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פותח על ידי קלירמאש פתרונות בע"מ -
NIRS-aided evaluation of fecal output in goats browsing on Mediterranean woodland
Year:
2005
Source of publication :
Options mediterraneennes
Authors :
ברוש, אריה
;
.
דבש, לבנה
;
.
לנדאו, יאן
;
.
Volume :
67A
Co-Authors:

Decandia, M.; Molle, G.; Cabiddu, A.; Scanu, G.

Facilitators :
From page:
407
To page:
412
(
Total pages:
6
)
Abstract:

Long chain n-alkanes, are reliable markers of faecal output (FO), but their chemical extraction is time-consuming. We hypothesized that polyethylene glycol (PEG), analysed by near infrared spectrometry (NIRS), can replace C36 for the estimation of FO in browsing goats. Faeces were sampled twice daily for 2 days, after 9 days of adaptation. Calibrations relying on the whole NIR region (1100 to 2500 nm), or relying only on segments not involved in PEG-tannin bonds (less than 2280nm), were calculated (R2 equal to 0.999, SECV equal to 0.32 less than and R2 equal to 0.998, SECV equal to 0.45 less than, respectively). Group estimates of FO, using C36 or PEG, did not differ when the restricted NIR equation was utilized. However, assuming that the FO value provided by C36 analysis is correct, FO tended to be overestimated (P less than 0.14) for PEG, when the whole NIR region equation was utilized.

Note:
Related Files :
Digestibility
goats
Mediterranean region (site)
NIRS
nutrition
nutritional status
spectroscopy
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
0
Affiliations:
Database:
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
51568
Last updated date:
02/03/2022 17:27
Creation date:
08/11/2020 14:33
Scientific Publication
NIRS-aided evaluation of fecal output in goats browsing on Mediterranean woodland
67A

Decandia, M.; Molle, G.; Cabiddu, A.; Scanu, G.

NIRS-aided evaluation of fecal output in goats browsing on Mediterranean woodland

Long chain n-alkanes, are reliable markers of faecal output (FO), but their chemical extraction is time-consuming. We hypothesized that polyethylene glycol (PEG), analysed by near infrared spectrometry (NIRS), can replace C36 for the estimation of FO in browsing goats. Faeces were sampled twice daily for 2 days, after 9 days of adaptation. Calibrations relying on the whole NIR region (1100 to 2500 nm), or relying only on segments not involved in PEG-tannin bonds (less than 2280nm), were calculated (R2 equal to 0.999, SECV equal to 0.32 less than and R2 equal to 0.998, SECV equal to 0.45 less than, respectively). Group estimates of FO, using C36 or PEG, did not differ when the restricted NIR equation was utilized. However, assuming that the FO value provided by C36 analysis is correct, FO tended to be overestimated (P less than 0.14) for PEG, when the whole NIR region equation was utilized.

Scientific Publication
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