Effects of Vitamin B1 / Thiamin deficiency
Nervousness, anorexia, ruffled feathers, leg weakness and an Unsteady gait can occur. Paralysis (convulsions with head retraction) called polyneuritis and star-gazing (head retracted due to paralysis of the anterior muscles of the neck) can occur in young birds. Adults may have a blue comb, a decrease in respiration rate and lowered body temperature.
Treatment & Control of Vitamin B1 / Thiamin deficiency
Prevention
Quality control of the feed. A correct level drug will help prevent the disease.
Treatment
Alter the B1 level or drug level in the feed. Since most grains are high in B1, it does not need to be added to the diet. Amprol, a common anticoccidial mediation, can bind thiamine.
Maybe buying some Corid - adding Vit B1 drops to what mashy food she can get down. It appears Vit B1 is the missing link