How many berries must you feed the miltank at moo moo farm?

"In Pokemon SoulSilver Version, you'll encounter a Moo Moo farm with a sick Miltank. Heal this Miltank by giving it 7 Oran Berries. After you heal it, you'll get a Seal Case and some Seals from the girls there. ChaCha on!" and... "You can't really find Oran Berries unless you got your mom to save up some money. But the chance of actually her getting you Oran Berries is really rare. One thing you can do is participate in the Lottery in the Goldenrod Dept. Store and try to win an Oran Berry. Do the Lottery thing as many times as you can until you get an Oran Berry. Do you have a Berry Pot? If you do, you can grow them. Go the the green house in Goldenrod, the place where you got the squirtbottle. Buy the Gooey Mulch (or the Mulch that allows you to grow more berries) which allows you to grow alot more berries than it normally produces. Normally, if you tried to grow Oran Berries, you'd only get 2. Gooey Mulch increases the number to 5. Put the Mulch in any pot inside the Berry Pot (Mulch is a fertilizer). Then put one Oran Berry into the fertilized pot. Add water and you're good to go. Just make sure to water your plant every while if you see the soil is dry otherwise you won't get your berries. This is the most effective way to get Oran Berries." I got this from other sites so it isn't mine and it's helped me A LOT