Izvorni znanstveni članak
https://doi.org/https://doi.org/10.5513/JCEA01/27.3.5048
Energy and nutrient utilisation of laying hen diets containing graded levels of supplementary xylanase
Isobel M. WHITING
; The National Institute of Poultry Husbandry, Harper Adams University, Shropshire, UK
Stephen P. ROSE
; The National Institute of Poultry Husbandry, Harper Adams University, Shropshire, UK
Alexander M. MACKENZIE
; The National Institute of Poultry Husbandry, Harper Adams University, Shropshire, UK
Ahmed M. AMERAH
; Danisco Animal Nutrition, Marlborough, Wiltshire, UK
Vasil R. PIRGOZLIEV
; The National Institute of Poultry Husbandry, Harper Adams University, Shropshire, UK
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* Dopisni autor.
Sažetak
The effect of graded levels of exogenous xylanase (XYL) at 0, 1500, 2000 or 2500 xylanase units (XU/kg) in laying hen diet containing 150 g/kg wheat distillers dried grains with solubles (DDGS) was examined. A total of 72, twentytwo-week-old, Hy-Line Brown laying hens were allocated to 24 cages, three birds in a cage. Each diet was fed for nine days to six cages following randomisation. Overall, supplementary XYL increased (P < 0.05) dietary apparent metabolizable energy (AME), nitrogen corrected AME (AMEn) and nitrogen retention coefficient. For every 100 XU, dietary AME and AMEn increased by 0.020 MJ and 0.018 MJ, respectively. As expected, there were no differences in bird growth or egg production variables. Further research is warranted to study the impact of graded levels of XYL in laying hen diets formulated to contain greater DDGS inclusion.
Ključne riječi
wheat DDGS; graded levels xylanase; metabolisable energy; laying hens
Hrčak ID:
351478
URI
Datum izdavanja:
1.10.2026.
Posjeta: 0 *