DESEMPENHO DE BOVINOS MESTIÇOS LEITEIROS ALIMENTADOS COM DIFERENTES NÍVEIS DE CONCENTRADO NA RECRIA E TERMINAÇÃO
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Data
2009-07-30
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Universidade Federal de Goiás
Resumo
The objective of the experiment was to evaluate the feedlot performance of
steers with dairy origin, which during the growing phase were supplemented on
pasture with two levels of concentrate (high=1% or medium=0,5% BW), and that
during finishing were submitted to two concentrate levels (high=80% or
medium=50%), resulting into four feedlot treatments, THH, THM, TMH and TMM.
Steers from treatments that received higher supplementation level during growth,,
were heavier at beginning and stayed less time in feedlot to reached slaughter
weight. Average daily dry matter intake (DMI) for TAA was higher than for TMM
animals, both not differing from TAM and TMA. DMI expressed as percentage of
weight, average daily weight gain and feed conversion were similar among
treatments. Animals supplemented with 1% during growing phase showed higher
(p<.05) initial thoracic perimeter and lower gain of this measure during feedlot,
resulting no difference among treatments at the end. Animals that received lower
level of supplement during growing phase had lower rump height at the beginning
and showed higher gain for this measure during feedlot. Final rump height was
higher (p<.05) for TAM and TMM animals
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Citação
FREITAS NETO, Marcondes Dias de. PERFORMANCE crossbred dairy cows fed
DIFFERENT LEVELS OF CONCENTRATE IN THE growing and finishing. 2009. 51 f. Dissertação (Mestrado em Ciências Agrárias - Veterinaria) - Universidade Federal de Goiás, Goiânia, 2009.