Seller's guide
A good listing does two jobs: it gets found by someone searching, and it answers enough questions that the right buyer picks up the phone. Both jobs are done with plain facts, not adjectives.
Write what a buyer would type: '12 black Angus feeder steers, 550 lb, weaned, Sedalia MO'. Count, class, breed, sex, weight or age, and town.
Skip the sales language. 'Beautiful must see!!' matches nothing anybody searches for and takes the space your keywords needed.
Use the words buyers use. 'Bred heifers', 'cow-calf pairs', 'feeder calves', 'hair sheep', 'Boer does', 'broke gelding' — these are real searches. Invented internal names are not.
For cattle: head count, age, breed, sex, weight, breeding status, vaccination program.
For horses: age, height, breed, sex, level of training, what they have actually done, soundness and any vices.
For goats and sheep: breed, sex, age, registered or commercial, kidding or lambing history, parasite and hoof management.
For pigs and poultry: breed, age, sex, weight or laying status, and the setup they came out of.
If a buyer has to message you to learn the weight or the age, half of them do not bother.
Line 1 — What it is: 'Five registered Boer does, 2–4 years old, all bred to a registered buck, due March.'
Line 2 — Condition and program: 'On a rotational deworming program, hooves trimmed in January, CD&T current.'
Line 3 — Why they are for sale: 'Downsizing the herd — we are keeping the younger set.' Buyers always want to know, and a straight answer builds trust.
Line 4 — Flaws: 'One doe has a torn ear tag and a small scar on her flank. Nothing that affects breeding.'
Line 5 — Terms: 'Price is per head, firm. Will split. Can hold one week. Buyer hauls; we can help load weekday mornings.'
Line 6 — Location: 'Located 15 minutes east of Sedalia, Pettis County MO.'
Downsizing, culling for age, retiring, changing breeds, keeping replacements — any honest reason is fine, and silence is not. An unexplained good deal reads as a hidden problem.
A bad quarter, a wild one in the bunch, an open cow, a horse that cribs, a hen past peak lay. Name it, then price for it.
Every private sale is as-is. The buyer who reads a disclosed flaw and still drives out is the buyer who is going to load.
Give the town and county, not just the state. Distance is the number one reason buyers do or do not act, and they cannot judge it from 'Missouri'.
Give a real number. 'Make offer' or 'call for price' filters out serious buyers who are comparing five listings this evening.
End with a next step: 'Message me and I'll send video of them walking' is worth more than 'serious inquiries only'.
Four to eight daylight photos: full side profile first, then front, rear, and close-ups of feet, udder, markings or papers. Add a short video if the animal moves well.
The first photo is your thumbnail everywhere the listing appears — on the board, in search, and when someone shares it to a Facebook group. Make it the strongest one.
Answer the same day. In private livestock trade, speed beats almost everything else.
Update the listing as things change, and mark it sold when it sells — including when only part of a group goes.
Share the listing into the local farm groups you already belong to. A listing that lives on a searchable page and gets shared into a group beats a group post that disappears in an hour.