Efecto del método de colección sobre la digestibilidad total de soya extruida en cerdos
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Date
2012-08-22
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
Facultad de Ciencias Administrativas y Agropecuarias
Facultad de Ciencias Administrativas y Agropecuarias
Abstract
Introduction: Total digestibility can be evaluated
by the use of direct and indirect methods.
The results, it is supposed should be identical,
under normal physiological conditions, for
digestibility studies in pigs. The literature
available, nevertheless, reports lower digestibility
coefficients for the indirect method. Objective:
To compare different collection methods for
the total digestibility (TD) of extruded soybean
protein in pigs. Materials and methods: The
field work was developed at San Pablo Center,
in Universidad Nacional de Colombia. 18 pigs
with a live weight of 35.5kg were used. They
were housed in independent cages and their
experimental diet contained extruded soybean as
protein source, and also met all of the minimal
nutrition requirements. The experimental work
consisted in five days of adaptation to the
experimental diet and 10 days of collecting
the feces and nylon bags. The experimental
treatments were: Total collection of feces (TCF),
mobile nylon bag technique (MNBT). Method
of the indicator: Chromium oxide (MI1) and
ferric oxide (MI2). The data of rough protein
disappearance were analyzed with a statistic
design of random blocks, by the use of the GLM
procedure of the SAS statistic package (2006).
Results: Statistic differences (P<0.01) appeared
between treatments, in which TCF and MNBT
had the highest digestibility coefficients. There
was no statistic difference (P>0.01) between
MI1 and MI2. Conclusions: TCF and MNBT are
practical and reliable procedures in nutritional
valuing studies for the food used in growing pigs.
Description
Keywords
Corporación Universitaria Lasallista, Facultad de Ciencias Administrativas y Agropecuarias, Digestibilidad, Soya como alimento para animales, Digestibilidad total, Cerdos, Cerdos - Nutrición, Cerdos - Alimentación y alimentos, Colección total de heces (CTH), Técnica bolsa móvil de naylon (TBMN)