Soybean Meal-Dogs
The objective of this study was to evaluate the effects of oligosaccharides
and supplemental beta-mannanase in soybean meal-based diets on nutrient
availability and flatulence. Six dogs were allotted to a 2x3 factorial
arrangement of treatments in a 6x6 Latin square experiment to evaluate
the digestibility, flatulence and fecal odor of low-oligosaccharide,
low-phytate soybean meal, conventional soybean meal and poultry by-product
meal diets with and without a beta-mannanase addition (5g/kg). Results
indicated the enzyme supplementation had no effect on total tract digestibility
of dry matter, nitrogen or energy. Poultry by-product meal had a higher
digestibility of dry matter and energy (91.3% and 4,255 cal/g) compared
to the soybean meal based-diets (87% and 4,049 cal/g). The enzyme addition
did not alter fecal odor metabolites, whereas, differences were found
between the protein sources. The dogs fed poultry by-product meal based
diets produced lower concentrations of carboxylic acids and esters and
higher concentrations of the heterocycles, phenols, thio and sulfides,
ketones, alcohol and idoles compared to the two soybean meal sources.
It was significant that the lower levels of stachyose and raffinose
in the low-oligosaccharide soybean meal did not alter digestibility
or flatulence in dogs.
Yamka, R.M. and co-workers. 2006. In vivo measurement of flatulence and nutrient digestibility in dogs fed poultry by-product meal, conventional soybean meal and low-oligosaccharide low-phytate soybean meal. Am. J. Veterinary Research 67(1): 88-94.
