IMPACT OF SEX AND BIRD’S LOCATION INSIDE A LOCAL POULTRY HOUSE ON SOME PRODUCTIVE TRAITS THROUGH DIAGNOSTIC ENVIRONMENTAL MONITORING SYSTEM OF ROSE BROILER 308

This Study was conducted in a closed Poultry house, Poultry Research Station, Office of Agricultural Research, Ministry of Agriculture, Baghdad, Iraq, for the period from 2/9 to 14/03/2016 for total rearing period of 35 days. To diagnose and monitoring of environmental factors such as temperature, humidity , density , and levels of carbon dioxide inside the house during the winter season and its impact on the productive performance of broiler chickens Rose 308 breed . The dimensions of the house were (length 35 m x width 7.5 m x Height 2.5 m) by total space volume 3656.25 m. The ventilation system in the house was (traditional mode 1 of negative pressure type). The house is totally closed, small fans for minimum ventilation in winter is functioned, and large fans for ventilation in the evaporative cooling operation is used in summer. Sometimes in the summer the need for greater ventilation rates increases so both types of fans are used. 1000 sexed birds were used in this experiment of Ross broiler 308 strain, imported through commercial hatchery in Abu Ghraib. The house was divided into three thermal Zones in order to find out whether heterogeneity is existed in environmental conditions of the house especially at birds level , as a result the impact of homogeneity in the weights of marketed birds. The treatments have been distributed into 32 rearing cages, 16 of them are male and other 16 are female. Two designs were used in this experiment the first is the complete randomized design (CRD) to find out which Zone is better in terms of feed intake, feed conversion efficiency and body weight gaining under the prevailing inside environmental conditions. The second design is complete randomized block design (CRBD) to determine which side (Block) of that particular Zone is better least significant differences (L.S.D) at 0.05 levels were used to compare the mean of treatments. CONCLUSION The results showed that males were superior in performance in comparison to females under the internal environmental Conditions. There were minor numerical (UN significant) differences in productivity traits concerning the sex within the Zones in some weeks, and significant in others. 24 hour Data recording collecting for 35 day showed that Environmental Conditions were heterogeneous among the three Zones of the House, as a result the treatments showed different performance according to the location in terms of productivity traits, such as body weight, body weight gain, feed intake and feed conversion ratio, due to the presence of cool air leaks into the house at the front, end of the house and its sides especially when fans are on. along with dead Air pockets that were identified in many places in the middle of the house create a combination of considerably high temperature with low relative humidity in Zone No 2 lead to make this Zone the one that had the best productive traits in comparison with the other two zones . not to mention the high level of Carbone Dioxide inside the house especially in the beginning of the Rearing period which exceeded 9000 PPM . that indicate mistakes in determining the correct ventilation Ratio and the necessity for more (Minimum winter ventilation) even if it was at the expense of the targeted temperature and Relative Humidity for the house. 1 Traditional mode in terms of how air moves which is from one side to another (lateral). ISSN: 2277-9655 [Chalabi* et al., 5(10): October, 2016] Impact Factor: 4.116 ICTM Value: 3.00 CODEN: IJESS7 http: // www.ijesrt. com © International Journal of Engineering Sciences & Research Technology [268]