Guest guest Posted June 28, 2008 Report Share Posted June 28, 2008 What can A2 milk genes do for you? They can increase the chances of you getting fewer A1 beta caseins in your home produced milk. How can you get A2 milk genes in your herd? By using a pure homozygous for A2 bull to sire new calves out of your cows or by acquiring new cows that are proven to produce A2 milk. A few A2 cows and calves are available from Paradise Farm. Brenn of Paradise is listed on the American Dexter Cattle Association "AI Bulls" page as a homozygous A2 producer bull. http://www.dextercattle.org/Artificial%20Insemination%20Bulls.pdf Why would you want to do this? The A1 beta caseins that are found in some cow's milk has been linked to health problems, such as type 1 diabetes, heart disease and autism. A2 milk is milk that does not contain the A1 beta caseins. A1 = bad, A2 = good. How many types of beta caseins are there? There are two, the A1 and the A2 beta caseins. They may both occur in the same cow's milk or the cow's milk may be purely one or the other. A cow or bull that has both genes for producing A2 milk is called "CC". One that has both genes for producing A1 milk is called "AA". One that has one of each gene is called "AC". This cow will produce milk that contains fewer A1 beta caseins than an "AA" cow. How prevalent is the A1 beta casein? It is estimated to be present in 40-60% of all commercial dairy cattle. Up to 70% of the Holstein breed is affected. Holsteins are the most popular dairy breed. Not enough tests have been performed on privately owned cattle to give accurate answers to how many of them are affected. Practically all store bought milk will contain A1 beta caseins. How can I get my cattle tested? At present, the company that does the testing has suspended testing of US cattle. We have to wait for them to resume testing. Even then, they have previously only tested commercial dairy herds, not privately owned cattle. It may be a long wait. How would it benefit me to use "CC" semen on an untested cow? The calf will definitely receive one A2 gene from the sire. The other gene will come from the dam. If she's "CC" then the calf will be "CC" pure A2 producer. 100% chance. If she's "AC" then the calf has a 50% chance of being "CC" and a 50% chance of being "AC". There will be no "AA" calves. If she's "AA" then the calves will all be "AC". They'll produce far less of the A1 beta caseins. In almost every case, the amount of "CC" genes in your herd will increase. If you add a "CC" cow to your herd, and AI breed her to the "CC" bull, then all of the calves from that pairing will be "CC" for A2 milk. You can create a pure A2 herd this way. How expensive is semen from Brenn of Paradise? No more than any other good AI bull. Straws are currently available for $25. How about the cows and calves? The cost of a pure A2 producing cow is going to be slightly higher than an untested cow. The cost of testing and the rarity of proven A2 producers demands it. However, the prices are still affordable, not sky high. Genebo http://paradisedexters.com Quote Link to comment Share on other sites More sharing options...
Guest guest Posted June 28, 2008 Report Share Posted June 28, 2008 I am excited about the POSSIBLE health benefits of A2 milk. However, from the research available on the internet, there is no reproducible research science that has proven a cause and effect relationship between A1 milk and diabetes, autism, heart disease, etc. In my humble opinion, the scientific jury is still out on A1 vs. A2 milk. Much if the early research has been done on comparison of countries not individuals. " The main study supporting a relationship with the type of milk consumed was a comparison of 20 countries. The countries with the highest consumption of A1 milk had the highest rates of type 1 diabetes and heart disease. I must caution you, however, that comparisons between countries can be difficult to interpret. There are many other factors that contribute to heart disease and diabetes and the information is only averaged for the country's population. A few other studies provide support for the hypothesis. More research, especially human trials, is needed before we can say with confidence that the A1/A2 composition of milk is important in human health. " http://www.thehawkeye.com/column/Dietitian_Magician_050407 " From the non-commercial sector, Professor Paolo Pozzilli (St. Bartholomew’s Hospital †" London, U.K.) collaborated with Bob Elliot in an attempt to demonstrate Professor Bob’s earlier findings on diabetes in mice. It bombed. No differences were observed between A1 or A2 milk in their ability to induce diabetes in rodents. According to Pozzilli, “Cows milk is one of the environmental factors involved in triggering the autoimmune response that can cause type 1 diabetes in susceptible individuals. It may not be the most relevant one, but it is certainly the most commonly encountered. However, I would not consider A2 cow’s milk to be less antigenic (i.e. capable of triggering an immune response) than A1.†http://www.redmountainspa.com/_health_education_fitness/articles/a2milk.html I am skeptical about the A2 Corporation's claims because of their profit motive. So I am waiting for unbiased research to come out on the benefits of A2 milk before I spend a lot of money and effort trying to convert our heard to A2 homozygous. I still feel our Ayrshire milk is good for us. Respectfully, Ercilia Tallent > > What can A2 milk genes do for you? They can increase the chances of you getting fewer A1 beta caseins in your home produced milk. > > How can you get A2 milk genes in your herd? By using a pure homozygous for A2 bull to sire new calves out of your cows or by acquiring new cows that are proven to produce A2 milk. A few A2 cows and calves are available from Paradise Farm. Brenn of Paradise is listed on the American Dexter Cattle Association " AI Bulls " page as a homozygous A2 producer bull. http://www.dextercattle.org/Artificial%20Insemination%20Bulls.pdf<http://www.dex\ tercattle.org/Artificial%20Insemination%20Bulls.pdf> > > Why would you want to do this? The A1 beta caseins that are found in some cow's milk has been linked to health problems, such as type 1 diabetes, heart disease and autism. A2 milk is milk that does not contain the A1 beta caseins. A1 = bad, A2 = good. > > How many types of beta caseins are there? There are two, the A1 and the A2 beta caseins. They may both occur in the same cow's milk or the cow's milk may be purely one or the other. A cow or bull that has both genes for producing A2 milk is called " CC " . One that has both genes for producing A1 milk is called " AA " . One that has one of each gene is called " AC " . This cow will produce milk that contains fewer A1 beta caseins than an " AA " cow. > > How prevalent is the A1 beta casein? It is estimated to be present in 40-60% of all commercial dairy cattle. Up to 70% of the Holstein breed is affected. Holsteins are the most popular dairy breed. Not enough tests have been performed on privately owned cattle to give accurate answers to how many of them are affected. Practically all store bought milk will contain A1 beta caseins. > > How can I get my cattle tested? At present, the company that does the testing has suspended testing of US cattle. We have to wait for them to resume testing. Even then, they have previously only tested commercial dairy herds, not privately owned cattle. It may be a long wait. > > How would it benefit me to use " CC " semen on an untested cow? The calf will definitely receive one A2 gene from the sire. The other gene will come from the dam. > > If she's " CC " then the calf will be " CC " pure A2 producer. 100% chance. > > If she's " AC " then the calf has a 50% chance of being " CC " and a 50% chance of being " AC " . There will be no " AA " calves. > > If she's " AA " then the calves will all be " AC " . They'll produce far less of the A1 beta caseins. > > In almost every case, the amount of " CC " genes in your herd will increase. > > If you add a " CC " cow to your herd, and AI breed her to the " CC " bull, then all of the calves from that pairing will be " CC " for A2 milk. You can create a pure A2 herd this way. > > How expensive is semen from Brenn of Paradise? No more than any other good AI bull. Straws are currently available for $25. > > How about the cows and calves? The cost of a pure A2 producing cow is going to be slightly higher than an untested cow. The cost of testing and the rarity of proven A2 producers demands it. However, the prices are still affordable, not sky high. > > Genebo > http://paradisedexters.com<http://paradisedexters.com/> > Quote Link to comment Share on other sites More sharing options...
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