背景:在反刍动物中,纤维饲料必须包括在口粮中,以确保正常的瘤胃生理和防止瘤胃相关代谢疾病的发生。除了是纤维饲料的来源,它们含有取决于消化水平和蛋白质的能量,矿物,脂肪酸,矿物,和次要化合物。
目的:本研究旨在确定营养物质,脂肪酸,pennyroyal(MenthapulegiumL.)植物的矿物质和体外瘤胃发酵值。
方法:在不同的物候阶段收集pennyroyal植物样品(营养,充分开花,和种子膨胀)来自天然草地。分析了样品的核心营养素,缩合单宁,矿物,脂肪酸,和体外瘤胃发酵参数。
结果:钙(Ca)和铁(Fe)含量以及体外瘤胃发酵参数(总产气和甲烷产量,有机物消化(OMd),氨氮)随物候阶段的增加而降低(p<0.05)。亚油酸的百分比,α-亚麻酸,pennyroyal植物的ω-3,ω-6和多不饱和脂肪酸(PUFA)随着物候阶段线性增加(p<0.05)。然而,盛花期体外瘤胃发酵液中丁酸(BA)浓度低于其他阶段(p<0.05)。
结论:Pennyroyal植物在高值的醚提取物(EE)方面是一种功能性植物,α-亚麻酸,亚油酸,∑ω-3脂肪酸,Ca,Fe和Zn含量。这种植物用作动物饲料,当它的Ca值最高的阶段,Mg,S和Zn矿物质和离体OMd是营养性和全花期。作为∑ω-3和∑ω-6脂肪酸和核心营养素(CP和EE)的动物饲料具有良好潜力的阶段是种子膨胀阶段。
In ruminants, fibrous feedstuffs must be included in the ration to ensure normal rumen physiology and to prevent the occurrence of rumen-related metabolic diseases. In addition to being a source of fibrous feedstuffs, they contain energy depending on the level of digestion and protein, minerals, fatty acids, minerals, and secondary compounds.
This study aimed to determine the nutrient matter, fatty acid, mineral and in vitro rumen fermentation values of the pennyroyal (Mentha pulegium L.) plant.
The pennyroyal plant samples were collected at different phenological stages (vegetative, full flowering, and seed bulking) from the natural meadow. The samples were analysed for core nutrients, condensed tannins, minerals, fatty acids, and in vitro ruminal fermentation parameters.
The calcium (Ca) and iron (Fe) contents and in vitro ruminal fermentation parameters (total gas production and methane production, organic matter digestion (OMd), and the ammonia-nitrogen) decreased with increasing phenological stage (p < 0.05). The percentages of linoleic, α-linolenic, ω-3, ω-6 and polyunsaturated fatty (PUFA) acids of the pennyroyal plant linearly increased with the phenological stages (p < 0.05). However, butyric acid (BA) concentration in the in vitro ruminal fermentation fluid in the full flowering stage was lower than that of other stages (p < 0.05).
Pennyroyal plant is a functional plant in terms of high values of ether extract (EE), α-linolenic acid, linoleic acid, ∑ω-3 fatty acids, Ca, Fe and Zn contents. For this plant to be used as animal feed, the stage when it has the highest values for Ca, Mg, S and Zn minerals and in vitro OMd were vegetative and full flowering. The stage with good potential as animal feed for ∑ω-3 and ∑ω-6 fatty acids and core nutrients (CP and EE) is the seed bulking stage.