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Worms in the lambs can reduce the daily live weight gain which can effect the efficiency of the business.

worms can cause poor protein metabolism reduces muscle growth and carcase quality.

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Worms can cause permanent damage to the gut, which will reduce nutrient absorption throughout the animals life

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Better ewe fertility means more lambs born and reared, increasing farm output and profit.

Fewer barren ewes and healthier lambs help cut waste and keep costs down.

Good fertility supports strong, healthy ewes and better overall flock welfare.

Hitting fertility targets helps farms meet key goals like higher lambing rates and lower losses.

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indicates health/welfare and efficiency of the flock. 0-25% is performing well

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clean lambing pens, good supervision

ensure colostrum within 6 hours

vaccinate and cull poor ewes

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Lactation rate

Maternal behaviour

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A feed budget can be used to take into

consideration changes in lamb numbers

and weight to estimate how much feed is

required. This can be used to allocate

crops to certain groups or to help make

decisions about whether to keep lambs

to finish or sell as stores.

Growing lambs generally eat around 4%

of their body weight as dry matter (DM)

per day. For example, a 30 kg lamb that

is growing well on high-quality forage will

eat around 1.2 kg DM per day. See Table 5

for guidance.

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Use faecal egg counts (FECs) to decide when to drench; avoid routine blanket dosing.

Rotate grazing and maintain refugia to slow resistance.

Quarantine and treat new or returning stock.

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Record KPIs annually: scanning %, rearing %, lamb losses, ADG, ewe BCS.

Compare to AHDB benchmarks and set realistic year-on-year improvement goals.

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Target scanning %: 180–200% (lowland), 150–170% (upland).

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the consistent BCS effects the KPI of the ewes as over fat or under reduces productivity

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Soil Testing: Check pH, P, K, and Mg every 3–5 years to guide fertiliser use.

Reseeding: Replace underperforming swards; include clover for protein and nitrogen fixing.

Grazing Management: Rotate grazing and avoid overgrazing to maintain high-quality leaf growth.

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Worms significantly affect live weight gain, and so grazing management can be used to reduce dependence on wormers but requires significant planning. Parasite burdens can be reduced by grazing with other classes of stock, e.g. grazing a field with sheep one year and cattle the next, using the fields for conservation for some or all of the year, or grazing new reseeds after a forage or arable crop.

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Sheep riding a pig with flamethrower fighting big worm

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sheep fighting a man with a t shirt saying garry gampbell

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sheep fighting cartoon scary breathing fire