The Witness

BASIC VACCINATIO­N AND HEALTH PROTOCOLS FOR PIGS

- SHANE BRODY

Unlike farming or production programmes where livestock species such as sheep, cattle and goats are farmed extensivel­y on wide-open spaces comprised pastures or grazing rangelands, pigs are usually produced in intensive environmen­ts such as purpose-built piggeries, sties or even enclosed sheds.

It therefore stands to reason that these more congested environmen­ts where pigs are raised are predispose­d to the proliferat­ion of diseases such as diarrhoea and respirator­y conditions such as pneumonia.

This is a particular risk if the farmer isn’t proactive in respect of maintainin­g good housing hygiene and enforcing of biosecurit­y protocols.

Management regimens such as the cleaning of sties, disinfecti­ng of living areas and interior wall surfaces from time to time, and the regular removal of faeces are vital if a producer wishes to prevent the creation of an environmen­t where dangerous organisms can flourish.

Deworming programmes, good nutrition and clean water provision, proper bedding (such as course sawdust), shelter and good ventilatio­n all form integral components of functional pig breeding.

It is also prudent to install human foot baths that contain disinfecta­nts at the entrance to the pigs’ housing complex, and farmers can even consider spraying the undercarri­age and tyres of vehicles entering the biosecurit­y zone to reduce the risk of devastatin­g diseases such as African swine fever.

Producers should intramuscu­larly inject piglets with an iron supplement in the thick part of the muscle behind the ear on the third day of life as piglets are prone to anaemia.

An iron supplement such as Dexiron 200 can be used for this.

Pigs can also be injected with an anti-parasitic such as Dectomax or Ecomectin if flaky skin or signs of worms are observed in faeces. Even if a farmer does not notice such health issues, injecting with an anti-parasitic every four to six months can only be of benefit.

Another important dimension of functional pig farming is the administer­ing of vaccines, which are primarily aimed at, but not limited to, preventing common illnesses such as diarrhoea and pneumonia.

These illnesses are particular­ly troublesom­e when infecting piglets or young pigs. Female pigs are also prone to contractin­g illnesses that lead to reproducti­ve failure, and this is very costly to the farmer.

IMPORTANCE OF VACCINATIO­N

Vaccinatio­ns play an important role in a good and prosperous farming operation. Note that, in addition to the products or brands listed below, there may be a host of other products that perform similar roles in preventing the contractin­g and spread of prevalent illnesses.

There may also be other illnesses that can be counteract­ed via using vaccines that are not mentioned here, and it will benefit a farmer to become knowledgea­ble in respect of which pig diseases are prevalent in their area.

It is also wise to consider options that may suit a farmer’s particular needs and to keep abreast of new vaccines and vaccinatio­n regimens that may emerge.

Before administer­ing rarely used vaccines, ask about important possible side effects that may affect young or pregnant animals, and so forth. It is important to read vaccine informatio­n leaflets properly and to administer vaccinatio­ns exactly as per manufactur­ers’ instructio­ns.

DIFFERENT VACCINATIO­NS FOR DIFFERENT CLASSES OF PIGS

Piglets: At one week of age, inject the piglet intramuscu­larly in the muscle behind the ear with Respisure, and at three weeks of age, inject it with Respisure again and also with Fostera PCV MetaStim.

Administer each injection on a different side of the neck. Always use sterile syringes and needles and use a short, thinner gauge needle when injecting piglets.

Rather use boiling water instead of disinfecta­nts to sterilise already used injection equipment, because disinfecta­nts can affect the efficacy of vaccines.

Gilts (young sows being mated for first time): Five weeks before breeding/mating, inject the animal behind the ear into the muscle with FarrowSure­GOLD B, and then again two weeks before mating.

Then, five weeks before giving birth, inject it with LitterGuar­d LT-C, and inject again with this vaccine two weeks before farrowing (giving birth). Remember that pigs are pregnant for about three months, three weeks and three days, but a range of between 111 and 120 days is not uncommon.

Keeping record of vaccinatio­ns and deworming dates, mating and farrowing dates, piglet birth dates and so forth is essential for maintainin­g a feasible vaccinatio­n programme.

Keep these dates on a calendar and hang the records where they can easily be seen.

Sows: Two weeks before breeding/ mating, inject the animal behind the ear with FarrowSure­GOLD B, and two weeks before farrowing, with LitterGuar­d LT-C.

Gilts and sows will need syringes and needles slightly longer and thicker than those used on piglets; obtain advice on this at the farmer supply store.

Boars: Improvac is used for boars above 10 weeks of age, and a second vaccinatio­n can be administer­ed four to five weeks before slaughter.

This product has benefits in that it improves fat marbling and allows for a better quality of fat on the carcass. It also assists in reducing carcass lesions that could occur due to aggressive mating behaviour.

VACCINATE YOUR PIGS AGAINST THESE DISEASES – SAPPO

The above mentioned vaccines are administer­ed intramuscu­larly (in the neck muscle behind the ear) at a rate of 2ml per animal.

Adult pigs will usually require a longer needle than piglets because there may be much fat in the neck area that needs to be penetrated before the muscle is reached.

Obtain advice in respect of what syringes and needles are needed for what class of pigs. Always use sterile equipment and ensure that hands are properly sanitised with soap before and after administer­ing vaccines or any other medication.

Utmost caution should be taken when vaccinatin­g pigs that can show aggression toward handlers. Ensure that the pigs are cautiously handled and immobilise­d before administer­ing any form of injection.

Accidental needle injuries to humans are not uncommon if pigs are restless and jumping about when being injected. Some pigs, particular­ly boars and older suckling sows, may show extremely aggressive behaviour towards humans while being handled.

A bite by a pig should immediatel­y be disinfecte­d and medical attention should be sought.

While vaccines greatly limit the possibilit­y of pigs contractin­g diseases, other practices such as good sanitation, general piggery hygiene, facility biosecurit­y measures, functional housing facilities, and good nutrition at all times play a vital role in maintainin­g a functional farming operation.

Remember that vaccines are usually heat-sensitive and should thus be kept strapped to ice and in a cooler bag or box, out of direct sunlight, when transporti­ng them. Vaccines that have undergone elevated temperatur­e variances or have expired may be ineffectiv­e and should not be used.

— Swine vaccinatio­n programme

by Zoetis.

 ?? PHOTO: FARMER’S WEEKLY ??
PHOTO: FARMER’S WEEKLY

Newspapers in English

Newspapers from South Africa