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TAURANGA KATIKATI TE UNA & PAPAMOA VILLAGE VETS - YOUR ANIMAL HEALTH PROFESSIONAL

Animail

RestrictedVeterinary Medicine

Consultations

May 2016

taurangapapamoa village

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For more information visit www.bopvets.co.nz, call 0800 VETS BOP (0800 8387 267) or visit one of our clinics; Tauranga, Te Puna, Katikati or Papamoa

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Staff Pro�le - Holly

Restricted Veterinary Medicines (RVMs) such as Antibiotics, Intramammary treatments and anti-inflammatories are regulated by legislation and can only be used by or under the guidance of veterinarians. They often have withholding periods and have to be used in a certain way to be effective. In order for RVMs to be used by persons other than vets they need to be authorised.

At this time of the year we look at renewing Veterinary Authorisations for Restricted Veterinary Medicines for our clients.

Under the ACVM legislation, veterinarians are required to consult with clients and obtain sufficient information to ensure that treatment is appropriate and in the best interest of the animal(s). They will also ensure that the administration of these medicines is done in the correct way, which abides with any applicable withholding periods.

appropriate health care for your animals for the coming year.

The guidelines for RVM usage can be found in the Operational Code for Dairy Farms, issued by MPI, below is a link to this document.http://www.foodsafety.govt.nz/elibrary/industry/-dairy-nzcp1-design-code-of-practice/amdt-2.pdf

One change this year is that needles used to administer medicines to an animal need to be disposed of properly.Ideally this is in asharps container thatis then incinerated.If you require a sharpscontainer pleasecontact us and we canorder one suitable foryour purposes.

- Tony Austwick (BVSc, BSc)

Our RVM consults provide an opportunity for us to review usage of RVMs by our clients, enabling us to identify any issues or changes that have occurred over the last year. For example, if a farmer has increased their use of intramammary treatments, we will look to find a cause. Another valuable discussion is identifying the most appropriate Dry Cow therapy which is guided by the level of mastitis seen during the season.

After an RVM consult our veterinarian will provide written Veterinary Operating Instructions (VOIs) for all RVMs that have been authorised. It will also state the amount of an RVM that can be supplied to the client over the next year. These documents are mandatory before any RVM can be supplied to, and used by a person who is not a vet. All treatments must be recorded and be available for audit by appropriate authorities. Any treatment record must included a unique animal identifier, the condition being treated, the RVM treatment used and all dates administered, the withholding period and date milk re-entered the vat.

An RVM consultation is far more than just a legislative requirement. It is an opportunity for us to review all RVM usage and plan to provide the most

If you have any questions about RVMs or would like to book your consult please contact us on 0800 838 7267.

Holly joined the team in February 2015 after graduating from Massey in 2014. She is enjoying the challenges that a mixed animal practice provides and is primarily based out of our Tauranga and Te Puna clinics. Holly loves working with cattle and lifestyle animals, while also developing her expertise with small animal medicine.

Outside of work Holly can be found exploring the beautiful outdoors of the Bay of Plenty from her base at the Mount. Otherwise she will definitely be on the dance floor! She has trialled many different styles of dance but her current passion is West Coast Swing and Ceroc where she competes around New Zealand and in Australia.

elcome to the May Animail from Tauranga Vets. With winter just around the corner, many of you will be digging out your woolies in preparation for a new season on the farm.

On a positive note, the weather has allowed for good pasture growth which has seen relatively strong milk production during the Autumn compared to previous seasons. This month Holly Rabone writes about the Prevention of Calf Diarrhoea, Colostrum Management and Hygiene. We also have an article about Winter Worming for Horses and Tony Austwick talks about ‘Restricted Veterinary Medicine’ consultations which are on the agenda. Sit back, grab a cuppa and enjoy the read.

Lepto Vaccinations Trace element testing Magnesium dusting for paddocks

Rotovirus protection Calf shed hygiene – time to sterilize and spray Mid winter drenching

CHECKLIST

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Calf DiarrhoeaPrevention

We’re available to talk to you on the phone too. So don’t hesitate to contact us anytime Tauranga 07 578 4044 | Te Puna 07 552 4015 | Katikati 07 549 0215 | Papamoa 07 572 2334

Calf diarrhoea is a commonly encountered problem in spring and there are a variety of possible causes listed in the table below. To prevent a disaster further down the track it is important to start thinking about how to give your calves the best start.

Colostrum ManagementGood colostrum management is essential to ensure that there is successful transfer of protective antibodies from cow to calf and therefore adequate immunity for the calf. Each calf should get 2 to 4L ofcolostrum in the first 4 to 6 hours of lifedepending on the quality of colostrum.To make sure that your cows are providingtheir calves with the best possible colostrumthey should be vaccinated to boost theirantibody levels. Vaccinating your whole herdgenerally gives the best results and this hasto happen BEFORE CALVING.

There are two options when it comes to vaccination:

Make a time to discuss these options with your vet.

HygieneVaccination does not replace good calf shed hygiene. If there are high pathogen burdens in the environment then calf immunity can still be overwhelmed. Adopting an “all in all out” policy in the calf shed and isolating sick animals immediately will reduce disease spread. Use disinfectants regularly to keep the environment clean. Always remember that some of the pathogens causing calf diarrhoea can also cause diarrhoea in people. Good hygiene will help to protect you as well as your calves.

If you do have a diarrhoea outbreak, isolate affected individuals and seekveterinary advice promptly to limit the impact. Fluid therapy is essential to give calves the best chance of survival. However, prevention will always have a better outcome than treatment so contact the clinic to make a vaccination plan now beforeit is too late.

- Holly Rabone (BVSc)

We hope you have enjoyed this latest edition of the Tauranga, Katikati, Te Puna and Papamoa Village Vets newsletter

Take a moment to visit theTauranga Vets Facebook page, www.facebook.com/taurangavets, and Like what you see. We love your feedback and are always happy to answer your animal health questions.

Tauranga Vetswww.bopvets.co.nz

Its typical to consider the grazing season as the risk period for intestinal parasites and once the cold snap arrives we tend to forget worming until the warmer weather arrives in spring. Using worm egg counts as a guide to worm burdens also seems to support this notion by tending to be low to zero at this time of year…..so what’s the problem?

In winter when the temperature falls, worm life cycles slow down and in some cases (typically cyathastomes or small red worms in horses) become arrested. Eggs and early larval stages ingested from the pasture normally invade the intestinal lining where they mature in to late stage larvae before re-emerging into the gut to finish maturing in to adults that start laying eggs again. As the temperature drops and day length shortens however, more and more larvae become arrested in the gut wall, often accumulating in large numbers (encysted). But, with fewer and fewer adults maturing and laying eggs, worm egg counts typically drop (irrespective of worming) which can leave the impression of a worm free animal.

The stimulus for emergence is temperature rise and increasing day length: spring time. If there has been a big build up of larvae during late autumn and early winter, mass emergence in the spring causes severe intestinal damage associated with protein loss, ill thrift, diarrhoea and sometimes colic which can be life threatening.

Encysted larvae are resistant tomany anthelmintics (wormers)so brand selection is important.Moxidectin (Equest) and a FIVEday course of fenbendazole(Panacur) are both effective.Equest plus is also effectiveagainst tapeworm. If usingPanacur, tapeworm treatment canbe covered with additionaltreatment with either pyrantel orpraziquantel.

For more information, please do not hesitate to contact us at the clinic.

- David Howes (VetMB, MACVSc)

Agent/weeks of age 0 1 2 3 4 4+E. coli (k99)Rotavirus/CoronavirusCryptosporidiumSalmonellaAttaching-efficacy E.coliCoccidiaYersinia Rarely < 3 months

Scourguard

What it protectsagainst

Dosing regime

Rotavec-corona

Bovine rotavirus (serotypes G6 and G10), bovine coronavirus, E. coli and Cl. perfringens type C

Administer 2 doses approximately 3 weeks apart to pregnant cows, with the second dose given 3–6 weeks before calving. Revaccinate annually with a single dose 3-6 weeks prior to calving.

A single injection should be given during each pregnancy between 12 and 3 weeks before calving is expected.

Bovine rotavirus, Bovine coronavirus and E. coli

WinterWorming

(Don’t rely on eggcount)

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