Altered mucosa-associated microbiota in the ileum and colon of neonatal calves in response to delayed first colostrum feeding.
J Dairy Sci
; 102(8): 7073-7086, 2019 Aug.
Article
en En
| MEDLINE
| ID: mdl-31202657
ABSTRACT
The present study investigated whether delaying the first feeding of colostrum affected ileum and colon mucosa-associated microbiota in calves. Twenty-seven male Holstein calves were randomly assigned to 1 of 3 groups, fed colostrum at 45 min, 6 h, and 12 h after birth, respectively. Ileum and colon mucosa were collected at 51 h after birth, and their associated microbial profiles were assessed using amplicon sequencing. Both ileum and colon mucosa-associated microbiota were predominated by genus Escherichia-Shigella. The negative correlation between the molar proportion of short-chain fatty acids (SCFA) and ileum mucosa-associated opportunistic pathogens, and the positive correlation between the molar proportion of SCFA and colon mucosa-associated beneficial bacteria, suggest that SCFA might play an important role in maintaining the gut health of 2-d-old calves. A higher relative abundance of ileum mucosa-associated Enterococcus and Streptococcus was detected when the first colostrum feeding was delayed for 12 h. The relative abundance of colon mucosa-associated Lactobacillus tended to be lower in calves fed colostrum 12 h than those under the other 2 treatments, whereas that of Faecalibacterium tended to be lower in calves fed colostrum immediately after birth than those fed colostrum 6 and 12 h after birth, respectively. Our findings suggest that delayed first colostrum feeding affects the establishment of ileum and colon mucosa-associated bacteria, which may have long-term effects on gut health of calves.
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Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Bovinos
/
Calostro
/
Ácidos Grasos Volátiles
/
Microbioma Gastrointestinal
/
Animales Recién Nacidos
Tipo de estudio:
Risk_factors_studies
Límite:
Animals
Idioma:
En
Año:
2019
Tipo del documento:
Article