True metabolisable energy, heat increment and net energy values of two high fibre foodstuffs in cockerels.
Br Poult Sci
; 41(5): 625-9, 2000 Dec.
Article
en En
| MEDLINE
| ID: mdl-11201444
ABSTRACT
1. The yields of true metabolisable energy (TME) and net energy (NE) from chaya leaf meal and wheatfeed were mcasured in tube-fed cockerels. 2. TME, 5.76 MJ/kg, from chava leaf meal was lower than from wheatfeed, 8.39 MJ/kg. The total heat increment attributable to the feeding of chaya leaf meal was 1-7 times greater than that of wheatfeed. 3. The net efficiency of utilisation of ME (k) from chaya leaf meal was 0.64, while that from wheatfeed was 0.86. The role of different chemical composition, especially the high fibre content of the materials, is discussed. 4. The metabolisable energy and net energy values derived from chava leaf meal represented 0.34 and 0.23 respectively of its gross energy content. The combination of lower TME and lower net efficiency of utilisation led to chaya having a NE value, 3.86 MJ/kg, which was only 0.53 that of wheatfeed.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fibras de la Dieta
/
Pollos
/
Termogénesis
/
Metabolismo Energético
Límite:
Animals
Idioma:
En
Revista:
Br Poult Sci
Año:
2000
Tipo del documento:
Article
País de afiliación:
México