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Partial replacement of soybean meal with microalgae biomass on in vitro ruminal fermentation may reduce ruminal protein degradation.

التفاصيل البيبلوغرافية
العنوان: Partial replacement of soybean meal with microalgae biomass on in vitro ruminal fermentation may reduce ruminal protein degradation.
المؤلفون: Lobo RR; Department of Animal Sciences, University of Florida, Gainesville, FL 32608., Siregar MU; Department of Animal Sciences, University of Florida, Gainesville, FL 32608., da Silva SS; Department of Animal Sciences, University of Florida, Gainesville, FL 32608., Monteiro AR; Department of Animal Sciences, University of Florida, Gainesville, FL 32608; Animal Nutrition Laboratory, Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, SP, Brazil, 13400-970., Salas-Solis G; Department of Animal Sciences, University of Florida, Gainesville, FL 32608., Vicente ACS; Department of Animal Sciences, University of Florida, Gainesville, FL 32608., Vinyard JR; Department of Animal Sciences, University of Florida, Gainesville, FL 32608., Johnson ML; Department of Animal Sciences, University of Florida, Gainesville, FL 32608., Ma S; Department of Animal Sciences, University of Florida, Gainesville, FL 32608., Sarmikasoglou E; Department of Animal Sciences, University of Florida, Gainesville, FL 32608., Coronella CJ; Department of Chemical and Materials Engineering, University of Nevada, Reno, NV 89557., Hiibel SR; Department of Chemical and Materials Engineering, University of Nevada, Reno, NV 89557., Faciola AP; Department of Animal Sciences, University of Florida, Gainesville, FL 32608. Electronic address: afaciola@ufl.edu.
المصدر: Journal of dairy science [J Dairy Sci] 2024 Mar; Vol. 107 (3), pp. 1460-1471. Date of Electronic Publication: 2023 Nov 08.
نوع المنشور: 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: Microalgae* , Chlorella*/metabolism, Female ; Cattle ; Animals ; Fermentation ; Lactation ; Proteolysis ; Animal Feed/analysis ; Biomass ; Flour/analysis ; Glycine max ; Nutrients/analysis ; Nitrogen/metabolism
مستخلص: The objective of this study was to evaluate the effects of partially replacing soybean meal (SBM) with algal sources on in vitro ruminal fermentation. Using 6 fermenters in a 3 × 3 replicated Latin square with 3 periods of 10 d each, we tested 3 treatments: a control diet (CRT) with SBM at 17.8% of the diet dry matter (DM); and 50% SBM biomass replacement with either Chlorella pyrenoidosa (CHL); or Spirulina platensis (SPI). The basal diet was formulated to meet the requirements of a 680-kg Holstein dairy cow producing 45 kg/d of milk with 3.5% fat and 3% protein. All diets had a similar nutritional composition (16.0% CP; 34.9% NDF; 31.0% starch, DM basis) and fermenters were provided with 106 g DM/d split into 2 portions. After 7 d of adaptation, samples were collected for 3 d of each period for analyses of ruminal fermentation at 0, 1, 2, 4, 6, and 8 h after morning feeding for evaluation of the ruminal fermentation kinetics. For the evaluation of the daily production of total metabolites and for the evaluation of nutrient degradability, samples from the effluent containers were collected daily. Statistical analysis was performed with the MIXED procedure of SAS with treatment, time, and their interactions considered as fixed effects; day, square, and fermenter were considered as random effects. Orthogonal contrasts (CRT vs. algae; and CHL vs. SPI) were used to depict the treatment effect, and significance was declared when P ≤ 0.05. Fermenters that received algae-based diets had a greater propionate molar concentration and molar proportion when compared with the fermenters fed CRT diets. In addition, those algae-fed fermenters had lower branched short-chain fatty acids (BSCFA) and isoacids (IA), which are biomarkers of ruminal protein degradation, along with lower ammonia (NH 3 -N) concentration and greater nonammonia nitrogen (NAN). When contrasting with fermenters fed SPI-diets, fermenters fed based CHL-diets had a lower molar concentration of BSCFA and IA, along with lower NH 3 -N concentration and flow, and greater NAN, bacterial nitrogen flow, and efficiency of nitrogen utilization. Those results indicate that CHL protein may be more resistant to ruminal degradation, which would increase efficiency of nitrogen utilization. In summary, partially replacing SBM with algae biomass, especially with CHL, is a promising strategy to improve the efficiency of nitrogen utilization, due to the fact that fermenters fed CHL-based diets resulted in a reduction in BSCFA and IA, which are markers of protein degradation, and it would improve the efficiency of nitrogen utilization. However, further validation using in vivo models are required.
(The Authors. Published by Elsevier Inc. and Fass Inc. on behalf of the American Dairy Science Association®. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).)
فهرسة مساهمة: Keywords: Chlorella; Spirulina; branched-chain fatty acids; isoacids
المشرفين على المادة: N762921K75 (Nitrogen)
تواريخ الأحداث: Date Created: 20231109 Date Completed: 20240304 Latest Revision: 20240304
رمز التحديث: 20240304
DOI: 10.3168/jds.2023-24016
PMID: 37944802
قاعدة البيانات: MEDLINE
الوصف
تدمد:1525-3198
DOI:10.3168/jds.2023-24016