Animal Life-cycle Feeding and Nutrition by Tilden Wayne Perry

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In diabetes mellitus the zinc content of the pancreas is about one-half of normal, which suggests that zinc may be involved in storage and/or use of insulin. 33%. During thiamin deficiency the zinc levels of blood, nails, and skin are lowered. A deficiency of zinc causes depressed phosphatase and catalase activity of liver and kidneys. B. Deficiency A zinc deficiency in pigs causes many symptoms. The skin over many parts of the body, but particularly the underside, becomes thickened and rough, and a straw-colored liquid exudes from open sores.

In addition, copper is needed for the absorption of iron across the wall of the intestine into the bloodstream by apparently converting ferrous into ferric iron. It also appears that copper is involved in red cell maturation since a smaller number of red cells are produced if copper is deficient. In addition to its role in red blood formation, copper is involved in bone formation. Bone abnormalities have been reported in young horses as a result of copper deficiency. A deficiency adversely affects collagen formation in bone.

A. Deficiency Cobalt deficiency symptoms are actually vitamin B 1 2 deficiency symptoms. Such symptoms become apparent only when ruminants have been subjected to a cobalt-deficient regimen for a period of time because vitamin B 1 2 can be stored in the liver. Vitamin B 1 2 is the only one of the B vitamins that can be stored in more than token quantities. Ruminants fed cobalt-deficient diets show loss of appetite, reduced gains, and even loss of weight to the point of emaciation. Such animals show all the characteristics of anemia, such as bleached-out areas around 40 4.

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