Beef
    Cattle - Beef
  • Sheep
Home Delivery

UK mainland delivery from £12.00

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