I'm sorry to hear you had such a bad hatch. We need a lot more info to help you figure this out though, as there are a number of factors that can influence the hatch results. Can you tell us:
- What was the temperature in the incubator and was it a still or forced air incubator? (Still air = no fan, forced air = fan)
- What was the humidity during the first 18 days (assuming this was chicken eggs) and during lockdown?
- How did you place the eggs? Upright, or on their sides and if upright, which end went up?
- How often did you turn the eggs?
- How old were the eggs before you set them?
- Were they from your own hens or were they shipped?
- If they were from your hens, how old are the hens and what are you feeding them?