@article {10.3844/ajavsp.2015.9.13,
article_type = {journal},
title = {The Effect of Various Inclusion Levels of β-Mannanase on Nutrient Digestibility in Diets Consisting of Corn, Soybean Meal and Palm Kernel Expellers Fed to Growing Pigs},
author = {Kwon, W. B. and Park, S. K. and Kong, C. and Kim, B.G.},
volume = {10},
number = {1},
year = {2014},
month = {Dec},
pages = {9-13},
doi = {10.3844/ajavsp.2015.9.13},
url = {https://thescipub.com/abstract/ajavsp.2015.9.13},
abstract = {An experiment was conducted to determine the effects of various inclusion levels of β-mannanase on the energy and mannan digestibility in diets containing corn, Soybean Meal (SBM) and Palm Kernel Expellers (PKE) fed to growing pigs. The PKE contained 92.6% dry matter, 4,417 kcal gross energy kg-1, 4.02% ash and 31.3% mannan on an as-fed basis. Six barrows with an initial body weight of 41.4±1.7 kg were individually housed in metabolism crates equipped with a feeder and a nipple drinker. Pigs were randomly allotted to a 6×6 Latin square design with 6 dietary treatments and 6 periods. An experimental period consisted of a 4-d adaptation period and a 5-d collection period. Pigs were fed corn-SBM-based diets containing 15% PKE with 0, 400, 800, 1,600, 2,400 or 3,200 U kg-1 of β-mannanase. A chromic oxide was added as an indigestible marker for fecal collection according to a marker-to-marker procedure. Urine was also collected from each period. Each of the 6 diets contained 3.60, 3.91, 4.06, 2.57, 3.57 and 2.59% of mannan, respectively. No linear and quadratic effects of β-mannanase supplementation on apparent total tract digestibility of energy were observed. The digestibility of mannan was also not affected by the increasing level of β-mannanase supplementation. In conclusion, exogenous β-mannanase did not affect the energy and mannan digestibility in corn-SBM-based diets containing 15% of PKE fed to growing  pigs.},
journal = {American Journal of Animal and Veterinary Sciences},
publisher = {Science Publications}
}