Alves, G.R. and Fontes, C.A.de A. and Processi, E.F. and Fernandes, A.M.
(2015)
Performance and digestibility of steers fed by-product of fresh passion fruit or sorghum silage, with and without concentrate supplementation.
Revista Brasileira de Zootecnia, 44 (9).
pp. 314-320.
Abstract
The objective of this study was to evaluate the nutritive value of passion fruit by-product for cattle, contrasting
the results with those found with sorghum silage. Four treatments were then constituted, comprising the combinations of the
two roughages and the two levels of supplementation (with or without), in a completely randomized design with four animals
per treatment. The considered variables included: feed intake, digestibility coefficients of the diets, and live weight gain of
the animals. The experimental period lasted 70 days, preceded by a standardization period of 30 days. Chromium oxide was
utilized to estimate the fecal output, in the digestibility trial. Treatments were compared by means of three orthogonal contrasts:
between the two roughages and between the two concentrate levels within each roughage. Animals fed passion fruit by-product
showed higher feed intake (total, per 100 kg of live weight (TLW), and per unit metabolic size) and had higher TLW gain than
those fed sorghum silage (1.304 kg vs. 0.134 kg). The coefficients of apparent digestibility of dry matter (DM), organic matter
(OM), and crude protein (CP) and the digestibility coefficient of neutral detergent fiber from passion fruit by-product were high,
and much higher than those from sorghum silage. The concentrate supplement did not improve the TLW gain of animals fed
passion fruit by-product and had a limiting effect on the digestibility coefficients of the diet. The concentrate supplement had a
positive associative effect on intake and digestibility coefficients of DM, OM, and CP from sorghum silage. The by-product of
fresh passion fruit is an excellent food for growing cattle as it provides high intake levels and weight gains, even when supplied
as the only feed.
| Item Type: |
Article
|
| Uncontrolled Keywords: |
Byproduct, positive associative effect, reduction of digestibility, weight gain |
| Author Affiliation: |
Universidade Federal de Mato Grosso, Departamento de Zootecnia, Rondonópolis, MT, Brazil |
| Subjects: |
Plant Production |
| Divisions: |
Sorghum |
| Depositing User: |
Mr T L Gautham
|
| Date Deposited: |
04 Dec 2015 09:21 |
| Last Modified: |
04 Dec 2015 09:21 |
| URI: |
http://eprints.icrisat.ac.in/id/eprint/14082 |
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