http://abcwednesday-mrsnesbitt.blogspot.com/
http://www.thepigsite.com/pighealth/article/222/udder
A healthy functional well-formed udder is vital to piglet survival not only to provide colostrum and milk but also to give all the piglets easy teat access.
Teat and udder conformation
There are two fundamental factors that decide whether a sow can rear 12 or more pigs; first whether all piglets are able to get access to teats and second whether they can suck milk freely from them.
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