当前位置: X-MOL 学术J. Integr. Agric. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effects of formic acid and corn flour supplementation of banana pseudostem silages on nutritional quality of silage, growth, digestion, rumen fermentation and cellulolytic bacterial community of Nubian black goats
Journal of Integrative Agriculture ( IF 4.8 ) Pub Date : 2021-06-29 , DOI: 10.1016/s2095-3119(20)63470-0
Hao ZHANG , Xuan CHENG , Mabrouk ELSABAGH , Bo LIN , Hong-rong WANG

The objective of this study was to evaluate the effects of adding formic acid and corn flour supplementation to banana pseudostem silages on the nutritional quality of these silages, growth, digestion, rumen fermentation and cellulolytic bacterial community of Nubian black goats fed these silages. Banana pseudostem silage was prepared either conventionally without any additives (CON) or mixed with 0.6% formic acid (F), 10% corn flour (C), or both (F+C). Four experimental diets containing 40% of the corresponding silages were designed with roughage to concentrate ratio of 50:50 (dry matter (DM) basis). A total of 48 Nubian black castrated goats (body weight (BW), (22.64±1.82) kg; 4-mon-old) were randomized into one of the four treatment groups with 12 replicates of one castrated goat per replicate for each treatment in a completely randomized design. Each group was fed on one of the four experimental diets for 40 days. A factorial arrangement of treatments of 2 (formic acid levels: 0 and 0.6%)×2 (corn flour: 0 and 10%) was adopted. Formic acid supplementation increased (P<0.05) average daily gain, as well as lactic acid, propionate and butyric acid and water-soluble carbohydrate concentrations, but decreased (P<0.05) the feed conversion rate, pH value, acetate/propionate ratio, and butyric acid concentration relative to the CON group. Corn flour supplementation increased (P<0.05) the apparent digestibility of crude protein, neutral detergent fiber, and non-fibrous carbohydrate and Fibrobacter succinogenes, Ruminococcus albus, and Butyrivibrio fibrisolvens populations, but decreased (P<0.05) the Ruminococcus flavefaciens population relative to the CON group. There were no F×C treatment interactions (P>0.05) for any of the other indices except for the apparent digestibility of non-fibrous carbohydrate (NFC) (P<0.05). The results demonstrated that adding 0.6% formic acid and 10% corn flour supplementation to banana pseudostem silages improved the nutritional quality of these silages and enhanced the growth performance of Nubian black castrated goats by improving apparent nutrient digestibility, and regulating ruminal fermentation and bacteria populations.



中文翻译:

香蕉假茎青贮中添加甲酸和玉米粉对努比亚黑山羊青贮营养品质、生长、消化、瘤胃发酵及纤维素分解菌群落的影响

本研究的目的是评估在香蕉假茎青贮饲料中添加甲酸和玉米粉对这些青贮饲料的营养品质、生长、消化、瘤胃发酵和喂养这些青贮饲料的努比亚黑山羊的纤维素分解细菌群落的影响。香蕉假茎青贮饲料的制备方法是不加任何添加剂 (CON) 或与 0.6% 甲酸 (F)、10% 玉米粉 (C) 或两者混合 (F+C)。四种试验日粮含有 40% 的相应青贮饲料,粗饲料与精料的比例为 50:50(干物质 (DM) 基础)。努比亚黑山羊共48头(体重(BW),(22.64±1.82)kg;4 个月大)被随机分配到四个处理组之一,在完全随机设计中,每个处理重复 12 只阉割山羊。每组喂食四种实验饮食中的一种,持续 40 天。采用 2(甲酸水平:0 和 0.6%)×2(玉米粉:0 和 10%)处理的因子排列。甲酸补充剂增加(P <0.05) 平均日增重,以及乳酸、丙酸和丁酸和水溶性碳水化合物的浓度,但降低 ( P <0.05) 饲料转化率、pH 值、乙酸/丙酸比和丁酸浓度相对到 CON 组。玉米粉补充增加(P <0.05)粗蛋白,中性洗涤剂纤维和非纤维碳水化合物和的表观消化率Fibrobacter succinogenes的,瘤胃球菌球菌,溶纤维丁酸弧菌群体,但降低(P <0.05),瘤胃球菌属球菌相对于人口CON组。没有 F×C 处理相互作用(P>0.05) 对于除非纤维碳水化合物 (NFC) 的表观消化率外的任何其他指标 ( P <0.05)。结果表明,在香蕉假茎青贮饲料中添加 0.6% 甲酸和 10% 玉米粉可改善这些青贮饲料的营养品质,并通过提高营养物质表观消化率、调节瘤胃发酵和细菌数量来增强努比亚黑去势山羊的生长性能。

更新日期:2021-06-30
down
wechat
bug