In this game there are 4 animals that you can take care of on your farm. There are a few miscellaneous creatures out there in the world of Harvest Moon, but we will focus more on the animals you can tend to.
Little buggers that fly around during the Spring and Summer. Don't mind them.
These pesky little critters will pop from underneath the ground when you plant seeds. Place your dog near them to scare them away.
Usually you will see them running around the mountain. Don't mind them.
Tip: These creatures will pop out when you cut up the Grass on your farm.
In the Winter, you will see Eve's Grandfather (Hunter) with a Rabbit. You can set the rabbit free by saying you will pay 1000 Gold for the Rabbit (you won't lose the Gold). The Hunter will say you have a good heart and let the Rabbit go free.
This is Ellen's Animal in the back room of the restaurant. You can hear it chirp at you if you try to talk to it. This bird will come into play when it comes time for Ellen's Incident (see Girls Section).
Ellen will bring you your Dog named Koro on the second day in the morning. You are given the choice to rename the dog. The dog is used to scare the moles that pop out of the ground and to keep stray dogs from ruining your fence during the night.
Make sure to bring your dog in on rainy/snowy days, but leave him out on sunny or clear nights. You do not have to feed your dog.
Be sure to talk to and brush your horse every day. Like the dog, you don't have to worry about feeding your horse.
Once your horse matures (make sure you've been talking to and feeding it every day), you will be able to buy a saddle bag. Then you can get on him and ride around the farm in style. The saddle bag is used to ship crops. Bring him around the field, put the crops in the bag and they are automatically shipped.
Your chickens will probably be one of the first, if not the first, animals you get in the game. They cost 1000G each, and you can have up to 12. They will eat two different items: Fodder that you cut from the Grass in your fields (least expensive), or store bought chicken feed, but that can run pretty pricey at 300 Gold per 12 Meals. You can sell your chickens for 500G each.
Make sure to feed your chickens every day. If you miss a day your chicken will stop laying eggs for 3 days until you get it back on schedule.
It is best to buy your first chicken, and then place the chicken's eggs in the incubator. It will take 6 days for the chick to hatch from its egg. From there it will take another week before it is fully grown and laying eggs. Each egg sells for 50G.
As in other Harvest Moon games, your cow is probably the most profitable animal in the game. They cost 6000G each, and you can have up to 12. It will eat two different items. One is fodder that you cut from the grass in your fields (least expensive), and the other is store bought cow feed–but that can run pretty pricey at 700G per 10 meals.
You simply need to brush, feed, and milk your cow every day. Only mature cows can be milked. The more love you give your cow, the happier they will be and the better quality milk they will give you. On sunny days (not when raining or snowing) put your cows outside. Make sure you have big field of Grass with a fence around it (using wood or rocks). The field of grass also needs to be fully grown.
Just a tip–although it might be funner to breed the cows, you will save the most money and time if you just buy them. When you breed them it takes 30 days before the calf is born, then another 15 or so days before it starts giving milk, whereas if you buy the cow, it will start giving you milk in only a few days.