Well you have opened a REAL can of worms here and the only way I can address this issue is to start from the begining I guess. Some time back my sub expressed a desire to induce lactaion and to assume the role of a human cow. We discussed this at length and came to the following conclusions.
1) She wanted to lactate for several reasons;A: she had seen some of her friends that were nursing their babies and loved the way they looked with nice full plump breasts that stood out so good. B: She knew that the local hospital would take all milk donations and give it to mothers that needed it to supliment their newborns diet. C: She had seen the way I all but drooled over the way these bbes looked and wanted to please me.
WE went to various web sites and did lots of research on the topic, went out and bought a rather expensive set of twin pumps, he herbal supliments and even went to her ob/gyn and talked with her. (WE were discreet however about my role in this) WE started on a daily routine of taking the suppliments, mammary stimulation and gradually over a period of three months consulting with our physician my sub went from a 34C to a DD bra.
The pumping started about three weeks into the process and it added a lot of fun to our BDSM. Nothing more erotic than using a pump on a bound naked female. we waited on the aspecs of the hucow untill she started producng. Once she did it was gradual and we kept pumping forcing her body to produce even more. we set our own limits as to her role as a hucow. I built her a milking stantion, bought a goat milker and a set of cowbell nipple clamps to seal them off so she didn't waste any product.
She didn't step into her role as a hucow untill almost five months afer w started this journey. She was allowed to sleep on a thick, soft pad at the foot of our bed and used a litter box for a urinal. I pumped her out about every 6-8 hours and the product was bottled and kept in the fridge and taken to hospital 2-3 times a week.
Breeding for us was not to get her pregnant but to enforce her status as both a hucow and a slut. She wore knee pads when I was home and was mostl on all fours then.
Inducing lactation is a long and sometimes lengthy process, especially if the cow has never had a baby. but the rwards were awesome.

Dear Sir,
I dont have that experience myself but my former Owner, had another property that he used for those activities. If You like i could ask Him if he would explain it to You.

I too would like advice on all of these subjects.