Vitamin A- may be referred to as beta-carotene (a precursor of vitamin A) and is a Fat soluble vitamin
Specific areas if involvement – Normal eye function. Maintenance of tissue integrity, especially reproductive, urinary and nervous systems. Correct functioning of the immune system. My be stored in the liver and fatty tissues.
Signs of deficiency or excess – Anorexia (poor appetite) reduced growth. Night blindness. Continuous tear production. Keratinisation of the eye. Poor hoof and coat condition. Infertility. Respiratory and nervous disorders. Salivary gland abscesses.