There was a lot of research done in the 1950’s and 60’s on vitamins for commercial laying flocks and thanks to this, we now understand the vitamin needs of chickens a little more.
Most vitamins are essential to a chickens health and growth and it doesn’t really matter how they get these. Modern feeds contain a multitude of chicken vitamins and of course if you provide your hens with fresh greens and free range, in truth, they probably don’t need an additional top up of vitamins however there will always be times when a vitamin supplement is useful, for example:
At times of stress: changes to their environment, returning from a show, introducing new chickens and so on can cause chickens to lose their appetite.
During very cold weather: extra protein and vitamins are required to produce heat during the cold.
Breeding Chickens: Specialist breeders feeds are available which contain extra vitamins.
Chicks and growers: have high nutritional needs. Multivitamins in the water are ideal for getting chicks off to a good start and helping them with the stress of moving accommodation as they grow.
Poorly birds: If birds are stressed, their immune system suffers which opens them up to picking up a disease. Multivitamins are useful to help birds get through sickness.