The author is always willing to discuss matters of feeding with fanciers who may have a favourite nutrient. This liquid is used to supply the drinking water for the birds. A fresh solution is made up of each day and drinkers are cleaned and replenished with fresh solution each day, as a matter of good hygiene. It is also important as a general principle to ensure that all utensils and equipment such as nest-boxes are kept in a high state of cleanliness. Where practicable, boiling for several minutes in a suitable disinfectant solution is desirable.
Some observations made during the course of the trials are particularly noteworthy.
Levels of fertility and hatching rate were excellent, this even applied to older hens whose age ranged from four to seven years. The majority of these birds slimmed down, became active fliers and returned to breeding. The occurrence of adult birds failing to feed their chicks was almost eliminated. This in itself is a very important feature, since it does not encourage the multiplication of bacteria. Within minutes of introducing the birds to the feeders containing Pro-mineral, they were sampling it with obvious enjoyment.