Effect of multi-phase feeding on growth, main carcass parts, and nitrogen content in faeces of broiler chickens.

The objective of this paper is to investigate the effect of multi- phase feeding, i.e. the effect of different mash feeds with multi-phase protein reduction, on growth, main carcass parts and nitrogen content in faeces of broiler chickens. The experiment was conducted on 1216 chickens of Ross 308 provenience, separated by sex. The experiment lasted for 42 days and the standard technology was used. The groups differed in a type of a mash (treatment) given in the starter period, as follows: T1 (control group) was given a mash with 23% crude proteins from day 1 to day 21; T2 - a mash with 23% proteins from day 1 to day 7, followed by a mash with 21.5% proteins given from day 7 to day 21; T3 - a mash with 23% proteins from day 1 to day 14, followed by a mash with 21.5% proteins given from day 14 to day 21; T4 - mashes changed every three days, having 23%, 22.55%, 22.10%, 21.65% , 21.20%, 20.75% and 20.30% of crude proteins, respectively. Slaughtering performance was investigated on a total of 64 broiler chickens, with eight male and eight female chickens used separately for each of the treatments. Nitrogen content in faeces was determined using the pooled sample of faeces. The obtained results showed some differences in the average daily growth of the male and female chickens when comparing the control (T1) and the experimental groups. Those differences were not statistically significant. However, when comparing the male-only groups, it was determined that the experimental group T4 had statistically significantly higher growth than T2 and T3 group. The effect of the multi-phase feeding programme on the breast, thigh and drumstick share of both male and female broilers was not significant. The applied multi-phase feeding programmes resulted in a reduction in the nitrogen content in the faeces. Considering the obtained results, it can be concluded that the multi-phase feeding programmes had no negative effect on the growth and slaughtering performances

[1]  M. Sahraei.  IMPROVEMENT PRODUCTION EFFICIENCY AND CARCASS QUALITY THROUGH FEED RESTRICTION PROGRAMS IN BROILER CHICKENS , 2013 .

[2]  M. Rezaei,et al.  Effect of diet dilution at early age on performance, carcass characteristics and blood parameters of broiler chicks , 2010 .

[3]  H. Rostagno,et al.  Effects of different nutritional plans on broiler performance , 2009 .

[4]  Z. Pavlovski,et al.  MAJOR CARCASS PARTS OF BROILER CHICKEN FROM DIFFERENT GENOTYPE, SEX, AGE AND NUTRITION SYSTEM , 2009 .

[5]  J. Carey,et al.  Effect of Continuous Multiphase Feeding Schedules on Nitrogen Excretion and Broiler Performance , 2008 .

[6]  C. Coufal.  Quantification of litter production and the fate of nitrogen in commercial broiler production systems , 2005 .

[7]  Nasril.  Continuous multi-phase feeding of broiler chickens , 2005 .

[8]  E. R. Miller,et al.  Increasing amino acid density improves live performance and carcass yields of commercial broilers , 2004 .

[9]  P. Waldroup,et al.  Effects of Dietary Nutrient Density on Performance and Carcass Quality of Male Broilers Grown for Further Processing 1 , 2004 .

[10]  R. M. Eits.  Modelling responses of broiler chickens to dietary balanced protein , 2004 .

[11]  K. Bregendahl,et al.  Effect of low-protein diets on growth performance and body composition of broiler chicks. , 2002, Poultry science.

[12]  J. A. Townsend,et al.  Growth performance of broilers using a phase-feeding approach with diets switched every other day from forty-two to sixty-three days of age. , 2002, Poultry science.

[13]  P. Ferket,et al.  Nutritional strategies to reduce environmental emissions from nonruminants , 2002 .

[14]  J. Emmert,et al.  Efficacy of phase-feeding in supporting growth performance of broiler chicks during the starter and finisher phases. , 2000, Poultry science.

[15]  G. Ware,et al.  Further studies on the influence of genotype and dietary protein on the performance of broilers. , 1998, Poultry science.

[16]  R. Gates,et al.  The effect of dietary protein and phosphorus on ammonia concentration and litter composition in broilers. , 1998, Poultry science.

[17]  P. Waldroup,et al.  Changing Time of Feeding Starter, Grower, and Finisher Diets for Broilers 3. Birds Grown to 3.3 kg , 1997 .

[18]  P. Waldroup,et al.  Effect of Dietary Amino Acid Level on Change from Starter to Grower Diets for Broiler Chickens , 1993 .

[19]  E. Moran,et al.  Live Performance and Carcass Yield of Male Broilers from Two Commercial Strain Crosses Receiving Rations Containing Lysine Below and Above the Established Requirement Between Six and Eight Weeks of Age , 1991 .