I have never heard that but there are people that think we should lower or completely halt our intake of milk and milk based products.

Porcine do lactate and their milk I will assume would taste great, because it is made of 8.5% fat in relation to the fat that makes up 3.5% of the components in cows milk. The other components such as lactose and water are found at nearly the same percentages in pig's milk. However, pigs will on average produce 13 lbs of milk in a day as compared to cows that produce 65 lbs of milk on average per day. Pigs unlike cows cannot become pregnant while lactating and therefore possess a severe economic problem to producers. whfle pigs consume less feed per day, economics does not allow pigs to be a viable source of dairy products.

I don't drink any milk it grosses me out! It's nothing personal pig!

i work with pigs and cows, and i would prefer to milk a cow over a pig... they might bite and trample if we tried, and i wouldnt want to be the sucker that milks all 14 teats either. And to that other dude.. its not the teats that are corkscrewed its their penis.

I don't think we "can't", I think it's not marketed-and if it was, would we choose to drink it? I would say probably not.

1) "The biggest challenge facing the porcine dairy industry is collecting the product. Pigs on average have fourteen teats as opposed to cows that have four teats. Pigs also differ from cows in their milk ejection time, a cows milk ejection is stimulated by the hoimone oxytocin and can last ten minutes, where as a pig's milk ejection time only last fifleen seconds as the suckling pigs stimulate the release of oxytoc in. The technology of a 14 cupped mechanized milking machine that can milk a pig in 15 seconds is not available to pork producers." Source and further information: http://www.jalanjalan.com/letters/pages%20and%20menus/industry.html#pork 2) "Pig milk contains about 6.8 percent fat, 2.8 percent casein, 2.0 percent whey protein, 5.5 percent lactose, and 1.0 percent ash. Thus, from a composition point of view it is a fairly rich milk. However, since the pig is a nonruminant, the milk fat will be primarily long-chain fatty acids (probably a lot of C16:0). The short-chain fatty acids that provide the typical flavor to dairy products produced from ruminant milks (e.g. cow, goat, sheep, etc.) would not be present in pig milk. The fatty acid composition of the fat in the milk from pigs will be a function of the diet of the pig, just like it is for milk fat in human milk. Thus, I don't think there is much of a future for pig milk cheese." Source and further information: http://forums.egullet.org/index.php?showtopic=92079 3) " Sow milk is very nutritious and high in fat content. Sows produce a large amount of milk, providing a volume that is very similar to the production from cows. The reason that we do not milk pigs is because they are more difficult to restrain and they have several more teats than cows, making it difficult to milk them." Source and further information: http://www.pork4kids.com/AskAFarmer.aspx 4) "In addition to cows, the following animals provide milk used by humans for dairy products: Sheep (the ewe) Goats (the nanny) Buffalo Horses (the mare) Donkeys Camels (including the South American camelids) Yaks Water buffalo Reindeer Zebra In Russia and Sweden, small moose dairies also exist. Donkey and horse milk have the lowest fat content, while the milk of seals contains more than 50% fat. Whale milk, not used for human consumption, is one of the highest-fat milks, containing up to 50% fat. The high fat content of whale milk is not a product of cetacean's great size, as guinea pig milk has an average fat content of 46%. Human milk is not produced or distributed industrially or commercially; however, milk banks exist that allow for the collection of donated human milk and its redistribution to infants who may benefit from human milk for various reasons (premature neonates, babies with allergies or metabolic diseases, etc.). All other female mammals do produce milk, but are rarely or never used to produce dairy products for human consumption." Source and further information: http://en.wikipedia.org/wiki/Milk#Other_animal_sources