期刊
ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES
卷 25, 期 9, 页码 1255-1261出版社
ASIAN-AUSTRALASIAN ASSOC ANIMAL PRODUCTION SOC
DOI: 10.5713/ajas.2011.11312
关键词
Holstein Calves; Multi-strain Probiotic; Mannanoligosaccharides Beta-glucan; E. coli Count; Cell-mediated Immune Response
Thirty two Holstein female calves (initial body weight = 40 +/- 3.0 kg) were used to investigate the effects of probiotic and prebiotic on average daily gain (ADO), fecal E. coli count, white blood cell count, plasma IgG1 level and cell-mediated immune response to injection of phytohemagglutinin in suckling female calves. Calves were assigned randomly to one of the four treatments, including whole milk without additives (control), whole milk containing probiotic, whole milk containing prebiotic and whole milk containing probiotic and prebiotic (synbiotic). Average daily gain was greater in calves fed probiotic, prebiotic and synbiotic at weeks 6, 7 and 8 (p<0.05). E. coli count was significantly lower in calves fed probiotic, prebiotic and synbiotic on d 56 (p<0.05). There was no significant difference between treatments in blood samples and cell-mediated response. This study showed that addition of probiotic, prebiotic and combination of these additives to milk enhanced ADO and reduced fecal E. coli count in preruminant calves.
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