دورية أكاديمية
أعرض في EDS

Copper sulfate and sodium selenite lipid-microencapsulation modifies ruminal microbial fermentation in a dual-flow continuous-culture system.

التفاصيل البيبلوغرافية
العنوان: Copper sulfate and sodium selenite lipid-microencapsulation modifies ruminal microbial fermentation in a dual-flow continuous-culture system.
المؤلفون: Arce-Cordero JA; Department of Animal Sciences, University of Florida, Gainesville 32611., Monteiro HF; Department of Animal Sciences, University of Florida, Gainesville 32611., Lelis AL; Department of Animal Sciences, University of Florida, Gainesville 32611., Lima LR; Department of Animal Sciences, Federal University of Mato Grosso, Cuiaba, MT, 78060-900, Brazil., Restelatto R; Department of Animal Sciences, Federal University of Parana, Curitiba, PR, 80060-000, Brazil., Brandao VLN; Department of Animal Sciences, University of Florida, Gainesville 32611., Leclerc H; JEFO Nutrition Inc., St. Hyacinthe, QC J2R 2E7, Canada., Vyas D; Department of Animal Sciences, University of Florida, Gainesville 32611., Faciola AP; Department of Animal Sciences, University of Florida, Gainesville 32611. Electronic address: afaciola@ufl.edu.
المصدر: Journal of dairy science [J Dairy Sci] 2020 Aug; Vol. 103 (8), pp. 7068-7080. Date of Electronic Publication: 2020 Jun 03.
نوع المنشور: Evaluation Study; Journal Article
اللغة: English
بيانات الدورية: Publisher: American Dairy Science Association Country of Publication: United States NLM ID: 2985126R Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1525-3198 (Electronic) Linking ISSN: 00220302 NLM ISO Abbreviation: J Dairy Sci Subsets: MEDLINE
أسماء مطبوعة: Publication: Champaign, IL : American Dairy Science Association
Original Publication: Lancaster, Pa. [etc.]
مواضيع طبية MeSH: Bacteria/*drug effects , Cattle/*physiology , Copper Sulfate/*administration & dosage , Dietary Supplements/*analysis , Fatty Acids, Volatile/*metabolism , Sodium Selenite/*administration & dosage, Animal Feed/analysis ; Animals ; Bacteria/metabolism ; Bioreactors/veterinary ; Cattle/microbiology ; Culture Techniques/veterinary ; Diet/veterinary ; Digestion ; Drug Compounding/veterinary ; Female ; Fermentation/drug effects ; Lipids/chemistry ; Nutrients/metabolism ; Rumen/metabolism ; Rumen/microbiology ; Trace Elements/metabolism
مستخلص: Undesirable interactions between trace mineral elements and ruminal contents may occur during digestion when mineral salts are supplemented. Antimicrobial effects of copper sulfate (CuSO 4 ) may affect ruminal digestibility of nutrients when fed as a source of copper (Cu), while sodium selenite (Na 2 SeO 3 ) may be reduced in the rumen to less available forms of selenium (Se). Our objective was to evaluate if protection of CuSO 4 and Na 2 SeO 3 by lipid-microencapsulation would induce changes on ruminal microbial fermentation. We used 8 fermentors in a dual-flow continuous-culture system in a 4 × 4 duplicated Latin square with a 2 × 2 factorial arrangement of treatments. Factors were CuSO 4 protection (unprotected and protected by lipid-microencapsulation) and Na 2 SeO 3 protection (unprotected and protected by lipid-microencapsulation). Treatments consisted of supplementation with 15 mg/kg of Cu and 0.3 mg/kg of Se from either unprotected or protected (lipid-microencapsulated) sources, as follows: (1) Control (unprotected CuSO 4 + unprotected Na 2 SeO 3 ); (2) Cu-P (protected CuSO 4 + unprotected Na 2 SeO 3 ); (3) Se-P (unprotected CuSO 4 + protected Na 2 SeO 3 ); (4) (Cu+Se)-P (protected CuSO 4 + protected Na 2 SeO 3 ). All diets had the same nutrient composition and fermentors were fed 106 g of dry matter/d. Each experimental period was 10 d (7 d of adaptation and 3 d for sample collections). Daily pooled samples of effluents were analyzed for pH, NH 3 -N, nutrient digestibility, and flows (g/d) of total N, NH 3 -N, nonammonia N (NAN), bacterial N, dietary N, and bacterial efficiency. Kinetics of volatile fatty acids was analyzed in samples collected daily at 0, 1, 2, 4, 6, and 8 h after feeding. Main effects of Cu protection, Se protection, and their interaction were tested for all response variables. Kinetics data were analyzed as repeated measures. Protection of Cu decreased acetate molar proportion, increased butyrate proportion, and tended to decrease acetate:propionate ratio in samples of kinetics, but did not modify nutrient digestibility. Protection of Se tended to decrease NH 3 -N concentration, NH 3 -N flow, and CP digestibility; and to increase flows of nonammonia N and dietary N. Our results indicate that protection of CuSO 4 may increase butyrate concentration at expenses of acetate, while protection of Na 2 SeO 3 tended to reduce ruminal degradation of N. Further research is needed to determine the effects of lipid-microencapsulation on intestinal absorption, tissue distribution of Cu and Se, and animal performance.
(Copyright © 2020 American Dairy Science Association. Published by Elsevier Inc. All rights reserved.)
فهرسة مساهمة: Keywords: in vitro; ruminal digestibility; trace mineral
المشرفين على المادة: 0 (Fatty Acids, Volatile)
0 (Lipids)
0 (Trace Elements)
HIW548RQ3W (Sodium Selenite)
LRX7AJ16DT (Copper Sulfate)
تواريخ الأحداث: Date Created: 20200608 Date Completed: 20201211 Latest Revision: 20201214
رمز التحديث: 20240628
DOI: 10.3168/jds.2019-17913
PMID: 32505403
قاعدة البيانات: MEDLINE
الوصف
تدمد:1525-3198
DOI:10.3168/jds.2019-17913