G6S Testing ??

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Sondra S OK am wondering do we need to do this testing every year or is this a one time thing also where do we do the testing. Am wondering if this is something we need to insist on when purchasing also besides just CAE and CL #1 · Mar 14, 2009 OK am wondering do we need to do this testing every year or is this a one time thing also where do we do the testing. Am wondering if this is something we need to insist on when purchasing also besides just CAE and CL Sort by Oldest first Oldest first Newest first Most reactions #2 · Mar 14, 2009 This is one of those test that if you do it once on an animal it will never change. It is genetics-a recessive trait. So you have to have a buck and doe that are carriers for the off spring to have this, and then I think it is only 25% chance that the offspring would have it. However, if you have a doe that is a carrier and the buck is normal (or the other way around) then you could have kids that are carriers. Those that are carriers can pass on the trait but will never show have problems. So you could test your bucks and if they are normal, then you would never have G6S positive animals however you could have carriers if your does were carriers. Does this make sense? Here is a good example. I have brown eyes (dominate over blue eyes) my DH has blue. We have a blue eyed son because I carrier the recessive gene for blue eyes. Our daughter has brown eyes but is also a carrier of blue eyes because DH has them. So now just say that instead of blue eyes, it is G6S. See how it is passed on? I love genetics. If this does not make sense, let me know. So, to answer your question, you could test your animals and if all were negative then you would not have to test them again. Then you would just test incoming animals. However, if the dam and sire of your animals were tested and both negative, then your goat would also be negative and you would not need to test. Theresa #3 · Mar 14, 2009 Also, isn't this specific to Nubians and Boers? So, you wouldn't need to test other breeds, right? Provided that they were purebreds. #4 · Mar 14, 2009 Okay, stupid question time. what is G6S? #5 · Mar 14, 2009 There's an explanatory article at http://gallopinggoatsfarm. Tom #6 · Mar 14, 2009 And another on http://www.freewebs.com/caprinebeings/ . Another thought here to is: Lindsey's doe just had Nupines. So the doe was not tested and will get tested to clear the experimental kid. If she turns out positive then its is a hunt for the parent that carries it as breeder no longer has those two. Next one that comes in or gets breed else where will be tested. Testing two years ago cost $80.00, sure hope it hasn't gone up. Tammy #7 · Mar 14, 2009 I know there is also an article in Goat 101 guess I need to study up on this. #8 · Mar 14, 2009 The test is $30 per sample and like Theresa said you only need to do it once for the goat's lifetime. G6S is not something to get hysterical about but to work around in my opinion. Those animals who are carriers can live a normal life - become awesome animals, milk well, appraise excellent, become champions and have beautiful kids. When you breed a carrier to a carrier there is 25% chance that the kid will be affected. It is similar to knowing that your goat has extra teats in the bloodline. If you have an extra teat - you cull the kid that's all. The mother and dad are both probably carriers but you don't cull them. Thank God! we don't have a test for extra teats or some would go ballistic about that too! There is a slight difference here - the extra teat shows up right away most of the time (although extra orifices can be tiny and go unnoticed). G6S kids appear normal and then it suddenly "kicks in" and the kid becomes unthrifty - sort of like a coccidia stressed kid but slab sided and strange looking. The only affected one that I have seen looked normal and was junior Grand in a show ring then some months later began to develop strangely. She was tall, rangey looking but no spring of rib - really slab sided. The people put her down at around 2 years old after kidding and developing a baseball size udder. She also had an ugly head. I wanted to see her when she was butchered and was able to - everything, heart, lungs, kidneys looked normal to me and though no expert - I have seen lots of goats when butchered. I think you would do well to test the bucks that you purchase - or if you are the seller test the bucks who come from known G6S carrier dams. You can however use carrier sires who are otherwise excellent animals - you just breed them to does who are not carriers. Affected animals should be culled however - they will actually cull theirselves as they don't have a long life span. I think we can learn a lesson from the Brown Swiss cattle breeders who culled out some of their best genetics because of the discovery of a similar gene. It wound up hurting the breed and they are not the competitive breed they once were. That's why I caution that we work around this gene rather than becoming hysterical about it. As for me, all of my bucks are G6S normal and really that's all I care about. OK - just my opinion I know - sorry if I have crossed the line with someone. Opinions are like noses - everybody has one. #9 · Mar 14, 2009 G6S is not the same as Weavers and SMA in the Swiss breed. With those faults, you can carry it on for years and not know anything is wrong with them. Weavers happen when they are most of the time entering the milk string at 2 years old, and SMA is more at a younger age. The reason that Swiss have taken the genes out of the pool is from one big bull in the 80's that made it known to the world that there is a fault...the bull was Bababray. He was just a herd bull in the Venture herd in CO, when a bull buyer saw his calves and put him into stud. The owners have had alot of cows that had the weaver gene, but failed to tell the buyer. So, EVERYONE in the Swiss breed jumped onto that band wagon and started to use him heavy. Since, he was high type plus, high milk. Then years later the breed was faced with the fact of loosing numbers since, so many cattle now had the gene. That is when BSA jumped in and said all cattle that was out of him HAD to be tested. They found he was a high carrier of the gene and was sent to market. In MHO I think that ADGA should make all AI collected bucks be tested for the G6S gene. That is where you can cut down on the number of animals effected by the gene. Since, the semen is going to be sold over the country and not just in a local type of area. Also, that way in years to come you know that the bucks dont have the gene, if it is almost bred out of the goats. Ken #10 · Mar 14, 2009 OK well all my Nubians were tested negative prior to me getting them so then really I shouldn't need to test what I have here then should I. #11 · Mar 14, 2009 Ken, I would vote for the Ai bucks to be required to be tested! That's really not a bad idea at all. #12 · Mar 14, 2009 Wouldn't think so, Sondra. I've seen a lot of farm websites where people say a goat is either "G6S normal by test" or they say "normal by parentage". I think the AI bucks testing is a great idea, too! #13 · Mar 14, 2009 Right Sondra. If they have been tested before then you don't need to test or if their parents were tested and both were negative. And I agree with Tim. It is nothing to get worked up over. It is easy to control this with testing and knowing what animals are carriers and which are not. Then if you breed 2 carriers, you just know that you have a 25% chance of having an animal with the trait. So you would test all offspring from that breeding and cull those that had it. Theresa #14 · Mar 14, 2009 Nubian Talk on yahoo groups has a list of carrier and negative animals, I wish everyone would post this information...I think only the owner of the animal at the time of testing can post it, and they no longer are going to let you put up animals who are negative do to parantage testing. I know there are alot of my animals out there who have been tested, but not all of them are up on the list...maybe giving a discount to folks who test and then post the animal after purchase would be a good incentive? I also see the value in testing bucks. Being on the DNA committee want me to say something about this or do we want to handle this via INBA? Alot like all spotlight/colorama sale animals being negative for CAE but this will cause an uproar It is needed. Still fighting to have all bucks collected for AI (whose semen is sold off the farm, so it doesn't effect those who keep bucks for insurance in their own tank) in the DNA data base, it's been a slow road to hoe. 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