Farming
Wet winter raises grass tetany risk for Pembrokeshire flocks
Farmers urged to act as magnesium levels in grazing ewes fall
SHEEP farmers across Pembrokeshire are being warned of an increased risk of magnesium deficiency in lactating ewes this spring, following months of heavy winter rainfall.
The condition, known as grass tetany, can lead to reduced milk production and poor lamb performance if not addressed early.
Dr Alison Bond, Technical Services Manager at Rumenco, said wet conditions over the winter are likely to have depleted key minerals in grazing land.
She said: “Excessive rainfall can leach magnesium from soils, meaning levels in spring grass may be lower than usual. At the same time, fast-growing grass can dilute mineral content, increasing the risk of deficiency.”
Typical spring grazing may not provide enough magnesium to meet a ewe’s needs. A lactating ewe requires around 4g per day, but grass alone often supplies only half that amount.
Dr Bond warned that even before obvious symptoms appear, flocks may already be suffering hidden losses.
She said: “Reduced feed intake, lower milk yield, loss of condition and increased disease risk can all occur. By the time clinical signs are visible, the impact on productivity is already significant.”
Other seasonal factors, including late frosts and fertiliser use, can further limit magnesium uptake in grass.
Farmers are being advised to take preventative action by providing supplementary magnesium during high-risk periods.
Dr Bond said: “Routine supplementation is the most effective strategy. It helps prevent both sub-clinical losses and more serious cases of grass tetany.”
Magnesium can be provided through mineral blocks or buckets, which allow free access for grazing animals and require minimal labour.
With lambing season underway, farmers are being urged to monitor flocks closely and ensure nutritional needs are being met to protect both ewe health and lamb growth.
Business
Amended slurry lagoon plans approved after being moved due to mine workings
AMENDED plans for a rural mid Pembrokeshire slurry lagoon have been given the go-ahead after an initial scheme was altered due to the presence of mine workings.
In an application to Pembrokeshire Coast National Park, Owen Thomas, through agent Preseli Planning Ltd, sought permission for the excavation of an earth bank nutrient ‘slurry lagoon’ store of 60 by 48 metres near to New House Farm, some one kilometre from the village of Cresselly.
A supporting statement said: “The dairy farming operation at New House Farm covers approximately 290 hectares of mixed tenure land with the herd comprising of 250 milking cows, which have a yield of between 6-9 thousand litres per cow and associated youngstock.”
It added: “The current slurry storage arrangements at New House are insufficient based on the livestock numbers to accommodate a five-month slurry storage capacity. The purpose of the proposal is to increase the slurry and dirty water storage capacity for the farming enterprise to be compliant with the control of Agricultural Pollution (Wales) Regulations 2021 (CoAPR) requirements.
“It is not the applicant’s intention to increase stock levels at the holding. The existing slurry store on the farmstead following the deduction of rainfall and freeboard has a capacity of 1,178 cubic metres.”
It said the required capacity would be 5,481 cubic metres over a five-month period, leading to a current shortfall of 4,303 cubic metres, which the proposal would address.
It added: “A further environmental benefit bought by the development is the nutrient store would allow the spreading of nutrients during suitable weather conditions, rather than needing to be disposed of in unfavourable weather conditions.”
Local community council Jeffreyston raised no objections but noted concerns about its size, although recognising the development is required to meet legislation, requesting all appropriate mitigation measures would be explored and implemented.
The Coal Authority objected to the original proposed location, owing to the presence of a recorded mine shaft and associated zone of influence, leading to an amended scheme moving the store some 150 metres.
An officer report recommending approval for the amended scheme said: “The principle of the development is considered acceptable, given its direct functional relationship with the agricultural enterprise and the demonstrated operational need for additional storage capacity.
“The proposal would remain closely associated with the existing farm holding and would not result in the introduction of an unrelated use within the countryside.”
It added: “The proposal would improve slurry management arrangements at the holding and assist in reducing the risk of pollution incidents associated with insufficient storage capacity.”
The application was conditionally approved.
Farming
Check ewes at weaning to protect next season’s lamb crop
PEMBROKESHIRE sheep farmers are being urged to use weaning as a key opportunity to check ewe condition and deal with any problems before tupping.
With many local flocks now moving towards weaning, farmers are being advised to assess body condition score, as well as checking teeth, feet and udders, while there is still time to improve nutrition ahead of the breeding season.
Dr Alison Bond, Technical Services Manager at Rumenco, said close monitoring at this stage can help avoid major changes in ewe condition and improve overall flock productivity.
She said weaning at around 12 weeks was a good target, when lambs should usually be between 25kg and 30kg and taking very little milk from the ewe.

“There will of course be a focus on the lambs’ readiness for market at this stage, but it is equally important to put a hand across the ewes to assess their condition,” she said.
For lowland flocks, ewes with a body condition score below 2.5 at weaning should be given priority, as they may struggle to reach the target score of around 3.5 by tupping.
Those poorer condition ewes should be grouped separately, moved onto the best available grazing and given appropriate supplementary feeding where needed.
Dr Bond said waiting until closer to tupping could be less effective and may affect performance.
She added that ewes in good condition at tupping are more likely to scan with more lambs, produce healthier lambs after birth, and rear heavier lambs by eight weeks of age.
“It affects the whole production cycle, and not just one element,” she said.
The advice will be particularly relevant to farms across Pembrokeshire, Carmarthenshire and Ceredigion, where sheep remain a major part of the rural economy and where grass quality can vary sharply depending on weather, soil type and stocking pressure.
Dr Bond said the aim should be to keep ewes between body condition score 2.5 and 3.5 throughout the cycle, avoiding big dips and peaks.
Routine checks at weaning, she said, give farmers the best chance of correcting problems before the tups go in two to three months later.
Pic: Farmers are being urged to check ewe condition at weaning to protect flock performance ahead of tupping (Pic: Tim Scrivener/Agriphoto).
Farming
Reform calls for urgent review of farming scheme
LOW UPTAKE HAS RAISED FRESH QUESTIONS OVER THE FUTURE OF SUPPORT FOR WELSH FARMERS
REFORM WALES has called for an urgent review of the Sustainable Farming Scheme after figures showed only around half of eligible farmers have signed up.
The party said the lower-than-expected uptake showed that serious concerns remained within the farming community over the complexity of the scheme, compliance rules and uncertainty about how it will operate in the long term.
Laura Anne Jones MS, Reform Wales’ Shadow Cabinet Minister for Food, Farming and Rural Affairs, raised the issue during questions to the Welsh Government.
She said: “The figures released by the Welsh Government today confirm what many farmers have been saying for some time: the Sustainable Farming Scheme is too complex, too restrictive and too bureaucratic.
“Farmers need certainty and security, not endless paperwork and rigid requirements that fail to reflect the realities of farming in Wales.
“Reform Wales believes the scheme should be reviewed as a matter of urgency, with a greater focus on flexibility, common sense and practical outcomes.
“Welsh farmers deserve a scheme that works with them, not against them.”
The Sustainable Farming Scheme is due to replace previous systems of agricultural support in Wales and has been one of the most contentious issues facing the rural sector.
Farming unions and campaigners have repeatedly warned that any new system must be practical for family farms and must not add unnecessary red tape at a time when many businesses are already under pressure from rising costs, bovine TB and market uncertainty.
Reform Wales said the Welsh Government must now explain how it intends to respond to the level of take-up and whether changes will be made before the scheme is fully rolled out.
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