Sistemas de terminação de cordeiros do grupo genético pantaneiro
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Data
2016-03-08
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Universidade Federal de Goiás
Resumo
Pantaneiro genetic sheep group are native to the Pantanal Biome, in the Midwest region of
Brazil, which is characterized by the production of meat. They are usually created under
pasture, and the lambs usually finished in confinement. But should be considered sustainable
and intensive finishing systems, adapted to the region. The aim of this study was to evaluate
four finishing systems, including the productive performance and economic results as
profitability indicators. Were used 54 lambs, 24 males and 30 females, wormed at weaning,
with initial weight of 16.70 kg, with a mean age of 74 ± 9 days. Finishing systems were;
Feedlot with corn silage (Zea mays) (CS) as roughage; Feedlot with mix corn silage and
Pigeon pea (Cajanus cajan cv Mandarin) as roughage (CPS); Integration Crop-Livestock
(ICL) grazing Brachiaria brizantha cv. BRS Piatã grass with Pigeon pea (Cajanus cajan cv
Mandarin) in succession to mixed cultivation; stockpiled pasture (SP) with Brachiaria
brizantha cv. BRS Piatã grass. All treatments the animals received energy-protein concentrate
supplementation (16% CP and 82% TDN) equivalent to 2% of body weight. The experimental
design was completely randomized in a factorial design, with four finishing systems and two
sexes. The variables were final weight (FW) and average daily gain (ADG), and economic
evaluation. Finishing systems under CS and ICL, obtained better productive performance not
differing significantly from the CPS, which in turn did not differ statistically from SP.
However, the economic evaluation demonstrated that the ICL and CPS systems were more
profitable in finishing lambs. The pasture system formed in Integration Crop-Livestock with
supplement of 2% of body weight, proved to be the most appropriate for the Midwest region
in the finishing of Pantaneiro lambs in the dry season.
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Palavras-chave
Confinamento , ILP , Ovinos , Ponto de nivelamento , Silagem , Vedação , Feedlot , ICL , Ovine , Economic equilibrium , Silage , Stock piling
Citação
VILLAFUERTE, S. G. E. Sistemas de terminação de cordeiros do grupo genético pantaneiro. 2016. 51 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Goiás, Goiânia, 2016.