efeito da estirpe lt 516 de lactobacillus acidophlilus como probiótico para bezerros effect of one strain of lactobacillus acidophilus (lt 516) as probiotic for calves

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ID: 153040
1999
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Abstract
O objetivo deste trabalho foi verificar o efeito do fornecimento da estirpe LT 516 de Lactobacillus acidophilus, junto ao leite, sobre o desempenho de bezerros de rebanhos leiteiros, do nascimento aos 56 dias de idade. Trinta e seis bezerros recém-nascidos foram distribuídos em blocos ao acaso de acordo com o sexo, grau de sangue e peso ao nascer. O fornecimento diário de um concentrado com células viáveis (1,9 x 10(10) UFC/anim) de Lactobacillusacidophilus (LT 516), do nascimento aos 56 dias de idade (Tratamento 1), o fornecimento diário do mesmo concentrado do nascimento aos 10 dias de idade (Tratamento 2) e o não-fornecimento de Lactobacillus acidophilus (Tratamento 3) foram estudados. Os animais foram alimentados com 4 L de leite integral/anim·d e, a partir da segunda semana de idade, concentrado inicial e capim-elefante (Pennisetumpurpureum Schum) picado, à vontade. Não houve diferenças entre tratamentos nos consumos e nas digestibilidades aparentes da matéria seca e proteína bruta, no ganho de peso, na contagem de hematócritos, hemoglobina, glóbulos vermelhos e hemoglobina globular média, na concentração de hemoglobina globular média, no volume globular médio e na contagem global de leucócitos, na capacidade absortiva do intestino (estimada pelo teste de xilose), no pH da digesta do intestino delgado e no número de lactobacilos facultativos e coliformes totais nas fezes. O fornecimento de Lactobacillus acidophilus (LT 516) reduziu a ocorrência de diarréias, sem influir no odor e na consistência das fezes. Os animais que receberam probiótico nos primeiros 10 dias apresentaram maior número de lactobacilos facultativos no intestino delgado. O número de coliformes totais no intestino delgado foi maior nos animais controle e menor nos que receberam probiótico nos primeiros 56 dias.
The objective of this work was to verify the effect of the supply LT 516 strain of Lactobacillusacidophilus, adjoining to the milk, on dairy calves performance from birth to 56 days of age. Thirty-six newborn calves were allotted to a randomized blocks grouped by sex, breed and birth weight. The daily supply of a concentrate with viable cell (1,9 x 10(10) UFC/anim) of Lactobacillusacidophilus (LT 516), from birth to 56 days of age (Treatment 1); the daily supply of the same concentrate from birth to 10 days of age (Treatment 2) and no supply of Lactobacillusacidophilus (Treatment 3) were studied. Calves were fed 4 L of whole milk/anim·d, and from the second week of age, a starter concentrate and ad libitum chopped elephant grass (Pennisetum purpureum Schum). There were no differences among treatments on dry matter and crude protein intakes and apparent digestibility, weight gain, hematocrit, hemoglobin, red globules count, average globular hemoglobin, average globular hemoglobin concentration, average globular volume and leukocytes global count, on the absorptive capacity (estimated by the xylose test), calves intestinal digest pH and neither fecal facultative lactobacilli and total coliforms number. Lactobacillusacidophilus (LT 516) administration reduced diarrhea occurrence, without affecting feces odor and consistency. Calves fed probiotic for the first 10 days showed higher number of facultative lactobacilli in the small intestine. The number of total coliforms in the small intestine was higher in control calves, and lower in calves fed probiotic for the first 56 days of age.
Reference Key
chaves1999revistaefeito Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Antônio Hamilton Chaves;José Fernando Coelho da Silva;Oriel Fajardo de Campos;Adão José Rezende Pinheiro;Sebastião de Campos Valadares Filho
Journal european journal of lipid science and technology
Year 1999
DOI
10.1590/S1516-35981999000500025
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35981999000500025
Keywords
diarrhea lactobacillus acidophilus

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