Manganese is mostly present in the skeleton, pituitary gland and liver and is excreted through bile. This element is transported in the blood through a special protein called trans-manganin and participates in various enzyme systems such as arginase-phosphatase, etc. Its deficiency causes reduced growth, delay in bone formation, reproductive disorders and neurological complications. And in birds, it causes prosis, which appears by widening and changing the shape of the tibial-carpal joint. And in chickens, they come out of the egg shell later. And their body swells and their legs become short, and its deficiency causes ovarian activity disorder in female animals, which causes irregular ovulation, and in male animals, its deficiency causes sterility and also affects the nervous system, and its deficiency causes Animal imbalance and mismatch in animal movements