Are you meaning fetal development, or in a heifer? In the heifer, the udder starts to form as her unborn-calf develops, although this development can vary dramatically from heifer to heifer. Some fully bag-up (are full of milk) weeks before the calf is born; some do not get a full udder right before or right after the birth. The breed of cow also influences the size and development of the udder.
Udder development continues during lactation. The udder stretching by being full of milk, and the calf nursing on the teats, helps to increase the size of the udder in the young cow. By the second birth, the udder will often be larger and really show the cow (goat, sheep's) potential as a milk-producer.
Cows and heifers can start freshening (producing milk) from 2 to 3 weeks or up to 12 to 24 hours prior to calving. Heifers tend to be more unpredictable than cows in this respect.
A cow is a mature bovine that has had at least a couple calves, so her udder has already formed. A heifer, on the other hand, will only begin to form an udder when she is in the last trimester of pregnancy.
The teats on the udder.
Nope. Only the doe and her genetics is responsible for how her udder will form and how much milk she will produce.
The floor of the udder is just that- The floor of the udder. The shape of the udder is determined by the medial and lateral suspensatory ligaments. Poor ligaments mean a saggy, mastitis prone, misshapen udder.
The Udder.
A complex system of ligaments holds the udder to the abdomen.
When the cow's udder is full and heavy, it needs to be milked.
Cows only have one "breast," and that is the udder.
The udder will only swell, the cow is dropping her milk into the milk cisterns in the udder for the calf to suckle.
Generally, udder treatments are done using a teat cannula...the medication is infused into the affected quadrant(s) of the udder by sliding the cannula into the udder through the openings where milk would normally pass out during the suckling process and the medication would be pushed into the udder via syringe.
Hot air rising and sthen cools and sinks and forms udder like shaped clouds
The udder, just like in a cow. The udder is stationed in the same area as a cow's, only there are just two teats, not four, on that udder.