Effects of early dietary energy and protein dilution on growth performance, nutrient utilization and internal organs of broilers

Italian Journal of Animal Science

Kaihua Huang¹  Haiming Yang¹  Wei Wang¹  Wenjia Fan¹  Tianli Jia¹  Zhi Yang¹  Zhiyue Wang¹ 

[1] College of Animal Science andTechnology, Yangzhou University;

关键词: Broiler;    Dilution;    Energy;    Protein;    Growth performance;   

DOI  :  10.4081/ijas.2015.3729

来源: DOAJ

【 摘 要 】

This experiment aimed to investigate the effects of early dietary energy and protein dilution on growth performance, nutrient utilization and internal organs of broilers. Of Arbor Acres, 1200 day-old male chicks were selected and randomly distributed to 16 experimental groups with factorial arrangement (4×4) including 4 levels of energy dilution and 4 of protein dilution (8 to 14 d of age). Birds were fed the same diets during the other period. Experiment of nutrient utilization was carried out 11 to 14 d of age. At 14 d, 1 bird/pen was slaughtered to determine internal organs. From 8 to 14 d, average daily feed intake (ADFI) of treatments protein diluted 10% was significantly less than of treatments protein diluted 20% (P<0.05). Feed conversion ratio (FCR) of treatments protein diluted 30% and energy diluted 15% was significantly less than other treatments (P<0.05). From 15 to 42 d, ADFI of treatments protein diluted 20% was significantly less than of treatments protein diluted 0 and 10% (P<0.05). At 42 d, body weight (BW) of treatments energy diluted 10% was more than of treatments energy diluted 0 and 15% (P<0.05). The FCR of treatments protein diluted 20% was significantly less than of treatments protein diluted 0 and 10%, and that of treatments energy diluted 15% was significantly more than other treatments (P<0.05). Data indicated that early dietary energy and protein dilution affected BW, ADFI and FCR, and the optimum treatment was 10% of dietary energy and protein dilution from 8 to 14 d.

【 授权许可】

Unknown