There are a few key considerations to keep in mind when making your own poultry feed in Kenya. Here are some steps you can follow to calculate the amount of feed you will need:

1. Determine the number of birds you will be feeding: This will help you determine how much feed you will need to produce.
2. Calculate the daily feed intake per bird: Different types of poultry have different daily feed intake requirements. For example, laying hens typically require around 120-140 grams of feed per day, while broiler chickens may require up to 200 grams per day.
3. Determine the feed conversion ratio: The feed conversion ratio is the amount of feed required to produce a unit of weight gain. This can vary depending on the type of poultry and the feed ingredients used.
4. Calculate the feed required for a specific period of time: Once you know the daily feed intake per bird and the feed conversion ratio, you can calculate the amount of feed required for a specific period of time, such as a week or a month.
5. Determine the cost of the feed: To calculate the cost of the feed, you will need to know the price of the feed ingredients and the amount of feed you will be producing.

By following these steps, you can calculate the amount of feed you will need to produce for your poultry in Kenya. It is important to keep in mind that these calculations are estimates and may vary based on factors such as the age and health of the poultry, the quality of the feed ingredients, and the environmental conditions.