関連する実験動画
Updated: Jul 2, 2026

08:43
Metagenomic Analysis of Silage
Published on: January 13, 2017
19.2K
バシルス・リケニフォームス発酵エキスの影響 単独またはモネンシンで飼育された乳牛の生産性能と飼料効率に対するバシルス・リケニフォームス発酵エキスの影響 乳牛の生産性能と飼料効率に対するバシルス・リケニフォームス発酵エキスの影響
S L Rigert1, P Hartoonian1, S E Omale1
1Department of Animal Science, Iowa State University, Ames, IA 50011.
Journal of dairy science
|February 22, 2026
まとめ
バチルス・リケニフォームス発酵エキス (BLFE) は乳牛の乳タンパク質と飼料効率を向上させ,モネシンが乳脂を増加させた. これらの組み合わせは対抗性を示し,さらなる研究が必要であることを示唆しました.
科学分野:
- 動物の栄養と代謝について
- 類生理学 類生理学
- 乳製品科学 乳製品科学 乳製品科学
背景:
- 哺乳期乳牛の生産性能と飼料効率の最適化は,経済的な活力にとって極めて重要です.
- モネンシンとバチルス・リケニフォームス由来発酵エキス (BLFE) は,乳牛に潜在的利益をもたらす飼料添加物です.
研究 の 目的:
- モネンシンとBLFEが乳母乳牛の生産性能と飼料効率に与える個々の効果と組み合わせた効果を調査する.
- これらのサプリメントが栄養素の消化性,の発酵,血液のアミノ酸プロファイルに与える影響を評価する.
主な方法:
- 60頭のホルシュタイン牛に2x2の因数実験を行い,モネシン (0と17.6 mg/kg DM) とBLFE (0と166 mg/kg DM) を2回投与した.
- 測定対象は,乾物摂取量 (DMI),乳分量および成分,体重 (BW) 変化,液の揮発性脂肪酸 (VFA),全経路栄養素消化率 (ATTD),および血液中のアミノ酸 (AA) 濃度であった.
- データは,ベースライン測定を考慮して,混合効果モデルを使用して分析されました.
主要な成果:
- BLFEだけで乳の出産量:DMIと乳育の純エネルギー (NEL):DMI) を増加させ,乳の出産量とタンパク質の出産量を増加させる傾向がありました.
- モネシン単独では,BWの増益を増加させ,成分調整された乳分量 (DMI) を改善する傾向があり,同時に乳脂分量も増加した.
- BLFEとモネンシンを併用すると,それぞれのサプリメントのポジティブな効果が弱まり,潜在的対抗性を示した.
結論:
- BLFEとモネシンにより,乳タンパク質と乳脂肪分別が明らかに改善され,単独で餌を与えると飼料効率が向上しました.
- 一緒に投与されたときの観察された対抗性は,モネシンとBLFEの相互作用がさらなる調査を必要とすることを示唆しています.
- 雌牛と雌牛の間で,BLFEとモネシンが飼料の効率と乳脂に与える影響に対して,異なる反応が認められた.
関連する概念動画
Microbes in Food Production
Microbial fermentation is central to food biotechnology, enhancing flavor, texture, preservation, and stability. Fermentative microorganisms metabolize carbohydrates into organic acids, alcohols, and other metabolites that inhibit spoilage organisms and improve digestibility while contributing distinctive sensory qualities.In baking, amylases naturally present in flour hydrolyze starch into monosaccharides such as glucose, which Saccharomyces cerevisiae ferments anaerobically. Through...
Microbes in Beverage Production
Alcoholic beverages such as wine, beer, and spirits are the products of microbial fermentation processes that transform simple sugars into ethanol and a wide array of complex flavor compounds. These transformations rely on the metabolic activities of specific yeasts and bacteria, which are selected and controlled to yield the desired beverage characteristics.Wine Fermentation and MaturationWine production begins with the crushing of grapes to release juice and pulp, forming a must that is...
Microbes in the Production of Fermented Foods
Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...
Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
Production of Antibiotics
Penicillin, one of the earliest and most widely used antibiotics, is produced industrially by the filamentous fungus Penicillium chrysogenum. Large stirred-tank bioreactors ranging from tens to hundreds of thousands of liters maintain tightly controlled temperature, pH, and dissolved oxygen conditions to support fungal metabolism and maximize antibiotic yield. Penicillin is a secondary metabolite, synthesized primarily during the stationary growth phase, which requires a carefully managed...
Production of Biopesticides
Biopesticides offer a sustainable alternative to chemical pesticides, utilizing microbial agents to control agricultural pests. Bacillus thuringiensis (Bt) is a widely employed bacterium known for its potent insecticidal activity. Bt biopesticides are favored for their specificity to insect pests, minimal environmental impact, and natural degradability.Mechanism of Bt Toxin Action Bt produces insecticidal crystal (Cry) proteins during its sporulation phase. These proteins form parasporal...

