Garth Pig Stockmanship Standards

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Preventing medicine feed residues

Section: Stockmanship Standards

Preventing medicine feed residues

These guidelines are not exhaustive and are for guidance purpose only.

Preventing medicine feed residues
1 All prescription only medicines should be prescribed by your Veterinary Surgeon.
2 Only use medicine concentrations and combinations as recommended by your Veterinary Surgeon.
3 Maintain a good record system to keep track of medicated feed usage. Medicated feed usage must be recorded in the medicine book.
4 Purchase feed from reputable feed agencies who maintain adequate measures to eliminate in-feed medicine cross-contamination.
5 Clean out or flush - feed bins; conveyors and feeding equipment to reduce medicine carry over into the next load of feed. Augers often leave residual feed in their housing because the screws must have clearance as shown in figure 1, the residual feed is represented by shading.
Movement of feed out of a bin occurs directly above the discharge point. The remaining feed then cascades down the slope of the crater that is subsequently formed. Failure to completely empty bins before refilling will result in residual feed retained in the bin.
Figure 3 demonstrates the typical feed flow in a feed bin with shaded areas illustrating where the feed is most likely to remain and contaminate the next batch.
Feed hoppers may also have residual feed if not properly managed. Ensure that feeders are completely empty before refilling. Figure 4 demonstrates the typical feed flow in the feeder with potential areas of residual feed remaining between batches. Note each feeder design will be different.Use bagged feed to assist the clean out process.
6 Adhere to proper withdrawal periods for all medicines.
7 Prevent recycling of medicines via manure and urine by adhering to cleaning procedures between groups of pigs. Prevent slaughter pigs from having access to urine and faeces from medicated pigs.
8 Read and follow any guidelines provided on all medical products.

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Buy Pig Stockmanship Standards Extracted from Garth Pig Stockmanship Standards*
written by Dr John Carr.

You can buy this book HERE
*Published by 5M Enterprises Limited

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