Performance of broiler chickens reared at two stocking densities and coir litter with different height

Abstract

The objective of this study was to evaluate the performance of broiler chickens reared at two stocking
densities and coir litter with different height. A total of 522 one-day male chicks were distributed in a completely randomized
design in a 3×2 factorial arrangement, with three litter height (5, 10 and 15 cm) and two densities (10 and 13 birds/m2
),
with six triplicates. The experimental period lasted 42 days, evaluating pH and litter moisture; performance; carcass traits;
bone quality; and intensities of breast, hock and footpad lesions in the birds. Regarding the effect of density, a significant
influence was observed only on performance, wherein the birds reared at the density of 13 birds/m2
showed lower intake
and weight gain and better feed conversion than those reared at the density of 10 birds/m2
. Irrespective of the rearing density
and litter height, the hock and footpad lesions were frequent, and with severe intensity. It is concluded that coir with 5 cm
height can be used to housing up to 13 birds/m2
; however, the high rate of hock and footpad lesions makes the use of coir in
the evaluated form unfeasible.