title: Effects of xylanase supplementation on growth performance, nutrient digestibility, blood parameters, fecal microbiota, fecal score and fecal noxious gas emission of weaning pigs fed corn-soybean meal-based diet.
abstract: This study was conducted to evaluate the effects of xylanase supplementation on nutrient digestibility, growth performance, blood parameters, fecal microflora shedding, fecal score and fecal noxious gas emission of weaning pigs fed corn-soybean meal based diet. A total of 150 weaning pigs with an average initial body weight (BW) of 7.85 ± 0.93 kg were randomly allocated to three treatments based on BW and sex (10 replicate pens with five pigs, two gilts and three barrows) were used in this 42-day trial. Dietary treatments were: (1) CON, basal diet; (2) X1, basal diet +0.005% xylanase; (2) X2, basal diet +0.01% xylanase. The xylanase supplementation linearly increased (P < 0.05) average daily gain (ADG), and gain : feed ratio (G:F) from days 29 to 42 and the in overall period, dry matter, nitrogen and energy digestibility, and fecal Lactobacilli counts, and linearly decreased (P < 0.05) blood urea nitrogen (BUN) concentration, fecal NH3and H2S emission. Additionally, at weeks 5 and 6, there was a linear decrease in fecal score with xylanase supplementation. In conclusion, dietary supplementation of xylanase improved growth performance, nutrient digestibility, shifted microbiota by increasing fecal Lactobacillus counts, decreased BUN concentration, fecal score, and fecal NH3and H2S emission in weaning pigs.
authors.affiliation: Department of Animal Resource and Science, Dankook University, Cheonan, South Korea.
authors.forename: Ruixia
authors.initials: R
authors.lastname: Lan
authors.affiliation: Department of Animal Resource and Science, Dankook University, Cheonan, South Korea.
authors.forename: Tianshui
authors.initials: T
authors.lastname: Li
authors.affiliation: Department of Animal Resource and Science, Dankook University, Cheonan, South Korea.
authors.forename: Inho
authors.initials: I
authors.lastname: Kim
mesh_terms: D000393:Air Pollutants / Q000378:metabolism*; D000641:Ammonia / Q000378:metabolism*; D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena / Q000502:physiology*; D000818:Animals; D058491:Bacterial Load; D001806:Blood Urea Nitrogen; D004032:Diet / Q000662:veterinary*; D019587:Dietary Supplements; D004063:Digestion / Q000502:physiology*; D043364:Endo-1,4-beta Xylanases / Q000008:administration & dosage*; D004734:Energy Metabolism; D005243:Feces / Q000737:chemistry* / Q000382:microbiology*; D005260:Female; D005740:Gases; D006862:Hydrogen Sulfide / Q000378:metabolism*; D007778:Lactobacillus / Q000302:isolation & purification; D008297:Male; D013025:Glycine max; D013552:Swine / Q000254:growth & development* / Q000378:metabolism* / Q000382:microbiology*; D014886:Weaning; D003313:Zea mays
chemical_list: D000393:Air Pollutants; D005740:Gases; D000641:Ammonia; D043364:Endo-1,4-beta Xylanases; D006862:Hydrogen Sulfide
keywords: corn-soybean meal based diet; growth performance; noxious gas emission; weaning pigs; xylanase