title: Effects of mannan level and β-mannanase supplementation on growth performance, apparent total tract digestibility and blood metabolites of growing pigs.
abstract: The exogenous enzymes are less consistent in their effects as their beneficial effects depend upon the types and level non-starch polysaccharides (NSP) present in the diets. Therefore, exogenous enzymes should be selected on the basis of types and amount of the NSP in the pig diets. The objectives of the present experiments were to investigate the effects of dietary level of mannan and β-mannanase supplementation on growth performance, apparent total tract digestibility (ATTD) of energy and nutrients, and blood metabolites of growing pigs. In Exp. 1, 96 barrows were randomly allotted to four treatments on the basis of BW. There were four replicates in each treatment with six pigs per replicate. The dietary treatments were a corn-soybean meal (SBM)-based control diet and three other diets consisted of the control diet supplemented with 400, 800 or 1600 U of β-mannanase/kg diet. The final BW, average daily gain (ADG) and blood glucose increased (linear, P0.05) on the concentrations of blood total cholesterol, triacylglycerides and blood urea nitrogen. These results indicate that supplementation of β-mannanase to low- or high-mannan diets have potential to improve the performance of growing pigs. In addition, palm kernel meal may partially replace corn and SBM without reducing pig performance if β-mannanase is added to diet.
authors.affiliation: 1Southern Research and Outreach Center,University of Minnesota,Waseca,MN 56093,USA.
authors.forename: J S
authors.initials: JS
authors.lastname: Kim
authors.affiliation: 2College of Animal Life Sciences,Kangwon National University,Chuncheon 200-701,Republic of Korea.
authors.forename: S L
authors.initials: SL
authors.lastname: Ingale
authors.affiliation: 2College of Animal Life Sciences,Kangwon National University,Chuncheon 200-701,Republic of Korea.
authors.forename: A R
authors.initials: AR
authors.lastname: Hosseindoust
authors.affiliation: 2College of Animal Life Sciences,Kangwon National University,Chuncheon 200-701,Republic of Korea.
authors.forename: S H
authors.initials: SH
authors.lastname: Lee
authors.affiliation: 3CTC Bio, Inc.,Seoul 138-858,Republic of Korea.
authors.forename: J H
authors.initials: JH
authors.lastname: Lee
authors.affiliation: 2College of Animal Life Sciences,Kangwon National University,Chuncheon 200-701,Republic of Korea.
authors.forename: B J
authors.initials: BJ
authors.lastname: Chae
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001786:Blood Glucose; D001806:Blood Urea Nitrogen; D004032:Diet / Q000662:veterinary; D019587:Dietary Supplements; D004063:Digestion / Q000187:drug effects*; D008297:Male; D008351:Mannans / Q000008:administration & dosage / Q000494:pharmacology*; D013552:Swine / Q000097:blood / Q000254:growth & development* / Q000502:physiology; D015430:Weight Gain / Q000187:drug effects; D044902:beta-Mannosidase / Q000008:administration & dosage / Q000494:pharmacology*
chemical_list: D001786:Blood Glucose; D008351:Mannans; D044902:beta-Mannosidase
keywords: 
                 β-mannanase; blood metabolites; growing pigs; mannan; performance