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Bimeda UK - Items filtered by date: March 2017

There are many factors that contribute to ewe performance. One of these factors can present itself in the form of a trace element deficiency. This type of deficiency can have a serious impact on ewe fertility and overall health. One farmer that found herself with the dilemma was Jemma McHugh.

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Malcom and Andrew McLean operate Relough Holsteins – a top pedigree herd in Northern Ireland. They have 290 cows in their award-winning herd with a milk yield of 10,000. Annually, they sell their prize-winning bulls and heifers.

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Multiple complex factors can contribute to the health and fertility of sheep and one of these factors can be the animal’s trace element levels. Too much of certain trace elements can prove toxic, while too little can lead to issues such as impaired reproductive health, poor growth rates and poor general health. The latter was a problem for Mr Gordon Crawford; a farmer from Ballymena, County Antrim. Along with his sons, Ben and Jack, Mr Crawford breeds pedigree Scottish Lanark Blackface sheep. Their flock consists of 95 ewes plus replacements. As a pedigree flock, about 30 sheep are artificially inseminated each year.

We caught up with Mr Crawford to hear about his flocks trace element problems and how he set about addressing them.

‘Three years ago, our sheep were not reaching their full potential and I felt they could be doing much better. My vet began investigating and it transpired that the sheep had deficiencies in cobalt, selenium, copper and iodine. He recommended CoseIcure sheep boluses as they supply these four trace elements continuously for up to eight months.

We also felt the lambs could do better so we began investigating if we could improve them further. Investigations again showed that trace element deficiencies were the culprit. This time the vet recommended the Cosecure Lamb boluses. They last for up to six months and provide the same amounts of trace elements every day at levels that are compatible with what the lambs need.

Since we starting using the CoseIcure sheep boluses and Cosecure Lamb boluses things have really turned around. The flock has achieved great results in the breeding shed and the lambs have thrived. The only change we made on the farm was using the boluses, and I’d recommend that any farmer who thinks his animals are suffering from trace element issues, asks his vet or animal health advisor about them’.

Any form of trace element supplementation should only be given where a need to do so has been established, and on the advice of a veterinarian, nutritionist or animal health advisor. Copper-containing boluses are not suitable for some breeds of sheep or for housed sheep, and their use can lead to copper toxicity and death. If in doubt, speak to your veterinarian. 

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At this time of year it’s usual for farmers to start thinking about the measures they have in place to support the ongoing health and productivity of animals, and an assessment of your herds’ nutritional status is an important activity to undertake. Where a need for trace element supplementation is identified by your veterinarian, animal health advisor or nutritionist, they will be able to recommend the best course of action for your farm’s needs.

In the case of farmer Frankie Owens, a farmer from Brackey, Sixmilecross in County Tyrone, his veterinarian advised that he use CoseIcure Cattle boluses and he has been extremely pleased with the results.  

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Whether your main enterprise is beef or dairy, it is a well-documented fact that ensuring the optimum trace element status in your herd is critical to optimise productivity and to promote fertility.

Where some farmers struggle is in differentiating between the plethora of nutritional products available; from free access systems such as licks and blocks, to injections, feed supplements and boluses.

To shed some light on the issue, Bimeda Professional Services Veterinarian, Rachel Mallet, here talks about some of the key trace element deficiencies in cattle, and the options to address these.

From speaking to farmers around the UK, and from looking at the results of market research we have conducted, I know that some farmers would like more information about what form of trace element supplementation is best for their herd. With ever-increasing pressure on the milk price, as well as squeezed profits in every farming sector, it is absolutely critical that farmers are selecting products that they can trust to provide a consistent level of trace elements to their cattle. While the importance of ensuring optimum trace element levels is widely understood, I find that many farmers are unaware that peaks and troughs of supplementation can have a negative impact on fertility, so products than cannot guarantee consistency should be avoided. Where it has been identified that trace element supplement is required, it is vital that farmers choose a supplementation method that can be relied on to provide the same levels of trace elements every single day. Let’s take a look at the options available.

Oral Drenches
Drenches can seem like a cheap and convenient option. However, for trace elements which cannot be stored in the body, such as cobalt or iodine, they are not appropriate to treat deficiencies, as a form of continuous supplementation must be provided.

For example, the body has no capacity to store cobalt. This means that if you provide cobalt via a drench, any cobalt that the body cannot use will simply be passed out in the faeces, making the drench a false economy for the farmer. Frequent dosing is required, which increases costs to the farmer, both in terms of the drench itself and labour required.

Free Access Systems, Such as Licks and Blocks
Where a need to supplement trace elements has been established, we need to ensure that all animals receive an amount of trace elements which is compatible with their daily requirements. Too much of a trace element can prove toxic; too little and the deficiency will not be addressed. Furthermore, variable intakes can have a negative impact on fertility.

Unfortunately, the free access lick and block systems cannot that ensure each animal receives the same level of trace elements. In fact, an independent study highlighted that intakes between animals are extremely variable, with some consuming nothing and others consuming excessive quantities.1

Injections can be suitable for targeted administration in conjunction with the advice of your vet. They can be appropriate where only a single trace element, such as copper or selenium is required.

Pasture Dressing and Water Supplementation
Like blocks and licks, these forms of supplementation suffer from variable intakes. This is problematic as some cattle may consume trace elements in excess while some may not consume enough.

In Feed Supplementation
Trace elements can be provided by the provision of TMR, concentrates or bag minerals.
Often these are specified based on ‘averages’ or ‘common requirements’ as opposed to being based on what has been determined is deficient and required on farm. Ideally these mixes should be prepared based on an investigation in to the animals’ trace element status and requirements. This method can add significantly to the cost of production.

Trace Element Boluses
Boluses provide an convenient, cost-effective and controlled method of trace element supplementation.

A good quality bolus will provide the same amount of trace elements every single day for the duration of the bolus.

Bimeda soluble glass cattle boluses provide exactly the same amount of trace elements every single day for up to 6 months. This means there are no variable intakes and no guesswork for the farmer. This is particularly important for animals requiring cobalt and iodine which cannot be stored in the body and therefore a daily supply is required.

Their long-lasting nature is also highly convenient and reduces labour costs as repeated treatments are not required during the life of the bolus. As the same amount of trace elements are supplied every day, there are no peaks and troughs of supplementation, which could impact negatively on fertility. As the boluses last for us to 6 months, I advise supplying the boluses twice a year, where a need for supplementation has been established.

Bimed offers the Coseicure Cattle bolus which supplies rumen-available copper, cobalt, selenium and iodine.

It is also vital to remember that trace elements should only ever be supplied where a need for supplementation has been established. For further advice on trace element nutrition, consult with your vet or SQP.

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Bimeda can be contacted at: Bimeda, Unit 2, Bryn Cefni Industrial Park, Llangefni, Anglesey,
LL777XA. Tel 01248 725 400. Or see https://www.cosecureboluses.com


1. McDowell, 1992

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