✔ 最佳答案
Pork is delicious and very healthy as many physicians recognize it as a very important source of protein. But the opportunity they present to the dairy industry is very limited.
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.
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.
So why don't we use pig's milk?
It's not because of the taste: pigs belong to the same order of mammals as goats, sheep and cattle, and their milk tastes similar. The real reason we don't get our daily pint of pig's milk is, according to Milk Development Council, it's the devil's own job to milk a pig. Unlike their farmyard cousins, pigs don't have udders --- instead, they have teats. They do not store up their milk much. And so far, it's not proved worthwhile to develop the equipment need to extract milk from them.
