Efecto de la restricción alimenticia cuantitativa y cualitativa sobre la productividad e incidencia de síndrome ascítico en pollos machos COBB 500 a 2664 MSNM

Abstract

In the present research, work it was evaluated the quantitative and qualitative feed restriction effects over the productivity and incidence of ascites syndrome (AS) of broiler male chickens of Cobb 500 to 2664 msnm until 49 born days. It was used 525 chickens that were distributed in seven treatments of three repetitions each one. Each experimental part included 25 chickens. The treatments were the following: T1) 100% nutrients – ad libitum T2) 97.5% ** nutrients – 97.5% consumption T3) 97.5%* nutrients -95.0 % consumption, T4) 97.5%** nutrients – 92.5% consumption T5) 95.0 % *** nutrients – 97.5% consumption T6) 95.0%*** nutrients -95.0% consumption and T7) 95.0% *** nutrients – 92.5% consumption. The taking dates started at the 11 day. The statistical analysis showed some differences (p<0.05) favorable to the studied treatments versus the control treatment, getting as a result the regulation and modification of the growth curve improving the productive parameters and reducing the incidence of AS. The control treatment showed a higher consumption food and higher incidence of ascites syndrome (w<0.05) showing as result that restriction program minimize this problem, but optimize the cost production to high altitudes (p<0.05). It was observed difference is seen in the final weight between T1 and T7 (p <0.05), this difference is evident because the lower nutritional density (95.0%) and restriction of consumption (92.5%) despite the fact that from day 43 to 49 will feed was offered to all experimental units favoring compensatory growth in most treatments, except T7 since the same restriction was more severe, which not equaled T1 body weight.