Increasing awareness of the costs associated with worm control and concerns relating to wormer resistance have increased interest in breeding sheep with greater immunity to roundworms.
The degree to which sheep are affected by the presence of roundworms in their gut is quite variable; with some individuals affected much worse than others. This variation has a genetic component, which if it can be assessed, can be used to select animals that are genetically more resistant to roundworm infection.
Selecting rams within a closed flock with highly negative FEC EBVs means their progeny have the potential to:
Breeding for worm resistance provides both a useful way to improve flock performance and a valuable marketing tool for selling rams.
Subsidy is available from each of the devolved bodies, EBLEX, HCC and QMS to support the recording of FEC and enhance its availability to pedigree breeders.
Worm resistance can be assessed by analysing an the Faecal Egg Count (FEC) of lambs at around 21 weeks of age. Breeders send faecal samples to a laboratory, who send FEC scores to Signet for analysis to produce a FEC EBV – indicating resistance to worms.
Remember - before sampling: -
Take a mob sample.
Take meaningful measurements
Numbers to sample
Innovis are not providing a service in 2012. A service is available through SAC Veterinary Services, Mill of Craibstone, Aberdeen, AB21 9TB Tel: 01224 711177
Signet understand that SAC Veterinary Services will be charging approximately £6.00 per sample (plus VAT); with some additional costs arising relating to the provision and postage of sampling kits.
Levy body subsidy: EBLEX & HCC = £2.50 / sample QMS = £2.00 / sample
Signet members must claim the subsidy direct from their levy body by submitting a copy of the SAC invoice.
For more information contact: -
SAC Veterinary Services, Mill of Craibstone, Aberdeen, AB21 9TB
Tel: 01224 711177 Email: firstname.lastname@example.org