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Tese
Sistemas de alimentação na terminação de bovinos.
The objective of this work was to evaluate the consumption, performance, carcass characteristics, ingestive behavior and blood metabolic profile as a function of finishing strategies of cattle in pastures in the dry season, using whole or ground corn grains and different forms of adaptation to di...
Autor principal: | Mendes Filho, Gilson de Oliveira |
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Grau: | Tese |
Idioma: | pt_BR |
Publicado em: |
Universidade Federal do Tocantins
2023
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Assuntos: | |
Acesso em linha: |
http://hdl.handle.net/11612/6081 |
Resumo: |
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The objective of this work was to evaluate the consumption, performance,
carcass characteristics, ingestive behavior and blood metabolic profile as a
function of finishing strategies of cattle in pastures in the dry season, using
whole or ground corn grains and different forms of adaptation to diets. The
experimental design was a completely randomized design with seven
treatments and nine replicates (animals), evaluating the quantitative
characteristics of the carcass, physical composition of the carcass, average
daily gain (GMD), blood parameters and three repetitions (pickets) for
consumption Of dry matter of the concentrate (CMSc), seven treatments and
three replicates (animals) were evaluated for the study of ingestive behavior.
The experimental period was 84 days. Non-orthogonal contrasts were
performed to evaluate responses to treatments. When comparing the supply of
supplements at will with restricted supply, slaughter weight (PA) (P = 0.01),
warm carcass weight (PCQ) (P = 0.03), cold carcass weight (PCF) ( P = 0.01),
muscle (M) (P = 0.02), fat (G) (P = 0.02), GMD (P = 0.07), WHR (P = 0.03) (P =
0.02), CMSc, kg / day (P = 0.05), were higher when the animals were fed
supplements at will. The animals kept under conditions of confinement differed
statistically in the levels of glucose (P = 0.05), cholesterol (P = 0.03) and
triglycerides P (= 0.02) in relation to those kept on pasture, with animals grazing
with the highest concentrations. The use of higher levels of supplementation
regardless of the type of processing in the dry season reduces grazing time,
rumination and increases feeding, leisure and other activities. |