Abstract

MORENO POVEDA, Jenny Marcela  and  RIANO JIMENEZ, Fallon Yamile. Effect of Supplementation with wilted and silaged Sambucus nigra on productive and economic parameters of rabbits in fattening phase. rev.udcaactual.divulg.cient. [online]. 2020, vol.23, n.1, e1468.  Epub June 30, 2020. ISSN 0123-4226.  https://doi.org/10.31910/rudca.v23.n1.2020.1468.

In order to reduce the feeding costs in cuniculture, the inclusion of wilted and silaged elder was evaluated on the productive and economic performance of rabbits in the fatting phase. 27 rabbits (crosses between Chinchilla, Californian and New Zealand) were selected with an average initial weight of 1467,6 ± 271,1g. They were divided and randomly distributed in each of three treatments, control (100% balanced feed), silage (85% balanced feed + 15% elder silage) and wilted (88% balanced feed + 12% wilted elder). During 28 days, weight gain, feed conversion ratio (FCR), carcass yield and viscerosomatic index were evaluated and analyzed through a variance analysis in a complete random design. Gross margin of partial income (GMPI) was calculated through a partial budget analysis for the sale of the product in vivo and carcass. The group that received the silage showed greater weight gain (1040.4 ± 75.2g) and higher intake (12.5 ± 0.3kg MS / cage), than control group (P˂0,05), but FCR was not different between these groups (P˂0.05). No statistical differences were observed in the remaining productive parameters (P>0,05). Silage diet presented the highest cost, but at the same time it produced the highest GMPI, for sale in vivo (13%) and carcass (9%). Silage elder can be considered as a feeding alternative, improving the productive parameters and the GMPI.

Keywords : Alternative ingredients; elder; rabbit production; browse plants; production costs.

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