If a lamb dies and is no longer nursing, the ewe's body will continue to produce milk for a time, but without regular milking or nursing, the milk supply will eventually decrease. The milk can accumulate in the udder, leading to discomfort or potential health issues such as mastitis if not removed. The ewe may naturally reabsorb the milk, or farmers may need to intervene by milking her out to prevent complications.
The Udder.
The teats on the udder.
A mother goat's milk will build up if the baby dies, and dry out eventually if it is a meat or fibre goat. If it is a dairy goat, milking will be necessary, or the goat's udder will burst and no one will ever be able to milk it again. Kids on a dairy goat help keep the udder from, at best, distending, or at worst, bursting. Milking also helps the goat get used to the milking routine.
The udder will only swell, the cow is dropping her milk into the milk cisterns in the udder for the calf to suckle.
A calf would drink the milk direct from a cows udder, or it can be fed the milk from a bottle, but you can not put the milk back into the udder.
The part of a cow that releases milk is the udder. The udder consists of four teats, each capable of producing milk. Milk is produced in the mammary glands within the udder and is released when the cow is milked.
UDDER
Udder size is heritable, yes. This is quantified by milk production: as we've seen in dairy cows, the larger the udder the more milk a cow will (or should) produce.
The udder.
Her udder.
it dies
There are a number of things that you can do. If the cow has developed an udder and is just not letting her milk down, try to administer about 2-3 cc of oxytocin into the rump area (by the udder but not into the udder). Wait a couple of minutes after giving the needle and see if she has let her milk down (either have the calf suckle or strip some milk out of the udder by hand). If she has not developed an udder, you will have to either try to get another cow to adopt the calf or feed the calf milk replacer. You might have to cull the cow if she did not develop an udder as she may not be able to produce milk in the future.