Breeder hen micronutrient levels must be provided in adequate amounts, as a deficiency in
virtually any mineral or vitamin can impair embryonic development and hatchability. As …

Besides carbohydrates, proteins, and fats, there are many nutrients in the chicken's diet that
are necessary in smaller quantities to enable the bird to live, produce meat and eggs …

Chick quality is dependent upon conditions in the laying house, egg handling systems, and
the hatchery. If any of these areas are sub-optimal, chick quality, in addition to hatchability …

The role of minerals in the diet for chickens is of prime importance although it often receives
but secondary consideration. Laying hens not only have the usual requirements for growth …

This review is divided broadly into two parts, one on the role of vitamins and the other on that
of minerals in poultry nutrition. Symptoms of avitaminosis-A are dealt with. The vitamin A …

Laying hens were fed deficient diets, unsupplemented or supplemented with one, two, or
four times the National Research Council requirement level of vitamin A for 27 wk. Vitamin A …

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THE shortage of animal protein concentrates during the war years and their replacement by
vegetable protein supplements containing much less calcium and phosphorus accompanied …

The essential mineral elements are as vital as any of the other nutritive factors which
constitute a complete ration for chickens. The requirements of chickens for these minerals …

A total of 3,888 broiler chicks (Vantress× Arbor Acre) were used in a study involving 81
dietary treatments to determine the interactions among vitamins A, D 3, E, and K in broiler …