Paper Information

Journal:   IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE)   2007 , Volume 37 , Number 6; Page(s) 1059 To 1066.
 
Paper: 

THE EFFECT OF DIETARY ENERGY LEVEL AND AMINO ACID PROFILES ON PERFORMANCE IN BROILER CHICKS

 
 
Author(s):  DASTAR B. *, MOSTAFALOU Y., HASANI S.
 
* AGRICULTURAL SCIENCES & NATURAL RESOURCES UNIVERSITY OF GORGAN
 
Abstract: 
A factorial experiment was conducted to compare the effects of 2 dietary energy levels (3100 and 2900 Kcal/Kg) and 3 amino acid profile son Cobb broilers performance and litter quality during the starter and grower phases. The two dietary amino acid profiles were based on amino acid recommendations from the National Research Council (NRC, 1994) or based on phase-feeding (PF) approach. In a third amino acid profile, chickens were fed NRC recommendations during the starter period but placed on a PF system during the grower period. Dietary energy level had a significant effect on broiler performance parameters, litter nitrogen and abdominal fat percentage (P<0.05), but no significant effect on other carcass compositions (P>0.05). Dietary amino acid profile did not have a significant effect on broiler performance and carcass characteristics (P>0.05).
Crude protein intake and litter nitrogen percentage were lower in broilers fed diets formulated up on PF approach rather than based on NRC recommendations (P<0.05). Lower feed consumption per Kg of weight gain associated with PF approach in, dictated that some benefits may be availed.
 
Keyword(s): AMINO ACID, ENERGY, PHASE-FEEDING, BROILER
 
References: 
  • ندارد
 
  Persian Abstract Yearly Visit 26
 
Latest on Blog
Enter SID Blog