授乳期ラクーンドッグにおける腸内細菌叢組成と機能の動的変化
Shaochen Yu1, Weixiao Nan1,2, Zhipeng Li1,2
1College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China.
Animals : an open access journal from MDPI
|January 28, 2026
まとめ
若いラクーンドッグの腸内細菌叢は、加齢とともに豊かで多様になり、バクテロイデス優勢からプレボテラ優勢へと移行する。この微生物叢の発達は、動物の健康に不可欠な代謝機能をサポートする。
科学分野:
- 動物科学;微生物学;ゲノミクス
背景:
- ラクーンドッグの毛皮生産は拡大しており、動物の健康を確保する必要性が高まっている。
- 腸内細菌叢は動物の健康に不可欠であるが、ラクーンドッグにおけるその役割は十分に研究されていない。
研究 の 目的:
- 授乳期ラクーンドッグにおける腸内細菌叢の組成と機能を特徴づけること。
- ラクーンドッグの科学的な給餌と管理の実践の基礎を提供すること。
主な方法:
- 生後14日、21日、45日に対象ラクーンドッグ8頭から糞便サンプルを採取した。
- 腸内細菌叢の組成は、16S rRNAシーケンシングおよびバイオインフォマティクスツール(LEfSe、Tax4Fun、PICRUSt)を用いて解析した。
- 腸内細菌叢の多様性、豊かさ、機能的可能性を異なる発達段階で評価した。
主要な成果:
- 腸内細菌叢の豊かさと多様性は加齢とともに増加し、45日齢でピークに達した。;上位の門はFirmicutesとBacteroidetesであった。;Bacteroides, Fusobacterium, Prevotellaなどの特定の属は、時間的濃縮を示した。;腸内細菌叢の機能解析では、代謝と遺伝情報処理、特に炭水化物とアミノ酸代謝における役割が示唆された。
結論:
- ラクーンドッグの授乳期において、腸内細菌叢の組成と機能は動的に変化する。
- これらの微生物叢の変化は、動物の健康に有益な必須代謝プロセスに関連している。
- 本研究の結果は、ラクーンドッグの生存率と健康状態を改善するための標的給餌戦略の開発を支持する。
関連する概念動画
Composition of Polyprotic Acid Solutions as a Function of pH
862
Polyprotic acids of the type H2M constitute two ionizable protons. As a result, on titration with a base, they exhibit two equivalence points in the titration curve. During titration, the species H2M, HM−, and M2− will be present in the solution at different points. The fractions of H2M, HM−, and M2− present at the various instances of the titration are denoted by α0, α1, and α2, respectively.
A graph with the alpha values is plotted against the volume of...
A graph with the alpha values is plotted against the volume of...
862
Classifying Matter by Composition
90.2K
Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
90.2K
Composite Bodies
1.4K
A composite body is a body made up of multiple parts, connected to form a larger, unified object. Each part has its own weight and center of gravity, which must be considered to determine the center of gravity of the composite body. In cases where the density or specific weight is constant, the center of gravity coincides with the centroid.
Composite bodies have widespread applications in mechanical engineering, from automobiles to aircraft to rockets. For example, an automobile wheel comprises...
Composite bodies have widespread applications in mechanical engineering, from automobiles to aircraft to rockets. For example, an automobile wheel comprises...
1.4K
Composition of Blood
12.1K
The blood in our bodies comprises three major components: blood plasma, formed elements, and the extracellular matrix. Blood plasma is a yellowish fluid that constitutes 55% of the total blood volume. It is primarily made up of water and essential substances such as electrolytes and proteins. Blood plasma serves as a medium for transporting blood cells and also contains nutrients, enzymes, hormones, antibodies, and gases.
Formed elements constitute the remaining 45% of the blood volume. These...
Formed elements constitute the remaining 45% of the blood volume. These...
12.1K
Dynamic Equilibrium
62.4K
A reversible chemical reaction represents a chemical process that proceeds in both forward (left to right) and reverse (right to left) directions. When the rates of the forward and reverse reactions are equal, the concentrations of the reactant and product species remain constant over time and the system is at equilibrium. A special double arrow is used to emphasize the reversible nature of the reaction. The relative concentrations of reactants and products in equilibrium systems vary greatly;...
62.4K
Composition of Body Fluids
2.5K
Water functions as a solvent accommodating various solutes, which can be categorized under electrolytes and non-electrolytes. Non-electrolytes are usually held together by covalent bonds, restricting them from dissociating in solution, thereby leading to a lack of electrically charged components upon dissolving in water. They are predominantly organic molecules, such as glucose, creatinine, and urea. Electrolytes, on the other hand, are compounds that can break down into ions in water.
2.5K


