四个实验室应用滤袋技术检测阿根廷反刍饲料酸性和中型洗

四个实验室应用滤袋技术检测阿根廷反刍饲料酸性和中型洗涤纤维的变异性
The objective of this work was to evaluate the filter
bag technique (FBT) in an ANKOM 200 fiber
analyzer to assess its accuracy for the
determination of acid and neutral detergent fiber
(ADF and NDF, respectively) contents in common
ruminant feeds from the temperate region of
Argentina. The evaluation was done in a ring test
of 4 laboratories. The 3 Argentine laboratories
were from the College of Agronomy, University of
Buenos Aires, the College of Agricultural Sciences
of the Catholic University of Argentina, and the
Balcarce Agricultural Experiment Station of the
National Institute of Agricultural Technology
(INTA). The fourth laboratory was from the
Department of Animal Science of Cornell
University, Ithaca, NY. The feeds utilized were
soybean meal expeller, whole sunflower seed, corn
grain, herbages of alfalfa, ryegrass, tall
wheatgrass, weeping lovegrass, guinea and barley
grasses, and silages of corn and of a natural
grassland. Results indicated that values obtained
in the 4 laboratories were consistent regardless of
the laboratory where the analyses were performed.
It was concluded that the FBT in the ANKOM
instrument gave satisfactory results when used for
the determination of both ADF and NDF across
samples having a wide range of fiber contents, and
that the among-laboratories variability of this
methodology was low. 全自动纤维分析仪 半自动纤维分析仪