Author: Hassan IstaytiyyahPublisher:
ISBN:
Category : Broilers (Chickens)
Languages : en
Pages : 130
Book Description
Two experiments were conducted to study the effect of lowering the protein level, while giving a minimum essential amino acids requirement, and supplement fat on broilers' performance. The first experiment was carried during a starter period and was conducted on 320 day-old chicks to 28 days old, and divided into 4 dietary treatments, of eight replicates with ten chicks each. The dietary treatments were a) conventional type diet without additional fat, b) conventional type diet with 5% corn oil, c) low protein diet without additional fat, d) low protein diet with 5% corn oil. The second experiment was carried out during a grower-finisher period (28 to 49 days old), and was conducted under two temperature regimens: 32 +_ 1°C constant or 17 to 30°C cyclic. The same dietary treatments (but using grower requirements) and replicates number but of three chicks each were used as in the first experiment. Results of the first experiment indicated that the use of low protein had an adverse effect on broilers' performance, and that supplemental fat to conventional diets improved conversion rate and body weight gain significantly (P