Dietary incorporation of magnetic bentonite nanocomposite: impacts on in vitro fermentation pattern, nutrient digestibility, and growth performance of Baluchi male lambs.

IF 0.8 4区 农林科学 Q3 VETERINARY SCIENCES
E Ibrahimi Khoram Abadi, S Heydari, M Kazemi
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引用次数: 0

Abstract

Background: Incorporation of bentonite into the diets of ruminants can be helpful to maximize their performance. Modifying the structure of bentonite to nano and nanocomposite has improved their chemical stability and physicochemical properties, enhancing adsorption, absorption, and cation exchange capacity. Aims: This study aimed to assess the effect of magnetic bentonite nanocomposite (MBNC) on in vivo and in vitro fermentation process patterns, nutrient digestibility, and growth performance of Baluchi male lambs.

Methods: Effects of control (basal diet), natural bentonite (NB) (10 g/kg dry matter (DM)), processed bentonite (PB) (5 and 10 g/kg DM basal diet), and MBNC (5 and 10 g/kg DM basal diet) on gas production (GP), and the fermentation process were determined using in vitro GP technique. For the in vivo experiment, 20 Baluchi male lambs were used with 4 experimental treatments: control, NB (5 g/kg DM), PB (5 g/kg DM), and MBNC (5 g/kg DM) and 5 replications in a completely randomized design for 60 consecutive days.

Results: The potential for GP and its fractional rates were significantly decreased and increased in MBNC, respectively (P<0.01). The lowest cumulative GP, and CH4 yield were observed in MBNC (P<0.05). In vitro, DM and organic matter (OM) digestibility and all fermentation parameters increased with the addition of two levels of MBNC to the culture medium (P<0.01). Except for feed conversion ratio (FCR), other growth performance parameters increased with the addition of MBNC to the diet (P<0.01). The ruminal pH, total volatile fatty acids (TVFA), acetate, and propionate significantly increased when MBNC incorporated to the diet (P<0.01). The NH3-N (P<0.001) was significantly decreased in MBNC. The bentonite supplementation decreased acetate to propionate (P=0.001) compared to the control.

Conclusion: Adding MBNC at the 5 g/kg diet DM level can be used as a useful supplement to optimize rumen fermentation pattern, reduce methane production, and increase lamb performance.

日粮中添加磁性膨润土纳米复合材料:对俾路支公羔羊体外发酵模式、养分消化率和生长性能的影响
背景:在反刍动物的日粮中添加膨润土有助于最大限度地提高其生产性能。将膨润土结构改性为纳米和纳米复合材料可改善其化学稳定性和理化性质,提高吸附、吸收和阳离子交换能力。目的:本研究旨在评估磁性纳米膨润土复合材料(MBNC)对俾路支公羔羊体内和体外发酵过程模式、营养物质消化率和生长性能的影响:方法:使用体外 GP 技术测定对照组(基础日粮)、天然膨润土(NB)(10 克/千克干物质(DM))、加工膨润土(PB)(5 和 10 克/千克 DM 基础日粮)和 MBNC(5 和 10 克/千克 DM 基础日粮)对产气量(GP)和发酵过程的影响。在体内实验中,20 只俾路支雄性羔羊接受了 4 种实验处理:对照组、NB(5 克/千克 DM)、PB(5 克/千克 DM)和 MBNC(5 克/千克 DM),5 次重复,完全随机设计,连续 60 天:在 MBNC(P4)中观察到,体外培养基中添加两种浓度的 MBNC(P3-N)后,GP 的潜力及其分率分别显著降低和提高(P4),DM 和有机物(OM)消化率以及所有发酵参数都提高了(PC结论:添加 5 克/千克日粮 DM 水平的 MBNC 可作为优化瘤胃发酵模式、减少甲烷产生和提高羔羊生产性能的有效补充。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.70
自引率
8.30%
发文量
10
期刊介绍: The Iranian Journal of Veterinary Research(IJVR) is published quarterly in 4 issues. The aims of this journal are to improve and expand knowledge in all veterinary fields. It is an international journal indexed by the Thomson Institute for Scientific Information (ISI), Elsevier, Scopus, CAB International, Veterinary Bulletin and several other international databases. Research papers and reports on a wide range of veterinary topics are published in the journal after being evaluated by expert reviewers.The Editor-in-Chief is responsible for the editorial content of the journal—including peer-reviewed manuscripts—and the timing of its publication.
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