Fecal collection is very important to the accuracy of the estimation of
the apparent digestibility coefficient (ADC). A prevalent issue when
estimating ADC is the leaching of nutrients from feces, resulting in an
overestimation of the apparent digestibility coefficients (Storebakken
et al., 1998). Windell et al. (1978) reported that feces collected from
the outlet water gave values 5% higher than those for feces collected
by intestinal dissection and anal suction. However, as long as the fecal
strands are intact, the effect of leaching on nutrient digestibility estimateswas
believed to beminimal (Bahurmiz andNg, 2007). Thus intact