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Effects of two dietary fiber levels on nutrient digestibility and intestinal fermentation products in captive brown howler monkeys (Alouatta guariba)
American Journal of Primatology ( IF 2.0 ) Pub Date : 2021-02-05 , DOI: 10.1002/ajp.23238 Lucas de Andrade Carneiro 1 , Tatiane B Moreno 1 , Barbara D Fernandes 2 , Camilla M M Souza 2 , Tais S Bastos 2 , Ananda P Félix 2 , Chayane da Rocha 2
American Journal of Primatology ( IF 2.0 ) Pub Date : 2021-02-05 , DOI: 10.1002/ajp.23238 Lucas de Andrade Carneiro 1 , Tatiane B Moreno 1 , Barbara D Fernandes 2 , Camilla M M Souza 2 , Tais S Bastos 2 , Ananda P Félix 2 , Chayane da Rocha 2
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Herbivorous primates present a selective consumption profile and morphological adaptations to use the fibrous fraction of their diets. Brown howler monkeys (Alouatta guariba) are generalist herbivores; however, when kept under human care, they usually receive diets rich in fruits and with insufficient amounts of fiber. Thus, the objective of this study was to evaluate the effects of two levels of neutral detergent fiber (NDF) in howlers on apparent total tract digestibility coefficients (ATTDC), fecal consistency, and intestinal fermentation products. A group of 26 adult howler monkeys, 13 males and 13 females, were fed two diets formulated to have 33% or 40% NDF for 11 days, according to a randomized block design (N = 26). The block factor was the enclosures with one, two, or three individuals (each enclosure corresponded to an experimental unit), totaling in eight replicates per treatment. There were no differences in dry matter and nutrients intake between treatments (p > 0.05). The diet with 33% NDF resulted in higher (p < 0.05) ATTDC of crude protein and crude energy. However, lower fecal concentrations of short‐chain fatty acids (SCFA) and dry matter were observed in the treatment with 33% NDF in contrast to the 40% NDF group (p < 0.05). We recommend the inclusion of higher fiber levels (40% NDF) in the diet of howler monkeys since there is evidence of greater production of SCFA and improvement in fecal consistency.
中文翻译：
两种膳食纤维水平对圈养棕吼猴 (Alouatta guariba) 营养物质消化率和肠道发酵产物的影响
草食性灵长类动物呈现出选择性消费特征和形态适应，以使用其饮食中的纤维部分。棕吼猴（Alouatta guariba）是多面食草动物；然而，在人类照料下，它们通常会接受富含水果且纤维含量不足的饮食。因此，本研究的目的是评估两种水平的中性洗涤纤维 (NDF) 在吼叫者中对表观总消化道消化系数 (ATTDC)、粪便稠度和肠道发酵产物的影响。根据随机区组设计（N = 26)。块因子是一个、两个或三个人的围场（每个围场对应一个实验单元），每个处理总共有 8 个重复。处理间干物质和养分摄入量差异无统计学意义（p > 0.05）。含 33% NDF 的日粮导致 粗蛋白和粗能的 ATTDC较高 ( p < 0.05)。然而，与 40% NDF 组相比，在 33% NDF 处理组中观察到粪便中短链脂肪酸 (SCFA) 和干物质浓度较低（p < 0.05）。我们建议在吼猴的饮食中添加更高的纤维水平（40% NDF），因为有证据表明 SCFA 的产量更高并且粪便稠度得到改善。
更新日期：2021-02-23
中文翻译：
两种膳食纤维水平对圈养棕吼猴 (Alouatta guariba) 营养物质消化率和肠道发酵产物的影响
草食性灵长类动物呈现出选择性消费特征和形态适应，以使用其饮食中的纤维部分。棕吼猴（Alouatta guariba）是多面食草动物；然而，在人类照料下，它们通常会接受富含水果且纤维含量不足的饮食。因此，本研究的目的是评估两种水平的中性洗涤纤维 (NDF) 在吼叫者中对表观总消化道消化系数 (ATTDC)、粪便稠度和肠道发酵产物的影响。根据随机区组设计（N = 26)。块因子是一个、两个或三个人的围场（每个围场对应一个实验单元），每个处理总共有 8 个重复。处理间干物质和养分摄入量差异无统计学意义（p > 0.05）。含 33% NDF 的日粮导致 粗蛋白和粗能的 ATTDC较高 ( p < 0.05)。然而，与 40% NDF 组相比，在 33% NDF 处理组中观察到粪便中短链脂肪酸 (SCFA) 和干物质浓度较低（p < 0.05）。我们建议在吼猴的饮食中添加更高的纤维水平（40% NDF），因为有证据表明 SCFA 的产量更高并且粪便稠度得到改善。
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