Impacts of energy feeds and supplemental protease on growth performance, nutrient digestibility, and gut health of pigs from 18 to 45 kg body weight
| Autor: | Shihai Zhang, Sung Woo Kim, Inkyung Park, H. Chen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Growth performance medicine.medical_treatment Ileum Body weight Jejunum 03 medical and health sciences chemistry.chemical_compound Animal science Nutrient Food Animals medicine Sorghum lcsh:SF1-1100 Protease biology digestive oral and skin physiology 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences Malondialdehyde biology.organism_classification 040201 dairy & animal science Special section: Nutrition and gut health in swine 030104 developmental biology medicine.anatomical_structure chemistry Biochemistry Duodenum Animal Science and Zoology Pigs Gut health lcsh:Animal culture |
| Zdroj: | Animal Nutrition, Vol 3, Iss 4, Pp 359-365 (2017) Animal Nutrition |
| ISSN: | 2405-6545 |
| Popis: | A total of 144 pigs with 18.4 ± 2.3 kg initial body weight (BW) at 6 wk of age were used in a 40-d trial to evaluate effects of protease (300,000 U/kg feed, BioResource International Inc., Durham, NC, USA) on growth performance, apparent ileal digestibility (AID) of nutrients, and gut health of pigs fed diets with sorghum. Pigs were randomly allotted to 4 treatments (12 pens per treatment, 3 pigs per pen) in a 2 × 2 factorial arrangement (corn or sorghum basal diets, and 0 or 0.05% protease as 2 factors) with sex and initial BW as blocks. Experimental period had phase 1 (d 1 to 21) and phase 2 (d 22 to 40). About 65% (phase 1) and 72% (phase 2) of cereal grains were used in corn or sorghum based diets. Both grains were ground to 400 μm. Body weight and feed intake were recorded weekly. On d 35, serum was collected to quantify tumor necrosis factor-α (TNF-α) and malondialdehyde (MDA). Titanium dioxide (0.3%) was added as an indigestible marker for an additional 4 d feeding. On d 40, 32 pigs (8 pigs per treatment) were euthanized to collect digesta from jejunum and ileum (for viscosity and AID), tissues (for morphology) and mucosa samples (for TNF-α and MDA) from duodenum, jejunum, and ileum. Replacing corn with sorghum in the diet increased (P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|