Nutrition of Feedlot Cattle
2019
Animals consume feed to meet their energy needs. Assuming the feed has a reasonable balance of nutrients, the major factor governing the amount of feed consumed is the energy need of the animal. This chapter seeks to present the equations and method of calculating predicted performance based on the net energy system. Energy has been mentioned in relation to feed intake and performance and, therefore, it is appropriate to discuss energy in the formulation of diets for feedlot cattle. General requirements for various minerals that may be deficient in feedlot diets. Calcium needs of feedlot cattle have been questioned recently and sources of calcium have been studied. The only vitamin of practical importance in feedlot diets is vitamin A. Growth stimulating implants are the most beneficial additives to be used in the feedlot. Melengestrol Acetate is useful to eliminate estrus behavior of feedlot heifers and thereby give some improvement in performance. Ionophores are added to improve feed efficiency.
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