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Author Topic: Vaccine Control Boar Taint  (Read 1571 times)

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mikey

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Vaccine Control Boar Taint
« on: April 14, 2009, 02:47:12 AM »
How Can a Vaccine Control Boar Taint?
GLOBE - The boar taint vaccine Improvac® works by stimulating the pig’s immune system to produce antibodies which temporarily block the function of the testes.

 

This dramatically reduces the amount of testosterone and the boar taint compound androstenone, both of which are released by the testes. These testicular compounds also inhibit the breakdown of another key boar taint compound, skatole; so the vaccine also encourages the elimination of this component of taint. The overall result of vaccination is a reduction in taint levels equivalent to that achieved by physical castration.



Safety vaccinatorThe antigen (the active component) in the vaccine is a carrier protein linked to a small, synthetic molecule which is similar to a naturally occurring substance call GnRF (Gonadotrophin Releasing Factor), which controls the development and function of the testes in male pigs. When injected into male pigs the vaccine causes the immune system to produce antibodies to natural GnRF. Like many other vaccines, the first dose ‘primes’ the system and the second dose (a few weeks later) causes a significant surge in production of anti-GnRF antibodies. For as long as they are present, these antibodies effectively block the GnRF stimulation of the testes.

As well as controlling boar taint, the timing of vaccination, with the second dose only 4 to 6 weeks prior to slaughter, allows producers to obtain the benefit of efficient, boar-like growth for most of the fattening phase – something which is lost when piglets are physically castrated early in life.



Removing of the testes at the abattoirTiming also helps avoid the problems of aggressive and sexual activity that can occur with entire boars in the late finishing phase. As a consequence of the reduction in testosterone after the second vaccination, boars become easier to handle and less likely to injure each other.

The vaccine is not a hormone or drug and, like other vaccines used to prevent disease, has a zero day withdrawal time, reflecting the absence of residue or food safety concerns.

Consumer taste panels in a number of different countries have demonstrated that the quality of meat from pigs managed using the boar taint vaccine has the same high eating quality as meat from female pigs and males that have been physically castrated.




mikey

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Re: Vaccine Control Boar Taint
« Reply #1 on: April 14, 2009, 02:51:05 AM »
your next litter will be the last you have to castrate



With switzerland's final approval and the EU marketeing approval for improvac finally over the USDA should follow suit in just months...

So finally we can drop the arguement about castration and now your 700 lb boar will be worth 50 cents a pound and not 5 cents.... but pepperoni and sausage will go in price...

In the average year I throw away 3 -10 boars.... In a good year, 10 boars that didn't make the show grade or prove to be good breeders will be$$$$$ more dollars in the wallet....

this means no waiting, no down time, no separate housing, and the ability to pour high octane feed at them and let them get really huge.... It's about time

I bet every year thousands of boars are shot and buried with a backhoe behind the barn..... what a waste.


 

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