ISSN:
1573-2568
Keywords:
Cryptosporidium sp.
;
breath H2 concentrations
;
malabsorption
;
diarrhea
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract Pulmonary hydrogen gas (H2) concentrations were used to assess the malabsorption of dietary nutrients in preruminating calves inoculated withCryptosporidium sp. Normal values were established in five control calves and seven calves (principals) were inoculated with 1.0 ×105 Cryptosporidium sp. oocysts. Hydrogen concentrations and wet fecal weights were measured at three stages: beforeCryptosporidium sp. inoculation (stage 1), three days after the onset of diarrhea (stage 2), and after the resolution of diarrhea (stage 3). Mean end-breath and total-breath H2 concentrations in the principal calves were higher (P〈0.025 andP〈 it0.05) for stage 2, when compared to control values. Both end-breath and total-breath H2 concentrations were increased (P〈0.001 andP〈0.025, respectively) in the principal calves during stage 2 when compared to values obtained for stages 1 and 3. Concurrently,Cryptosporidium sp. infection was associated with increased (P=0.06) fecal output during stage 2, only. The increased H2 concentrations and cumulative fecal output show thatCryptosporidium sp. caused malabsorption of fermentable nutrients.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01538076
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