Estudo da eficiência do calcário calcítico, do carbonato de cálcio e do óxido de magnésio no controle do ph ruminal
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Data
2003-06
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Editor
José Henrique Stringhini
Resumo
The experiment was carried out in the Animal
Production Department of the Veterinary School (Goiás
Federal University), in order to study the behavior of
ruminal pH, blood levels of glucose and urea. Sixteen male
Santa Inês sheep were distribuled individually in metabolic
crates, equiped with waterer and feeder, for forage and
concentrate. The treatments were four isoproteic and
isoenergetic concentrates containing 16% of crude protein,
and 3,300 Kcal of digestible energy with levels of 0% in
control diet, 1% calcitic limestone, 1% calcium carbonate
and 1% of magnesium oxide. The experiment was designed
in a completely randomized split-splot model in a period of
nine days, seven days for adaptation and two for collection,
with four treatments and four replicates of one animal each
constitution. The averages of the treatments were compared
by the Scott-Knott´s test. The pH of the ruminal fluid at zero
hour after a concentrate intake, for treatments were 7.65;
7.88; 7.32 and 7.66 and for four hours 6.42; 6.65; 7.56 and 6.56 respectively. The average levels of urea for zero hour
were 24.83; 26.86; 21.96 and 28.53 mg/100 mL and for four
hours were 27.20; 28.99; 23.65 and 48.07 mg/100 mL,
respectively for all treatments. The average values of blood
glucose for zero hour were 67.07, 65.08; 60.51 and 62.22 mg/
100 mL and for four hours were 74.49; 65.85; 70.70 and 66.51
mg/100 mL, respectively. The calcium carbonate was the
most efficient for the ruminal pH control, four hours after a
concentrate intake.
Descrição
Palavras-chave
Concentrados, Dietas, Produção de saliva, Proteína bruta, Tamponante, Concentrates, Crude protein, Diet, Saliva output
Citação
OLIVEIRA, Euclides Reuter de; DIAS, Darci silva de Oliveira; FERREIRA, Reginaldo Nassar; ACYPRESTE, Cléverson Santos; VIEIRA, Dirson; DIAS, Miguel Joaquim. Estudo da eficiência do calcário calcítico, do carbonato de cálcio e do óxido de magnésio no controle do ph ruminal. Ciência Animal Brasileira, Goiânia, v. 4, n. 1, p. 25-32, jan./jun. 2003. Disponível em: <https://www.revistas.ufg.br/vet/article/view/299/267>.