Anejo sanitário e biosseguridade em granjas de frango de corte

Abstract

During the 440h internship at MBRF in Mineiros-GO, I assisted field veterinarians and zootechnicians on integrated broiler farms. Daily routine covered pre-housing management: setting up chick guards, adjusting feeders at ground level and drinkers 5cm above back height, and managing transverse curtains to ensure air renewal and remove ammonia. I checked ventilation flow, pre-heating, paper distribution on litter, and lot partitions. Post-housing visits verified equipment height, down, navel healing, activity level, and injuries. Sanitary monitoring included necropsies to determine cause of death and disease diagnosis, examining footpads, bursa of Fabricius, liver, intestine, air sacs, and droppings. I followed biosecurity: rodent and darkling beetle control every 7 days, traffic control for people/vehicles, sanitary barriers, footbaths, daily mortality logs, weighing, and water quality. I performed Prope - drag swabs for Salmonella - on litter, silo, floor, and feeders at 19 days and after downtime. Pre-slaughter involved necropsies and scoring skin lesions, footpad dermatitis, and arthritis for carcass quality. I instructed farmers on 12-15 day downtime: full cleaning, weeding, 1m firebreaks around houses, disinfection, and max 12h feed withdrawal before catching. Visits followed the company protocol: downtime check, pre-housing, post-housing, routine, Prope collection, pre-slaughter, and fasting guidance. The literature review showed that biosecurity reduces entry and spread of pathogens like Avian Influenza, Newcastle, and Salmonella. Key actions include isolation, traffic control, sanitation, downtime, pest control, and staff training. Poor management increases outbreaks, costs, and zoonotic risk. Effective biosecurity improves poultry health, performance, and food safety.