Effects of electron beam, NaOH and urea on chemical composition, phenolic compounds, in situ ruminal degradability and in vitro gas production kinetics of pistachio by-products
Publish place: Veterinary Research Forum، Vol: 6، Issue: 2
Publish Year: 1394
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_VRFAN-6-2_003
تاریخ نمایه سازی: 25 آبان 1402
Abstract:
The current study evaluated the effects of electron beam (EB; ۱۰, ۲۰, ۳۰ and ۴۰ kGy), urea and NaOH treatments on chemical composition, phenolic compounds, in vitro gas production and in situ ruminal degradability of pistachio by-product (PB). The EB decreased (p < ۰.۰۱) neutral detergent fiber (NDF), acid detergent fiber (ADF) and acid detergent lignin (ADL) contents of PB. Treating PB by NaOH and urea increased cell wall constitute of PB (p < ۰.۰۱). Irradiation at doses of ۳۰ and ۴۰ kGy reduced tannin and increased total phenol content of PB (p < ۰.۰۱). NaOH and urea treatments decreased tannins, total phenolics and condensed tannins of PB compared to control (p < ۰.۰۱). In situ ruminal dry matter (DM) degradation data showed that irradiation increased (p < ۰.۰۱) and, urea and NaOH decreased (p < ۰.۰۱) rapidly fermentable fraction (a) of PB. NaOH decreased (p < ۰.۰۱) fraction b and total degradable fraction (a + b) of PB. Irradiation and polyethylene-glycol increased rate of gas production (k), metabolizable energy (ME) and short chain fatty acid concentrations (SCFA), while, NaOH decreased gas production potential (b), ME and SCFA (p < ۰.۰۱). Data showed that although NaOH was efficent in detannification of PB, howevr, it reduced gas production and in situ degradation of PB.
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Authors
Masoud Moradi
Department of Animal Science, Agricultural Faculty of Abouraihan, University of Tehran, Tehran, Iran
Ahmad Afzalzadeh
Department of Animal Science, Agricultural Faculty of Abouraihan, University of Tehran, Tehran, Iran
Mehdi Behgar
Agricultural, Medical and Industrial Research School, Nuclear Science and Technology Research Institute, Karaj, Iran
Mohammad Ali Norouzian
Department of Animal Science, Agricultural Faculty of Abouraihan, University of Tehran, Tehran, Iran
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