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Tsukuba Business-Academia Cooperation Support Center, Agriculture, Forestry and Fisheries Research Council Secretariat of the Ministry of Agriculture, Forestry and Fisheries, Japan (MAFF) was established in 1978 as Tsukuba Office and has been planning and operating various research facilities for supporting experimental research activities of research agencies, prefectural organizations and universities. The Tsukuba Business-Academia Cooperation Support Center is currently managing two centers, Agriculture, Forestry and Fisheries Research Infor [...]

Journal Article

Journal Article

Digestibility estimation based on NIRS method using fecal grab sample  [1996]

Purnomoadi, A. (Tokyo Univ. of Agriculture (Japan)); Kurihara, M.; Nishida, T.; Terada, F.; et al.

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Fecal grab samples (FGS, n=216) collected from six hours interval during first two days of digestion trials were used in this study. The trials were conducted to twenty-seven dairy cattle given three rations. The rations were Italian ryegrass combined with 40% concentrate (group 1), steamed wood at 5% (group 2) and 55% (group 3) of total dry matter supply. Near infrared reflectance spectroscopy (NIRS) was carried out to determine both the FGS and feces from total collection (FTC) to know the diurnal variation. Compositions of FGS determined by NIRS were used in digestibility estimation based on lignin indicator method (LIM). For comparison, the digestibility value of FTC was obtained from conventional analysis methods (=in vivo value). Diurnal variation of composition within FGS was not significant. With respect to the use of FGS composition for digestibility estimation, there was generally significantly different (P0.01) from that of in vivo. An exception, the not significantly was obtained in the digestibility of EE (group 1), OM, ADF and energy, TDN (group 3). The range of biases of digestibilities between FGS and in vivo were 1.0-5.7, 3.5-8.1 and 0.6-7.3% for group 1, 2 and 3, respectively, and was considered related to the lignin recoveries. Standard deviations of differences between the digestibility of FGS and in vivo were generally averages below 3.7% for low lignin rations (group 1 and 2), except CF (6.3%) and ADF (5.6%) in group 1, but slightly h
igh for high lignin rations (group 3)
From the journal
Bulletin of National Institute of Animal Industry (Japan)
ISSN : 0077-488X

Bibliographic information

Language:
English
Type:
Summary
In AGRIS since:
1998
Issue:
57
Start Page:
29
End Page:
37
All titles:
"Digestibility estimation based on NIRS method using fecal grab sample"@eng
Other:
"Summaries (En, Ja)"
"5 tables; 12 ref."
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Bibliographic information

Language:
English
Type:
Summary
In AGRIS since:
1998
Issue:
57
Start Page:
29
End Page:
37
All titles:
"Digestibility estimation based on NIRS method using fecal grab sample"@eng
Other:
"Summaries (En, Ja)"
"5 tables; 12 ref."