The growth of broiler chickens fed low‐protein diets containing triammonium citrate, diammonium hydrogen citrate and autoclaved dried poultry manure

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Abstract
Three experiments were carried out using male broiler chicks from 1 to 3 weeks of age. The birds were housed in individual metabolism cages at 1 week of age, having previously been in tiered brooders. In experiment 1, 36 birds were offered one of six experimental diets based on glucose‐ and cellulose‐diluted commercial broiler mash. The six diets were supplemented with graded levels of triammonium citrate (TAC) at the expense of cellulose such that diet 1B contained no TAC and diet 1F contained 6.4% TAC. In experiment 2, 72 birds were offered one of six diets, similar to those used in experiment 1 with the exception that they were supplemented with graded levels of diammonium hydrogen citrate (DAHC). In experiment 3, 72 birds were offered one of six diets which were based on the same diluted broiler mash but which had been supplemented with graded levels of autoclaved dried poultry manure (ADPM) at the expense of glucose. Diet 3B contained no ADPM whereas diet 3F contained 20% ADPM. All birds were weighed at 2 and 3 weeks of age and their food consumptions over these periods were recorded. Their growth was compared with that of birds fed the undiluted commercial broiler food. All birds of experiment 1 (TAC‐supplemented diets) and experiment 2 (DAHC‐supplemented diets) showed significantly poorer growth rates than the control birds. However, birds of experiment 3 (ADPM‐supplemented diets) grew as well as the control birds.

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