The calf was a normal 84-pound heifer and the 278-day breeding date was used. One cow was observed to accept service during 2 out of 3 pregnancies included in this study. In the calculation of results, all abortions were excluded, as well as one gestation period of 322 days from the last-known service.he calf was a normal 84-pound heifer and the 278-day breeding date was used. One cow was observed to accept service during 2 out of 3 pregnancies included in this study. In the calculation of results, all abortions were excluded, as well as one gestation period of 322 days from the last-known service.
This is another varies with the individual bird and the breed answer. Some chickens lay an egg almost every day, others every 1.5 to 2 days. Younger hens (called pullets if less than one year old) will lay smaller eggs at larger intervals until they reach maturity.ens lay eggs on the same schedule as without a rooster present. If the rooster is allowed to mingle with the hens, there is a high likelihood that the eggs will be fertilized. This could result in chicks if the eggs are allowed to incubate (either in the nest under the hen or in an egg incubator).
Hen usually start laying at about 5 to 7 months old and reach peak egg production at 11 months old. The number of eggs laid will drop at about 18 to 24 months old but some birds will continue to lay up to a year after that.Egg production will also drop when the hen molts or if nutritional needs are not met. chickens will lay 6 eggs in 3 days. One chicken will lay 1/3 of that number of eggs (1/3 * 6 = 2 eggs) in 3 days. 1 chicken will lay 2 eggs in 3 days. Now, if we want 1 chicken to lay 12 eggs, it will take 6 of these lengths of time. 6 * 3 = 18 days.