Subscribe Now Subscribe Today
Science Alert
Curve Top
International Journal of Poultry Science
  Year: 2011 | Volume: 10 | Issue: 2 | Page No.: 87-92
DOI: 10.3923/ijps.2011.87.92
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Productive Performance of Four Commercial Broiler Genotypes Reared under High Ambient Temperatures

Waleed M. Razuki, S.A. Mukhlis, F.H. Jasim and R.F. Hamad

An experiment was conducted to study the effect of High Ambient Temperature (HAT) on performance of four genotypes of broiler [Rose (RS); Cobb (CB); Hubbard (HB) and Lohmann (LN)]. A total of 700 day-old unsexed broiler chicks were used. Broiler chicks were obtained from four commercial parent stocks all bred in Iraq. Chicks (175 per genotype), 25 per pen, were housed in hall contained 28 pens (seven pens per genotype). Individual Body Weight (BW), in males and females, was determined at hatch and weekly then after at the end of experiment at 49 days of age. Feed Consumption (FC) and Conversion Ratio (FCR) and mortality percentage were determined per pen. All four genotypes were received starter diets (3005 Kcal/Kg feed; 22% CP) from one day to 28 days of age and grower diets (3059 Kcal/Kg feed; 20% CP) from 29 to 49 days of age. The genotype group differed significantly in BW and body weight gain (BWG), FC, FCR and mortality. The hot season effect was largest on BWG form 29-49 days of age along with reduction in FC and partially in FCR. The reduction in BW and BWG in both sexes (males and females) due to HAT appeared to be independent of sex. The greater reduction in FC and FCR was occurred in last period of study (42-49 days of age). This study suggested that standard broiler genotypes must be tested in our hot climates in summer season in order to find the one most suited to perform better in these conditions. Furthermore, it was prefer to marketing broilers at early ages (less than 42 days of age) to avoid the deteriorate effect of HAT on productive performance of broilers.
PDF References Citation Report Citation
  •    Embryonic Development and Early Juvenile Growth of Nigerian Local Chickens in Crosses with Exotic Broiler Breeder under Humid Tropical Conditions
  •    Water Supplementation of Moringa oleifera and its Effect on Performance, Blood Antioxidant and Immune Response of Two Broiler Breeds
  •    Effect of Breed, ApoVLDL-II Gene Polymorphism and Metabolic Biochemical Markers on Growth and Body Composition Traits in Commercial Broiler Breeds
  •    Effects of Genetic Strain and Protein Concentrate Removal from Finisher Ration on Performance and Carcass Parameters of Broilers Reared under Hot Climate
How to cite this article:

Waleed M. Razuki, S.A. Mukhlis, F.H. Jasim and R.F. Hamad, 2011. Productive Performance of Four Commercial Broiler Genotypes Reared under High Ambient Temperatures. International Journal of Poultry Science, 10: 87-92.

DOI: 10.3923/ijps.2011.87.92






Curve Bottom