Dry matter intake and digestibility of rations replacing concentrates with graded levels of Enterolobium cyclocarpum in Pelibuey lambs.
Trop Anim Health Prod
; 45(2): 577-83, 2013 Feb.
Article
em En
| MEDLINE
| ID: mdl-22996698
ABSTRACT
The aim of the study was to evaluate the effect of graded levels of Enterolobium cyclocarpum pods in the ration on feed intake and digestibility by Pelibuey lambs. Five dietary treatments were imposed where ground pods replaced concentrate diet at 0, 20, 30, 40 and 50 % of dry matter (DM), respectively. The concentrate portion was composed of ground sorghum, soybean meal, cane molasses and minerals. Five entire Pelibuey lambs with initial bodyweight 34 ± 2 kg were allocated in the treatments in a 5 × 5 Latin square design. Values of dry matter intake (DMI) and dry matter (DMD) and organic matter (OMD) digestibility were measured and metabolisable energy intake (MEI) estimated. Rumen degradation constants for E. cyclocarpum were also measured. There were no differences (P > 0.05) in average DMI (86.6 g/kg(0.75)) and OMI (81.2 g/kg(0.75)) among treatments. As the level of incorporation of E. cyclocarpum pods increased, voluntary DMI and OMI increased, whereas apparent DMD and OMD decreased linearly. Average digestible DM (65 g/kg(0.75)) and OM (61 g/kg(0.75)) intakes were similar (P > 0.05) among treatments. Similarly, MEI (0.976 MJ ME kg(0.75)/day) was not different (P > 0.05) among treatments. The potential rumen degradation (A + B) of ground pods of E. cyclocarpum was 866.4 g/kg DM. Ground pods of E. cyclocarpum can be employed for lamb feeding up to 50 % of the ration, without affecting DMI, DM apparent digestibility and MEI.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Carneiro Doméstico
/
Digestão
/
Comportamento Alimentar
/
Fabaceae
/
Ração Animal
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Criação de Animais Domésticos
Tipo de estudo:
Evaluation_studies
Limite:
Animals
País/Região como assunto:
Mexico
Idioma:
En
Revista:
Trop Anim Health Prod
Ano de publicação:
2013
Tipo de documento:
Article